laravel5.3-數據庫操作下的局部or條件與全局or條件（orWhere的局部與全局）
當用戶名不為空時
SELECT * FROM `ACCOUNT_RECHARGE` LEFT JOIN `ORDER` ON `ACCOUNT_RECHARGE`.`OrderNo` = `ORDER`.`OrderNo` LEFT JOIN `USER_ACCOUNT` ON `ORDER`.`UserId` = `USER_ACCOUNT`.`UserId` WHERE (`USER_ACCOUNT`.`UserName` LIKE ‘%18%‘ OR (`USER_ACCOUNT`.`MobileNo` LIKE ‘%18%‘) OR (`USER_ACCOUNT`.`EMail` LIKE ‘%18%‘))
上述SQL語句在laravel5.3中的一種寫法：
$model = DB::connection(‘Order_User‘)->table(‘ACCOUNT_RECHARGE‘)
->leftJoin(‘ORDER‘, ‘ACCOUNT_RECHARGE.OrderNo‘, ‘=‘, ‘ORDER.OrderNo‘)
->leftJoin(‘USER_ACCOUNT‘, ‘ORDER.UserId‘, ‘=‘, ‘USER_ACCOUNT.UserId‘)
->select(‘ACCOUNT_RECHARGE.*‘, ‘USER_ACCOUNT.UserName‘, ‘USER_ACCOUNT.MobileNo‘, ‘USER_ACCOUNT.EMail‘)
->orderBy(‘ACCOUNT_RECHARGE.OrderTime‘, ‘DESC‘);
if (!empty($username)) {
$username = trim($username);
$model = $model->where(function($query) use ($username) {
$query->where(‘USER_ACCOUNT.UserName‘, ‘like‘, "%$username%")
->orWhere(function($query) use ($username) {
$query->where(‘USER_ACCOUNT.MobileNo‘, ‘like‘, "%$username%");
});
->orWhere(function($query) use ($username) {
$query->where(‘USER_ACCOUNT.EMail‘, ‘like‘, "%$username%");
});
});
}
註意：在username不為空的判斷裏面，若沒有使用use則會報未定義的變量username
對比
第一種
$model = $model->where(function($query) use ($username) {
$query->where(‘USER_ACCOUNT.UserName‘, ‘like‘, "%$username%")
->orWhere(function($query) use ($username) {
$query->where(‘USER_ACCOUNT.MobileNo‘, ‘like‘, "%$username%");
});
->orWhere(function($query) use ($username) {
$query->where(‘USER_ACCOUNT.EMail‘, ‘like‘, "%$username%");
});
});
}
與
第二種
$model = $model >where(‘USER_ACCOUNT.UserName‘, ‘like‘, "%$username%")->orWhere(‘MobileNo‘, ‘like‘, "%$username%")->orWhere
(‘EMail‘, ‘like‘, "%$username%");
}
的區別
第一種是局部的or條件，只是對username的or判斷，而與其它條件是並且的關系，對照剛開始出現的SQL語句
而第二種是全局的or條件，若把第二種的語句替換掉第一種的語句，相當於SQL語句
SELECT * FROM `ACCOUNT_RECHARGE` LEFT JOIN `ORDER` ON `ACCOUNT_RECHARGE`.`OrderNo` = `ORDER`.`OrderNo` LEFT JOIN `USER_ACCOUNT` ON `ORDER`.`UserId` = `USER_ACCOUNT`.`UserId` WHERE `USER_ACCOUNT`.`UserName` LIKE ‘%18%‘ OR (`USER_ACCOUNT`.`MobileNo` LIKE ‘%18%‘) OR (`USER_ACCOUNT`.`EMail` LIKE ‘%18%‘) AND `ACCOUNT_RECHARGE`.`OrderTime` BETWEEN ‘2017-08-11 0:0:0‘ AND ‘2017-08-11 23:59:59‘ ORDER BY `ACCOUNT_RECHARGE`.`OrderTime` DESC;
這時，你會發現，只要username存在，你的其它條件就會失效。
這是我跳過的坑......
laravel5.3-數據庫操作下的局部or條件與全局or條件（orWhere的局部與全局）