I think the line of documentation in the FAPI reference that says all
buttons must have the same #name should be updated. They all have
#name='op' by default. It is perfectly legitimate to have any particular
button use a different #name, and for different buttons on the same form
to have different #name. For $form_state['clicked_button'] to be set
correctly, all buttons must have a unique #name/#value combination, so
if they need the same #value, then different #name is perfectly
acceptable. At least, that's my opinion. Perhaps someone on this list
might know why the FAPI reference says otherwise.
Richard Morse wrote:
On Jun 23, 2010, at 11:37 AM, Adam Gregory wrote:
Actually all buttons in a Drupal form have the name "op" so that you can
easily determine which button was pressed in the submit function. i.e. if
($op = 'blah) or switch ($op).
If you are using the Drupal Ahah framework for this then your submit
function should handle it. But since all your buttons are titled Remove,
what you can do is use $form_state['clicked_button']['#id'] to determine
which button was clicked in your submit function. As #id is built of the
array key you give the element in the $form variable.
I know that by default they are all named 'op'. This is my problem; I cannot
distinguish the buttons by their '#value', because it is always the same. I'm
solving this by setting the '#name' to allow me to determine precisely which
button was clicked. If I don't set '#name', then *regardless* of which button I
press, the 'clicked_button' structure in the $form_state corresponds to the
last button of the same '#value' added to the form. Part of the awkwardness
here is that HTML doesn't allow you to display some text in a button while
having a different value.
Ricky
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