Function hasMany

lib/associations/mixin.js:16–45

(target, options = {})

const Mixin = {
  hasMany(target, options = {}) {
    if (!isModel(target, this.sequelize)) {
      throw new Error(`${this.name}.hasMany called with something that's not a subclass of Sequelize.Model`);
    }

    const source = this;

    // Since this is a mixin, we'll need a unique letiable name for hooks (since Model will override our hooks option)
    options.hooks = options.hooks === undefined ? false : Boolean(options.hooks);
    options.useHooks = options.hooks;

    Object.assign(options, _.omit(source.options, ['hooks']));

    if (options.useHooks) {
      this.runHooks('beforeAssociate', { source, target, type: HasMany }, options);
    }

    // the id is in the foreign table or in a connecting table
    const association = new HasMany(source, target, options);
    source.associations[association.associationAccessor] = association;

    association._injectAttributes();
    association.mixin(source.prototype);

    if (options.useHooks) {
      this.runHooks('afterAssociate', { source, target, type: HasMany, association }, options);
    }

    return association;
  },

  belongsToMany(target, options = {}) {
    if (!isModel(target, this.sequelize)) {