'array']; protected $fillable = [ 'travel_program_id', 'travel_class_id', 'draft_id', 'weekdays', ]; public function travel_program() { return $this->belongsTo('App\Models\TravelProgram', 'travel_program_id'); } public function travel_class() { return $this->belongsTo('App\Models\TravelClass', 'travel_class_id'); } public function draft() { return $this->belongsTo(Draft::class, 'draft_id', 'id'); } public function getWeekdaysOrAll() { return ($this->weekdays !== NULL && $this->weekdays[0] !== null) ? $this->weekdays : [0 => "0", 1 => "1", 2 => "2", 3 => "3", 4 => "4", 5 => "5", 6 => "6"]; } }