Method count

lib/associations/has-many.js:253–271

* Count everything currently associated with this, using an optional where clause. * * @param {Model} instance the source instance * @param {object} [options] find & count options * @param {object} [options.where] An optional where clause to limit the associated mo

(instance, options)

   * @returns {Promise<number>}
   */
  async count(instance, options) {
    options = Utils.cloneDeep(options);

    options.attributes = [
      [
        this.sequelize.fn(
          'COUNT',
          this.sequelize.col(`${this.target.name}.${this.target.primaryKeyField}`)
        ),
        'count'
      ]
    ];
    options.raw = true;
    options.plain = true;

    const result = await this.get(instance, options);

    return parseInt(result.count, 10);
  }

  /**
   * Check if one or more rows are associated with `this`.