laravel 5.3关系中的问题？

我想根据姓名或手机号在联系人表和通信链接表中搜索。其中，我的手机在“值”的通信链接表中，fname和lname在联系人表中。但是，通过使用rest\u id，在通信链路和资源\u状态中存在一种关系，并且资源\u状态与资源类型相连接

这是我的原始sql查询

SELECT  contacts.fname, contacts.lname, communication_links.value FROM contacts ,communication_links,resource_status 
                    where 
                    (contacts.id = communication_links.cont_id)
                    AND
                    (communication_links.rest_id = resource_status.id)
                    AND
                    resource_type.status LIKE '{mobile}%' 
                    AND 
                   (communication_links.value LIKE '{$search_string}%' OR 
                    contacts.fname LIKE '{$search_string}% OR contacts.lname LIKE '{$search_string}%  )

我有以下表格结构

contacts
  id
  fname
  lname
  dob

communication_links
  id
  rest_id
  cont_id
  value

resource_type
  id
  type

resource_status
  id
  Status
  rety_id

我创建了以下模型来维持这种关系

Contact.php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Contact extends Model
{
    protected $connection = 'mysql_freesubs';

    public $timestamps = false;

    public function communicationLinks()
    {
        return $this->hasMany(Communication_link::class, 'cont_id');
    }
}

namespace App;

use Illuminate\Database\Eloquent\Model;

class Communication_link extends Model
{
    protected $connection = 'mysql_freesubs';


    public $timestamps = false;

    public function resource()
    {
        return $this->belongsTo(Resource_status::class, 'rest_id');
    }

    public function contact()
    {
        return $this->belongsTo(Contact::class, 'cont_id');
    }
}

namespace App;

use Illuminate\Database\Eloquent\Model;

class Resource_status extends Model
{
    protected $connection = 'mysql_freesubs';
    protected $table = 'resource_status';


}

namespace App;

use Illuminate\Database\Eloquent\Model;

class Resource_type extends Model
{
     protected $connection = 'mysql_freesubs';

    public $timestamps = false;

    public function resourceStatuses()
    {
        return $this->hasMany(Resource_status::class, 'rety_id');
    }
}

通信链接.php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Contact extends Model
{
    protected $connection = 'mysql_freesubs';

    public $timestamps = false;

    public function communicationLinks()
    {
        return $this->hasMany(Communication_link::class, 'cont_id');
    }
}

namespace App;

use Illuminate\Database\Eloquent\Model;

class Communication_link extends Model
{
    protected $connection = 'mysql_freesubs';


    public $timestamps = false;

    public function resource()
    {
        return $this->belongsTo(Resource_status::class, 'rest_id');
    }

    public function contact()
    {
        return $this->belongsTo(Contact::class, 'cont_id');
    }
}

namespace App;

use Illuminate\Database\Eloquent\Model;

class Resource_status extends Model
{
    protected $connection = 'mysql_freesubs';
    protected $table = 'resource_status';


}

namespace App;

use Illuminate\Database\Eloquent\Model;

class Resource_type extends Model
{
     protected $connection = 'mysql_freesubs';

    public $timestamps = false;

    public function resourceStatuses()
    {
        return $this->hasMany(Resource_status::class, 'rety_id');
    }
}

Resource\u status.php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Contact extends Model
{
    protected $connection = 'mysql_freesubs';

    public $timestamps = false;

    public function communicationLinks()
    {
        return $this->hasMany(Communication_link::class, 'cont_id');
    }
}

namespace App;

use Illuminate\Database\Eloquent\Model;

class Communication_link extends Model
{
    protected $connection = 'mysql_freesubs';


    public $timestamps = false;

    public function resource()
    {
        return $this->belongsTo(Resource_status::class, 'rest_id');
    }

    public function contact()
    {
        return $this->belongsTo(Contact::class, 'cont_id');
    }
}

namespace App;

use Illuminate\Database\Eloquent\Model;

class Resource_status extends Model
{
    protected $connection = 'mysql_freesubs';
    protected $table = 'resource_status';


}

namespace App;

use Illuminate\Database\Eloquent\Model;

class Resource_type extends Model
{
     protected $connection = 'mysql_freesubs';

    public $timestamps = false;

    public function resourceStatuses()
    {
        return $this->hasMany(Resource_status::class, 'rety_id');
    }
}

Resource\u type.php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Contact extends Model
{
    protected $connection = 'mysql_freesubs';

    public $timestamps = false;

    public function communicationLinks()
    {
        return $this->hasMany(Communication_link::class, 'cont_id');
    }
}

namespace App;

use Illuminate\Database\Eloquent\Model;

class Communication_link extends Model
{
    protected $connection = 'mysql_freesubs';


    public $timestamps = false;

    public function resource()
    {
        return $this->belongsTo(Resource_status::class, 'rest_id');
    }

    public function contact()
    {
        return $this->belongsTo(Contact::class, 'cont_id');
    }
}

namespace App;

use Illuminate\Database\Eloquent\Model;

class Resource_status extends Model
{
    protected $connection = 'mysql_freesubs';
    protected $table = 'resource_status';


}

namespace App;

use Illuminate\Database\Eloquent\Model;

class Resource_type extends Model
{
     protected $connection = 'mysql_freesubs';

    public $timestamps = false;

    public function resourceStatuses()
    {
        return $this->hasMany(Resource_status::class, 'rety_id');
    }
}

我尝试编写与上面给出的相同的查询，但没有得到理想的结果：

$parent_contact = \App\Contact::with('communicationLinks.resource')
                                            ->whereHas('communicationLinks.resource', function ($query) {
                                                    $query->where('status', 'LIKE', "{mobile}%");
                                                })

                                            ->whereHas('communicationLinks.contact',function ($query) use($request) {
                                                $query->where('communicationLinks.value','LIKE',"{$request->search_string}%")
                                                      ->orWhere('fname','LIKE',"{$request->search_string}%")
                                                      ->orWhere('lname','LIKE',"{$request->search_string}%");
                                                })
                                             ->get();

这应该能帮你完成任务

您只需遍历它即可获得所需的值

这应该能帮你完成任务

---

您可以通过迭代来获得所需的值

您是否尝试过使用laravel fluent来查询表我的意思是使用

DB:：raw

编写laravel查询，它将生成与您上面编写的sql同义的sql查询不是在laravel fluent中，而是在structural phptry out laravel fluent中使用

DB:：table

我收到了这个错误“类的对象\Database\Query\Builder无法转换为字符串”抱歉，我无法在此发布查询您是否尝试过使用laravel fluent查询表我的意思是使用

DB:：raw

编写laravel查询，它将生成与您上面编写的sql同义的sql查询不是在laravel fluent中，而是在structural phptry out laravel fluent中使用

DB:：table

运行的，我遇到了这个错误“无法将Illumb\Database\Query\Builder类的对象转换为字符串“很抱歉，我不能在这里发布查询，但是有没有其他方法来解决这个问题，因为这个方法在处理过程中有点慢。您可能想查看您的数据库，也许添加索引会有所帮助，因为这不再是一个laravel问题。您可以安装laravel debugbar来查看查询需要多长时间。如何调试查询？哦，我知道了。抱歉，没什么。但是有没有其他方法来解决这个问题，因为这个方法在处理过程中有点慢。你可能想看看你的数据库，也许添加索引会有所帮助，因为这已经不再是laravel的事情了。您可以安装laravel debugbar来查看查询需要多长时间。如何调试查询？哦，我知道了。对不起，没什么。