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45 lines
1.4 KiB
JavaScript
45 lines
1.4 KiB
JavaScript
'use strict';
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var makeKnex = require('../../util/make-knex');
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var Promise = require('../../promise');
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var helpers = require('../../helpers');
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var inherits = require('inherits');
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var EventEmitter = require('events').EventEmitter;
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function Transaction_WebSQL(client, container) {
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helpers.warn('WebSQL transactions will run queries, but do not commit or rollback');
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var trx = this;
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this._promise = Promise['try'](function () {
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container(makeKnex(makeClient(trx, client)));
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});
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}
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inherits(Transaction_WebSQL, EventEmitter);
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function makeClient(trx, client) {
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var trxClient = Object.create(client.constructor.prototype);
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trxClient.config = client.config;
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trxClient.connectionSettings = client.connectionSettings;
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trxClient.transacting = true;
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trxClient.on('query', function (arg) {
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trx.emit('query', arg);
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client.emit('query', arg);
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});
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trxClient.commit = function () {};
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trxClient.rollback = function () {};
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return trxClient;
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}
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var promiseInterface = ['then', 'bind', 'catch', 'finally', 'asCallback', 'spread', 'map', 'reduce', 'tap', 'thenReturn', 'return', 'yield', 'ensure', 'nodeify', 'exec'];
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// Creates a method which "coerces" to a promise, by calling a
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// "then" method on the current `Target`
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promiseInterface.forEach(function (method) {
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Transaction_WebSQL.prototype[method] = function () {
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return this._promise = this._promise[method].apply(this._promise, arguments);
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};
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});
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module.exports = Transaction_WebSQL; |