mirror of https://gitee.com/bigwinds/arangodb
1527 lines
51 KiB
C++
1527 lines
51 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief document request handler
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2004-2013 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is triAGENS GmbH, Cologne, Germany
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///
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/// @author Dr. Frank Celler
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/// @author Copyright 2010-2013, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "RestDocumentHandler.h"
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#include "Basics/StringUtils.h"
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#include "BasicsC/conversions.h"
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#include "BasicsC/json.h"
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#include "BasicsC/json-utilities.h"
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#include "BasicsC/string-buffer.h"
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#include "Rest/HttpRequest.h"
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#include "VocBase/document-collection.h"
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#include "VocBase/vocbase.h"
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#include "Utils/Barrier.h"
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#include "Utilities/ResourceHolder.h"
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using namespace std;
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using namespace triagens::basics;
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using namespace triagens::rest;
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using namespace triagens::arango;
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// -----------------------------------------------------------------------------
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// --SECTION-- constructors and destructors
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup ArangoDB
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// @brief constructor
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////////////////////////////////////////////////////////////////////////////////
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RestDocumentHandler::RestDocumentHandler (HttpRequest* request, TRI_vocbase_t* vocbase)
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: RestVocbaseBaseHandler(request, vocbase) {
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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// -----------------------------------------------------------------------------
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// --SECTION-- Handler methods
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup ArangoDB
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// {@inheritDoc}
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////////////////////////////////////////////////////////////////////////////////
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bool RestDocumentHandler::isDirect () {
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return false;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// {@inheritDoc}
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////////////////////////////////////////////////////////////////////////////////
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string const& RestDocumentHandler::queue () const {
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static string const client = "STANDARD";
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return client;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// {@inheritDoc}
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////////////////////////////////////////////////////////////////////////////////
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HttpHandler::status_e RestDocumentHandler::execute () {
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// extract the sub-request type
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HttpRequest::HttpRequestType type = _request->requestType();
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// prepare logging
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static LoggerData::Task const logCreate(DOCUMENT_PATH + " [create]");
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static LoggerData::Task const logRead(DOCUMENT_PATH + " [read]");
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static LoggerData::Task const logUpdate(DOCUMENT_PATH + " [update]");
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static LoggerData::Task const logDelete(DOCUMENT_PATH + " [delete]");
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static LoggerData::Task const logHead(DOCUMENT_PATH + " [head]");
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static LoggerData::Task const logOptions(DOCUMENT_PATH + " [options]");
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static LoggerData::Task const logPatch(DOCUMENT_PATH + " [patch]");
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static LoggerData::Task const logIllegal(DOCUMENT_PATH + " [illegal]");
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LoggerData::Task const * task = &logCreate;
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switch (type) {
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case HttpRequest::HTTP_REQUEST_DELETE: task = &logDelete; break;
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case HttpRequest::HTTP_REQUEST_GET: task = &logRead; break;
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case HttpRequest::HTTP_REQUEST_HEAD: task = &logHead; break;
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case HttpRequest::HTTP_REQUEST_ILLEGAL: task = &logIllegal; break;
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case HttpRequest::HTTP_REQUEST_OPTIONS: task = &logOptions; break;
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case HttpRequest::HTTP_REQUEST_POST: task = &logCreate; break;
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case HttpRequest::HTTP_REQUEST_PUT: task = &logUpdate; break;
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case HttpRequest::HTTP_REQUEST_PATCH: task = &logUpdate; break;
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}
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_timing << *task;
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#ifdef TRI_ENABLE_LOGGER
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// if logger is not activated, the compiler will complain, so enclose it in ifdef
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LOGGER_REQUEST_IN_START_I(_timing, "");
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#endif
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// execute one of the CRUD methods
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bool res = false;
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switch (type) {
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case HttpRequest::HTTP_REQUEST_DELETE: res = deleteDocument(); break;
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case HttpRequest::HTTP_REQUEST_GET: res = readDocument(); break;
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case HttpRequest::HTTP_REQUEST_HEAD: res = checkDocument(); break;
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case HttpRequest::HTTP_REQUEST_POST: res = createDocument(); break;
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case HttpRequest::HTTP_REQUEST_PUT: res = replaceDocument(); break;
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case HttpRequest::HTTP_REQUEST_PATCH: res = updateDocument(); break;
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case HttpRequest::HTTP_REQUEST_ILLEGAL:
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default: {
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generateNotImplemented("ILLEGAL " + DOCUMENT_PATH);
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break;
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}
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}
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_timingResult = res ? RES_ERR : RES_OK;
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// this handler is done
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return HANDLER_DONE;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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// -----------------------------------------------------------------------------
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// --SECTION-- protected methods
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup ArangoDB
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// @brief creates a document
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///
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/// @RESTHEADER{POST /_api/document,creates a document}
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///
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/// @RESTBODYPARAM{document,json,required}
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/// A JSON representation of the document.
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///
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/// @RESTQUERYPARAMETERS
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///
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/// @RESTQUERYPARAM{collection,string,required}
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/// The collection name.
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///
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/// @RESTQUERYPARAM{createCollection,boolean,optional}
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/// If this parameter has a value of `true` or `yes`, then the collection is
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/// created if it does not yet exist. Other values will be ignored so the
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/// collection must be present for the operation to succeed.
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///
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/// @RESTQUERYPARAM{waitForSync,boolean,optional}
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/// Wait until document has been synced to disk.
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///
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/// @RESTDESCRIPTION
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/// Creates a new document in the collection named `collection`. A JSON
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/// representation of the document must be passed as the body of the POST
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/// request.
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///
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/// If the document was created successfully, then the "Location" header
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/// contains the path to the newly created document. The "ETag" header field
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/// contains the revision of the document.
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///
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/// The body of the response contains a JSON object with the following
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/// attributes:
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///
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/// - `_id` contains the document handle of the newly created document
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/// - `_key` contains the document key
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/// - `_rev` contains the document revision
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///
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/// If the collection parameter `waitForSync` is `false`, then the call returns
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/// as soon as the document has been accepted. It will not wait until the
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/// document has been synced to disk.
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///
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/// Optionally, the URL parameter `waitForSync` can be used to force
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/// synchronisation of the document creation operation to disk even in case that
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/// the `waitForSync` flag had been disabled for the entire collection. Thus,
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/// the `waitForSync` URL parameter can be used to force synchronisation of just
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/// this specific operations. To use this, set the `waitForSync` parameter to
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/// `true`. If the `waitForSync` parameter is not specified or set to `false`,
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/// then the collection's default `waitForSync` behavior is applied. The
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/// `waitForSync` URL parameter cannot be used to disable synchronisation for
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/// collections that have a default `waitForSync` value of `true`.
