'decimal:4', ]; public function lineTemplate() { return $this->belongsTo(LineTemplate::class, 'ie_line_template_id'); } public function maintenanceEquipment() { return $this->belongsTo(Equipment::class, 'maintenance_equipment_id'); } public function productionEvents() { return $this->hasMany(ProductionEvent::class, 'work_center_id'); } public function downtimeEvents() { return $this->hasMany(DowntimeEvent::class, 'work_center_id'); } public function oeeSnapshots() { return $this->hasMany(OeeSnapshot::class, 'work_center_id'); } }