adding app/library/Validation/Validator/Alpha.php

app/library/Validation/Validator/Alpha.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace Validation\Validator;
+
+use Phalcon\Validation\Message;
+use Phalcon\Validation\Validator as BaseValidator;
+
+/**
+ * The same as the default Alpha validator shipped with phalcon.
+ * But this validator supports the option "allowSpace" that also
+ * allow whitespaces.
+ *
+ * @package Validation\Validator
+ */
+class Alpha extends BaseValidator
+{
+    /**
+     * Executes the validation
+     *
+     * @param mixed $validation
+     * @param string $attribute
+     * @return bool
+     */
+    public function validate(\Phalcon\Validation $validation, $attribute)
+    {
+        $allowSpace = $this->getOption('allowSpace', false);
+
+        $charlist = '[:alpha:]';
+        if ($allowSpace) {
+            $charlist .= '[:space:]';
+        }
+
+        $value = $validation->getValue($attribute);
+
+        if (preg_match("/[^{$charlist}]/imu", $value)) {
+
+            $label = $this->getOption('label');
+            if (empty($label)) {
+                $label = $validation->getLabel($attribute);
+            }
+
+            $message = $this->getOption('message');
+            if (empty($message)) {
+                $message = $validation->getDefaultMessage('Alpha');
+            }
+
+            //var_dump($message);exit;
+
+            $replace = [ ":field" => $label ];
+
+            $code = $this->getOption("code");
+            if (is_array($code)) {
+                $code = $code[$attribute];
+            }
+
+            $message = str_replace(array_keys($replace), $replace, $message);
+
+            $msg = new Message($message, $attribute, "Alpha", $code);
+            $validation->appendMessage($msg);
+
+            return false;
+        }
+
+        return true;
+    }
+}