Refactor UniqueTranslationValidator

Author: ivanvermeyen

src/UniqueTranslationValidator.php

@@ -2,6 +2,8 @@
 
 namespace CodeZero\UniqueTranslation;
 
+use DB;
+
 class UniqueTranslationValidator
 {
     /**
@@ -15,23 +17,82 @@ class UniqueTranslationValidator
      * @return bool
      */
     public function validate($attribute, $value, $parameters, $validator) {
+        $attributeParts = explode('.', $attribute);
+        $attribute = $attributeParts[0];
+        $locale = $attributeParts[1] ?? app()->getLocale();
         $table = $parameters[0] ?? null;
         $column = $parameters[1] ?? null;
         $ignoreValue = $parameters[2] ?? null;
-        $ignoreColumn = $parameters[3] ?? 'id';
-
-        $rule = new UniqueTranslationRule($table, $column);
-
-        if ($ignoreValue !== null) {
-            $rule->ignore($ignoreValue, $ignoreColumn);
-        }
+        $ignoreColumn = $parameters[3] ?? null;
 
-        $passes = $rule->passes($attribute, $value);
+        $isUnique = $this->isUnique($attribute, $locale, $value, $table, $column, $ignoreValue, $ignoreColumn);
 
         $validator->setCustomMessages([
-            'unique_translation' => $rule->message(),
+            'unique_translation' => trans('validation.unique'),
         ]);
 
-        return $passes;
+        return $isUnique;
+    }
+
+    /**
+     * Check if a translation is unique.
+     *
+     * @param string $attribute
+     * @param string $locale
+     * @param mixed $value
+     * @param string $table
+     * @param string|null $column
+     * @param mixed $ignoreValue
+     * @param string|null $ignoreColumn
+     *
+     * @return bool
+     */
+    protected function isUnique($attribute, $locale, $value, $table, $column = null, $ignoreValue = null, $ignoreColumn = null)
+    {
+        $column = $column ?: $attribute;
+
+        $query = $this->findTranslation($table, $column, $locale, $value);
+        $query = $this->ignore($query, $ignoreColumn, $ignoreValue);
+
+        $isUnique = $query->count() === 0;
+
+        return $isUnique;
+    }
+
+    /**
+     * Find the given translated value in the database.
+     *
+     * @param string $table
+     * @param string $column
+     * @param string $locale
+     * @param mixed $value
+     *
+     * @return \Illuminate\Database\Query\Builder
+     */
+    protected function findTranslation($table, $column, $locale, $value)
+    {
+        return DB::table($table)->where("{$column}->{$locale}", '=', $value);
+    }
+
+    /**
+     * Ignore the column with the given value.
+     *
+     * @param \Illuminate\Database\Query\Builder $query
+     * @param string|null $column
+     * @param mixed $value
+     *
+     * @return \Illuminate\Database\Query\Builder
+     */
+    protected function ignore($query, $column = null, $value = null)
+    {
+        if ($value !== null && $column === null) {
+            $column = 'id';
+        }
+
+        if ($column !== null) {
+            $query = $query->where($column, '!=', $value);
+        }
+
+        return $query;
     }
 }