Hi, I think in your view modulesView() you need to pass the project id to
ModuleForm:
..
else :
form = ModuleForm(projectid)
..
and then you need to overwrite the constructor of ModuleForm by adding an
__init__ function:
def __init__(self, projectid=None, *args, **kwargs):
super(ModuleForm, self).__init__(*args, **kwargs)
if projectid is not None:
self.fields['project'] = forms.ModelChoiceField(
...
queryset=Project.objects.filter(id=projectid)
)
something like that. --Antje
On Sunday, April 12, 2020 at 8:14:51 AM UTC+2, Mayank Tripathi wrote:
>
> Hi All,
>
> I am facing an issue, to pre-populate the Foreign Key on the web page.
> Actually i have two models Projects and Modules.
> To create a Module, one has to select the Project and go to Module page
> for create it, but there the Project is not populated.
>
> Below are the details... Please guide me.
>
> *models.py*
> class Project(models.Model):
> name = models.CharField(max_length = 200, null = True)
> startdate = models.DateTimeField()
>
> def __str__(self):
> return self.name
>
> class Modules(models.Model):
> project = models.ForeignKey(Project, null = True, on_delete =
> models.SET_NULL)
> modulename = models.CharField(max_length = 200, null = True)
> modulestartdate = models.DateTimeField()
>
> def __str__(self):
> return self.modulename
>
> *forms.py*
> class ProjectForm(forms.ModelForm):
> class Meta:
> model = Project
> fields = '__all__'
>
>
> class ModuleForm(forms.ModelForm):
> class Meta:
> model = Modules
> fields = '__all__'
>
> *views.py*
> def projectView (request):
> if request.method == 'POST':
> form = ProjectForm(request.POST)
> if form.is_valid():
> form.save(commit=True)
>
> return render(request, 'budget/projectForm.html', {'form': form})
>
> else :
> form = ProjectForm()
> return render(request, 'budget/projectForm.html', {'form': form})
>
>
> def modulesView (request, projectid):
> project = Project.objects.get(pk=projectid)
>
> if request.method == 'POST':
> form = ModuleForm(request.POST)
> if form.is_valid():
> form.save(commit=True)
>
> return render(request, 'example/modulesForm.html', {'form': form})
>
> else :
> form = ModuleForm(instance=project)
> return render(request, 'example/modulesForm.html', {'form': form})
>
> *urls.py*
> path('testproject/', views.projectView, name='projectView'),
> path('testprojectmodule/<str:projectid>/', views.modulesView,
> name='modulesView'),
>
> in html forms for both Project and Modules... just using {{ form.as_table
> }}.
>
> Now after createing the Project, i used the url as
> http://127.0.0.1:8000/testprojectmodule/1/
> then my Project should get pre-populated... as reached using the project
> id which is 1 in this case, but i am getting full drop-down. Refer attached
> image.
> Either the Project should be pre-selected.. or can make it non-editable
> either will work for me.
>
> Please help.
>
>
>
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