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more sequelize

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Ciro Santilli
2021-10-31 12:27:29 +00:00
parent 6f496cc0d3
commit 46ab416889
2 changed files with 17 additions and 3 deletions
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1
rootfs_overlay/lkmc/nodejs/sequelize/association_many_to_many.js
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@@ -62,6 +62,7 @@ const user0Likes = await user0.getPosts({order: [['body', 'ASC']]})
assert(user0Likes[0].body === 'post0');
assert(user0Likes[1].body === 'post1');
assert(user0Likes.length === 2);
assert.strictEqual(await user0.countPosts(), 2)
const user1Likes = await user1.getPosts({order: [['body', 'ASC']]})
assert(user1Likes.length === 0);

19
rootfs_overlay/lkmc/nodejs/sequelize/index.js
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@@ -13,7 +13,7 @@
const assert = require('assert');
const path = require('path');
const { Sequelize, DataTypes } = require('sequelize');
const { Sequelize, DataTypes, Op } = require('sequelize');
// To use the URI syntax, we need an explcit username and password.
// But the second constructor works with peer authentication.
@@ -96,17 +96,30 @@ await IntegerNames.create({value: 5, name: 'five'});
// 3 | 5 | five | 2021-03-19 19:12:08.437+00 | 2021-03-19 19:12:08.437+00
// (3 rows)
const integerNames = await IntegerNames.findAll({
let integerNames = await IntegerNames.findAll({
where: {
value: 2
}
});
assert.strictEqual(integerNames[0].name, 'two');
assert.strictEqual(integerNames.length, 1);
// SELECT and destroy: https://stackoverflow.com/questions/8402597/sequelize-js-delete-query
await IntegerNames.destroy({
where: {
value: { [Op.gt]: 2 },
},
limit: 1,
});
integerNames = await IntegerNames.findAll({order: [['value', 'ASC']]})
assert.strictEqual(integerNames[0].name, 'two');
assert.strictEqual(integerNames[1].name, 'five');
assert.strictEqual(integerNames.length, 2);
// Truncate all tables.
// https://stackoverflow.com/questions/47816162/wipe-all-tables-in-a-schema-sequelize-nodejs/66985334#66985334
await sequelize.truncate();
assert.strictEqual((await IntegerNames.findAll()).length, 0);
assert.strictEqual(await IntegerNames.count(), 0);
// Datetime. Automatically converts to/from date objects.
const Dates = sequelize.define('Dates', {