ActiveRecord\HasAndBelongsToMany::__construct PHP Method

    public function __construct($options = array())
    {
        /* options =>
         *   join_table - name of the join table if not in lexical order
         *   foreign_key -
         *   association_foreign_key - default is {assoc_class}_id
         *   uniq - if true duplicate assoc objects will be ignored
         *   validate
         */
    }