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How to create or manage configuration form in Drupal 8

Create configuration form

create path in routing.yml, here my module name is "mymodule" so I am using it, you can use your module name.

mymodule.Myfiguration:
  path: 'myconf'
  defaults:
    _form: '\Drupal\mymodule\Form\MyConfigurationForm'	// I have created form "MyConfigurationForm.php" 
    _title: 'My API Configuration'
  requirements:
    _permission: 'mymodule dashboard_admin'		// this is…
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I want to know IP Address of my website so can who is visiting or I want to location where is website visited using IP address.

Soln,

Add this code at top like other header

use Symfony\Component\HttpFoundation;

Use this code to get IP Address

\Drupal::request()->getClientIp()

I was doing integrate razorpay payment gateway in Drupal 8 using custom code but we getting error like “Class 'Razorpay\Api\Api' not found” because razorpay library is not installed on server so follow this step to install using putty to run composer command.

In putty enter Server IP and port click on open

Then you… Read More...

If you want to create template for views page like page.tpl.twig so you follow these step.

1. Create copy of page.tpl.twig
2. If your views machine name is ‘myblog’ then rename file as ‘page--myblog’.html.twig’ and upload in your themes folder

After clear cache current template will work for this views instead of page.tpl.twig.

$language = \Drupal::languageManager()->getCurrentLanguage()->getId();
$user = \Drupal\user\Entity\User::create();

// Mandatory.
$user->setPassword('password');
$user->enforceIsNew();
$user->setEmail('email');
$user->setUsername('user_name');

// Optional.
$user->set('init', 'email');
$user->set('langcode', $language);
$user->set('preferred_langcode', $language);
$user->set('preferred_admin_langcode', $language);
$user->set('setting_name', 'setting_value');
$user->addRole('rid');
$user->…
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Code to query for getting node according to field condition in DRUPAL 8

$query = \Drupal::entityQuery('node')
  ->condition('status', NODE_PUBLISHED)
  ->condition('type', 'custom_type');
$and = $query->andConditionGroup();
$and->condition('custom_taxonomy', 2);
$query->condition($and);
$and = $query->andConditionGroup();
$and->condition('custom_taxonomy', 8);
$query->condition($and);
$result = $query->execute();

Set current date in custom form element in DRUPAL8

Add this line at top

 use Drupal\Core\Datetime\DrupalDateTime; 

Add the following code to your form

function HOOK_form_alter(…
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If you have already created a webform then you can follow thi step
1. Open this url /admin/structure/webform (Structure -> Webform)
2. Click on "Build" in OPERATIONS column

3. Click on "+Add element" button, there will be seen a list form element

4. You can select Captcha from available list.

global $user;
$nid = 4; //nid is the node id of your webform.

$node = node_load($nid); 

The values to save. Take case about array indexes! (see below)

$data = array(
    '1' => array('0' => $type),
    '2' => array('0' => $method),
    '5' => array('0' => $volume),
    '6' => array('0' => $comment),
    '7' => array('0' => $phone),
    '8' => array('0' => $length)
);

$submission = (object) array(
    'nid' => $nid,
    'uid…
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In your theme's template.php file, you could add something like

/**
 * Implements hook_preprocess_html
 */
function THEME_NAME_preprocess_html(&$vars) {

  if (current_path() == 'my/custom/path') {
    $description = array(        
      '#type' => 'html_tag',
      '#tag' => 'meta',
      '#attributes' => array(
        'name' => 'description',
        'content' => 'here all description goes',
      )
    );
    drupal_add_html_head($description, 'description');
  }

}