3 var BPromise = require('bluebird');
4 var util = require('util');
6 var logger = require('../config/logger')('migration');
8 var Sequence = function () {};
10 Sequence.prototype.enqueue = function (fn) {
11 this.tail = this.tail ? this.tail.finally(fn) : fn();
14 var Migration = function (queryInterface) {
15 this.queryInterface = queryInterface;
16 this.sequence = new Sequence();
19 Migration.prototype.changeColumn = function (table, column, type) {
21 this.sequence.enqueue(function () {
22 return _this.queryInterface
23 .changeColumn(table, column, type)
25 logger.info('Changed column %s in table %s', column, table);
27 .catch(function (err) {
28 logger.info(JSON.stringify(err));
33 Migration.prototype.addColumn = function (table, column, type) {
35 this.sequence.enqueue(function () {
36 return _this.queryInterface
37 .addColumn(table, column, type)
39 logger.info('Added column %s to %s', column, table);
41 .catch(function (err) {
42 logger.info(JSON.stringify(err));
47 Migration.prototype.dropTable = function (table) {
49 this.sequence.enqueue(function () {
50 return _this.queryInterface
55 logger.info('table dropped %s', table);
57 .catch(function (err) {
58 logger.info(JSON.stringify(err));
63 Migration.prototype.addIndex = function (table, column, indexName) {
65 this.sequence.enqueue(function () {
66 return _this.queryInterface
67 .addIndex(table, column, {
71 logger.info('addIndex %s %s %s', table, column.join(','), indexName);
73 .catch(function (err) {
74 logger.info(JSON.stringify(err));
79 Migration.prototype.removeIndex = function (table, indexName) {
81 this.sequence.enqueue(function () {
82 return _this.queryInterface
83 .removeIndex(table, indexName)
85 logger.info('removeIndex %s %s', table, indexName);
87 .catch(function (err) {
88 logger.info(JSON.stringify(err));
93 Migration.prototype.query = function (sql) {
95 this.sequence.enqueue(function () {
96 return _this.queryInterface.sequelize
99 logger.info('query %s', sql);
101 .catch(function (err) {
102 logger.info(JSON.stringify(err));
107 Migration.prototype.removeColumn = function (table, column) {
109 this.sequence.enqueue(function () {
110 return _this.queryInterface
111 .removeColumn(table, column)
113 logger.info('Removed column %s from %s', column, table);
115 .catch(function (err) {
126 Migration.prototype.renameColumn = function (table, oldColumn, newColumn) {
128 this.sequence.enqueue(function () {
129 return _this.queryInterface
130 .renameColumn(table, oldColumn, newColumn)
132 logger.info('Renamed column from %s to %s on %s', oldColumn, newColumn, table);
134 .catch(function (err) {
145 Migration.prototype.final = function (resolve) {
146 this.sequence.enqueue(function () {
152 up: function (queryInterface, Sequelize) {
153 return new BPromise(function (resolve) {
154 var migration = new Migration(queryInterface);
157 migration.final(resolve);
162 down: function (queryInterface, Sequelize) {
163 // var migration = new Migration(queryInterface);