Laravel relationship DB connection - php

Question

I m trying to get Model relationship with different connection, basically my connections are dynamic.
$con = 'con1'
$persons = new \App\Models\Person;
$persons->setConnection($con);
$persons = $persons->where('somevalue', 1)->get()
So here I get Person from con1 (where con1 is stored in config/databse.php
It can be con2, con3, con4 and etc.
However this works, but when I am trying to loop through this data and get relationship it switches to default Database connection.
#foreach($persons as $person)
{{$person->data->name}}
#endforeach
In above loop data is a belongsTo relation ship in Person Model, and it throws error because it switches back to default Database connection and not using con1
It is possible to setConnection() and keep for hasMany relationship and also for belongsTo relationship?
I cant set protected $connection; in Model because connections are changble
What I tried until now is I created an absctract class that extendseloquent, and my models extending this abstract class
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model as Eloquent;
abstract class Database extends Eloquent {
protected $connection;
}
<?php
namespace App\Models;
use App\Models\Database as Database;
class Person extends Database{
protected $table = 'persons';
}
So theoritically when I setConnection I set connection to all models that extends this class but still no luck.

Answer 1

You may try eager loading of the relationship:
$persons = $persons->with('data')->where('somevalue', 1)->get();

Answer 2

I found a solution maybe wrong but is working:
I create a file in config where I add all my connections:
<?php
return [
'con1' => [
'name' => 'Persons Connection',
'url' => 'persons',
'active' = true
],
'con2' => [
'name' => 'Italy Persons Connection',
'url' => 'italypersons',
'active' = false
],
];
So like this I can event control if con2 is available
In Database connection config file I have con1 connection with all db data
After in routes.php a bind the url example /info/{con} where con = 'persons'
Route::bind('con', function($con, $route){
foreach(config('connections') as $key => $value){
if($value['url'] == $con && $value['active'] == true){
session(['connection' => $key]); //where $key == con1
return $key;
}
abort(404);
}
});
So: I have a Class Person that extends abstract method with __construct function
<?php
namespace App\Models;
use App\Models\Database as Database;
class Person extends Eloquent{
protected $table = 'persons';
}
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model as Eloquent;
abstract class Database extends Eloquent {
function __construct(array $attributes = array())
{
parent::__construct($attributes);
$this->setConnection(session('connection'));
}
}
So like this I am sure if user get to URL /info/{con} It will set the connection sessions if it exist in my connections config file, without losing sensitive data from config/database.php
If somebody have better idea please write it