86 lines
3.7 KiB
JavaScript
86 lines
3.7 KiB
JavaScript
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"use strict";
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const _ = require("lodash");
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const HasOne = require("./has-one");
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const HasMany = require("./has-many");
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const BelongsToMany = require("./belongs-to-many");
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const BelongsTo = require("./belongs-to");
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function isModel(model, sequelize) {
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return model && model.prototype && model.prototype instanceof sequelize.Sequelize.Model;
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}
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const Mixin = {
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hasMany(target, options = {}) {
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if (!isModel(target, this.sequelize)) {
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throw new Error(`${this.name}.hasMany called with something that's not a subclass of Sequelize.Model`);
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}
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const source = this;
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options.hooks = options.hooks === void 0 ? false : Boolean(options.hooks);
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options.useHooks = options.hooks;
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Object.assign(options, _.omit(source.options, ["hooks"]));
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if (options.useHooks) {
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this.runHooks("beforeAssociate", { source, target, type: HasMany }, options);
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}
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const association = new HasMany(source, target, options);
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source.associations[association.associationAccessor] = association;
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association._injectAttributes();
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association.mixin(source.prototype);
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if (options.useHooks) {
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this.runHooks("afterAssociate", { source, target, type: HasMany, association }, options);
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}
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return association;
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},
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belongsToMany(target, options = {}) {
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if (!isModel(target, this.sequelize)) {
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throw new Error(`${this.name}.belongsToMany called with something that's not a subclass of Sequelize.Model`);
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}
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const source = this;
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options.hooks = options.hooks === void 0 ? false : Boolean(options.hooks);
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options.useHooks = options.hooks;
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options.timestamps = options.timestamps === void 0 ? this.sequelize.options.timestamps : options.timestamps;
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Object.assign(options, _.omit(source.options, ["hooks", "timestamps", "scopes", "defaultScope"]));
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if (options.useHooks) {
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this.runHooks("beforeAssociate", { source, target, type: BelongsToMany }, options);
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}
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const association = new BelongsToMany(source, target, options);
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source.associations[association.associationAccessor] = association;
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association._injectAttributes();
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association.mixin(source.prototype);
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if (options.useHooks) {
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this.runHooks("afterAssociate", { source, target, type: BelongsToMany, association }, options);
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}
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return association;
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},
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getAssociations(target) {
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return Object.values(this.associations).filter((association) => association.target.name === target.name);
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},
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getAssociationForAlias(target, alias) {
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return this.getAssociations(target).find((association) => association.verifyAssociationAlias(alias)) || null;
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}
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};
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function singleLinked(Type) {
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return function(target, options = {}) {
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const source = this;
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if (!isModel(target, source.sequelize)) {
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throw new Error(`${source.name}.${_.lowerFirst(Type.name)} called with something that's not a subclass of Sequelize.Model`);
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}
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options.hooks = options.hooks === void 0 ? false : Boolean(options.hooks);
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options.useHooks = options.hooks;
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if (options.useHooks) {
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source.runHooks("beforeAssociate", { source, target, type: Type }, options);
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}
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const association = new Type(source, target, Object.assign(options, source.options));
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source.associations[association.associationAccessor] = association;
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association._injectAttributes();
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association.mixin(source.prototype);
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if (options.useHooks) {
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source.runHooks("afterAssociate", { source, target, type: Type, association }, options);
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}
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return association;
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};
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}
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Mixin.hasOne = singleLinked(HasOne);
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Mixin.belongsTo = singleLinked(BelongsTo);
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module.exports = Mixin;
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module.exports.Mixin = Mixin;
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module.exports.default = Mixin;
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//# sourceMappingURL=mixin.js.map
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