如何检查用户是否喜欢属性

Question

我正在制作一个属性广告网站。在应用中用户可以点赞或'star'一个属性。这在带星标的 table 中创建了一条记录 property_id 和 user_id.

我想检查用户是否喜欢当前的属性，这样他们就不会再喜欢了。

目前就在 API 结束。

这是我的控制器

这将创建 liked/starred 记录。

public function store(Property $property, User $user, Request $request)
    {     
        $starred = StarredProperty::create(['property_id' => $property->id, 'user_id' => $user->id]);

        return $starred;
    }

这是加星标的属性模特

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;


class StarredProperty extends Model
{
    use SoftDeletes;

    protected $fillable = ['property_id', 'user_id'];
}

这是与所有加星标属性相关的用户模型。

<?php

namespace App;

use Illuminate\Notifications\Notifiable;
use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Foundation\Auth\User as Authenticatable;
use App\Property;
use App\StarredProperty;
use Tymon\JWTAuth\Contracts\JWTSubject;


class User extends Authenticatable implements JWTSubject
{
    use Notifiable;

    protected $fillable = [
        'first_name', 'last_name', 'username', 'email', 'phone_number', 'password',
    ];

    protected $hidden = [
        'password', 'remember_token',
    ];

    protected $casts = [
        'email_verified_at' => 'datetime',
    ];

    public function properties()
    {
        return $this->hasMany(Property::class);
    }

    public function starredProperties()
    {
        return $this->hasMany(StarredProperty::class);
    }


    public function getJWTIdentifier()
    {
        return $this->getKey();
    }


    public function getJWTCustomClaims()
    {
        return [];
    }
}

Answer 1

您只需为此在控制器中添加一个检查即可。您可以将代码更改为如下内容：

public function store(Property $property, User $user, Request $request)
{
    if (! $user->starredProperties()->where('property_id', $property->id)->exists()) {
        $starred = StarredProperty::create(['property_id' => $property->id, 'user_id' => $user->id]);

        return $starred;
   }

   // Return whatever else you want here if they have already starred the property
}

如何检查用户是否喜欢属性

How do I check if a user has like a property

laravel

eloquent

laravel-5

laravel-5.8

如何检查用户是否喜欢 属性

How do I check if a user has like a property

laravel

eloquent

laravel-5

laravel-5.8

如何检查用户是否喜欢属性