value in form dependent on URL

schema.yml:

Shop: title: { type: string(50) } number: { type: integer(2) }

i can set default value for number in ShopForm.class or method save. but how can i make it with address URL?

http://www.myaddress.com/shop/new

in action.class.php (Shop.class.php)

public function exe开发者_Python百科cuteNew(sfWebRequest $request)
  {
    $this->form = new ShopForm();
  }

for example if i open address:

http://www.myaddress.com/shop/new/number/2

then automatically set number = 2 for this form.

thanks for help!

you can catch the parameter in the New Action doing this:

$this->number = $request->getParameter('number');

Doing that you can access to the $number variable in your template (where you build your form). Then in the form field where you specify the number value, just put something like this:

<input type="whatever" name="number" value="<?php echo $number?>">

hope this helped you! good luck