belongsTo(Plant::class); } public function shift(): BelongsTo { return $this->belongsTo(Shift::class); } public function line(): BelongsTo { return $this->belongsTo(Line::class); } public function linestop(): BelongsTo { return $this->belongsTo(LineStop::class); } // //..this is my code below // public function lineStopRelation() // { // return $this->belongsTo(LineStop::class, 'linestop_id'); // } public function prunable(): Builder { return static::where('created_at', '<=', now()->subMonthsNoOverflow(6)); } }