Add service provider to support vendor:publish config (#60)

* Add service provider to support publish config
* Add facade to elasticsearch client

Author: chuangbo

readme.md

@@ -76,7 +76,25 @@ To get started, add Elasticquent to you composer.json file:
 
     "elasticquent/elasticquent": "dev-master"
 
-Once you've run a `composer update`, add the Elasticquent trait to any Eloquent model that you want to be able to index in Elasticsearch:
+Once you've run a `composer update`, you need to register Laravel service provider, in your `config/app.php`:
+
+```php
+'providers' => [
+    ...
+    Elasticquent\ElasticquentServiceProvider::class,
+],
+```
+
+We also provide a facade for elasticsearch-php client (which has connected using our settings), add following to your `config/app.php` if you need so.
+
+```php
+'aliases' => [
+    ...
+    'Es' => Elasticquent\ElasticquentElasticsearchFacade::class,
+],
+```
+
+Then add the Elasticquent trait to any Eloquent model that you want to be able to index in Elasticsearch:
 
 ```php
 use Elasticquent\ElasticquentTrait;
@@ -92,7 +110,11 @@ Now your Eloquent model has some extra methods that make it easier to index your
 
 ### Elasticsearch Configuration
 
-If you need to pass a special configuration array Elasticsearch, you can add that in an `elasticquent.php` config file at `/app/config/elasticquent.php` for Laravel 4, or `/config/elasticquent.php` for Laravel 5:
+By default, Elasticquent will connect to `localhost:9200` and use `default` as index name, you can change this and the other settings in the configuration file. You can add the `elasticquent.php` config file at `/app/config/elasticquent.php` for Laravel 4, or use the following Artisan command to publish the configuration file into your config directory for Laravel 5:
+
+```shell
+$ php artisan vendor:publish --provider="Elasticquent\ElasticquentServiceProvider"
+```
 
 ```php
 <?php
@@ -223,29 +245,6 @@ You can also get the type mapping and check if it exists.
     Book::getMapping();
 ```
 
-### Setting a Custom Index Name
-
-Elastiquent will use `default` as your index name, but you can set a custom index name by creating an `elasticquent.php` config file in `/app/config/`:
-
-```php
-<?php
-
-return array(
-
-    /*
-    |--------------------------------------------------------------------------
-    | Default Index Name
-    |--------------------------------------------------------------------------
-    |
-    | This is the index name that Elastiquent will use for all
-    | Elastiquent models.
-    */
-
-    'default_index' => 'my_custom_index_name',
-
-);
-```
-
 ### Setting a Custom Type Name
 
 By default, Elasticquent will use the table name of your models as the type name for indexing. If you'd like to override it, you can with the `getTypeName` function.

src/ElasticquentElasticsearchFacade.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Elasticquent;
+
+use Illuminate\Support\Facades\Facade;
+
+/**
+ * @see \Elasticquent\ElasticquentServiceProvider
+ */
+class ElasticquentElasticsearchFacade extends Facade
+{
+    /**
+     * Get the registered name of the component.
+     *
+     * @return string
+     */
+    protected static function getFacadeAccessor()
+    {
+        return 'elasticquent.elasticsearch';
+    }
+}

src/ElasticquentServiceProvider.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Elasticquent;
+
+use Illuminate\Support\ServiceProvider;
+
+class ElasticquentServiceProvider extends ServiceProvider
+{
+    /**
+     * Bootstrap services.
+     *
+     * @return void
+     */
+    public function boot()
+    {
+        $this->publishes([
+            __DIR__.'/config/elasticquent.php' => config_path('elasticquent.php'),
+        ]);
+    }
+
+    /**
+     * Register services.
+     *
+     * @return void
+     */
+    public function register()
+    {
+        // Support class
+        $this->app->singleton('elasticquent.support', function () {
+            return new ElasticquentSupport;
+        });
+
+        // Elasticsearch client instance
+        $this->app->singleton('elasticquent.elasticsearch', function ($app) {
+            return $app->make('elasticquent.support')->getElasticSearchClient();
+        });
+    }
+}

src/ElasticquentSupport.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace Elasticquent;
+
+class ElasticquentSupport
+{
+    use ElasticquentClientTrait;
+}

src/config/elasticquent.php

@@ -27,6 +27,6 @@
     | Elasticquent models.
     */
 
-    'default_index' => 'my_custom_index_name',
+    'default_index' => 'default',
 
 );