Escape backslashes to work with LIKE queries (#13)

Author: ivanvermeyen

src/UniqueTranslationValidator.php

@@ -229,6 +229,10 @@ protected function isUnique($value, $name, $locale, $parameters)
      */
     protected function findTranslation($connection, $table, $column, $locale, $value)
     {
+        // Properly escape backslashes to work with LIKE queries...
+        // See: https://stackoverflow.com/questions/14926386/how-to-search-for-slash-in-mysql-and-why-escaping-not-required-for-wher
+        $value = str_replace('\\', '\\\\\\\\', $value);
+
         return DB::connection($connection)->table($table)
             ->where(function ($query) use ($column, $locale, $value) {
                 $query->where($column, 'LIKE', "%\"{$locale}\": \"{$value}\"%")

tests/UniqueTranslationTest.php

@@ -265,4 +265,40 @@ public function it_validates_nova_translations()
 
         $this->assertTrue($validation->passes());
     }
+
+    /** @test */
+    public function it_handles_backslashes_in_values()
+    {
+        Model::create([
+            'slug' => ['en' => '\existing-slug-en', 'nl' => '\existing-slug-nl'],
+            'name' => ['en' => '\existing-name-en', 'nl' => '\existing-name-nl'],
+        ]);
+
+        $rules = [
+            'slug' => "{$this->rule}:{$this->table}",
+            'name' => UniqueTranslationRule::for($this->table),
+        ];
+
+        // The following validation fails, because the
+        // current locale is "en", so we actually set
+        // ['en' => '\existing-slug-en'] etc.
+
+        $validation = Validator::make([
+            'slug' => '\existing-slug-en',
+            'name' => '\existing-name-en',
+        ], $rules);
+
+        $this->assertTrue($validation->fails());
+
+        // The following validation passes, because the
+        // current locale is "en", so we actually set
+        // ['en' => '\existing-slug-nl'] etc.
+
+        $validation = Validator::make([
+            'slug' => '\existing-slug-nl',
+            'name' => '\existing-name-nl',
+        ], $rules);
+
+        $this->assertTrue($validation->passes());
+    }
 }