我知道這個問題已經被問到,但我仍然無法找到我在做什麼錯誤。SQLSTATE [23000]:完整性約束違規:1452無法添加或更新子行:外鍵約束失敗 - Laravel
我正在使用框架Laravel。
我有2個表格(用戶和位置)。當我想創建一個用戶,我得到錯誤信息:
SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (
festival_aid
.users
, CONSTRAINTfk_users_locations1
FOREIGN KEY (location_id
) REFERENCESlocations
(location_id
) ON DELETE CASCADE ON UPDATE NO ACTION) (SQL: insert intousers
(user_id
,user_email
,location_id
) values (?, ?, ?)) (Bindings: array (0 => '1', 1 => '[email protected]', 2 => '1',))
表用戶
CREATE TABLE IF NOT EXISTS `festival_aid`.`users` (
`user_id` BIGINT NOT NULL AUTO_INCREMENT,
`user_email` VARCHAR(45) NOT NULL,
`user_created` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
`user_modified` TIMESTAMP NULL,
`user_deleted` TIMESTAMP NULL,
`user_lastlogin` TIMESTAMP NULL,
`user_locked` TIMESTAMP NULL,
`location_id` BIGINT NOT NULL,
PRIMARY KEY (`user_id`),
UNIQUE INDEX `user_email_UNIQUE` (`user_email` ASC),
CONSTRAINT `fk_users_locations1`
FOREIGN KEY (`location_id`)
REFERENCES `festival_aid`.`locations` (`location_id`)
ON DELETE CASCADE
ON UPDATE NO ACTION,
ENGINE = InnoDB;
表位置
DROP TABLE IF EXISTS `festival_aid`.`locations` ;
CREATE TABLE IF NOT EXISTS `festival_aid`.`locations` (
`location_id` BIGINT NOT NULL AUTO_INCREMENT,
`location_latitude` FLOAT NOT NULL,
`location_longitude` FLOAT NOT NULL,
`location_desc` VARCHAR(255) NULL,
`location_type` VARCHAR(45) NULL,
PRIMARY KEY (`location_id`))
ENGINE = InnoDB;
遷移用戶
public function up()
{
Schema::table('users', function(Blueprint $table)
{
$table->increments('user_id');
$table->string('user_email');
$table->timestamp('user_created');
$table->timestamp('user_modified');
$table->timestamp('user_deleted');
$table->timestamp('user_lastlogin');
$table->timestamp('user_locked');
$table->foreign('location_id')
->references('id')->on('locations');
//->onDelete('cascade');
});
}
遷移地點
public function up()
{
Schema::table('locations', function(Blueprint $table)
{
$table->primary('location_id');
$table->float('location_latitude');
$table->float('location_longitude');
$table->string('location_desc');
$table->string('location_type');
});
}
型號用戶
public function location()
{
return $this->belongsTo('Location');
}
模型位置
public function user()
{
return $this->hasOne('User');
}
控制器
public function store()
{
$input = Input::all();
$rules = array('user_email' => 'required|unique:users|email');
$v = Validator::make($input, $rules);
if($v->passes())
{
$user = new User();
$location = new Location();
$user->user_email = $input['user_email'];
//$user->location_id = $input['location_id'];
$location->location_latitude = $input['location_latitude'];
$location->location_longitude = $input['location_longitude'];
$user->save();
$location->save();
}
我似乎無法找到我在做什麼錯。顯然外鍵有問題。
這很奇怪,但在我的情況下,我在插入之前在約束表中有行,但它仍然會拋出此錯誤。 –