mirror of https://gitee.com/bigwinds/arangodb
117 lines
3.8 KiB
C++
117 lines
3.8 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2019 ArangoDB 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 ArangoDB GmbH, Cologne, Germany
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///
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/// @author Markus Pfeiffer
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////////////////////////////////////////////////////////////////////////////////
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#include "UpdateReplaceModifier.h"
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#include "Aql/AqlValue.h"
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#include "Aql/Collection.h"
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#include "Aql/ModificationExecutor.h"
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#include "Aql/ModificationExecutorAccumulator.h"
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#include "Aql/ModificationExecutorHelpers.h"
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#include "Aql/OutputAqlItemRow.h"
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#include "Basics/Common.h"
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#include "Transaction/Methods.h"
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#include "VocBase/LogicalCollection.h"
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#include <velocypack/Collection.h>
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#include <velocypack/velocypack-aliases.h>
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#include "Logger/LogMacros.h"
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class CollectionNameResolver;
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using namespace arangodb;
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using namespace arangodb::aql;
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using namespace arangodb::aql::ModificationExecutorHelpers;
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ModifierOperationType UpdateReplaceModifierCompletion::accumulate(
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ModificationExecutorAccumulator& accu, InputAqlItemRow& row) {
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RegisterId const inDocReg = _infos._input1RegisterId;
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RegisterId const keyReg = _infos._input2RegisterId;
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bool const hasKeyVariable = keyReg != RegisterPlan::MaxRegisterId;
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// The document to be REPLACE/UPDATEd
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AqlValue const& inDoc = row.getValue(inDocReg);
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if (!inDoc.isObject()) {
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if (!_infos._ignoreErrors) {
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THROW_ARANGO_EXCEPTION_MESSAGE(TRI_ERROR_ARANGO_DOCUMENT_TYPE_INVALID,
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std::string("expecting 'Object', got: ") +
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inDoc.slice().typeName() + std::string(" while handling: UPDATE or REPLACE"));
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}
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return ModifierOperationType::SkipRow;
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}
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// WARNING
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//
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// We must never take _rev from the document if there is a key
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// expression.
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TRI_ASSERT(_infos._trx->resolver() != nullptr);
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CollectionNameResolver const& collectionNameResolver{*_infos._trx->resolver()};
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Result result;
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auto key = std::string{};
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auto rev = std::string{};
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AqlValue const& keyDoc = hasKeyVariable ? row.getValue(keyReg) : inDoc;
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result = getKeyAndRevision(collectionNameResolver, keyDoc, key, rev);
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if (!result.ok()) {
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// error happened extracting key, record in operations map
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if (!_infos._ignoreErrors) {
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THROW_ARANGO_EXCEPTION_MESSAGE(result.errorNumber(), result.errorMessage());
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}
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return ModifierOperationType::SkipRow;
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}
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if (writeRequired(_infos, inDoc.slice(), key)) {
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if (hasKeyVariable) {
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VPackBuilder keyDocBuilder;
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if (_infos._options.ignoreRevs) {
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rev.clear();
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}
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buildKeyAndRevDocument(keyDocBuilder, key, rev);
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// This deletes _rev if rev is empty or ignoreRevs is set in
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// options.
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auto merger =
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VPackCollection::merge(inDoc.slice(), keyDocBuilder.slice(), false, true);
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accu.add(merger.slice());
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} else {
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accu.add(inDoc.slice());
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}
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return ModifierOperationType::ReturnIfAvailable;
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} else {
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return ModifierOperationType::CopyRow;
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}
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}
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OperationResult UpdateReplaceModifierCompletion::transact(VPackSlice const& data) {
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if (_infos._isReplace) {
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return _infos._trx->replace(_infos._aqlCollection->name(), data, _infos._options);
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} else {
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return _infos._trx->update(_infos._aqlCollection->name(), data, _infos._options);
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}
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}
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