BaseResourceController.php - A Pattern for Reusable Resource Controllers in Laravel 4.2 http://slashnode.com/reusable-resource-controllers/

BaseResourceController.php

<?php namespace App\Controllers;

abstract class BaseResourceController extends BaseController
{
    protected $repo;
    protected $model;
    protected $validator;

    public function index()
    {
        return \View::make($this->getFullRouteName('index'))
            ->with('items', $this->repo->paginate());
    }

    public function edit($id)
    {
        $data = array_merge($this->formData($id), [
            'item' => $this->repo->find($id)
        ]);

        return \View::make($this->getFullRouteName('edit'), $data);
    }

    public function create()
    {
        $data = array_merge($this->formData(), [
            'item' => new $this->model()
        ]);

        return \View::make($this->getFullRouteName('create'), $data);
    }

    public function store()
    {
        if ($this->validator->with($this->data())->fails()) {
            return $this->redirectToSubRoute()
                ->withErrors($this->validator->errors());
        }

        $this->repo->create($this->data());

        return $this->redirectToSubRoute('index')
            ->with('success_message', 'Saved '.$this->resourceName());
    }

    public function update($id)
    {
        if ($this->validator->with($this->data())->fails()) {
            return \Redirect::back()
                ->withErrors($this->validator->errors());
        }

        $this->repo->update($this->repo->find($id), $this->data());

        return $this->redirectToSubRoute('index')
            ->with('success_message', 'Updated '.$this->resourceName());
    }

    public function destroy()
    {
        return $this->redirectToSubRoute('index')
            ->with('error_message', 'Function not supported');
    }

    /**
     * Returns a structured route name based on the user and resource types.
     *
     * @param $subroute
     * @return \Illuminate\Routing\Redirector
     */
    protected function redirectToSubRoute($subroute = null)
    {
        if (is_null($subroute)) {
            return \Redirect::back();
        }

        return \Redirect::route($this->getFullRouteName($subroute));
    }

    /**
     * @param $subroute
     * @return string
     */
    protected function getFullRouteName($subroute)
    {
        $role = $this->userRole();
        $resource_name = $this->resourceName();

        return "{$role}.{$resource_name}.{$subroute}";
    }

    /**
     * Inject any values needed by the form here
     *
     * @param $entity_id
     * @return array
     */
    protected function formData($entity_id = null)
    {
        return [];
    }

    /**
     * @return string
     */
    abstract protected function userRole();

    /**
     * @return string
     */
    abstract protected function resourceName();
}