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///
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/// @RESTRETURNCODES
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///
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/// @RESTRETURNCODE{201}
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/// is returned if the document was created sucessfully and `waitForSync` was
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/// `true`.
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///
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/// @RESTRETURNCODE{202}
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/// is returned if the document was created sucessfully and `waitForSync` was
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/// `false`.
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///
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/// @RESTRETURNCODE{400}
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/// is returned if the body does not contain a valid JSON representation of a
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/// document. The response body contains an error document in this case.
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///
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/// @RESTRETURNCODE{404}
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/// is returned if the collection specified by `collection` is unknown. The
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/// response body contains an error document in this case.
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///
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/// @EXAMPLES
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///
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/// Create a document given a collection named `products`. Note that the
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/// revision identifier might or might not by equal to the auto-generated
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/// key.
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerPostCreate1}
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/// var cn = "products";
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/// db._drop(cn);
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/// db._create(cn, { waitForSync: true });
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///
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/// var url = "/_api/document?collection=" + cn;
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/// var body = '{ "Hello": "World" }';
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///
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/// var response = logCurlRequest('POST', url, body);
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///
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/// assert(response.code === 201);
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///
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/// logJsonResponse(response);
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Create a document in a collection named `products` with a collection-level
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/// `waitForSync` value of `false`.
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerPostAccept1}
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/// var cn = "products";
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/// db._drop(cn);
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/// db._create(cn, { waitForSync: false });
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///
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/// var url = "/_api/document?collection=" + cn;
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/// var body = '{ "Hello": "World" }';
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///
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/// var response = logCurlRequest('POST', url, body);
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///
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/// assert(response.code === 202);
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///
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/// logJsonResponse(response);
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Create a document in a collection with a collection-level `waitForSync`
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/// value of `false`, but using the `waitForSync` URL parameter.
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerPostWait1}
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/// var cn = "products";
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/// db._drop(cn);
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/// db._create(cn, { waitForSync: false });
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///
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/// var url = "/_api/document?collection=" + cn + "&waitForSync=true";
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/// var body = '{ "Hello": "World" }';
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///
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/// var response = logCurlRequest('POST', url, body);
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///
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/// assert(response.code === 201);
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///
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/// logJsonResponse(response);
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Create a document in a new, named collection
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerPostCreate2}
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/// var cn = "products";
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/// db._drop(cn);
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///
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/// var url = "/_api/document?collection=" + cn + "&createCollection=true";
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/// var body = '{ "Hello": "World" }';
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///
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/// var response = logCurlRequest('POST', url, body);
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///
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/// assert(response.code === 202);
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///
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/// logJsonResponse(response);
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Unknown collection name:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerPostUnknownCollection1}
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/// var cn = "products";
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/// db._drop(cn);
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///
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/// var url = "/_api/document?collection=" + cn;
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/// var body = '{ "Hello": "World" }';
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///
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/// var response = logCurlRequest('POST', url, body);
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///
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/// assert(response.code === 404);
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///
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/// logJsonResponse(response);
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Illegal document:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerPostBadJson1}
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/// var cn = "products";
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/// db._drop(cn);
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///
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/// var url = "/_api/document?collection=" + cn;
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/// var body = '{ 1: "World" }';
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///
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/// var response = logCurlRequest('POST', url, body);
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///
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/// assert(response.code === 400);
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///
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/// logJsonResponse(response);
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/// @END_EXAMPLE_ARANGOSH_RUN
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////////////////////////////////////////////////////////////////////////////////
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bool RestDocumentHandler::createDocument () {
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vector<string> const& suffix = _request->suffix();
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if (suffix.size() != 0) {
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generateError(HttpResponse::BAD,
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TRI_ERROR_HTTP_SUPERFLUOUS_SUFFICES,
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"superfluous suffix, expecting " + DOCUMENT_PATH + "?collection=<identifier>");
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return false;
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}
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// extract the cid
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bool found;
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char const* collection = _request->value("collection", found);
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if (! found || *collection == '\0') {
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generateError(HttpResponse::BAD,
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TRI_ERROR_ARANGO_COLLECTION_PARAMETER_MISSING,
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"'collection' is missing, expecting " + DOCUMENT_PATH + "?collection=<identifier>");
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return false;
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}
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const bool waitForSync = extractWaitForSync();
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// auto-ptr that will free JSON data when scope is left
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ResourceHolder holder;
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TRI_json_t* json = parseJsonBody();
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if (! holder.registerJson(TRI_UNKNOWN_MEM_ZONE, json)) {
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return false;
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}
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if (! checkCreateCollection(collection, getCollectionType())) {
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return false;
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}
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if (json->_type != TRI_JSON_ARRAY) {
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generateTransactionError(collection, TRI_ERROR_ARANGO_DOCUMENT_TYPE_INVALID);
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return false;
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}
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// find and load collection given by name or identifier
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SingleCollectionWriteTransaction<StandaloneTransaction<RestTransactionContext>, 1> trx(_vocbase, _resolver, collection);
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// .............................................................................
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// inside write transaction
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// .............................................................................
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int res = trx.begin();
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if (res != TRI_ERROR_NO_ERROR) {
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generateTransactionError(collection, res);
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return false;
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}
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if (trx.primaryCollection()->base._info._type != TRI_COL_TYPE_DOCUMENT) {
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// check if we are inserting with the DOCUMENT handler into a non-DOCUMENT collection
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generateError(HttpResponse::BAD, TRI_ERROR_ARANGO_COLLECTION_TYPE_INVALID);
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return false;
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}
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const TRI_voc_cid_t cid = trx.cid();
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TRI_doc_mptr_t document;
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res = trx.createDocument(&document, json, waitForSync);
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const bool wasSynchronous = trx.synchronous();
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res = trx.finish(res);
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// .............................................................................
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// outside write transaction
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// .............................................................................
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if (res != TRI_ERROR_NO_ERROR) {
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generateTransactionError(collection, res);
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return false;
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}
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assert(document._key != 0);
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// generate result
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if (wasSynchronous) {
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generateCreated(cid, document._key, document._rid);
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}
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else {
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generateAccepted(cid, document._key, document._rid);
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}
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief reads a single or all documents
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///
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/// Either readSingleDocument or readAllDocuments.
