'datetime', 'updated_at' => 'datetime', ]; public function detail_penduduk() { return $this->hasMany(DetailPenduduk::class, 'id_penduduk', 'id_penduduk'); } public function training() { return $this->hasOne(Training::class, 'id_penduduk', 'id_penduduk'); } public function testing() { return $this->hasOne(Testing::class, 'id_penduduk', 'id_penduduk'); } }