Function addHook

lib/hooks.js:143–160

* Add a hook to the model * * @param {string} hookType hook name @see {@link hookTypes} * @param {string|Function} [name] Provide a name for the hook function. It can be used to remove the hook later or to order hooks based on some sort of priority system in the future. * @param

(hookType, name, fn)

   * @memberof Sequelize.Model
   */
  addHook(hookType, name, fn) {
    if (typeof name === 'function') {
      fn = name;
      name = null;
    }

    debug(`adding hook ${hookType}`);
    // check for proxies, add them too
    hookType = getProxiedHooks(hookType);

    hookType.forEach(type => {
      const hooks = getHooks(this, type);
      hooks.push(name ? { name, fn } : fn);
      this.options.hooks[type] = hooks;
    });

    return this;
  },

  /**
   * Remove hook from the model