This code below is the example how to apply a global filter for Eloquent Models in Laravel (tested with LV 3.2.14). This will be useful if you have data that is stored in one table but has some classification defined by a column (in this example the column name is 'type') and you want to treat them differently in different models.

Laravel-Global-FIlter-Condition-for-Eloquent.php

<?php
class Parents extends Eloquent {
	
	const TYPE_A		= 1;
	const TYPE_B		= 2;
	
	static $type = null;
	
	function __construct($type = null)
	{
		parent::__construct();
		
		if(!empty($type)) static::$type = $type;
	}
	
	public function __call($method, $parameters)
	{
		$return = parent::__call($method, $parameters);
		
		if($method == 'query') $return->where('type', '=', static::$type);
		return $return;
	}
	
	public function save()
	{
		$this->type = static::$type;
		parent::save();
	}
}

class ChildA extends Downloads {
	
	function __construct()
	{
		return parent::__construct( static::TYPE_A );
	}
	
}

class ChildB extends Downloads {
	
	function __construct()
	{
		return parent::__construct( static::TYPE_B );
	}
	
}

var $childA = new ChildA;
var_dump( $childA::all() ); // will only shows data with "type" = "1"

$childA->column_name = "value";
$childA->save(); // the "type" column will be set to "1" automatically

var $childB = new ChildB;
var_dump( $childB::all() ); // will only shows data with "type" = "2"

$childB->column_name = "value";
$childB->save(); // the "type" column will be set to "2" automatically