Add config options for database table prefixes and custom user tables

Author: ajoy39

README.md

@@ -80,6 +80,8 @@ class User extends Model implements AuthenticatableContract, CanResetPasswordCon
 
 6. Run the migrations to generate your roles and permissions tables
 
+Please note that if you are upgrading to 6.0 from a previous version, the default column type for the id on the users table has changed. On certain databases foreign keys can only be defined with matching column types. As such, you will need to change the id column on your users table to bigInteger in to user this package. 
+
 ```
 php artisan migrate
 ```

src/config/acl.php

@@ -1,6 +1,19 @@
 <?php
 
 return [
+
+    /*
+    /--------------------------------------------------------------------------
+    / Custom Database Options
+    /--------------------------------------------------------------------------
+    /
+    / If you want to add a prefix to your acl tables, or if you use a different
+    / table for your user class, define it here
+    */
+
+    'db_prefix'   => '',
+    'users_table' => '',
+
     /*
     |--------------------------------------------------------------------------
     | Model Definitions

src/migrations/2015_02_07_172633_create_role_user_table.php

@@ -13,6 +13,7 @@ class CreateRoleUserTable extends Migration
     public function __construct()
     {
         $this->prefix = config('acl.db_prefix');
+        $this->users_table = config('acl.users_table') === '' ? 'users' : config('acl.users_table');
     }
 
     /**
@@ -37,7 +38,7 @@ public function up()
 
             $table->foreign('user_id')
                 ->references('id')
-                ->on(config('acl.users_table'))
+                ->on()
                 ->onDelete('cascade');
         });
     }