Ajax Form

app/docroot/modules/custom/mymodule/mymodule.install

@@ -4,39 +4,42 @@
  * Implements hook_schema().
  */
 function mymodule_schema() {
-  $schema['aaaa'] = array(                   // Название таблицы
-    'description' => 'Database example',            // Описание таблицы
-    'fields' => array(                              // Массив с колонками таблицы
-      'id' => array(                                // Название колонки
-        'description' => 'ID',                      // Описание колонки
-        'type' => 'serial',                         // Тип данных
-        'unsigned' => TRUE,                         // Unsigned, по умолчанию FALSE
-        'not null' => TRUE,                         // Проверка на 0
-      ),
-      'uid' => array(
-        'description' => 'UID user',
-        'type' => 'int',
+  $schema['AAA_custom_table'] = array(
+    'description' => 'A table to store simple data',
+    'fields' => array(
+      'id' => array(
+        'description' => 'Holds the id value',
+        'type' => 'serial',
         'unsigned' => TRUE,
         'not null' => TRUE,
-        'default' => 0,                             // Значение по умолчанию
       ),
-      'text' => array(
-        'description' => 'Text',
+      'name' => array(
+        'description' => 'Holds the name value',
         'type' => 'varchar',
-        'length' => 255,
+        'length' => '255',
+        'not null' => TRUE,
+      ),
+      'email' => array(
+        'description' => 'Holds the name value',
+        'type' => 'varchar',
+        'length' => '255',
+        'not null' => TRUE,
+      ),
+      'url' => array(
+        'description' => 'Holds the name value',
+        'type' => 'varchar',
+        'length' => '255',
         'not null' => TRUE,
-        'default' => '',
       ),
     ),
     'primary key' => array('id'),
   );
-
   return $schema;
 }
 
 /**
  * Implements hook_uninstall().
  */
-/*function mymodule_uninstall() {
-  \Drupal::state()->delete('mymodule.mymodule');
-}*/
+function mymodule_uninstall() {
+  \Drupal::state()->delete('mymodule.AAA_custom_table');
+}

app/docroot/modules/custom/mymodule/mymodule.module

@@ -75,12 +75,19 @@ function mymodule_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_
 /**
  * Implements hook_node_view().
  */
-function mymodule_node_view(array &$build, \Drupal\Core\Entity\EntityInterface $entity, \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display, $view_mode) {
+/*function mymodule_node_view(array &$build, \Drupal\Core\Entity\EntityInterface $entity, \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display, $view_mode) {
   $bundle = $entity->bundle();
   if ($bundle == 'people') {
     $build['#cache']['contexts'][] = 'url.query_args';
     $entity->save();
   }
-}
-
+}*/
 
+/**
+ * Implements hook_preprocess().
+ */
+function mymodule_preprocess(&$variables, $hook) {
+  if ($hook == 'node') {
+    $variables["#cache"]["contexts"][] = "url.query_args";
+  }
+}

app/docroot/modules/custom/mymodule/src/Form/AjaxForm.php

@@ -2,6 +2,9 @@
 
 namespace Drupal\mymodule\Form;
 
+use Drupal\Core\Ajax\AjaxResponse;
+use Drupal\Core\Ajax\CssCommand;
+use Drupal\Core\Ajax\HtmlCommand;
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormStateInterface;
 
@@ -14,29 +17,99 @@ class AjaxForm extends FormBase {
     $form['name'] = array(
       '#type' => 'textfield',
       '#title' => 'Name',
-      '#required' => TRUE
+      '#required' => TRUE,
+      '#prefix' => '',
+      '#suffix' => '<div class="name-validation-message"></div>',
     );
 
     $form['email'] = array(
       '#type' => 'email',
       '#title' => 'Email',
-      '#required' => TRUE
+      '#required' => TRUE,
+      '#prefix' => '',
+      '#suffix' => '<div class="email-validation-message"></div>',
+      '#ajax' => [
+      'callback' => [$this, 'validateEmailCallbackAjax'],
+      'event' => 'change',
+      'wrapper' => 'edit-email',
+    ],
     );
 
     $form['url'] = array(
       '#type' => 'textfield',
       '#title' => 'URL',
-      '#required' => TRUE
+      '#required' => TRUE,
+      '#prefix' => '',
+      '#suffix' => '<div class="url-validation-message"></div>',
+      '#ajax' => [
+        'callback' => [$this, 'validateUrlCallbackAjax'],
+        'event' => 'change',
+        'wrapper' => 'edit-email',
+      ],
     );
 
     $form['submit'] = array(
       '#type' => 'submit',
-      '#value' => 'Import'
+      '#value' => 'Click',
     );
     return $form;
   }
 
+  public function validateForm(array &$form, FormStateInterface $form_state) {
+
+
+    $url = $form_state->getValue('url');
+
+    $regexp = '/^(https|http):\/\//';
+    $checkHttp = (bool)preg_match($regexp, $url);
+    if ($checkHttp) {
+      $url[4] == 's' ? $httpOrHttps = 8 : $httpOrHttps = 7;
+      $checkHttp ? $url = substr($url, $httpOrHttps) : '';
+    }
+
+    $regexp = '/^www./';
+    $checkWww = ((bool)preg_match($regexp, $url));
+    if ($checkWww) {
+      $url = substr($url, 4);
+    }
+
+    $regexp = '/^([a-z0-9]*.[rр][uф])/';
+    $checkUrl = (bool)preg_match($regexp, $url);
+
+    $url = explode('.',$url);
+    $url = $url[0] . '.' . $url[1];
+
+  }
+
   public function submitForm(array &$form, FormStateInterface $form_state) {
+    $query = \Drupal::database()->insert('AAA_custom_table');
+    $query->fields([
+      'name' => $form_state->getValue('name'),
+      'email' => $form_state->getValue('email'),
+      'url' => $form_state->getValue('url'),
+    ]);
+    $query->execute();
+  }
+
+  public function validateEmailCallbackAjax(array &$form, FormStateInterface $form_state) {
+    $response = new AjaxResponse();
+    $email = $form_state->getValue('email');
+    $email_valid = filter_var($email, FILTER_VALIDATE_EMAIL);
+    if (!$email_valid and !empty($email)) {
+      $response->addCommand(new HtmlCommand('.email-validation-message', 'Введен не корректный email'));
+      $response->addCommand(new CssCommand('.email-validation-message', ['color' => 'red']));
+      $response->addCommand(new CssCommand('#edit-email', ['border' => '1px solid red']));
+    } else {
+      $response->addCommand(new HtmlCommand('.email-validation-message', ''));
+      $response->addCommand(new CssCommand('#edit-email', ['border' => '']));
+    }
+    return $response;
+  }
 
+  public function validateUrlCallbackAjax(array &$form, FormStateInterface $formState) {
+    $response = new AjaxResponse();
+    $response->addCommand(new HtmlCommand('.url-validation-message', 'ZXC'));
+    $response->addCommand(new CssCommand('#edit-url', ['border' => '1px solid red']));
+    return $response;
   }
 }