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42 lines
1.0 KiB
JavaScript
42 lines
1.0 KiB
JavaScript
const { DataTypes, Model } = require('sequelize')
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module.exports = (sequelize) => {
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class BookSeries extends Model {
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static removeByIds(seriesId = null, bookId = null) {
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const where = {}
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if (seriesId) where.seriesId = seriesId
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if (bookId) where.bookId = bookId
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return this.destroy({
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where
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})
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}
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}
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BookSeries.init({
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id: {
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type: DataTypes.UUID,
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defaultValue: DataTypes.UUIDV4,
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primaryKey: true
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},
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sequence: DataTypes.STRING
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}, {
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sequelize,
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modelName: 'bookSeries',
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timestamps: true,
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updatedAt: false
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})
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// Super Many-to-Many
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// ref: https://sequelize.org/docs/v6/advanced-association-concepts/advanced-many-to-many/#the-best-of-both-worlds-the-super-many-to-many-relationship
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const { book, series } = sequelize.models
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book.belongsToMany(series, { through: BookSeries })
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series.belongsToMany(book, { through: BookSeries })
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book.hasMany(BookSeries)
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BookSeries.belongsTo(book)
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series.hasMany(BookSeries)
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BookSeries.belongsTo(series)
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return BookSeries
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} |