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我正在使用带有 MySQL 的 Laravel 4 并使用关系方法来访问相关表的数据。我有以下相关表格：

团队表：

id INT
partnet_id INT  -- Related many-to-one with partner table
name VARCHAR(50)

合作伙伴表：

id INT
name VARCHAR(50)
-- more data about only to partners

客人桌：

id INT
name VARCHAR(50)
-- more data about only to guests

和成员表：

id INT
partner_id INT -- Related many-to-one to partner table
guest_id INT -- Related many-to-one to guest table
team_id INT -- Related many-to-one to team table

所以，我想让一个团队（或所有团队）与他们的成员一起使用他们与客人或合作伙伴的相关数据。

输出应该是这样的：

{ 
    "id": 1,
    "partner": {
        "id": 1,
        "name":"Hello world",
        "partner_number":1111,
        "handicap":12
    },
    "name":"my team,
    "members": [
        {
            "id": 1,
            "name":"Hello world",
            "partner_number":1111,
            "handicap":12,
            "type": "partner"
        },
        {
            "id": 2,
            "name": "Cat Kitten",
            "partner_number":2222,
            "handicap":12,
            "type": "partner"
        },
        {
            "id": 3,
            "name": "Bruce Wayne",
            "partner_number":3333,
            "handicap":10,
            "type": "partner"
        },
        {
            "id": 1,
            "name": "The Joker",
            "idcard":21841933,
            "handicap":10,
            "type": "guest"
        }
    ]
}

我尝试通过以下方式获得该输出：

$teams = Team::find(1);
$teams->load('partner', 'member.partner', 'member.guest');

有了它，我得到了所需的数据，但有了我并不真正想要/不需要的东西：

Array
(
    [id] => 2
    [partner_id] => 2
    [name] => 'my team'
    [partner] => Array
        (
            [id] => 2
            [name] => Batman Batman
            [partner_number] => 2222
            [handicap] => 8
        )
    [members] => Array
        (

            [1] => Array
                (
                    [id] => 5           // I don't need this
                    [team_id] => 2      // I don't need this
                    [partner_id] => 3   // I don't need this
                    [guest_id] =>       // I don't need this
                    [partner] => Array
                        (
                            [id] => 3
                            [name] => Amazing Spiderman
                            [partner_number] => 3333
                            [handicap] => 12
                        )

                    [guest] =>          // I don't need this
                )

            [2] => Array
                (
                    [id] => 6           // I don't need this
                    [team_id] => 2      // I don't need this
                    [partner_id] =>     // I don't need this    
                    [guest_id] => 1     // I don't need this
                    [partner] =>        // I don't need this
                    [guest] => Array
                        (
                            [id] => 1
                            [name] => Eddard Stark
                            [idcard] => 2139823
                            [handicap] => 21
                        )

                )

        )

)

评论的地方// I don't need this是与成员表相关的数据，但我只需要内部关系数据（合作伙伴或访客数据）。例如，如果我这样做，Member::find(1)->partner我会得到没有成员表内容的合作伙伴数据。是否可以在 Laravel 中使用急切加载或其他方法来做类似的事情？

我知道我可以对输出进行操作和迭代，只保留必要的数据，但我只想知道是否可以不进行更多查询或进行繁重的循环。

任何提示、帮助或评论都会很有用。

4

1 回答 1

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尝试在模型类中使用$visibleand$hidden数组。

从文档：

有时您可能希望限制模型数组或 JSON 表单中包含的属性，例如密码。为此，请向您的模型添加一个隐藏的属性定义：

从数组或 JSON 转换中隐藏属性

class User extends Eloquent {

    protected $hidden = array('password');

}

或者，您可以使用 visible 属性来定义白名单：

protected $visible = array('first_name', 'last_name');

见这里： http: //four.laravel.com/docs/eloquent

于 2013-10-14T14:48:19.150 回答