Questions related to the usage of a Django helper class ModelForm that let programmers create a Form class from a model.
Questions tagged [modelform]
688 questions
124
votes
8 answers
Django ModelForm: What is save(commit=False) used for?
Why would I ever use save(commit=False) instead of just creating a form object from the ModelForm subclass and running is_valid() to validate both the form and model?
In other words, what is save(commit=False) for?
Can you provide hypothetical…
sgarza62
- 5,998
- 8
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80
votes
10 answers
Django's ModelForm unique_together validation
I have a Django model that looks like this.
class Solution(models.Model):
'''
Represents a solution to a specific problem.
'''
name = models.CharField(max_length=50)
problem = models.ForeignKey(Problem)
description =…
sttwister
- 2,279
- 1
- 19
- 23
56
votes
5 answers
Django: Make certain fields in a ModelForm required=False
How do I make certain fields in a ModelForm required=False?
If I have:
class ThatForm(ModelForm):
class Meta:
widgets = {"text": Textarea(required=False)}
Or if I have:
class ThatForm(ModelForm):
text = Textarea(required=False)
Django…
Synthead
- 2,162
- 5
- 22
- 25
49
votes
3 answers
Creating a model and related models with Inline formsets
[I have posted this at the Django users | Google Groups also.]
Using the example in the inline formset docs, I am able to edit objects belonging a particular model (using
modelforms). I have been trying to follow the same pattern for
creating new…
chefsmart
- 6,873
- 9
- 42
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45
votes
4 answers
how can I change the modelform label and give it a custom name
I want to create a custom name for on of the labels in my modelform
this is my forms.py
class PostForm(forms.ModelForm):
body = forms.CharField(widget=PagedownWidget)
publish = forms.DateField(
widget=forms.SelectDateWidget,
…
nothingness
- 971
- 3
- 10
- 18
40
votes
10 answers
Django ModelForm has no model class specified
I am trying to use ModelForm:
from django.db import models
from django.forms import ModelForm
class Car(models.Model):
carnumber = models.CharField(max_length=5)
def __unicode__(self):
return self.carnumber
class…
dpbklyn
- 781
- 3
- 10
- 19
32
votes
3 answers
Django ModelForm instance with custom queryset for a specific field
I have a model not unlike the following:
class Bike(models.Model):
made_at = models.ForeignKey(Factory)
added_on = models.DateField(auto_add_now=True)
All users may work at a number of factories and therefore their user profiles all have a…
Deniz Dogan
- 25,711
- 35
- 110
- 162
23
votes
4 answers
Dynamically update ModelForm's Meta class
I am hoping to dynamically update a ModelForm's inline Meta class from my view. Although this code seems to update the exclude list in the Meta class, the output from as_p(), as_ul(), etc does not reflect the updated Meta exclude.
I assume then that…
ashchristopher
- 25,143
- 18
- 48
- 49
23
votes
2 answers
Django ModelForm Imagefield Upload
I am pretty new to Django and I met a problem in handling image upload using ModelForm.
My model is as following:
class Project(models.Model):
name = models.CharField(max_length=100)
description = models.CharField(max_length=2000)
…
Wei Xu
- 1,629
- 2
- 19
- 31
22
votes
1 answer
modelform: override clean method
I have two questions concerning the clean method on a modelform. Here is my example:
class AddProfileForm(ModelForm):
...
password = forms.CharField(max_length=30,widget=forms.PasswordInput(attrs={'class':'form2'}))
…
rom
- 3,592
- 7
- 41
- 71
18
votes
1 answer
add extra field to ModelForm
I am adding an extra field to a Django ModelForm like that:
class form(forms.ModelForm):
extra_field = forms.CharField(label='Name of Institution')
class Meta:
model = db_institutionInstitution
fields =…
sennierer
- 213
- 1
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- 6
17
votes
4 answers
field choices() as queryset?
I need to make a form, which have 1 select and 1 text input. Select must be taken from database.
model looks like this:
class Province(models.Model):
name = models.CharField(max_length=30)
slug = models.SlugField(max_length=30)
def…
robos85
- 2,484
- 5
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- 36
16
votes
4 answers
How do I update an already existing row when using ModelForms?
I have a question on how to update an existing row in my database when one of the fields is my primary key. I am using ModelForm and Django-Piston - my main goal here is to have RESTful Post send to my webservice. I am able to have initial Posts be…
letsgofast
- 257
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16
votes
2 answers
How to get Interdependent dropdowns in django using Modelform and jquery?
I am new to django and jquery. I am working on a django-based app where I have 3 drop downs in a form.
1. Campus
2. School
3. Centre
The hierarchy is Campuses have schools and schools have centres. I want to interlink these drop-downs.
For…
escapee
- 413
- 1
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14
votes
6 answers
Django: how to hide/overwrite default label with ModelForm?
i have the following, but why does this not hide the label for book comment? I get the error 'textfield' is not defined:
from django.db import models
from django.forms import ModelForm, Textarea
class Booklog(models.Model):
Author =…
thedeepfield
- 6,138
- 25
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