How to set Laravel Model table/collection dynamically? - php

Question

I am using GitHub - jenssegers/laravel-mongodb: A MongoDB based Eloquent model and Query builder for Laravel;
In my Laravel project I created DB model that sets Model table name dynamically (in Mongodb case collection) .
use Jenssegers\Mongodb\Eloquent\Model as Eloquent;
class DbData extends Model
{
protected $collection = 'default_collection';
function __construct($collection)
{
$this->collection = $collection;
}
}
This works when I am creating new DbData object, for data insert:
$data = new DbData('dynamic_collection_name');
$data->variable = 'Test';
$data->save();
But this solution is not enough of I want to use this DbData model for querying data from my database.
What I want to achieve is to add possibility to pass variable for DbModel, for instance something like this:
$data = DbData::setCollection('dynamic_collection_name');
$data->get();

Answer 1

You could perhaps do something like this on your class.
use Jenssegers\Mongodb\Eloquent\Model as Eloquent;
class DbData extends Model
{
protected $collection = 'default_collection';
public function __construct($collection)
{
$this->collection = $collection;
}
public static function setCollection($collection)
{
return new self($collection);
}
}
This will allow you to call DbData::setCollection('collection_name') and the collection name will only be set for that specific instance.

Answer 2

<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Jenssegers\Mongodb\Eloquent\Model as Eloquent;
class DbData extends Eloquent
{
use HasFactory;
// if you need to set default collection also then uncomment below line.
// protected $collection = 'defaultCollectionIfWantsToSet';
/**
* set collection name
*
* #param string $collection
* #return $this
*/
public static function setCollection($collection)
{
$instance = new self();
$instance->collection = $collection;
return $instance;
}
// OR you can use function as like below also
// public static function setCollection($collection)
// {
// $instance = new self();
// return $instance->setTable($collection);
// }
}
this will allow you to call DbData::setCollection('collection_name') and the collection name will only be set for that specific instance
I tested with Laravel 8 & 9