= A more complex example =

Here is a rather more complex example that uses a number of different input types.

Here's the model.
{{{#!python
class User:
   def __init__(self):
       self.name = ''
       self.an_int = 0
       self.a_float = 0.0
       self.country = 0
       self.password = ''
       self.active = False
}}}

The form that describes how we want it laid out
{{{#!python
        # Slightly abridged list of all the countries in the world.
        country_names = (
            'Australia',     'Belgium',      'Cuba',
            'Greenland',     'Madagascar',   'Netherlands',
            'Switzerland',   'Uzbekistan',   'Zimbabwe'
        )
        country_menu = [e  for e in enumerate(country_names)]
        fields = (
            TextField('Name', 'name', required=True),
            IntegerField('Integer', 'an_int'),
            FloatField('Float', 'a_float'),
            SelectField('Country', country_menu, 'country'),
            PasswordField('Password', 'password',
                          required=True),
            Checkbox('Active', 'active'),
        )
        buttons = Buttons((
            Button('Save', 'save'),
            Button('Cancel', 'cancel'),
        ))
        fieldsets = (Fieldset(fields), )
        ctx.locals.test_form = FieldsetForm('User details',
                                            fieldsets,
                                            buttons=buttons)
}}}

Render the form on the page:
{{{#!html
     <al-form method="POST">
	<div class="alxform">
	  <alx-form name="test_form" errors />
	</div>
      </al-form>
}}}

That looks like this:
{{attachment:forms-complex-1.png}}

To render the form as static report:
{{{#!html
      <div class="alxform">
	<alx-form name="test_form" static />
      </div>
}}}

In the {{{forms.py}}} file, the code looks like:

{{{#!python
def page_enter(ctx):
    if not ctx.has_value('test_form'):
        ctx.locals.description = User()
        ctx.add_session_vars('description')
        ctx.locals.test_form = [see above]


def page_display(ctx):
    ctx.run_template('forms.html')


def page_process(ctx):
    if ctx.req_equals('save'):
        try:
            ctx.locals.test_form.validate()
        except FormValidationError, e:
            ctx.locals.test_form.set_disabled(False)
            return
        ctx.locals.test_form.set_disabled(True)  # This disables the FieldSet!
        # update the values in the model from the form
        ctx.locals.test_form.merge(ctx.locals.description)
        # now you can do things with the updated object, eg
        ctx.log('user %s, active %s' % (ctx.locals.description.user, ctx.locals.description.active))
    elif ctx.req_equals('reset'):
        ctx.locals.test_form.clear()
        ctx.locals.test_form.set_disabled(False)
    elif ctx.req_equals('cancel'):
        if ctx.locals.test_form.disabled:
            ctx.locals.test_form.set_disabled(False)
        else:
            ctx.locals.test_form.clear()
            ctx.redirect('main')
}}}