Change a Django form field to a hidden field

user_161922 0
Viewed 234707

I have a Django form with a RegexField, which is very similar to a normal text input field.

In my view, under certain conditions I want to hide it from the user, and trying to keep the form as similar as possible. What's the best way to turn this field into a HiddenInput field?

I know I can set attributes on the field with:

form['fieldname'].field.widget.attr['readonly'] = 'readonly'

And I can set the desired initial value with:

form.initial['fieldname'] = 'mydesiredvalue'

However, that won't change the form of the widget.

What's the best / most "django-y" / least "hacky" way to make this field a <input type="hidden"> field?

django-forms django html python
11 Answers

If you want the field to always be hidden, use the following:

class MyForm(forms.Form):
    hidden_input = forms.CharField(widget=forms.HiddenInput(), initial="value")

If you want the field to be conditionally hidden, you can do the following:

form = MyForm()
if condition:
    form.fields["field_name"].widget = forms.HiddenInput()
    form.fields["field_name"].initial = "value"
user_28008760

Example of a model:

models.py

from django.db import models


class YourModel(models.Model):
    fieldname = models.CharField(max_length=255, default="default")

In your form, you can add widgets with ModelForm. To make it hidden add 'type': 'hidden' as shown below

forms.py

from .models import YourModel
from django import forms


class YourForm(forms.ModelForm):


    class Meta:
        model = YourModel
        fields = ('fieldname',)

        widgets = {
            'fieldname': forms.TextInput(attrs={'type': 'hidden'}),
        }

If you don't know how to add it to your views.py file, here is some videos about it.

If you use Function Based View:

https://www.youtube.com/watch?v=6oOHlcHkX2U

If you use Class Based View:

https://www.youtube.com/watch?v=KB_wDXBwhUA

user_151880260 
{{ form.field}}
{{ form.field.as_hidden }}

with this jinja format we can have both visible form fields and hidden ones too.

user_143318990

With render_field is easy {% render_field form.field hidden=True %}

user_140512760

if you want to hide and disable the field to protect the data inside. as others mentioned use the hiddenInput widget and make it disable

in your form init

example:

        if not current_user.is_staff:
           self.base_fields['pictureValid'].disabled = True
           self.base_fields['pictureValid'].widget = forms.HiddenInput()
user_103095540

You can just use css : 

#id_fieldname, label[for="id_fieldname"] {
  position: absolute;
  display: none
}

This will make the field and its label invisible.

user_104965700
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