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////////////////////////////////////////////////////////////////////////////////
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bool RestDocumentHandler::readDocument () {
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const size_t len = _request->suffix().size();
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switch (len) {
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case 0:
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return readAllDocuments();
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case 1:
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generateError(HttpResponse::BAD,
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TRI_ERROR_ARANGO_DOCUMENT_HANDLE_BAD,
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"expecting GET /_api/document/<document-handle>");
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return false;
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case 2:
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return readSingleDocument(true);
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default:
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generateError(HttpResponse::BAD,
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TRI_ERROR_HTTP_SUPERFLUOUS_SUFFICES,
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"expecting GET /_api/document/<document-handle> or GET /_api/document?collection=<collection-name>");
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return false;
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}
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}
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|
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////////////////////////////////////////////////////////////////////////////////
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/// @brief reads a single document
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///
|
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/// @RESTHEADER{GET /_api/document/`document-handle`,reads a document}
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///
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/// @RESTURLPARAMETERS
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///
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/// @RESTURLPARAM{document-handle,string,required}
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/// The Handle of the Document.
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///
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/// @RESTHEADERPARAMETERS
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///
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/// @RESTHEADERPARAM{If-None-Match,string,optional}
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/// If the "If-None-Match" header is given, then it must contain exactly one
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/// etag. The document is returned, if it has a different revision than the
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/// given etag. Otherwise a `HTTP 304` is returned.
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///
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/// @RESTHEADERPARAM{If-Match,string,optional}
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/// If the "If-Match" header is given, then it must contain exactly one
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/// etag. The document is returned, if it has the same revision ad the
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/// given etag. Otherwise a `HTTP 412` is returned. As an alternative
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/// you can supply the etag in an attribute `rev` in the URL.
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///
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/// @RESTDESCRIPTION
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/// Returns the document identified by `document-handle`. The returned
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/// document contains two special attributes: `_id` containing the document
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/// handle and `_rev` containing the revision.
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///
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/// @RESTRETURNCODES
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///
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/// @RESTRETURNCODE{200}
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/// is returned if the document was found
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///
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/// @RESTRETURNCODE{404}
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/// is returned if the document or collection was not found
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///
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/// @RESTRETURNCODE{304}
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/// is returned if the "If-None-Match" header is given and the document has
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/// same version
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///
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/// @RESTRETURNCODE{412}
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/// is returned if a "If-Match" header or `rev` is given and the found
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/// document has a different version
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///
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/// @EXAMPLES
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///
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/// Use a document handle:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerReadDocument}
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/// var cn = "products";
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/// db._drop(cn);
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/// db._create(cn);
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///
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/// var document = db.products.save({"hello":"world"});
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/// var url = "/_api/document/" + document._id;
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///
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/// var response = logCurlRequest('GET', url);
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///
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/// assert(response.code === 200);
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///
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/// logJsonResponse(response);
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Use a document handle and an etag:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerReadDocumentIfNoneMatch}
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/// var cn = "products";
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/// db._drop(cn);
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/// db._create(cn);
|
|
///
|
|
/// var document = db.products.save({"hello":"world"});
|
|
/// var url = "/_api/document/" + document._id;
|
|
/// var headers = {"If-None-Match": "\"" + document._rev + "\""};
|
|
///
|
|
/// var response = logCurlRequest('GET', url, "", headers);
|
|
///
|
|
/// assert(response.code === 304);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
///
|
|
/// Unknown document handle:
|
|
///
|
|
/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerReadDocumentUnknownHandle}
|
|
/// var url = "/_api/document/products/unknownhandle";
|
|
///
|
|
/// var response = logCurlRequest('GET', url);
|
|
///
|
|
/// assert(response.code === 404);
|
|
///
|
|
/// logJsonResponse(response);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool RestDocumentHandler::readSingleDocument (bool generateBody) {
|
|
vector<string> const& suffix = _request->suffix();
|
|
|
|
// split the document reference
|
|
const string& collection = suffix[0];
|
|
const string& key = suffix[1];
|
|
|
|
// find and load collection given by name or identifier
|
|
SingleCollectionReadOnlyTransaction<StandaloneTransaction<RestTransactionContext> > trx(_vocbase, _resolver, collection);
|
|
|
|
// .............................................................................
|
|
// inside read transaction
|
|
// .............................................................................
|
|
|
|
int res = trx.begin();
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
generateTransactionError(collection, res);
|
|
return false;
|
|
}
|
|
|
|
const TRI_voc_cid_t cid = trx.cid();
|
|
TRI_doc_mptr_t document;
|
|
|
|
res = trx.read(&document, key);
|
|
|
|
TRI_primary_collection_t* primary = trx.primaryCollection();
|
|
assert(primary != 0);
|
|
TRI_shaper_t* shaper = primary->_shaper;
|
|
|
|
// register a barrier. will be destroyed automatically
|
|
Barrier barrier(primary);
|
|
|
|
res = trx.finish(res);
|
|
|
|
// .............................................................................
|
|
// outside read transaction
|
|
// .............................................................................
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
generateTransactionError(collection, res, (TRI_voc_key_t) key.c_str());
|
|
return false;
|
|
}
|
|
|
|
if (document._key == 0 || document._data == 0) {
|
|
generateDocumentNotFound(cid, (TRI_voc_key_t) key.c_str());
|
|
return false;
|
|
}
|
|
|
|
// generate result
|
|
assert(document._key != 0);
|
|
|
|
const TRI_voc_rid_t rid = document._rid;
|
|
// check for an etag
|
|
const TRI_voc_rid_t ifNoneRid = extractRevision("if-none-match", 0);
|
|
const TRI_voc_rid_t ifRid = extractRevision("if-match", "rev");
|
|
|
|
if (ifNoneRid == 0) {
|
|
if (ifRid == 0 || ifRid == rid) {
|
|
generateDocument(cid, &document, shaper, generateBody);
|
|
}
|
|
else {
|
|
generatePreconditionFailed(cid, document._key, rid);
|
|
}
|
|
}
|
|
else if (ifNoneRid == rid) {
|
|
if (ifRid == 0 || ifRid == rid) {
|
|
generateNotModified(rid);
|
|
}
|
|
else {
|
|
generatePreconditionFailed(cid, document._key, rid);
|
|
}
|
|
}
|
|
else {
|
|
if (ifRid == 0 || ifRid == rid) {
|
|
generateDocument(cid, &document, shaper, generateBody);
|
|
}
|
|
else {
|
|
generatePreconditionFailed(cid, document._key, rid);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief reads all documents from collection
|
|
///
|
|
/// @RESTHEADER{GET /_api/document,reads all documents from collection}
|
|
///
|
|
/// @RESTQUERYPARAMETERS
|
|
///
|
|
/// @RESTQUERYPARAM{collection,string,required}
|
|
/// The Id of the collection.
|
|
///
|
|
/// @RESTDESCRIPTION
|
|
/// Returns a list of all URI for all documents from the collection identified
|
|
/// by `collection`.
|
|
///
|
|
/// @RESTRETURNCODES
|
|
///
|
|
/// @RESTRETURNCODE{200}
|
|
/// All went good.
|
|
///
|
|
/// @RESTRETURNCODE{404}
|
|
/// The collection does not exist.
