[kenshicu]

in add/edit form I need to put a selectbox or textbox (field4), which does not exist in the database, so I put:

$crud->fields('field1','field2','field3','field4');

but to save the form, by clicking the button (Save and go back to list), the system does nothing, does not save, does not move. :(

[victor]

does the save button works?

[victor]

I think you should use callback functions for that. for example 'callback before insert'.
your code doesn't works because the field4 doesn't exist in your table.
you need use your extra data before inserting and then delete it.

[kenshicu]

the Save button does not work when I add the field4. I guess the error is to try to save the field4 in the table, where it does not exist.

Perhaps using a 'callback before insert' work, if I remove the field4 of $post_array, but I do not know if this can be done.

[victor]

can you explain what you need in more details?

[kenshicu]

I need to use a field4 in add/edit form to use as parent selectbox using 'Dependent dropdown' and that I have it, but it will not let me save, because guess who attempts to keep the field4 in the database.
I think the solution is in a 'callback before insert' it processes the array $post_array, what I want is to remove the field4 of $post_array with something like this:
 

function _test_callback_before_insert($post_array) {
unset($post_array['field4']);
  return $post_array;
}

but it does not work.

as knowing the content of $post_array?

[kenshicu]

any idea with this?