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php – Eloquent关系设置,同一个表laravel 5.2的两个外键

2019-06-11 18:16:18  阅读：283  来源： 互联网

标签：php laravel-5-2


我遇到了大问题,我在我的项目中保持雄辩的关系设置,我有以下关系：

>与用户表中存储的登录相关的用户信息.
>用户档案相关信息存储在档案信息中.
>存储在地址表中的用户地址
>配置相关信息存储在城市,州,国家等配置中

努力

这是迁移和模型及其关系：

users migration table

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateUsersTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('users', function (Blueprint $table) {
            $table->increments('id');
            $table->string('email')->unique();
            $table->string('password', 60);
            $table->rememberToken();
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::drop('users');
    }
}

User Model

namespace App;

use Illuminate\Foundation\Auth\User as Authenticatable;

class User extends Authenticatable
{
    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'email', 'password',
    ];

    /**
     * The attributes excluded from the model's JSON form.
     *
     * @var array
     */
    protected $hidden = [
        'password', 'remember_token',
    ];

    public function profile()
    {
        return $this->hasOne('App\Profile','user_id');
    }
}

profile migration table

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateProfilesTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('profiles', function (Blueprint $table) {
            $table->increments('profile_id');
            $table->integer('user_id')->unsigned();
            $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
            $table->string('lastname')->nullable();
            $table->string('firstname')->nullable();
            $table->string('gender')->nullable();
            $table->string('phonenumber', 20)->nullable();
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::drop('profiles');
    }
}

Profile Model

namespace App;

use Illuminate\Database\Eloquent\Model;

class Profile extends Model
{
     protected $fillable = [
        'firstname', 'lastname',
    ];

    public function user(){
        return $this->belongsTo('App\User');
    }
    public function address()
    {
        return $this->hasOne('App\Address','profile_id');
    }
}

Configuration migration table

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateConfigurationsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('configurations', function (Blueprint $table) {
            $table->increments('config_id');
            $table->string('configuration_name');
            $table->string('configuration_type');
            $table->string('parent_id');
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::drop('configurations');
    }
}

Configuration Model

namespace App;

use Illuminate\Database\Eloquent\Model;

class Configuration extends Model
{
    public function children() {
        return $this->hasMany('App\Configuration','parent_id');
    }
    public function parent() {
        return $this->belongsTo('App\Configuration','parent_id');
    }

    public function city() {
        return $this->hasOne('App\Address', 'city');
    }

    public function state() {
      return $this->hasOne('App\Address', 'state');
    }

    public function country() {
        return $this->hasOne('App\Address', 'country');
    }
}

Address Migration Table

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateAddressesTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('addresses', function (Blueprint $table) {
            $table->increments('address_id');
            $table->integer('profile_id')->unsigned();
            $table->foreign('profile_id')->references('profile_id')->on('profiles')->onDelete('cascade');
            $table->string('address')->nullable();
            $table->integer('city')->unsigned();
            $table->foreign('city')->references('config_id')->on('configurations')->onDelete('cascade');
            $table->string('pincode')->nullable();
            $table->integer('state')->unsigned();
            $table->foreign('state')->references('config_id')->on('configurations')->onDelete('cascade');
            $table->integer('country')->unsigned();
            $table->foreign('country')->references('config_id')->on('configurations')->onDelete('cascade');
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::drop('addresses');
    }
}

Address Model

namespace App;

use Illuminate\Database\Eloquent\Model;

class Address extends Model
{
    public function profile(){
        return $this->belongsTo('App\Profile');
    }

    public function city() {
        return $this->belongsTo('App\Configuration');
    }

    public function state() {
      return $this->belongsTo('App\Configuration');
    }

    public function country() {
        return $this->belongsTo('App\Configuration');
    }
}

我用Eloquent relation setup, two foreign keys to same table来建立我的项目关系.但不幸的是,上面的代码并没有产生欲望输出.看一看：

If i use below command:

Auth::user()->profile->firstname

it will print user first name

So if i use 

Auth::user()->profile->address->city
it should print city name stored in configuration table, but instead print name it print the id.

请建议我的解决方案.

谢谢,

解决方法:

好吧,我为自己的问题找到了解决方案.感谢所有认为这个问题有价值的人.

好吧,我们不需要更改用户或配置文件,我们只需要在配置和地址模型中进行一些更改.

更改

class Address extends Model
{
    public function profile(){
        return $this->belongsTo('App\Profile');
    }

    public function city() {
        return $this->belongsTo('App\Configuration');
    }

    public function state() {
      return $this->belongsTo('App\Configuration');
    }

    public function country() {
        return $this->belongsTo('App\Configuration');
    }
}

至

class Address extends Model
{
    public function profile(){
        return $this->belongsTo('App\Profile');
    }

    public function cityConfiguration() {
        return $this->belongsTo('App\Configuration', 'city');
    }

    public function stateConfiguration() {
      return $this->belongsTo('App\Configuration', 'state');
    }

    public function countryConfiguration() {
        return $this->belongsTo('App\Configuration', 'country');
    }
}

并改变

class Configuration extends Model
{
    public function children() {
        return $this->hasMany('App\Configuration','parent_id');
    }
    public function parent() {
        return $this->belongsTo('App\Configuration','parent_id');
    }

    public function city() {
        return $this->hasOne('App\Address', 'city');
    }

    public function state() {
      return $this->hasOne('App\Address', 'state');
    }

    public function country() {
        return $this->hasOne('App\Address', 'country');
    }
}

至

class Configuration extends Model
{
    public function children() {
        return $this->hasMany('App\Configuration','parent_id');
    }
    public function parent() {
        return $this->belongsTo('App\Configuration','parent_id');
    }

    public function city() {
        return $this->hasOne('App\Address', 'city');
    }

    public function state() {
      return $this->hasOne('App\Address', 'state');
    }

    public function country() {
        return $this->hasOne('App\Address', 'country');
    }
}

就是这样.一切都很好.

标签：php,laravel-5-2
来源： https://codeday.me/bug/20190611/1220283.html

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