how to hide a field when adding content through node/add for a content type?

Question

I have 7 fields in a content type and the last field value, I am updating programmatically. So it should not be displayed when adding content to it. What should I do.

Answer 1

The way I prefer is to use Computed Field module. Not only it creates a field that's not editable for users, it also takes care about hooks, cache, and lets you simply choose recalculation strategy (on save / on display). All you really need to care with it, is the very code that calculates field's value.

Answer 2

Hope this will help field_hidden

Field Hidden defines five hidden field types

text, long text integer, decimal, floating-point Hidden in forms Hidden fields are always rendered as elements in forms.

Answer 3

Go and edit the node content type and in Field Settings change the Field Visibility and Permission.

Just remove the edit permission to any role.

Answer 4

You can add a field in your form programmatically as follows :

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

 if ($form_id == 'your_form_id') {

$field_hidden_value = 'enter your computed value here' ;
   $form['field_hidden'] = array(
      '#type' => 'value',
      '#value' => $field_hidden_value,
   );

  }
}

Answer 5

If you are looking to avoid creating a custom module/using code:

• Install Rules (https://www.drupal.org/project/rules)
• Install Rules Form Support (https://www.drupal.org/project/rules_forms)

Then:

• Setup a new rule with the event: Begin [your form name] being built
• Setup a new action: Rules Forms > Set an attribute of an element in the form
• Set the attribute #access to false

The form element will now be hidden.

If you are trying to avoid creating a custom module, this does the trick.