Hi i had created 1 content type. In this content type I have created a field called courses of type field collections. In the field collections I have added 1 fields of type checkbox which I want to be enabled by default. there is option to do by configuration. But I want to do it by coding . How to do?


You can this using Drupal's Form API. You'll have to alter the form and set the value.

function modulename_form_alter(&$form, &$form_state, $form_id){

        case "your_form":

           $form['cbs'] = array(
           '#type' => 'checkboxes',
           '#options' => array(1 => "One", 2 => "Two", 3 => "Three"),
           '#default_value' => array(1, 3),


To know more about altering form check the below links:

  1. http://befused.com/drupal/form-alter
  2. http://themery.com/dgd7/advanced-theming/forms/with-alter-hooks


If field collections try using widget_form_alter:

function my_module_field_widget_form_alter(&$element, &$form_state, $context) {

 if ("field_my_field_collection" == $element['#bundle']) {

    if ("field_my_field_collection" == $element['#field_name']) {

         //do your work here

There are two related questions in the following links, which may help you:

  1. Question One.
  2. Question Two.
  • Hii, it is working for fields of that content type. But as I mentioned I Created 1 course field of type field collection.in the field collection I have added 1 checkbox. That checkbox I want to be enabled by default. Jun 14 '17 at 10:16
  • @shailjaranjan I have added further details.
    – esafwan
    Jun 14 '17 at 15:29
if($form_id == 'course_page_node_form') {   
$form['field_course_tabs'][LANGUAGE_NONE][0]['field_enable_in_tab'][LANGUAGE_NONE]['#default_value'] = 1;   

} this one worked for me.

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