Laravel eloquent - 在加入表时防止覆盖值

问题描述

class Account extends Eloquent
{
  protected $table = 'account';

  /* [...] */

  public function group() {
    return $this->belongsTo('Group');
  }
}

和

class Role extends Eloquent {

  protected $table = 'role';

  public function accounts() {
    return $this->hasMany('Account');
  }

}

和数据库表:account 和 role

account
-------
id
name
role_id (nullable)

role
----
id
name

现在的事情是:

我需要按 role.name 列对 accounts 进行排序.但是在 join(或 leftJoin)值被第二个表中的值覆盖后.这是一些代码:

And now the thing is:

I need to order accounts by role.name column. But after join (or leftJoin) values are overriden by those from second table. Here's some code:

$response = Account::with('role')->leftJoin('group', 'group.id', '=', 'account.group_id')->get();

之后 id 和 name 的值在 eloquent 集合中不正确.

After that values for id and name are incorrect in eloquent collections.

此外，我需要返回的是 eloquent 类型模型，因为我以 JSON 返回响应，重要的是稍后在 JS 中(解析 JSON 后)我可以只做 account.role.name.

Also, i need the return to be eloquent type models as i'm returning back the response in JSON, where it is important that later in JS (after parsing JSON) i can do just account.role.name.

更改表中字段的名称(例如:id -> account_id 和:id -> role_id)将是一种解决方法，但这不是我的情况 - 需要将主键命名为 id每张桌子.

Changing names of fields in tables (like: id -> account_id, and: id -> role_id) would be an workaround, but that's not my case - need to have primary key named id for every table.

是的，所以问题很简单:如何解决这个问题?

[edit] Yep, so the question is simply: how to solve that problem?

推荐答案

您可以像在普通 SQL 查询中一样使用选择":

You can use 'select' like you would in a normal SQL query:

$response = Account::with('role')
    ->select('account.*')
    ->leftJoin('group', 'group.id', '=', 'account.group_id')
    ->get();

http://laravel.com/docs/queries#selects

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