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39 lines
1.1 KiB
39 lines
1.1 KiB
'use strict';
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const OperationBase = require('./operation').OperationBase;
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const removeDocuments = require('./common_functions').removeDocuments;
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const Aspect = require('./operation').Aspect;
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const defineAspects = require('./operation').defineAspects;
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class DeleteOneOperation extends OperationBase {
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constructor(collection, filter, options) {
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super(options);
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this.collection = collection;
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this.filter = filter;
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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 options = this.options;
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options.single = true;
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removeDocuments(coll, filter, options, (err, r) => {
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if (callback == null) return;
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if (err && callback) 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.deletedCount = 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(DeleteOneOperation, [Aspect.EXPLAINABLE]);
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module.exports = DeleteOneOperation;
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