id summary reporter owner description type status component version severity resolution keywords cc stage has_patch needs_docs needs_tests needs_better_patch easy ui_ux
29201 Rendering issues when using ArrayField(models.BooleanField()) linluc "My goal is to replace 50 Boolean fields with one ArrayField(models.BooleanField(), size=50) so I am prototyping this approach. I have not found a single online example with such combination (ArrayField + BooleanField) and also this area is very poorly documented. I am running into numerous issues and that makes me feel that it was never properly tested. Well, I am offering my help in future testing regarding this issue.
Here is my simple model (using Django 2.0.3):
{{{
class Test1Model(models.Model):
user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
user_choices = ArrayField(models.BooleanField(), default=(), size=5, null=True)
}}}
form:
{{{
class Test1Form(forms.ModelForm):
class Meta:
model = Test1Model
fields = ('user_choices',)
widgets = {
'user_choices' : SplitArrayWidget(forms.CheckboxInput(),5)
}
}}}
view:
{{{
def run_test1(request):
if request.method == 'POST':
test_form = Test1Form(instance=request.user.test1model, data=request.POST)
if test_form.is_valid():
test_form.save()
else:
print(test_form.errors)
else:
test_form = Test1Form(instance=request.user.test1model)
return render(request, 'test1/test1.html' , {'test_form': test_form})
}}}
template (test1.html):
{{{
TEST1
}}}
Here you will encounter a bug which I already reported ([https://code.djangoproject.com/ticket/29197]) but it is easy to fix by moving the template directory.
After fixing the template issue the initial page renders OK, 5 check-boxes are present (see attached image, section A).
Problem 1: by default all check-boxes are required and I was unable to reverse that. Adding ""required = False"" caused the following error:
{{{
TypeError: __init__() got an unexpected keyword argument 'required'
}}}
See the image, section B.
OK, for the purpose of prototyping I checked all check boxes and submitted the form. The output was highly unexpected (image, section C).
The output page includes 24 check-boxes and by looking at the generated HTML we can see why (hint: value=""""):
{{{
}}}
I should note that the values are saved in the database correctly, but still the Django included rendering choices (as_p, as_ul, as_table) are broken here.
Please also note that the label assignment is broken as well, there is only one label generated for all check-boxes." Bug closed contrib.postgres 2.0 Normal invalid ArrayField BooleanField SplitArrayWidget rendering Unreviewed 0 0 0 0 0 0