Laravel Eloquent：违反完整性约束：1052 where 子句中的列“id”不明确

Question

我正在建立一个网站，许多成员可以加入许多团体。

//User.php
public function groups()
    {
        return $this->belongsToMany(Group::class, 'group_member', 'member_id', 'group_id');
    }

从组id中检索相关成员的函数

//UserRepository.php
public function getRelatedMembersByGroupIds(array $groupIds)
    {
        $members = User::whereHas('groups', function ($query) use ($groupIds) {
            return $query->whereIn('groups.id', $groupIds);
        });
        return $members->get();
    }

正在从 UserController 调用存储库

//UserController.php
public function getRelatedMembersByGroupIds(Request $request)
    {
        $groupIds = $request->get('group_ids');

        $members = $this->userRepository->getRelatedMembersByGroupIds($groupIds);

        $responses = [
            'status' => 'success',
            'groupRelatedMembers' => $members
        ];

        return response()->json($responses);
    }

它返回

SQLSTATE[23000]：违反完整性约束：1052 列“id”在 where 子句中不明确（SQL：select users.* from users where exists (select * from groupsinner join group_member on groups.id = group_member.group_id where users.id = group_member.member_id and groups.id in (1) and groups.deleted_at 为空且id = 1))

Answer 1

在最后一个 where 子句中，有“ id=1 ”。您需要将其表示为“ table_name .id=1”。

Answer 2

我忘记了我已经实现了组模型的全局范围。在 GroupScope 中添加 groups.id 后，效果很好。

<?php

namespace App\Scopes;

use App\Helpers\AuthenticationHelper;
use Illuminate\Database\Eloquent\Scope;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Builder;

class GroupScope implements Scope
{
    /**
     * Apply the scope to a given Eloquent query builder.
     *
     * @param \Illuminate\Database\Eloquent\Builder $builder
     * @param \Illuminate\Database\Eloquent\Model $model
     * @return void
     */
    public function apply(Builder $builder, Model $model)
    {
        if (AuthenticationHelper::isEmployee())
        {
            //Problem was I did not added groups table below.
            $builder->where('groups.id', auth()->user()->branch_id);
        }
    }
}

Answer 3

我不确定，但它可能会起作用

你的代码

public function getRelatedMembersByGroupIds(array $groupIds)
    {
        $members = User::whereHas('groups', function ($query) use ($groupIds) {
            return $query->whereIn('groups.id', $groupIds);
        });
        return $members->get();
    }

您能否dd($members)分享结果，以便我深入研究该问题

Answer 4

就我而言，这是由于多租户TenantScope范围造成的。

解决方法是在字段中添加表名称前缀（在我的例子中这是通用的），因为范围适用于所有模型。

我的解决方案是使用$model->getTable()如下：

<?php

namespace App\Scopes;

use App\Helpers\AuthenticationHelper;
use Illuminate\Database\Eloquent\Scope;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Builder;

class GroupScope implements Scope
{
    /**
     * Apply the scope to a given Eloquent query builder.
     *
     * @param \Illuminate\Database\Eloquent\Builder $builder
     * @param \Illuminate\Database\Eloquent\Model $model
     * @return void
     */
    public function apply(Builder $builder, Model $model)
    {
        if (AuthenticationHelper::isEmployee())
        {
            //Problem was I did not added groups table below.
            $builder->where($model->getTable() . '.id', auth()->user()->branch_id);
        }
    }
}