def form_helper(button=None,
form=None,
formset=None,
form_tag=False,
label_size=4,
label_offset=0,
field_size=8):
helper = FormHelper()
helper.form_tag = form_tag
if label_size:
helper.label_class = "col-md-{}".format(label_size)
helper.field_class = "col-md-{}".format(field_size)
if label_offset:
helper.label_size = ' col-md-offset-{}'.format(label_offset)
if form:
helper.add_layout(helper.build_default_layout(form))
if formset:
helper.template = "bootstrap/table_inline_formset.html"
if form and button:
helper.layout.fields.append(
Div(Div(StrictButton(button,
css_class="btn btn-default",
type="submit"),
css_class="col-md-{} col-md-offset-{}".format(
field_size, (label_size + label_offset))),
css_class="form-group"))
return helper
class CashInvoicePaymentForm(Form):
receipt_number = fields.IntegerField()
amount = fields.DecimalField(max_digits=8,
decimal_places=2,
validators=[validators.MinValueValidator(0)])
def __init__(self, *args, instance, **kwargs):
super().__init__(*args, **kwargs)
self.instance = instance
self.helper = FormHelper()
self.helper.include_media = False
layout = self.helper.build_default_layout(self)
layout.fields.append(
ButtonHolder(
Submit('pay', 'Record Payment'),
HTML(
'<a href="{}" class="btn btn-secondary">Cancel</a>'.format(
reverse(
'front_desk.check_in',
kwargs={
'username': self.instance.recipient.username
},
)))))
self.helper.add_layout(layout)
def clean_amount(self):
amount = self.cleaned_data['amount']
expected_amount = self.instance.total
if amount != expected_amount:
raise ValidationError(
'The invoice was for USD {}'.format(expected_amount))
return amount
class RegisterOnSiteForm(Form):
name = fields.CharField()
username = fields.CharField(validators=[
validators.RegexValidator(
r'^[\w.@+-]+$',
'Enter a valid username. This value may contain only letters, '
'numbers and @/./+/-/_ characters.', 'invalid')
])
email = fields.EmailField()
departure = fields.DateTimeField()
coc_ack = fields.BooleanField(label='Agrees to abide by CoC')
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.helper = FormHelper()
self.helper.include_media = False
layout = self.helper.build_default_layout(self)
layout.fields.append(
ButtonHolder(
Submit('register', 'Register'),
HTML(
'<a href="{}" class="btn btn-secondary">Cancel</a>'.format(
reverse('front_desk'))),
))
self.helper.add_layout(layout)
def clean_username(self):
username = self.cleaned_data['username']
if get_user_model().objects.filter(username=username).exists():
raise ValidationError('User with this username already exists')
return username
def clean_email(self):
email = self.cleaned_data['email']
if get_user_model().objects.filter(email=email).exists():
raise ValidationError('User with this email already exists')
return email
def get_render(context, form, helper, template_pack, is_subform):
is_formset = isinstance(form, BaseFormSet)
if helper is None:
helper = 'helper'
# Resolve actual helper.
# If we have a helper we use it, for the form or the formset's forms
actual_helper = None
layout = None
if isinstance(helper, FormHelper):
actual_helper = helper
elif isinstance(helper, six.string_types):
helper, _, layout = helper.partition('.')
if not helper:
helper = 'helper'
# If the user names the helper within the form `helper` (standard), we use it
# This allows us to have simplified tag syntax: {% crispy form %}
try:
_helper = getattr(form, helper, None) or form.helper
if _helper is not None:
actual_helper = _helper
except AttributeError:
pass
# Use formset's helper from above, if any, otherwise fallback
# to formset's form's helper.
if is_formset and not actual_helper:
try:
actual_formset = form.form()
_helper = getattr(actual_formset, helper, None) or actual_formset.helper
if _helper is not None:
actual_helper = _helper
except AttributeError:
pass
if not isinstance(actual_helper, FormHelper):
actual_helper = FormHelper(form=form)
if not layout:
layout = 'layout'
# Resolve actual layout.
actual_layout = getattr(actual_helper, layout, None) or actual_helper.layout
# print
# print 'form', form.__module__, repr(form)
# print 'helper', '(%s)' % helper, actual_helper.__module__, repr(actual_helper)
# print 'layout', '(%s)' % layout, actual_layout.__module__, repr(actual_layout)
if actual_layout is None:
actual_layout = actual_helper.build_default_layout(form)
# We get the response dictionary
response_dict = get_response_dict(context, actual_helper, actual_layout, is_formset, template_pack, is_subform)
context.update(response_dict)
if actual_layout:
# FIXME: THESE CHANGE HELPER'S STATE (SHOULD NEVER DO THIS DURING RENDER):
if is_formset:
forloop = ForLoopSimulator(form)
actual_helper.render_hidden_fields = True
for _form in form:
context.update({'forloop': forloop})
_form.form_html = actual_layout.render_layout(_form, context, template_pack=template_pack)
forloop.iterate()
else:
form.form_html = actual_layout.render_layout(form, context, template_pack=template_pack)
# Add rendered inputs.
if response_dict['inputs'] and response_dict['form_tag']:
response_dict['inputs'] = [i.render(form, response_dict['form_style'], context, template_pack=template_pack) for i in response_dict['inputs']]
else:
response_dict['inputs'] = None
# Add form or formset.
if is_formset:
response_dict['formset'] = form
else:
response_dict['form'] = form
# Add template.
_template = getattr(actual_helper, 'template', None)
if not _template:
if is_formset:
_template = '%s/whole_crispy_formset.html' % template_pack
else:
_template = '%s/whole_crispy_form.html' % template_pack
response_dict['template'] = _template
return Context(response_dict)
