README

Set eloquent relationships with table that contains comma separated values as a foreign key

Installation

Get package using composer :

composer require josef/postgre-comma-relations

1.

You have to extends Josef\Model class instead of Illuminate\Database\Eloquent\Model

<?php

namespace App;

use Josef\Model;

class Test extends Model
{
    //
}

You can also use traits instead of extend Model class

Like in Laravel, Users model not extending Model class. So you can use trait. Josef\FindInSet\FindInSetRelationTrait

Example:

<?php

namespace App;

use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Josef\FindInSet\FindInSetRelationTrait;

class User extends Authenticatable
{
    use Notifiable, FindInSetRelationTrait;

    public function city ()
    {
        return $this->FindInSetOne( 'App\City', 'city_ids', 'id', 1);
    }

    public function state ()
    {
        return $this->FindInSetOne( 'App\State', 'city_ids', 'id', 2);
    }

    public function country ()
    {
        return $this->FindInSetOne( 'App\Country', 'city_ids', 'id', 3);
    }

    public function hobbies ()
    {
        return $this->FindInSetMany( 'App\Hobbies', 'hobbies_id', 'id');
    }

}

To create HasMany Relation you have to write as :

public function order_product (){
    return $this->FindInSetMany( CLASS_NAME, FOREIGN_KEY, LOCAL_KEY);
}

To create HasOne Relation you have to write as :

public function order_product (){
    return $this->FindInSetOne( CLASS_NAME, FOREIGN_KEY, LOCAL_KEY);
}

You can also pass 4th argumaent to detect position in FIND_IN_SET :

If you have an address table schema and stored city_ids like city_id,state_id,country_id.

Now, you want to find only city_id, you will do as : select * from address where FIND_IN_CITY( 2, city_ids ) = 1;// Here $index = 1

Like, for state_id: select * from address where FIND_IN_CITY( 1, city_ids ) = 2;// Here $index = 2

Like, for country_id: select * from address where FIND_IN_CITY( 5, city_ids ) = 3;// Here $index = 3

4th argument is optional

public function order_product (){
    return $this->FindInSetMany( CLASS_NAME, FOREIGN_KEY, LOCAL_KEY, Number);
}