node.js - Sequelize Migration Error -

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i'm using sequelize 2.0.0-rc3 , there's error i'm encountering; seems i'm writing migration correctly i'm getting error trying run it. i'm using postgresql on backend. seems working fine; new, isolated issue. document table , id column exists (created in previous migration, discovered it's not auto-incrementing id's; tried creating migration add auto-incrementing).

var p = require('bluebird');  module.exports = {     up: function (migration, datatypes, done) {         var promises = [];         promises.push(             migration.changecolumn(                 'document',                 'id',                 {                     type: datatypes.integer,                     primarykey: true,                     autoincrement: true,                     allownull: false                 }             ));         p.all(promises).then(done.bind(null, null)).catch(function (err) {             console.error('migration failed: ', err);             done(err);         });      },      down: function (migration, datatypes, done) {         done();     } };

possibly unhandled typeerror: cannot call method 'push' of undefined @ object.module.exports.querygenerator.datatypemapping (/users/csimpson/code/temp-cause-server/node_modules/sequelize/lib/dialects/postgres/query-generator.js:848:32) @ object.module.exports.querygenerator.pgdatatypemapping (/users/csimpson/code/temp-cause-server/node_modules/sequelize/lib/dialects/postgres/query-generator.js:843:19) @ object.module.exports.querygenerator.changecolumnquery (/users/csimpson/code/temp-cause-server/node_modules/sequelize/lib/dialects/postgres/query-generator.js:250:31) @ module.exports.queryinterface.changecolumn (/users/csimpson/code/temp-cause-server/node_modules/sequelize/lib/query-interface.js:345:37) @ module.exports.migration.(anonymous function) [as changecolumn] (/users/csimpson/code/temp-cause-server/node_modules/sequelize/lib/migration.js:26:50) @ /users/csimpson/code/temp-cause-server/database/migrations/20141216000001-alter-id-increment.js:8:41 @ trycatch1 (/users/csimpson/code/temp-cause-server/node_modules/sequelize/node_modules/bluebird/js/main/util.js:45:21) @ promise$_callhandler [as _callhandler] (/users/csimpson/code/temp-cause-server/node_modules/sequelize/node_modules/bluebird/js/main/promise.js:660:13) @ promise$_settlepromisefromhandler [as _settlepromisefromhandler] (/users/csimpson/code/temp-cause-server/node_modules/sequelize/node_modules/bluebird/js/main/promise.js:675:18) @ promise$_settlepromiseat (/users/csimpson/code/temp-cause-server/node_modules/sequelize/node_modules/bluebird/js/main/promise.js:845:14)

i ran possibly unhandled typeerror: cannot call method 'push' of undefined error well. trying add id field existing table, 1 had created in previous migration.

my fix had 2 parts:

1) add unique: true id column.

2) undo previous migration (where created table want add id column to), , run both migrations @ once.

until did both of these, migration attempts failed.


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