Multi Field DisplayField...

Hello all,

This has probably been asked a couple of times allready. I would like
to use multiple fields to generate the labels in a drop down list box.
I searched the list, and this search came up with several different
strategies to achieve this. I tried to implement one of these
strategies but ran in to a problem... I hope someone can help me.

I have the following models:

Member
- id
- login
- last_name
- first_name
-member_type_id

MemberType
- id
- title

Event
- id
- description
- date

Registrations
- id
- event_id
- member_id

I made all the models, controllers and views using the cake bake
console. That gave me allready a lot of funtionality. It's great fun
working with something that does the boring parts for you and allows
you to reach the stage in your project where it becomes more
interesting so fast. This is my first attempt at something with
CakePHP btw, and the main purpose of the application I'm building is
to allow me to learn how to use it. But basically it is an event
registration system for our club.

In the schaffolds that were build the drop down list boxes all jsut
displayed numerical IDs. I understood that this was because I didn't
use "name" or "title" for the database field that has the most
meaningfull description. I solved this by setting $displayField in the
model to something usefull. So in the "Member" model I set
$displayField initalls to "login".

But I would be nice if I could use "first_name last_name" for the
lables in the member_id drop down box on my event registration form. I
found a possible solution here:
http://bakery.cakephp.org/articles/view/multiple-display-field-3
And I decided to use the Set::Combine suggestion made by Barry.

So in the Registrations controller I replaced:

$members = $this->Registration->Member->find('list');

with:

$members = $this->Registration->Member->find('all');
$members = Set::Combine(
$members,
'{n}.Member.ID',
array(
'{0}, {1}',
'{n}.Member.last_name',
'{n}.Member.first_name'
)
);

The weird thing is that with this code the drop down list box that
gets generate for member_id now, in stead of containing a list of al
"login" values, now contained only one value. The last_name +
first_name of the (alphabetically) last member in the table. So the
result of my Set::Combine seems to be an array with just one item.

Now why is that?

Hope someon can help me here.

Krist

--
krist.vanbesien@gmail.com
krist@vanbesien.org
Bremgarten b. Bern, Switzerland
--
A: It reverses the normal flow of conversation.
Q: What's wrong with top-posting?
A: Top-posting.
Q: What's the biggest scourge on plain text email discussions?

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