Develop Reference

Using django crispy-forms wrap to wrap multiple properties

I have a form with lots of repetition and I want to use the wrap function of django crispy forms to reduce this. This is the form as it stands:
class MyForm(ModelForm):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.helper = FormHelper(self)
self.helper.layout = Layout(
Row(Field(PrependedText('field1', 'Field1title', wrapper_class='col-12 stretchprepend')),
title = self.base_fields['field1'].help_text, data_bs_toggle='tooltip',
data_bs_placement='bottom', data_html="true"),
#fields 2-29
Row(Field(PrependedText('field30', 'Field30title', wrapper_class='col-12 stretchprepend')),
title = self.base_fields['field1'].help_text, data_bs_toggle='tooltip',
data_bs_placement='bottom', data_html="true")
)
CHOICES = [tuple([x,x]) for x in range(1,8)]
help_text = {'field1': ''''help text for field 1''' #etc for other fields)
field1 = IntegerField( label='Field1title', widget=Select(choices=CHOICES), help_text=help_text['field1'])
# Repeat up to field 30
class Meta:
model = mymodel
fields = ['field1',...,'field30']
I can get wrap to generate some aspects of the form like so:
self.helper.layout('field1'...'field30')
self.helper[:].wrap(Field, wrapper_class='col-12 stretchprepend')
I cant' seem to get it to work to include all the other aspects e.g. PrependedText, title, data_bs_toggle etc Please could anyone advise?

Django: Can I have two labels for a field?

I have a django form and I need to display unit of measurement.
For example, for a form field I have label and value. I also need to have another 'label' for unit measurement.
E.g. Weight [Textbox] Kg
How can I add Kg in a form in forms.py? I'm using crispy forms module to render my forms.
This is an example from forms.py .
class WeightForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super(LifeEventsForm, self).__init__(*args, **kwargs)
self.helper=FormHelper(self)
self.helper.layout = Layout(
'weight',
FormActions(
Submit('submit', "Save changes"),
Submit('cancel',"Cancel")
),
)
self.helper.form_tag = False
self.helper.form_show_labels = True
class Meta:
model = myWeight
My models.py looks like:
class myWeight(models.Model):
id = models.IntegerField()
weight = models.IntegerField(null=True,blank=True)
def __str__(self):
return str(self.id)

Maybe not best idea, but pretty straightforward:
You can override from crispy_forms.layout import Field with custom template
class DoubleLabeledField(Field):
template = "your_custom_field.html"
copypaste to your_custom_field.html everything from .../site-packages/crispy_forms/templates/bootstrap3/field.html (replace bootstrap3 if another template package) and put some info near every entrance of {{ field.label|safe }}
Then in your form should be:
self.helper.layout = Layout(
DoubleLabeledField('weight'),
FormActions(
Submit('submit', "Save changes"),
Submit('cancel',"Cancel")
),
)

request.user as a choice in select widget in Django

I have a model field
is_anonymous = BooleanField(default=False)
I also have a ModelForm. I want this field to be represented with a select widget.
It would be
class MyModelForm(forms.ModelForm):
class Meta:
model = MyModel
fields = ['is_anonymous']
widgets = {
'is_anonymous': forms.NullBooleanSelect(),
}
It works. But I want the select widget to only have two choices true (1) and false (0) and the represented text in each option should be Anonymous for true and self.request.user for false.
I think I have to do this replacement in the views as self.request.user is not available in the ModelForm.
How can I do this?

It's not 100% clear what you want, but if you want to display a select dropdown with only two choices; "Anonymous" which maps to True and "myusername" (i.e. the username of the current user) which maps to False, you need to override the is_anonymous field's widget's choices attribute:
class MyModelForm(forms.ModelForm):
def __init__(self, user, *args, **kwargs):
super(MyModelForm, self).__init__(*args, **kwargs)
self.fields['is_anonymous'].widget = forms.Select(choices=[
(True, "Anonymous"),
(False, user.username)
])
class Meta:
model = MyModel
fields = ['is_anonymous']
because we need the user object in our form, we need to pass it manually as a parameter when defining the form in our view. This depends on the type of view you are using, but assuming it's a generic class based CreateView, you need the following:
class MyCreateView(CreateView):
form_class = MyModelForm
...
def get_form(self, form_class):
return self.form_class(self.request.user, **self.get_form_kwargs())
...

How do I remove Label text in Django generated form?

I have a form that is displaying well only for the label text that I don't want and I have tried all I could to let it off my form but it won't just go...
forms.py:
class sign_up_form(forms.ModelForm):
class Meta:
model = Users
fields =['email']
widgets = {
'email': forms.EmailInput(attrs={
'id': 'email',
'class': 'form-control input-lg emailAddress',
'name': 'email',
'placeholder': 'Enter a valid email'})}
I have tried:
views.py:
from django.shortcuts import render
from mysite.forms import sign_up_form
def register(request):
sign_up = sign_up_form(auto_id=False)
context = {'sign_up_form': sign_up}
return render(request, 'mysite/register.html', context)
I need my widgets as defined above.

In ModelForms there will be default labels so you have to over-ride where you don't need labels
you can define it like this
class sign_up_form(forms.ModelForm):
email = forms.CharField(widget=forms.Textarea, label='')
class Meta:
model = Users
fields =['email']
This method will not include labels for your form, other method depends on rendering in template. You can always avoid labels from form
<label>MY LABEL</label> instead of {{ form.field.label }}

In __init__ method set your field label as empty.This will remove label text.
def __init__(self, *args, **kwargs):
super(sign_up_form, self).__init__(*args, **kwargs)
self.fields['email'].label = ""

If you're wanting to remove all labels, you can use:
class sign_up_form(forms.ModelForm):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
for key, field in self.fields.items():
field.label = ""

Make model form crispy

I'm trying to display all my model items but add some crispy elements. However it shows my html and buttons above the model form fields instead of being under the html and above the buttons.
Form
class BusinessForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super(BusinessForm, self).__init__(*args, **kwargs)
self.helper = FormHelper(self)
self.helper.form_class = 'form-horizontal'
self.helper.form_action = 'update'
self.helper.form_method = 'post'
self.helper.layout = Layout(
HTML("<p class='alert-info alert'>Please confirm your business contact information is updated and correct.</p>"),
Div(
FormActions(
Submit('save_changes', 'Save changes', css_class="btn-primary"),
),
css_class='row-fluid'
)
)
# self.helper.add_input(Submit('save_changes', 'Save changes', css_class="btn-primary"))
class Meta:
model = Business
exclude = ('inactive',)
View
def index(request, token):
try:
business = Business.objects.get(token__token=token)
except Token.DoesNotExist:
business = None
except Business.DoesNotExist:
business = None
return render(request, 'business/index.html', {'form': BusinessForm(instance=business)})
I saw use Crispy form with ModelForm however it displays my model fields below the formactions and I even tried an add_input which did the same thing. How would I get my model form fields to be displayed between the alert-info and above the submit button?