|
|
///
|
|
/// @EXAMPLES
|
|
///
|
|
/// Returns a collection.
|
|
///
|
|
/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerReadDocumentAll}
|
|
/// var cn = "products";
|
|
/// db._drop(cn);
|
|
/// db._create(cn);
|
|
///
|
|
/// db.products.save({"hello1":"world1"});
|
|
/// db.products.save({"hello2":"world1"});
|
|
/// db.products.save({"hello3":"world1"});
|
|
/// var url = "/_api/document/?collection=" + cn;
|
|
///
|
|
/// var response = logCurlRequest('GET', url);
|
|
///
|
|
/// assert(response.code === 200);
|
|
///
|
|
/// logJsonResponse(response);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
///
|
|
/// Collection does not exist.
|
|
///
|
|
/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerReadDocumentAllCollectionDoesNotExist}
|
|
/// var cn = "doesnotexist";
|
|
/// db._drop(cn);
|
|
/// var url = "/_api/document/?collection=" + cn;
|
|
///
|
|
/// var response = logCurlRequest('GET', url);
|
|
///
|
|
/// assert(response.code === 404);
|
|
///
|
|
/// logJsonResponse(response);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
///
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool RestDocumentHandler::readAllDocuments () {
|
|
bool found;
|
|
string collection = _request->value("collection", found);
|
|
|
|
// find and load collection given by name or identifier
|
|
SingleCollectionReadOnlyTransaction<StandaloneTransaction<RestTransactionContext> > trx(_vocbase, _resolver, collection);
|
|
|
|
vector<string> ids;
|
|
|
|
// .............................................................................
|
|
// inside read transaction
|
|
// .............................................................................
|
|
|
|
int res = trx.begin();
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
generateTransactionError(collection, res);
|
|
return false;
|
|
}
|
|
|
|
const TRI_voc_cid_t cid = trx.cid();
|
|
|
|
res = trx.read(ids);
|
|
|
|
res = trx.finish(res);
|
|
|
|
// .............................................................................
|
|
// outside read transaction
|
|
// .............................................................................
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
generateTransactionError(collection, res);
|
|
return false;
|
|
}
|
|
|
|
// generate result
|
|
string result("{ \"documents\" : [\n");
|
|
|
|
bool first = true;
|
|
string prefix = '"' + DOCUMENT_PATH + '/' + _resolver.getCollectionName(cid) + '/';
|
|
|
|
for (vector<string>::const_iterator i = ids.begin(); i != ids.end(); ++i) {
|
|
// collection names do not need to be JSON-escaped
|
|
// keys do not need to be JSON-escaped
|
|
result += prefix + (*i) + '"';
|
|
|
|
if (first) {
|
|
prefix = ",\n" + prefix;
|
|
first = false;
|
|
}
|
|
}
|
|
|
|
result += "\n] }";
|
|
|
|
// and generate a response
|
|
_response = createResponse(HttpResponse::OK);
|
|
_response->setContentType("application/json; charset=utf-8");
|
|
|
|
_response->body().appendText(result);
|
|
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief reads a single document head
|
|
///
|
|
/// @RESTHEADER{HEAD /_api/document/`document-handle`,reads a document header}
|
|
///
|
|
/// @RESTURLPARAMETERS
|
|
///
|
|
/// @RESTURLPARAM{document-handle,string,required}
|
|
/// The Handle of the Document.
|
|
///
|
|
/// @RESTQUERYPARAMETERS
|
|
///
|
|
/// @RESTQUERYPARAM{rev,string,optional}
|
|
/// You can conditionally delete a document based on a target revision id by
|
|
/// using the `rev` URL parameter.
|
|
///
|
|
/// @RESTQUERYPARAM{policy,string,optional}
|
|
/// To control the update behavior in case there is a revision mismatch, you
|
|
/// can use the `policy` parameter. This is the same as when replacing
|
|
/// documents (see replacing documents for more details).
|
|
///
|
|
/// @RESTHEADERPARAMETERS
|
|
///
|
|
/// @RESTHEADERPARAM{If-Match,string,optional}
|
|
/// You can conditionally get a document based on a target revision id by
|
|
/// using the `if-match` HTTP header.
|
|
///
|
|
/// @RESTDESCRIPTION
|
|
/// Like `GET`, but only returns the header fields and not the body. You
|
|
/// can use this call to get the current revision of a document or check if
|
|
/// the document was deleted.
|
|
///
|
|
/// @RESTRETURNCODES
|
|
///
|
|
/// @RESTRETURNCODE{200}
|
|
/// is returned if the document was found
|
|
///
|
|
/// @RESTRETURNCODE{404}
|
|
/// is returned if the document or collection was not found
|
|
///
|
|
/// @RESTRETURNCODE{304}
|
|
/// is returned if the "If-None-Match" header is given and the document has
|
|
/// same version
|
|
///
|
|
/// @RESTRETURNCODE{412}
|
|
/// is returned if a "If-Match" header or `rev` is given and the found
|
|
/// document has a different version
|
|
///
|
|
/// @EXAMPLES
|
|
///
|
|
/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerReadDocumentHead}
|
|
/// var cn = "products";
|
|
/// db._drop(cn);
|
|
/// db._create(cn);
|
|
///
|
|
/// var document = db.products.save({"hello":"world"});
|
|
/// var url = "/_api/document/" + document._id;
|
|
///
|
|
/// var response = logCurlRequest('HEAD', url);
|
|
///
|
|
/// assert(response.code === 200);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool RestDocumentHandler::checkDocument () {
|
|
vector<string> const& suffix = _request->suffix();
|
|
|
|
if (suffix.size() != 2) {
|
|
generateError(HttpResponse::BAD,
|
|
TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"expecting URI /_api/document/<document-handle>");
|
|
return false;
|
|
}
|
|
|
|
return readSingleDocument(false);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief replaces a document
|
|
///
|
|
/// @RESTHEADER{PUT /_api/document/`document-handle`,replaces a document}
|
|
///
|
|
/// @RESTBODYPARAM{document,json,required}
|
|
/// A JSON representation of the new document.
|
|
///
|
|
/// @RESTURLPARAMETERS
|
|
///
|
|
/// @RESTURLPARAM{document-handle,string,required}
|
|
/// The Handle of the Document.
|
|
///
|
|
/// @RESTQUERYPARAMETERS
|
|
///
|
|
/// @RESTQUERYPARAM{waitForSync,boolean,optional}
|
|
/// Wait until document has been synced to disk.
|
|
///
|
|
/// @RESTQUERYPARAM{rev,string,optional}
|
|
/// You can conditionally replace a document based on a target revision id by
|
|
/// using the `rev` URL parameter.
