1 files changed, 45 insertions, 0 deletions
diff --git a/vendor/ipl/validator/src/CallbackValidator.php b/vendor/ipl/validator/src/CallbackValidator.php
new file mode 100644
index 0000000..611a45e
--- /dev/null
+++ b/vendor/ipl/validator/src/CallbackValidator.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace ipl\Validator;
+
+/**
+ * Validator that uses a callback for the actual validation
+ *
+ * # Example Usage
+ * ```
+ * $dedup = new CallbackValidator(function ($value, CallbackValidator $validator) {
+ *     if (already_exists_in_database($value)) {
+ *         $validator->addMessage('Record already exists in database');
+ *
+ *         return false;
+ *     }
+ *
+ *     return true;
+ * });
+ *
+ * $dedup->isValid($id);
+ * ```
+ */
+class CallbackValidator extends BaseValidator
+{
+    /** @var callable Validation callback */
+    protected $callback;
+
+    /**
+     * Create a new callback validator
+     *
+     * @param callable $callback Validation callback
+     */
+    public function __construct(callable $callback)
+    {
+        $this->callback = $callback;
+    }
+
+    public function isValid($value)
+    {
+        // Multiple isValid() calls must not stack validation messages
+        $this->clearMessages();
+
+        return call_user_func($this->callback, $value, $this);
+    }
+}