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1 | import * as Sequelize from 'sequelize' | |
2 | ||
3 | import { addMethodsToModel } from '../utils' | |
4 | import { | |
5 | ApplicationAttributes, | |
6 | ApplicationInstance, | |
7 | ||
8 | ApplicationMethods | |
9 | } from './application-interface' | |
10 | ||
11 | let Application: Sequelize.Model<ApplicationInstance, ApplicationAttributes> | |
12 | let loadMigrationVersion: ApplicationMethods.LoadMigrationVersion | |
13 | let updateMigrationVersion: ApplicationMethods.UpdateMigrationVersion | |
14 | ||
15 | export default function defineApplication (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.DataTypes) { | |
16 | Application = sequelize.define<ApplicationInstance, ApplicationAttributes>('Application', | |
17 | { | |
18 | migrationVersion: { | |
19 | type: DataTypes.INTEGER, | |
20 | defaultValue: 0, | |
21 | allowNull: false, | |
22 | validate: { | |
23 | isInt: true | |
24 | } | |
25 | } | |
26 | } | |
27 | ) | |
28 | ||
29 | const classMethods = [ loadMigrationVersion, updateMigrationVersion ] | |
30 | addMethodsToModel(Application, classMethods) | |
31 | ||
32 | return Application | |
33 | } | |
34 | ||
35 | // --------------------------------------------------------------------------- | |
36 | ||
37 | loadMigrationVersion = function () { | |
38 | const query = { | |
39 | attributes: [ 'migrationVersion' ] | |
40 | } | |
41 | ||
42 | return Application.findOne(query).then(data => data ? data.migrationVersion : null) | |
43 | } | |
44 | ||
45 | updateMigrationVersion = function (newVersion: number, transaction: Sequelize.Transaction) { | |
46 | const options: Sequelize.UpdateOptions = { | |
47 | where: {}, | |
48 | transaction: transaction | |
49 | } | |
50 | ||
51 | return Application.update({ migrationVersion: newVersion }, options) | |
52 | } |