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arangodb/js/client/modules/simple-query.js

273 lines
9.3 KiB
JavaScript

////////////////////////////////////////////////////////////////////////////////
/// @brief Avocado Simple Query Language
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2012 triagens GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is triAGENS GmbH, Cologne, Germany
///
/// @author Dr. Frank Celler
/// @author Copyright 2012, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////
var internal = require("internal");
var SQ = require("simple-query-basics");
// -----------------------------------------------------------------------------
// --SECTION-- SIMPLE QUERY ALL
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
// --SECTION-- private functions
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup SimpleQuery
/// @{
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/// @brief executes an all query
////////////////////////////////////////////////////////////////////////////////
SQ.SimpleQueryAll.prototype.execute = function () {
var documents;
if (this._execution == null) {
var data = {
collection : this._collection._id
}
if (this._limit != null) {
data.limit = this._limit;
}
if (this._skip != null) {
data.skip = this._skip;
}
var requestResult = this._collection._database._connection.PUT("/_api/simple/all", JSON.stringify(data));
TRI_CheckRequestResult(requestResult);
this._execution = new AvocadoQueryCursor(this._collection._database, requestResult);
if (requestResult.hasOwnProperty("count")) {
this._countQuery = requestResult.count;
}
}
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
// -----------------------------------------------------------------------------
// --SECTION-- QUERY BY EXAMPLE
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
// --SECTION-- private functions
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup SimpleQuery
/// @{
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/// @brief executes a query-by-example
////////////////////////////////////////////////////////////////////////////////
SQ.SimpleQueryByExample.prototype.execute = function () {
var documents;
if (this._execution == null) {
if (this._skip == null || this._skip <= 0) {
this._skip = 0;
}
var parameters = [ ];
// the actual example is passed in the first argument
for (var i in this._example[0]) {
if (this._example[0].hasOwnProperty(i)) {
// attribute name
parameters.push(i);
// attribute value
parameters.push(this._example[0][i]);
}
}
var documents = this._collection.BY_EXAMPLE.apply(this._collection, parameters);
this._execution = new SQ.GeneralArrayCursor(documents, this._skip, this._limit);
this._countQuery = documents.length;
this._countTotal = documents.length;
}
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
// -----------------------------------------------------------------------------
// --SECTION-- SIMPLE QUERY NEAR
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
// --SECTION-- private functions
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup SimpleQuery
/// @{
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/// @brief executes an all query
////////////////////////////////////////////////////////////////////////////////
SQ.SimpleQueryNear.prototype.execute = function () {
var documents;
if (this._execution == null) {
var data = {
collection : this._collection._id,
latitude : this._latitude,
longitude : this._longitude
}
if (this._limit != null) {
data.limit = this._limit;
}
if (this._skip != null) {
data.skip = this._skip;
}
if (this._index != null) {
data.geo = this._index;
}
if (this._distance != null) {
data.distance = this._distance;
}
var requestResult = this._collection._database._connection.PUT("/_api/simple/near", JSON.stringify(data));
TRI_CheckRequestResult(requestResult);
this._execution = new AvocadoQueryCursor(this._collection._database, requestResult);
if (requestResult.hasOwnProperty("count")) {
this._countQuery = requestResult.count;
}
}
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
// -----------------------------------------------------------------------------
// --SECTION-- SIMPLE QUERY WITHIN
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
// --SECTION-- private functions
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup SimpleQuery
/// @{
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/// @brief executes an all query
////////////////////////////////////////////////////////////////////////////////
SQ.SimpleQueryWithin.prototype.execute = function () {
var documents;
if (this._execution == null) {
var data = {
collection : this._collection._id,
latitude : this._latitude,
longitude : this._longitude,
radius : this._radius
}
if (this._limit != null) {
data.limit = this._limit;
}
if (this._skip != null) {
data.skip = this._skip;
}
if (this._index != null) {
data.geo = this._index;
}
if (this._distance != null) {
data.distance = this._distance;
}
var requestResult = this._collection._database._connection.PUT("/_api/simple/within", JSON.stringify(data));
TRI_CheckRequestResult(requestResult);
this._execution = new AvocadoQueryCursor(this._collection._database, requestResult);
if (requestResult.hasOwnProperty("count")) {
this._countQuery = requestResult.count;
}
}
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
// -----------------------------------------------------------------------------
// --SECTION-- MODULE EXPORTS
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup SimpleQuery
/// @{
////////////////////////////////////////////////////////////////////////////////
exports.SimpleQueryAll = SQ.SimpleQueryAll;
exports.SimpleQueryByExample = SQ.SimpleQueryByExample;
exports.SimpleQueryGeo = SQ.SimpleQueryGeo;
exports.SimpleQueryNear = SQ.SimpleQueryNear;
exports.SimpleQueryWithin = SQ.SimpleQueryWithin;
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
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