|
|
///
|
|
/// @RESTQUERYPARAM{policy,string,optional}
|
|
/// To control the update behavior in case there is a revision mismatch, you
|
|
/// can use the `policy` parameter. This is the same as when replacing
|
|
/// documents (see replacing documents for more details).
|
|
///
|
|
/// @RESTHEADERPARAMETERS
|
|
///
|
|
/// @RESTHEADERPARAM{If-Match,string,optional}
|
|
/// You can conditionally replace a document based on a target revision id by
|
|
/// using the `if-match` HTTP header.
|
|
///
|
|
/// @RESTDESCRIPTION
|
|
/// Completely updates (i.e. replaces) the document identified by `document-handle`.
|
|
/// If the document exists and can be updated, then a `HTTP 201` is returned
|
|
/// and the "ETag" header field contains the new revision of the document.
|
|
///
|
|
/// If the new document passed in the body of the request contains the
|
|
/// `document-handle` in the attribute `_id` and the revision in `_rev`,
|
|
/// these attributes will be ignored. Only the URI and the "ETag" header are
|
|
/// relevant in order to avoid confusion when using proxies.
|
|
///
|
|
/// Optionally, the URL parameter `waitForSync` can be used to force
|
|
/// synchronisation of the document replacement operation to disk even in case
|
|
/// that the `waitForSync` flag had been disabled for the entire collection.
|
|
/// Thus, the `waitForSync` URL parameter can be used to force synchronisation
|
|
/// of just specific operations. To use this, set the `waitForSync` parameter
|
|
/// to `true`. If the `waitForSync` parameter is not specified or set to
|
|
/// `false`, then the collection's default `waitForSync` behavior is
|
|
/// applied. The `waitForSync` URL parameter cannot be used to disable
|
|
/// synchronisation for collections that have a default `waitForSync` value
|
|
/// of `true`.
|
|
///
|
|
/// The body of the response contains a JSON object with the information about
|
|
/// the handle and the revision. The attribute `_id` contains the known
|
|
/// `document-handle` of the updated document, the attribute `_rev`
|
|
/// contains the new document revision.
|
|
///
|
|
/// If the document does not exist, then a `HTTP 404` is returned and the
|
|
/// body of the response contains an error document.
|
|
///
|
|
/// There are two ways for specifying the targeted document revision id for
|
|
/// conditional replacements (i.e. replacements that will only be executed if
|
|
/// the revision id found in the database matches the document revision id specified
|
|
/// in the request):
|
|
/// - specifying the target revision in the `rev` URL query parameter
|
|
/// - specifying the target revision in the `if-match` HTTP header
|
|
///
|
|
/// Specifying a target revision is optional, however, if done, only one of the
|
|
/// described mechanisms must be used (either the `rev` URL parameter or the
|
|
/// `if-match` HTTP header).
|
|
/// Regardless which mechanism is used, the parameter needs to contain the target
|
|
/// document revision id as returned in the `_rev` attribute of a document or
|
|
/// by an HTTP `etag` header.
|
|
///
|
|
/// For example, to conditionally replace a document based on a specific revision
|
|
/// id, you the following request:
|
|
///
|
|
/// - PUT /_api/document/`document-handle`?rev=`etag`
|
|
///
|
|
/// If a target revision id is provided in the request (e.g. via the `etag` value
|
|
/// in the `rev` URL query parameter above), ArangoDB will check that
|
|
/// the revision id of the document found in the database is equal to the target
|
|
/// revision id provided in the request. If there is a mismatch between the revision
|
|
/// id, then by default a `HTTP 412` conflict is returned and no replacement is
|
|
/// performed.
|
|
///
|
|
/// The conditional update behavior can be overriden with the `policy` URL query parameter:
|
|
///
|
|
/// - PUT /_api/document/`document-handle`?policy=`policy`
|
|
///
|
|
/// If `policy` is set to `error`, then the behavior is as before: replacements
|
|
/// will fail if the revision id found in the database does not match the target
|
|
/// revision id specified in the request.
|
|
///
|
|
/// If `policy` is set to `last`, then the replacement will succeed, even if the
|
|
/// revision id found in the database does not match the target revision id specified
|
|
/// in the request. You can use the `last` `policy` to force replacements.
|
|
///
|
|
/// @RESTRETURNCODES
|
|
///
|
|
/// @RESTRETURNCODE{201}
|
|
/// is returned if the document was created sucessfully and `waitForSync` was
|
|
/// `true`.
|
|
///
|
|
/// @RESTRETURNCODE{202}
|
|
/// is returned if the document was created sucessfully and `waitForSync` was
|
|
/// `false`.
|
|
///
|
|
/// @RESTRETURNCODE{400}
|
|
/// is returned if the body does not contain a valid JSON representation of a
|
|
/// document. The response body contains an error document in this case.
|
|
///
|
|
/// @RESTRETURNCODE{404}
|
|
/// is returned if collection or the document was not found
|
|
///
|
|
/// @RESTRETURNCODE{412}
|
|
/// is returned if a "If-Match" header or `rev` is given and the found
|
|
/// document has a different version
|
|
///
|
|
/// @EXAMPLES
|
|
///
|
|
/// Using document handle:
|
|
///
|
|
/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerUpdateDocument}
|
|
/// var cn = "products";
|
|
/// db._drop(cn);
|
|
/// db._create(cn);
|
|
///
|
|
/// var document = db.products.save({"hello":"world"});
|
|
/// var url = "/_api/document/" + document._id;
|
|
///
|
|
/// var response = logCurlRequest('PUT', url, '{"Hello": "you"}');
|
|
///
|
|
/// assert(response.code === 202);
|
|
///
|
|
/// logJsonResponse(response);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
///
|
|
/// Unknown document handle:
|
|
///
|
|
/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerUpdateDocumentUnknownHandle}
|
|
/// var cn = "products";
|
|
/// db._drop(cn);
|
|
/// db._create(cn);
|
|
///
|
|
/// var document = db.products.save({"hello":"world"});
|
|
/// db.products.remove(document._id);
|
|
/// var url = "/_api/document/" + document._id;
|
|
///
|
|
/// var response = logCurlRequest('PUT', url, "{}");
|
|
///
|
|
/// assert(response.code === 404);
|
|
///
|
|
/// logJsonResponse(response);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
///
|
|
/// Produce a revision conflict:
|
|
///
|
|
/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerUpdateDocumentIfMatchOther}
|
|
/// var cn = "products";
|
|
/// db._drop(cn);
|
|
/// db._create(cn);
|
|
///
|
|
/// var document = db.products.save({"hello":"world"});
|
|
/// var document2 = db.products.save({"hello2":"world"});
|
|
/// var url = "/_api/document/" + document._id;
|
|
/// var headers = {"If-Match": "\"" + document2._rev + "\""};
|
|
///
|
|
/// var response = logCurlRequest('PUT', url, '{"other":"content"}', headers);
|
|
///
|
|
/// assert(response.code === 412);
|
|
///
|
|
/// logJsonResponse(response);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
///
|
|
/// Last write wins:
|
|
///
|
|
/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerUpdateDocumentIfMatchOtherLastWriteWins}
|
|
/// var cn = "products";
|
|
/// db._drop(cn);
|
|
/// db._create(cn);
|
|
///
|
|
/// var document = db.products.save({"hello":"world"});
|
|
/// var document2 = db.products.replace(document._id,{"other":"content"});
|
|
/// var url = "/_api/document/products/" + document._rev + "?policy=last";
|
|
/// var headers = {"If-Match": "\"" + document2._rev + "\""};
|
|
///
|
|
/// var response = logCurlRequest('PUT', url, "{}", headers);
|
|
/// assert(response.code === 202);
|
|
///
|
|
/// logJsonResponse(response);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
///
|
|
/// Alternative to header field:
|
|
///
|
|
/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerUpdateDocumentRevOther}
|
|
/// var cn = "products";
|
|
/// db._drop(cn);
|
|
/// db._create(cn);
|
|
///
|
|
/// var document = db.products.save({"hello":"world"});
|
|
/// var document2 = db.products.save({"hello2":"world"});
|
|
/// var url = "/_api/document/" + document._id + "?rev=" + document2._rev;
|
|
///
|
|
/// var response = logCurlRequest('PUT', url, '{"other":"content"}');
|
|
///
|
|
/// assert(response.code === 412);
|
|
///
|
|
/// logJsonResponse(response);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool RestDocumentHandler::replaceDocument () {
|
|
return modifyDocument(false);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief updates a document
|
|
///
|
|
/// @RESTHEADER{PATCH /_api/document/`document-handle`,patches a document}
|
|
///
|
|
/// @RESTBODYPARAM{document,json,required}
|
|
/// A JSON representation of the new document.
