NEW Create PhoneField

src/Form/PhoneField.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace SilverStripe\LinkField\Form;
+
+use SilverStripe\Forms\TextField;
+use SilverStripe\Forms\Validator;
+
+/**
+ * Text input field with validation for correct email format according to RFC 2822.
+ */
+class PhoneField extends TextField
+{
+    /**
+     * This needs to be not surronded by regex delimiters so that it works on the frontend
+     */
+    private const RX = '^[()\- 0-9]+$';
+
+    /**
+     * This is used for the <input> element type="tel" attribute
+     * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/tel
+     */
+    protected $inputType = 'tel';
+
+    /**
+     * This is added as a classname to the <input> element
+     */
+    public function Type()
+    {
+        return 'phone text';
+    }
+
+    /**
+     * @param Validator $validator
+     *
+     * @return string
+     */
+    public function validate($validator)
+    {
+        $result = true;
+        $this->value = trim($this->value ?? '');
+        if ($this->value && !preg_match('#' . self::RX . '#', $this->value)) {
+            $validator->validationError(
+                $this->name,
+                _t(__CLASS__ . '.VALIDATION', 'Please entire a valid phone number'),
+                'validation'
+            );
+            $result = false;
+        }
+        return $this->extendValidationResult($result, $validator);
+    }
+
+    /**
+     * This is passed to the frontent via FormField::getSchemaValidation()
+     * and used in Validator.js
+     */
+    public function getSchemaValidation()
+    {
+        $rules = parent::getSchemaValidation();
+        $rules['regex'] = ['pattern' => self::RX];
+        return $rules;
+    }
+}