Laravel can't instantiate interface via __construct (using App::bind) - php

Question

I am trying to resolve class via __construct using Laravel's bind() method.
Here what I do:
routes.php (of course I will move it away from here)
// Bindings
App::bind(
'License\Services\ModuleSelector\SelectorInterface',
'License\Services\ModuleSelector\ModuleSelector'
);
SelectorInterface.php - interface that I will expect in __construct method.
<?php namespace License\Services\ModuleSelector;
interface SelectorInterface {
/**
* Simply return query that will select needle module fields
*
* #return mixed
*/
public function make();
}
ModuleSelector.php - this is class that I want to resolve via Laravel's DI (see example below).
<?php namespace License\Services\ModuleSelector;
use License\Services\ModuleSelector\Selector;
class ModuleSelector extends Selector
{
/**
* Get module by it's code
*
* #return mixed
*/
public function find()
{
return $this->make()
->where('code', $module_code)
->first();
}
}
Module.php
<?php namespace License\Services\ModuleType;
use License\Services\ModuleType\TypeInterface;
use License\Services\ModuleSelector\SelectorInterface;
class Module
{
...
function __construct(SelectorInterface $selector)
{
$this->selector = $selector;
}
...
}
And the place when error occurs:
In my repo I have use License\Services\ModuleType\Module as ModuleService;.
Than there is method called find():
/**
* Find module by its code with all data (types, selected type)
* #return mixed
*/
public function find($module_code)
{
$module = new ModuleService;
// Get module id in order to use build in relations in framework
$module = $this->module->find($module_code);
...
}
So, in other words, I have 2 classes and one interface. What I am trying to do is:
1) Create Class1.php / Class2.php / Class2Interface.php.
2) In Class1.php in the __construct I specify __construct(Class2Interface $class2).
3) Instantiate Class2.
What I am doing wrong? Examples found here.

Answer 1

In this line:
$module = new ModuleService;
You are directly invoking the Module class and not passing in an instance of SelectorInterface.
For the IoC to work you bind and make classes using it. Try that line again with :
$module = App::make('License\Services\ModuleSelector\SelectorInterface');
An alernative is to inject it directly into your repos constructor, as long as the repo is created by the IoC container, your concrete will be automatically injected.

Answer 2

Nowhere do you have a class marked to actually "implement SelectorInterface".