Method remove

lib/associations/has-many.js:435–452

* Un-associate one or several target rows. * * @param {Model} sourceInstance instance to un associate instances with * @param {Model|Model[]|string|string[]|number|number[]} [targetInstances] Can be an Instance or its primary key, or a mixed array of instances and primary keys * @param {

(sourceInstance, targetInstances, options = {})

   * @returns {Promise}
   */
  async remove(sourceInstance, targetInstances, options = {}) {
    const update = {
      [this.foreignKey]: null
    };

    targetInstances = this.toInstanceArray(targetInstances);

    const where = {
      [this.foreignKey]: sourceInstance.get(this.sourceKey),
      [this.target.primaryKeyAttribute]: targetInstances.map(targetInstance =>
        targetInstance.get(this.target.primaryKeyAttribute)
      )
    };

    await this.target.unscoped().update(update, { ...options, where });

    return this;
  }

  /**
   * Create a new instance of the associated model and associate it with this.