Support spaces between JSON key/value (#12)

When using a `json` database column spaces are added between a key and value.
When using a `text` database column NO spaces are added between a key and value. (= default output of `json_encode`)

Author: ctf0

src/UniqueTranslationValidator.php

@@ -229,7 +229,11 @@ protected function isUnique($value, $name, $locale, $parameters)
      */
     protected function findTranslation($connection, $table, $column, $locale, $value)
     {
-        return DB::connection($connection)->table($table)->where($column, 'LIKE', "%\"{$locale}\":\"{$value}\"%");
+        return DB::connection($connection)->table($table)
+            ->where(function ($query) use ($column, $locale, $value) {
+                $query->where($column, 'LIKE', "%\"{$locale}\": \"{$value}\"%")
+                    ->orWhere($column, 'LIKE', "%\"{$locale}\":\"{$value}\"%");
+            });
     }
 
     /**

tests/TestCase.php

@@ -66,7 +66,7 @@ protected function setupDatabase()
 
         $this->app['db']->getSchemaBuilder()->create($this->table, function (Blueprint $table) {
             $table->increments('id');
-            $table->text('slug')->nullable();
+            $table->json('slug')->nullable();
             $table->text('name')->nullable();
             $table->string('other_field')->nullable();
         });