[drupal-devel] E_ALL: which way to correct each error notice?

Gabor Hojtsy gabor at hojtsy.hu
Sat Oct 15 12:41:34 UTC 2005

> An example of the error notice we get is when going to 
> admin/settings:
>    notice: Undefined index:  #attributes in 
>      includes/form.inc on line 54.
>    notice: Undefined index:  class in 
>      includes/form.inc on line 54.
> the line is part of:
>    function drupal_get_form ($form_id, 
>       &$form, $callback = NULL)
> which is called in this case from system.module from
>    function system_view_general()
> Now I can solve this problem in by declaring the array this 
> way:
>     $form['#attributes']['class'] = array ();
> I can add this line 
> 1- either within the function drupal_get_form in 
> includes/form.inc
> 2- or within the function system_view_general in 
> modules/system.module.
> Which way would be better/correct?

Better is to check for the existance of the form item before using it,
not creating the item in every possible place. Since contributed code
can result in similar errors.

> Another similar example:
>    notice: Undefined index:  #built in 
>       includes/form.inc on line 180.
> should I change in the said line:
>    if ($form['#built'] == TRUE) {
> to 
>    if (isset($form['#built']) AND $form['#built'] == TRUE) {
> or should I go back to where the function was called from, 
> and declare the array there?

I don't know who have written "if ($form['#built'] == TRUE)", but AFAIK,
this is the very same as "if ($form['#built'])" (since it is casted to a
boolean either way. So shorter is to use "if (isset($form['#built']) &&


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