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1 | module.exports = function (sequelize, DataTypes) { |
2 | const Application = sequelize.define('Application', | |
3 | { | |
b769007f | 4 | migrationVersion: { |
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5 | type: DataTypes.INTEGER, |
6 | defaultValue: 0 | |
7 | } | |
8 | }, | |
9 | { | |
10 | classMethods: { | |
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11 | loadMigrationVersion, |
12 | updateMigrationVersion | |
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13 | } |
14 | } | |
15 | ) | |
16 | ||
17 | return Application | |
18 | } | |
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19 | |
20 | // --------------------------------------------------------------------------- | |
21 | ||
b769007f | 22 | function loadMigrationVersion (callback) { |
feb4bdfd | 23 | const query = { |
b769007f | 24 | attributes: [ 'migrationVersion' ] |
00d6b0dd | 25 | } |
00d6b0dd | 26 | |
feb4bdfd | 27 | return this.findOne(query).asCallback(function (err, data) { |
b769007f | 28 | const version = data ? data.migrationVersion : 0 |
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29 | |
30 | return callback(err, version) | |
31 | }) | |
32 | } | |
33 | ||
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34 | function updateMigrationVersion (newVersion, transaction, callback) { |
35 | const options = { | |
36 | where: {} | |
37 | } | |
38 | ||
39 | if (!callback) { | |
40 | transaction = callback | |
41 | } else { | |
42 | options.transaction = transaction | |
43 | } | |
44 | ||
45 | return this.update({ migrationVersion: newVersion }, options).asCallback(callback) | |
00d6b0dd | 46 | } |