Django - PrePopulate the Foreign Key on the web page, and use that id to save the model.
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//', 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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Re: Django - PrePopulate the Foreign Key on the web page, and use that id to save the model.
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//', 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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Re: Django - PrePopulate the Foreign Key on the web page, and use that id to save the model.
Cool, thanks Antje.
Seems it is working now, the only thing is in Drop-down i will have the
Project Name for which the URL is rest of the PRojects are removed from
drop down.
Now will work to have pre-selected. As of now it will default display as
-- with only one required project name.
Thanks & Regards,
-
Mayank Tripathi
Mo. +1 615 962 2128
"Do what you can, with what you have, where you are -by Theodore Roosevelt"
https://datascience.foundation/datascienceawards
On Sun, Apr 12, 2020 at 3:07 AM Antje Kazimiers wrote:
> 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//', 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.
>>
>>
>> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to django-users+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/django-users/26744cb1-03e3-4189-a438-0b462013bb66%40googlegroups.com
>
> .
>
--
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Re: Django - PrePopulate the Foreign Key on the web page, and use that id to save the model.
you're welcome, Mayank!
Adding initial to your ModelChoiceField definition should give you the
preselection.
self.fields['project'] = forms.ModelChoiceField(
initial=projectid,
queryset=Project.objects.filter(id=projectid)
)
On Sun, Apr 12, 2020 at 10:58 PM _M_A_Y_A_N_K_
wrote:
> Cool, thanks Antje.
>
> Seems it is working now, the only thing is in Drop-down i will have the
> Project Name for which the URL is rest of the PRojects are removed from
> drop down.
> Now will work to have pre-selected. As of now it will default display as
> -- with only one required project name.
>
> Thanks & Regards,
> -
> Mayank Tripathi
> Mo. +1 615 962 2128
> "Do what you can, with what you have, where you are -by Theodore
> Roosevelt"
> https://datascience.foundation/datascienceawards
>
>
>
> On Sun, Apr 12, 2020 at 3:07 AM Antje Kazimiers
> wrote:
>
>> 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//', 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.
>>>
>>>
>>> --
>> You received this message because you are subscribed to the Google Groups
>> "Django users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to django-users+unsubscr...@googlegroups.com.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/django-users/26744cb1-03e3-4189-a438-0b462013bb66%40googlegroups.com
>>
>> .
>>
> --
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