NEW DBField validation

_config/model.yml

@@ -20,6 +20,8 @@ SilverStripe\Core\Injector\Injector:
     class: SilverStripe\ORM\FieldType\DBDecimal
   Double:
     class: SilverStripe\ORM\FieldType\DBDouble
+  Email:
+    class: SilverStripe\ORM\FieldType\DBEmail
   Enum:
     class: SilverStripe\ORM\FieldType\DBEnum
   Float:

src/Forms/EmailField.php

@@ -2,6 +2,9 @@
 
 namespace SilverStripe\Forms;
 
+use SilverStripe\Core\Validation\ConstraintValidator;
+use Symfony\Component\Validator\Constraints;
+
 /**
  * Text input field with validation for correct email format according to RFC 2822.
  */
@@ -18,32 +21,26 @@ public function Type()
     }
 
     /**
-     * Validates for RFC 2822 compliant email addresses.
-     *
-     * @see http://www.regular-expressions.info/email.html
-     * @see http://www.ietf.org/rfc/rfc2822.txt
-     *
      * @param Validator $validator
      *
      * @return string
      */
     public function validate($validator)
     {
-        $result = true;
         $this->value = trim($this->value ?? '');
 
-        $pattern = '^[a-z0-9!#$%&\'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&\'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$';
-
-        // Escape delimiter characters.
-        $safePattern = str_replace('/', '\\/', $pattern ?? '');
+        $result = true;
+        $message = _t('SilverStripe\\Forms\\EmailField.VALIDATION', 'Please enter an email address');
+        $validationResult = ConstraintValidator::validate(
+            $this->value,
+            new Constraints\Email(message: $message)
+        );
 
-        if ($this->value && !preg_match('/' . $safePattern . '/i', $this->value ?? '')) {
+        if (!$validationResult->isValid()) {
             $validator->validationError(
                 $this->name,
-                _t('SilverStripe\\Forms\\EmailField.VALIDATION', 'Please enter an email address'),
-                'validation'
+                $validationResult->getMessages()[0]['message'],
             );
-
             $result = false;
         }
 

src/ORM/DataObject.php

@@ -1230,7 +1230,12 @@ public function forceChange()
     public function validate()
     {
         $result = ValidationResult::create();
-        $this->extend('updateValidate', $result);
+        $specs = static::getSchema()->fieldSpecs(static::class);
+        foreach (array_keys($specs) as $fieldName) {
+            $dbField = $this->dbObject($fieldName);
+            $result->combineAnd($dbField->validate());
+        }
+        $this->extend('updateValidate', $validationResult);
         return $result;
     }
 

src/ORM/FieldType/DBEmail.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace SilverStripe\ORM\FieldType;
+
+use SilverStripe\ORM\FieldType\DBVarchar;
+use Symfony\Component\Validator\Constraints;
+use SilverStripe\Core\Validation\ConstraintValidator;
+use SilverStripe\Core\Validation\ValidationResult;
+use SilverStripe\Forms\EmailField;
+use SilverStripe\Forms\NullableField;
+use SilverStripe\Forms\FormField;
+
+class DBEmail extends DBVarchar
+{
+    public function validate(): ValidationResult
+    {
+        // https://symfony.com/doc/current/reference/constraints/Email.html
+        $result = parent::validate();
+        $message = _t('SilverStripe\\Forms\\EmailField.VALIDATION', 'Please enter an email address');
+        $result = $result->combineAnd(
+            ConstraintValidator::validate(
+                $this->getValue(),
+                new Constraints\Email(message: $message),
+                $this->getName()
+            )
+        );
+        $this->extend('updateValidate', $result);
+        return $result;
+    }
+
+    public function scaffoldFormField(?string $title = null, array $params = []): ?FormField
+    {
+        // Set field with appropriate size
+        $field = EmailField::create($this->name, $title);
+        $field->setMaxLength($this->getSize());
+
+        // Allow the user to select if it's null instead of automatically assuming empty string is
+        if (!$this->getNullifyEmpty()) {
+            return NullableField::create($field);
+        }
+        return $field;
+    }
+}

src/ORM/FieldType/DBField.php

@@ -10,6 +10,8 @@
 use SilverStripe\ORM\Filters\SearchFilter;
 use SilverStripe\ORM\Queries\SQLSelect;
 use SilverStripe\Model\ModelData;
+use SilverStripe\Core\Validation\ValidationResult;
+use Symfony\Component\Validator\Constraints\Valid;
 
 /**
  * Single field in the database.
@@ -43,6 +45,10 @@
  */
 abstract class DBField extends ModelData implements DBIndexable
 {
+    public function validate(): ValidationResult
+    {
+        return ValidationResult::create();
+    }
 
     /**
      * Raw value of this field