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56 lines
1.9 KiB
56 lines
1.9 KiB
'use strict';
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const OperationBase = require('./operation').OperationBase;
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const updateDocuments = require('./common_functions').updateDocuments;
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const hasAtomicOperators = require('../utils').hasAtomicOperators;
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const Aspect = require('./operation').Aspect;
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const defineAspects = require('./operation').defineAspects;
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class UpdateOneOperation extends OperationBase {
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constructor(collection, filter, update, options) {
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super(options);
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if (!hasAtomicOperators(update)) {
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throw new TypeError('Update document requires atomic operators');
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}
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this.collection = collection;
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this.filter = filter;
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this.update = update;
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}
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execute(callback) {
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const coll = this.collection;
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const filter = this.filter;
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const update = this.update;
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const options = this.options;
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// Set single document update
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options.multi = false;
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// Execute update
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updateDocuments(coll, filter, update, options, (err, r) => {
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if (callback == null) return;
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if (err) return callback(err);
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if (r == null) return callback(null, { result: { ok: 1 } });
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// If an explain operation was executed, don't process the server results
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if (this.explain) return callback(undefined, r.result);
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r.modifiedCount = r.result.nModified != null ? r.result.nModified : r.result.n;
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r.upsertedId =
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Array.isArray(r.result.upserted) && r.result.upserted.length > 0
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? r.result.upserted[0] // FIXME(major): should be `r.result.upserted[0]._id`
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: null;
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r.upsertedCount =
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Array.isArray(r.result.upserted) && r.result.upserted.length ? r.result.upserted.length : 0;
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r.matchedCount =
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Array.isArray(r.result.upserted) && r.result.upserted.length > 0 ? 0 : r.result.n;
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callback(null, r);
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});
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}
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}
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defineAspects(UpdateOneOperation, [Aspect.EXPLAINABLE]);
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module.exports = UpdateOneOperation;
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