I’m new to developing Drupal 7 modules, and I can’t figure out why my custom module’s form data is not stored in my database’s table called ‘media_skins‘.

I followed the info explained in Creating modules – a tutorial: Drupal 7.x but I can’t get it working. What’s wrong with my code?

Here’s my code:

function media_skins_menu() {   $items = array();   $items['admin/config/content/media_skins'] = array(     'title' => 'Media Skins',     'description' => 'Configuration for Skins module',     'page callback' => 'drupal_get_form',     'page arguments' => array('media_skins_form'),     'access arguments' => array('access administration pages'),     'type' => MENU_NORMAL_ITEM,   );    return $items; }  function media_skins_form($form, &$form_state) {    $form['media_skins_test'] = array(     '#type' => 'textfield',     '#title' => t('Test field'),     '#size' => 20,     '#maxlength' => 20,     '#description' => t('Test info for the field.'),     '#required' => FALSE,   );   return system_settings_form($form); }  function media_skins_form_validate($form, &$form_state) {     // For now, I will no validate anything }  function media_skins_form_submit($form, &$form_state) {   $form = db_insert('media_skins')->fields(     array(       'start_date' => $form_state['values']['media_skins_test'],           )   )   ->execute();   drupal_set_message('Data stored in database successfully');  } 

Any help will be very appreciated.

EDITING THE SCENARIO

After reading your comments, I tried the following, but I get “Unexpected error, try it again”:

function media_skins_form($form, &$form_state) {   $form['media_skins_test'] = array(     '#type' => 'textfield',     '#title' => t('Test field'),     '#size' => 20,     '#maxlength' => 20,     '#description' => t('Test info for the field.'),     '#required' => FALSE,   );   $form['submit'] = array(     '#type' => 'submit',     '#value' => t('Enviar'),   );   return $form; }