|
|
///
|
|
/// @RESTURLPARAMETERS
|
|
///
|
|
/// @RESTURLPARAM{document-handle,string,required}
|
|
/// The Handle of the Document.
|
|
///
|
|
/// @RESTQUERYPARAMETERS
|
|
///
|
|
/// @RESTQUERYPARAM{keepNull,string,optional}
|
|
/// If the intention is to delete existing attributes with the patch command,
|
|
/// the URL query parameter `keepNull` can be used with a value of `false`.
|
|
/// This will modify the behavior of the patch command to remove any attributes
|
|
/// from the existing document that are contained in the patch document with an
|
|
/// attribute value of `null`.
|
|
///
|
|
/// @RESTQUERYPARAM{waitForSync,boolean,optional}
|
|
/// Wait until document has been synced to disk.
|
|
///
|
|
/// @RESTQUERYPARAM{rev,string,optional}
|
|
/// You can conditionally patch a document based on a target revision id by
|
|
/// using the `rev` URL parameter.
|
|
///
|
|
/// @RESTQUERYPARAM{policy,string,optional}
|
|
/// To control the update behavior in case there is a revision mismatch, you
|
|
/// can use the `policy` parameter.
|
|
///
|
|
/// @RESTHEADERPARAMETERS
|
|
///
|
|
/// @RESTHEADERPARAM{If-Match,string,optional}
|
|
/// You can conditionally delete a document based on a target revision id by
|
|
/// using the `if-match` HTTP header.
|
|
///
|
|
/// @RESTDESCRIPTION
|
|
/// Partially updates the document identified by `document-handle`.
|
|
/// The body of the request must contain a JSON document with the attributes
|
|
/// to patch (the patch document). All attributes from the patch document will
|
|
/// be added to the existing document if they do not yet exist, and overwritten
|
|
/// in the existing document if they do exist there.
|
|
///
|
|
/// Setting an attribute value to `null` in the patch document will cause a
|
|
/// value of `null` be saved for the attribute by default.
|
|
///
|
|
/// Optionally, the URL parameter `waitForSync` can be used to force
|
|
/// synchronisation of the document update operation to disk even in case
|
|
/// that the `waitForSync` flag had been disabled for the entire collection.
|
|
/// Thus, the `waitForSync` URL parameter can be used to force synchronisation
|
|
/// of just specific operations. To use this, set the `waitForSync` parameter
|
|
/// to `true`. If the `waitForSync` parameter is not specified or set to
|
|
/// `false`, then the collection's default `waitForSync` behavior is
|
|
/// applied. The `waitForSync` URL parameter cannot be used to disable
|
|
/// synchronisation for collections that have a default `waitForSync` value
|
|
/// of `true`.
|
|
///
|
|
/// The body of the response contains a JSON object with the information about
|
|
/// the handle and the revision. The attribute `_id` contains the known
|
|
/// `document-handle` of the updated document, the attribute `_rev`
|
|
/// contains the new document revision.
|
|
///
|
|
/// If the document does not exist, then a `HTTP 404` is returned and the
|
|
/// body of the response contains an error document.
|
|
///
|
|
/// You can conditionally update a document based on a target revision id by
|
|
/// using either the `rev` URL parameter or the `if-match` HTTP header.
|
|
/// To control the update behavior in case there is a revision mismatch, you
|
|
/// can use the `policy` parameter. This is the same as when replacing
|
|
/// documents (see replacing documents for details).
|
|
///
|
|
/// @RESTRETURNCODES
|
|
///
|
|
/// @RESTRETURNCODE{201}
|
|
/// is returned if the document was created sucessfully and `waitForSync` was
|
|
/// `true`.
|
|
///
|
|
/// @RESTRETURNCODE{202}
|
|
/// is returned if the document was created sucessfully and `waitForSync` was
|
|
/// `false`.
|
|
///
|
|
/// @RESTRETURNCODE{400}
|
|
/// is returned if the body does not contain a valid JSON representation of a
|
|
/// document. The response body contains an error document in this case.
|
|
///
|
|
/// @RESTRETURNCODE{404}
|
|
/// is returned if collection or the document was not found
|
|
///
|
|
/// @RESTRETURNCODE{412}
|
|
/// is returned if a "If-Match" header or `rev` is given and the found
|
|
/// document has a different version
|
|
///
|
|
/// @EXAMPLES
|
|
///
|
|
/// patches an existing document with new content.
