46 lines
1.2 KiB
JavaScript
46 lines
1.2 KiB
JavaScript
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'use strict';
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var assert = require('assert');
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var debug = require('debug')('loopback:kvao:delete');
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var utils = require('../utils');
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/**
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* Delete the key-value pair associated to the given key.
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*
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* @param {String} key Key to use when searching the database.
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* @options {Object} options
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* @callback {Function} callback
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* @param {Error} err Error object.
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* @param {*} result Value associated with the given key.
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* @promise
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*
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* @header KVAO.prototype.delete(key[, options], cb)
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*/
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module.exports = function keyValueDelete(key, options, callback) {
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if (callback == undefined && typeof options === 'function') {
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callback = options;
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options = {};
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} else if (!options) {
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options = {};
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}
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assert(typeof key === 'string' && key, 'key must be a non-empty string');
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callback = callback || utils.createPromiseCallback();
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var connector = this.getConnector();
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if (typeof connector.delete === 'function') {
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connector.delete(this.modelName, key, options, callback);
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} else {
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var errMsg = 'Connector does not support key-value pair deletion';
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debug(errMsg);
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process.nextTick(function() {
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var err = new Error(errMsg);
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err.statusCode = 501;
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callback(err);
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});
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}
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return callback.promise;
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};
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