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Forms in a Custom Controller


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10 Posts   2812 Views

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tbarho

Community Member, 41 Posts

8 January 2010 at 6:56am

Hello all!

I'm trying to get a Form into a custom controller. I've used the post at http://doc.silverstripe.org/doku.php?id=controller to play around with the custom controller, and now I'm trying to get a form into that page, but it just shows up blank, and I'm not understanding why. Here's a sample of the code I'm using in FastFood.php

class FastFood_Controller extends Controller {
function order($arguments) {
print_r($arguments);
}

function newOrder() {
   
   $fields = singleton('SomeObject')->getFrontendFields();
      
      $actions = new FieldSet(
         new FormAction('someAction', 'Submit')
      );
      
      
      $form = new Form(
         $this,
         'Form',
         $fields,
         $actions
      );
      
      return $form;

}
}

Any ideas where I'm going wrong? Thanks!

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Willr

Forum Moderator, 5513 Posts

8 January 2010 at 1:19pm

The second parameter to the Form object should be the name of the current form function. Currently you have 'Form' whereas your function is called newOrder.

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tbarho

Community Member, 41 Posts

9 January 2010 at 7:50am

Ok, changed the code to

class FastFood_Controller extends Controller {
function order($arguments) {
print_r($arguments);
}

function newOrder() {
   
   $fields = singleton('Reference')->getFrontendFields();
      
      $actions = new FieldSet(
         new FormAction('someAction', 'Submit')
      );
      
      
      $form = new Form(
         $this,
         'newOrder',
         $fields,
         $actions
      );
      
      return $form->__construct($this, "MyForm", $fields, $actions);

}
}

and still getting a blank page. Any thoughts?

Avatar
Willr

Forum Moderator, 5513 Posts

9 January 2010 at 10:19am

Edited: 09/01/2010 10:20am

What are you trying to do with this code

$form = new Form(
$this,
'newOrder',
$fields,
$actions
);

return $form->__construct($this, "MyForm", $fields, $actions);

The constructor is called when you create the new Form. You should be just returning the $form you created above that line like return $form;

Also note you have a form action called 'someAction' but that code you posted doesn't have a someAction(). You will need to create a function (if you haven't already) like

function someAction($data, $form) {
// do stuff
}

Avatar
tbarho

Community Member, 41 Posts

9 January 2010 at 10:41am

Edited: 09/01/2010 10:41am

Yeah, I'm basically just trying to get the controller to spit out a form on the page. I don't care if it does anything yet, I just want to get the form displayed, which I can't seem to do. All I can get so far is a blank page, even if I try

return $form;

Avatar
Willr

Forum Moderator, 5513 Posts

9 January 2010 at 10:47am

Have you got display_errors turned on in your php.ini file. Or check the server logs for an error. Could be a typo with the code. If you want to see where in the code its breaking you could try inserting a die('Hi'); statement at the top of the form function and check that it appears, then move it down till you have it disappear.

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tbarho

Community Member, 41 Posts

13 January 2010 at 10:32am

Edited: 13/01/2010 10:34am

So did the die("hi") thing, and it made it through the entire newOrder() method. Here's the full code I have now at FastFood.php:

class FastFood_Controller extends Controller {
function order($arguments) {
print_r($arguments);
}

function newOrder() {
   
   $fields = singleton('Reference')->getFrontendFields();
      
      
   
   
      $actions = new FieldSet(
         new FormAction('someAction', 'Submit')
      );
      
      
      
      $form = new Form(
         $this,
         'newOrder',
         $fields,
         $actions
      );
      
      
      
      return $form;

}

function someAction($data, $form) {

   die("hi");
}
}

And also my _config.php changes:

Director::addRules(50, array('fastfood/$Action/$ID/$Name' => 'FastFood_Controller'));


All I see on the page is "hi", which is weird, because that someAction() method shouldn't be called yet, right? Could it be that since I'm not inheriting from Page_Controller, and just controller, there's nothing to render the form object that's returned? I'm basically just trying to experiment with building a more standard MVC application outside of the CMS framework, so I'm trying to avoid the inheritance of CMS objects.

Avatar
tbarho

Community Member, 41 Posts

13 January 2010 at 11:14am

Yeah, it looks like the newOrder() method is returning the form object, but there's no way to render it. Not sure how to get past that. . .

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