|
|
///
|
|
/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerPatchDocument}
|
|
/// var cn = "products";
|
|
/// db._drop(cn);
|
|
/// db._create(cn);
|
|
///
|
|
/// var document = db.products.save({"one":"world"});
|
|
/// var url = "/_api/document/" + document._id;
|
|
///
|
|
/// var response = logCurlRequest("PATCH", url, { "hello": "world" });
|
|
///
|
|
/// assert(response.code === 202);
|
|
///
|
|
/// logJsonResponse(response);
|
|
/// var response2 = logCurlRequest("PATCH", url, { "numbers": { "one": 1, "two": 2, "three": 3, "empty": null } });
|
|
/// assert(response2.code === 202);
|
|
/// logJsonResponse(response2);
|
|
/// var response3 = logCurlRequest("GET", url);
|
|
/// assert(response3.code === 200);
|
|
/// logJsonResponse(response3);
|
|
/// var response4 = logCurlRequest("PATCH", url + "?keepNull=false", { "hello": null, "numbers": { "four": 4 } });
|
|
/// assert(response4.code === 202);
|
|
/// logJsonResponse(response4);
|
|
/// var response5 = logCurlRequest("GET", url);
|
|
/// assert(response5.code === 200);
|
|
/// logJsonResponse(response5);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool RestDocumentHandler::updateDocument () {
|
|
return modifyDocument(true);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief helper function for replaceDocument and updateDocument
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool RestDocumentHandler::modifyDocument (bool isPatch) {
|
|
vector<string> const& suffix = _request->suffix();
|
|
|
|
if (suffix.size() != 2) {
|
|
string msg("expecting ");
|
|
msg.append(isPatch ? "PATCH" : "PUT");
|
|
msg.append(" /_api/document/<document-handle>");
|
|
|
|
generateError(HttpResponse::BAD,
|
|
TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
msg);
|
|
return false;
|
|
}
|
|
|
|
// split the document reference
|
|
const string& collection = suffix[0];
|
|
const string& key = suffix[1];
|
|
|
|
// auto-ptr that will free JSON data when scope is left
|
|
ResourceHolder holder;
|
|
|
|
TRI_json_t* json = parseJsonBody();
|
|
|
|
if (! holder.registerJson(TRI_UNKNOWN_MEM_ZONE, json)) {
|
|
return false;
|
|
}
|
|
|
|
if (json->_type != TRI_JSON_ARRAY) {
|
|
generateTransactionError(collection, TRI_ERROR_ARANGO_DOCUMENT_TYPE_INVALID);
|
|
return false;
|
|
}
|
|
|
|
// extract the revision
|
|
const TRI_voc_rid_t revision = extractRevision("if-match", "rev");
|
|
|
|
// extract or chose the update policy
|
|
const TRI_doc_update_policy_e policy = extractUpdatePolicy();
|
|
const bool waitForSync = extractWaitForSync();
|
|
|
|
TRI_doc_mptr_t document;
|
|
|
|
// find and load collection given by name or identifier
|
|
SingleCollectionWriteTransaction<StandaloneTransaction<RestTransactionContext>, 1> trx(_vocbase, _resolver, collection);
|
|
|
|
// .............................................................................
|
|
// inside write transaction
|
|
// .............................................................................
|
|
|
|
int res = trx.begin();
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
generateTransactionError(collection, res);
|
|
return false;
|
|
}
|
|
|
|
const TRI_voc_cid_t cid = trx.cid();
|
|
TRI_voc_rid_t rid = 0;
|
|
TRI_primary_collection_t* primary = trx.primaryCollection();
|
|
assert(primary != 0);
|
|
TRI_shaper_t* shaper = primary->_shaper;
|
|
|
|
if (isPatch) {
|
|
// patching an existing document
|
|
bool nullMeansRemove;
|
|
bool found;
|
|
char const* valueStr = _request->value("keepNull", found);
|
|
if (! found || StringUtils::boolean(valueStr)) {
|
|
// default: null values are saved as Null
|
|
nullMeansRemove = false;
|
|
}
|
|
else {
|
|
// delete null attributes
|
|
nullMeansRemove = true;
|
|
}
|
|
|
|
// read the existing document
|
|
TRI_doc_mptr_t oldDocument;
|
|
|
|
// create a write lock that spans the initial read and the update
|
|
// otherwise the update is not atomic
|
|
trx.lockWrite();
|
|
|
|
// do not lock again
|
|
res = trx.read(&oldDocument, key);
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
trx.abort();
|
|
generateTransactionError(collection, res, (TRI_voc_key_t) key.c_str(), rid);
|
|
|
|
return false;
|
|
}
|
|
|
|
if (oldDocument._key == 0 || oldDocument._data == 0) {
|
|
trx.abort();
|
|
generateTransactionError(collection, TRI_ERROR_ARANGO_DOCUMENT_NOT_FOUND, (TRI_voc_key_t) key.c_str(), rid);
|
|
|
|
return false;
|
|
}
|
|
|
|
TRI_shaped_json_t shapedJson;
|
|
TRI_EXTRACT_SHAPED_JSON_MARKER(shapedJson, oldDocument._data);
|
|
TRI_json_t* old = TRI_JsonShapedJson(shaper, &shapedJson);
|
|
|
|
if (holder.registerJson(shaper->_memoryZone, old)) {
|
|
TRI_json_t* patchedJson = TRI_MergeJson(TRI_UNKNOWN_MEM_ZONE, old, json, nullMeansRemove);
|
|
|
|
if (holder.registerJson(TRI_UNKNOWN_MEM_ZONE, patchedJson)) {
|
|
// do not acquire an extra lock
|
|
res = trx.updateDocument(key, &document, patchedJson, policy, waitForSync, revision, &rid);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// replacing an existing document, using a lock
|
|
res = trx.updateDocument(key, &document, json, policy, waitForSync, revision, &rid);
|
|
}
|
|
|
|
const bool wasSynchronous = trx.synchronous();
|
|
|
|
res = trx.finish(res);
|
|
|
|
// .............................................................................
|
|
// outside write transaction
|
|
// .............................................................................
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
generateTransactionError(collection, res, (TRI_voc_key_t) key.c_str(), rid);
|
|
|
|
return false;
|
|
}
|
|
|
|
// generate result
|
|
if (wasSynchronous) {
|
|
generateCreated(cid, (TRI_voc_key_t) key.c_str(), document._rid);
|
|
}
|
|
else {
|
|
generateAccepted(cid, (TRI_voc_key_t) key.c_str(), document._rid);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief deletes a document
|
|
///
|
|
/// @RESTHEADER{DELETE /_api/document/`document-handle`,deletes a document}
|
|
///
|
|
/// @RESTURLPARAMETERS
|
|
///
|
|
/// @RESTURLPARAM{document-handle,string,required}
|
|
/// Deletes the document identified by `document-handle`.
|
|
///
|
|
/// @RESTQUERYPARAMETERS
|
|
///
|
|
/// @RESTQUERYPARAM{rev,string,optional}
|
|
/// You can conditionally delete a document based on a target revision id by
|
|
/// using the `rev` URL parameter.
|
|
///
|
|
/// @RESTQUERYPARAM{policy,string,optional}
|
|
/// To control the update behavior in case there is a revision mismatch, you
|
|
/// can use the `policy` parameter. This is the same as when replacing
|
|
/// documents (see replacing documents for more details).
|
|
///
|
|
/// @RESTQUERYPARAM{waitForSync,boolean,optional}
|
|
/// Wait until document has been synced to disk.
|
|
///
|
|
/// @RESTHEADERPARAMETERS
|
|
///
|
|
/// @RESTHEADERPARAM{If-Match,string,optional}
|
|
/// You can conditionally delete a document based on a target revision id by
|
|
/// using the `if-match` HTTP header.
|
|
///
|
|
/// @RESTDESCRIPTION
|
|
/// The body of the response contains a JSON object with the information about
|
|
/// the handle and the revision. The attribute `_id` contains the known
|
|
/// `document-handle` of the updated document, the attribute `_rev`
|
|
/// contains the known document revision.
|
|
///
|
|
/// If the `waitForSync` parameter is not specified or set to
|
|
/// `false`, then the collection's default `waitForSync` behavior is
|
|
/// applied. The `waitForSync` URL parameter cannot be used to disable
|
|
/// synchronisation for collections that have a default `waitForSync` value
|
|
/// of `true`.
|
|
///
|
|
/// @RESTRETURNCODES
|
|
///
|
|
/// @RESTRETURNCODE{200}
|
|
/// is returned if the document was deleted sucessfully and `waitForSync` was
|
|
/// `true`.
|
|
///
|
|
/// @RESTRETURNCODE{202}
|
|
/// is returned if the document was deleted sucessfully and `waitForSync` was
|
|
/// `false`.
|
|
///
|
|
/// @RESTRETURNCODE{404}
|
|
/// is returned if the collection or the document was not found.
|
|
/// The response body contains an error document in this case.
|
|
///
|
|
/// @RESTRETURNCODE{412}
|
|
/// is returned if a "If-Match" header or `rev` is given and the current
|
|
/// document has a different version
|
|
///
|
|
/// @EXAMPLES
|
|
///
|
|
/// Using document handle:
|
|
///
|
|
/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerDeleteDocument}
|
|
/// var cn = "products";
|
|
/// db._drop(cn);
|
|
/// db._create(cn, { waitForSync: true });
|
|
/// var document = db.products.save({"hello":"world"});
|
|
///
|
|
/// var url = "/_api/document/" + document._id;
|
|
///
|
|
/// var response = logCurlRequest('DELETE', url);
|
|
///
|
|
/// assert(response.code === 200);
|
|
///
|
|
/// logJsonResponse(response);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
///
|
|
/// Unknown document handle:
|
|
///
|
|
/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerDeleteDocumentUnknownHandle}
|
|
/// var cn = "products";
|
|
/// db._drop(cn);
|
|
/// db._create(cn, { waitForSync: true });
|
|
/// var document = db.products.save({"hello":"world"});
|
|
/// db.products.remove(document._id);
|
|
///
|
|
/// var url = "/_api/document/" + document._id;
|
|
///
|
|
/// var response = logCurlRequest('DELETE', url);
|
|
///
|
|
/// assert(response.code === 404);
|
|
///
|
|
/// logJsonResponse(response);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
///
|
|
/// Revision conflict:
|
|
///
|
|
/// @EXAMPLE_ARANGOSH_RUN{RestDocumentHandlerDeleteDocumentIfMatchOther}
|
|
/// var cn = "products";
|
|
/// db._drop(cn);
|
|
/// db._create(cn);
|
|
///
|
|
/// var document = db.products.save({"hello":"world"});
|
|
/// var document2 = db.products.save({"hello2":"world"});
|
|
/// var url = "/_api/document/" + document._id;
|
|
/// var headers = {"If-Match": "\"" + document2._rev + "\""};
|
|
///
|
|
/// var response = logCurlRequest('DELETE', url, "", headers);
|
|
///
|
|
/// assert(response.code === 412);
|
|
///
|
|
/// logJsonResponse(response);
|
|
/// @END_EXAMPLE_ARANGOSH_RUN
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool RestDocumentHandler::deleteDocument () {
|
|
vector<string> const& suffix = _request->suffix();
|
|
|
|
if (suffix.size() != 2) {
|
|
generateError(HttpResponse::BAD,
|
|
TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"expecting DELETE /_api/document/<document-handle>");
|
|
return false;
|
|
}
|
|
|
|
// split the document reference
|
|
const string& collection = suffix[0];
|
|
const string& key = suffix[1];
|
|
|
|
// extract the revision
|
|
const TRI_voc_rid_t revision = extractRevision("if-match", "rev");
|
|
|
|
// extract or choose the update policy
|
|
const TRI_doc_update_policy_e policy = extractUpdatePolicy();
|
|
const bool waitForSync = extractWaitForSync();
|
|
|
|
if (policy == TRI_DOC_UPDATE_ILLEGAL) {
|
|
generateError(HttpResponse::BAD,
|
|
TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"policy must be 'error' or 'last'");
|
|
return false;
|
|
}
|
|
|
|
SingleCollectionWriteTransaction<StandaloneTransaction<RestTransactionContext>, 1> trx(_vocbase, _resolver, collection);
|
|
|
|
// .............................................................................
|
|
// inside write transaction
|
|
// .............................................................................
|
|
|
|
int res = trx.begin();
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
generateTransactionError(collection, res);
|
|
return false;
|
|
}
|
|
|
|
const TRI_voc_cid_t cid = trx.cid();
|
|
|
|
TRI_voc_rid_t rid = 0;
|
|
res = trx.deleteDocument(key, policy, waitForSync, revision, &rid);
|
|
|
|
const bool wasSynchronous = trx.synchronous();
|
|
if (res == TRI_ERROR_NO_ERROR) {
|
|
res = trx.commit();
|
|
}
|
|
else {
|
|
trx.abort();
|
|
}
|
|
|
|
// .............................................................................
|
|
// outside write transaction
|
|
// .............................................................................
|
|
|
|
if (res != TRI_ERROR_NO_ERROR) {
|
|
generateTransactionError(collection, res, (TRI_voc_key_t) key.c_str(), rid);
|
|
return false;
|
|
}
|
|
|
|
if (wasSynchronous) {
|
|
generateDeleted(cid, (TRI_voc_key_t) key.c_str(), rid);
|
|
}
|
|
else {
|
|
generateAccepted(cid, (TRI_voc_key_t) key.c_str(), rid);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
// Local Variables:
|
|
// mode: outline-minor
|
|
// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|/// @page\\|// --SECTION--\\|/// @\\}"
|
|
// End:
|