Wrong ordering of many-to-many fields with explicit intermediary model in Django admin
Hi, all. I have a Submission model with a many-to-many relationship with a Market model and explicitly defined a SubmissionMarket model as intermediary model. I have defined Submission inlines in a ModelAdmin class (used by Django admin) and defined the markets field as the first one in the fields attribute of a form associated with that submission inline. However, that field is being shown by last (at the end of the inline row). Debugging, I found out that: - django.forms.models.fields_for_model() creates a dict of form fields for a Django model. That function is used during the construction of any form. - a form field defined in the Form.Meta.fields is ignored in fields_for_model() if formfield_callback is passed as argument and if that callable returns None - django.forms.models.ModelFormMetaclass passes BaseModelAdmin.formfield_for_dbfield as formfield_callback arg in fields_for_model() - This formfield_for_dbfield() method ends up calling formfield_for_manytomany() if the field is m2m. The latter method returns None if the intermediary model was not created automatically by Django, which causes the field to be ignored. This is the code that does it in django/contrib/admin/options.py: # If it uses an intermediary model that isn't auto created, don't show # a field in admin. if not db_field.remote_field.through._meta.auto_created: return None - Later, the markets field is added at the end of the form, I haven't investigated why. My question is: what's the motivation of ignoring the m2m field if the intermediary model is not auto created? Could this behavior be customized? Thanks in advance! Regards, Alan -- 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/0974c9a3-3e03-42bb-a862-922ad68e329an%40googlegroups.com.
Re: NoReverseMatch at / Reverse for 'add_time_slot' with arguments '('',)' not found. 1 pattern(s) tried: ['add_time_slot/(?P[0-9]+)/\\Z']
thank you! i think this is because you are not looping or have a turf_id in
the template. by 'loop' or have you tried '/add_time_lot//'?
On Wed, Nov 1, 2023 at 10:53 PM Sudharsan wrote:
> urlpatterns = [
> path('', views.home, name ='home'),
> path('home/', views.allTurfs,name = 'allturfs'),
> path('profile/', views.dashboard, name = 'profile'),
> path('about/', views.about, name = 'about'),
> path('add_venue/', views.add_Turf, name = 'add_turf'),
> path('/', views.allTurfs, name='turf_by_place'),
> path('/', views.Turf_det, name='turf_det'),
> path('add_time_slot//', views.add_time_slot, name=
> 'add_time_slot'),
> ]
>
> On Wednesday, November 1, 2023 at 8:17:28 PM UTC+5:30 Migui Galan wrote:
>
>> Hi! can you include the urls.py code? this is mainly because you have not
>> included the within the url setup
>>
>> On Wed, Nov 1, 2023 at 10:42 PM Sudharsan wrote:
>>
>>> i getting an error while doing python django project. i was tried many
>>> things but nothing works. Please help me guys.
>>> [image: error.png]
>>> *views.py*
>>> # view for adding Turf page
>>> def add_Turf(request):
>>> submitted = False
>>> if request.method == "POST":
>>> form = TurfForm(request.POST)
>>> if form.is_valid():
>>> var = form.save(commit=False)
>>> var.created_by = request.user
>>> var.save()
>>> messages.info(request, ' Your Turf has added successfully')
>>> turf_id=var.id
>>> return redirect('add_time_slot',turf_id=turf_id)
>>> else:
>>> form = TurfForm
>>> if 'submitted' in request.GET:
>>> submitted = True
>>> return render(request, 'addvenue.html',{'form': form, 'submitted':
>>> submitted})
>>>
>>>
>>> # view for adding time slot
>>>
>>> def add_time_slot(request,turf_id):
>>> turf = Venue.objects.get(pk=turf_id)
>>> if request.method == 'POST':
>>> form = TimeSlotForm(request.POST)
>>> if form.is_valid():
>>> timeslot = form.save(commit=False)
>>> timeslot.turf = turf # Set the Turf for this TimeSlot
>>> timeslot.save()
>>> return redirect('add_time_slot', turf_id=turf)
>>> else:
>>> form = TimeSlotForm()
>>> return render(request, 'add_time_slot.html', {'form': form, 'turf':
>>> turf})
>>>
>>>
>>>
>>> [image: modelspy.png][image: modelspy2.png][image: error3.png]
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
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>>>
>>> .
>>>
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Re: NoReverseMatch at / Reverse for 'add_time_slot' with arguments '('',)' not found. 1 pattern(s) tried: ['add_time_slot/(?P[0-9]+)/\\Z']
I think the problem is in the data into turf_id. Are you sure that turf_id
contains only integer value? it's strange the problem with argument:
'('',)' - try to verify the data passed with turf_id if are correct...
Il giorno mer 1 nov 2023 alle ore 16:05 Adesewa Lola <
adesewalola2...@gmail.com> ha scritto:
> Hi Check your urls.py code
>
> On Wed, Nov 1, 2023 at 3:53 PM Sudharsan wrote:
>
>> urlpatterns = [
>> path('', views.home, name ='home'),
>> path('home/', views.allTurfs,name = 'allturfs'),
>> path('profile/', views.dashboard, name = 'profile'),
>> path('about/', views.about, name = 'about'),
>> path('add_venue/', views.add_Turf, name = 'add_turf'),
>> path('/', views.allTurfs, name='turf_by_place'),
>> path('/', views.Turf_det, name='turf_det'),
>> path('add_time_slot//', views.add_time_slot, name=
>> 'add_time_slot'),
>> ]
>>
>> On Wednesday, November 1, 2023 at 8:17:28 PM UTC+5:30 Migui Galan wrote:
>>
>>> Hi! can you include the urls.py code? this is mainly because you have
>>> not included the within the url setup
>>>
>>> On Wed, Nov 1, 2023 at 10:42 PM Sudharsan wrote:
>>>
i getting an error while doing python django project. i was tried many
things but nothing works. Please help me guys.
[image: error.png]
*views.py*
# view for adding Turf page
def add_Turf(request):
submitted = False
if request.method == "POST":
form = TurfForm(request.POST)
if form.is_valid():
var = form.save(commit=False)
var.created_by = request.user
var.save()
messages.info(request, ' Your Turf has added successfully')
turf_id=var.id
return redirect('add_time_slot',turf_id=turf_id)
else:
form = TurfForm
if 'submitted' in request.GET:
submitted = True
return render(request, 'addvenue.html',{'form': form, 'submitted':
submitted})
# view for adding time slot
def add_time_slot(request,turf_id):
turf = Venue.objects.get(pk=turf_id)
if request.method == 'POST':
form = TimeSlotForm(request.POST)
if form.is_valid():
timeslot = form.save(commit=False)
timeslot.turf = turf # Set the Turf for this TimeSlot
timeslot.save()
return redirect('add_time_slot', turf_id=turf)
else:
form = TimeSlotForm()
return render(request, 'add_time_slot.html', {'form': form, 'turf':
turf})
[image: modelspy.png][image: modelspy2.png][image: error3.png]
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>>
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>>
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Re: NoReverseMatch at / Reverse for 'add_time_slot' with arguments '('',)' not found. 1 pattern(s) tried: ['add_time_slot/(?P[0-9]+)/\\Z']
Hi Check your urls.py code
On Wed, Nov 1, 2023 at 3:53 PM Sudharsan wrote:
> urlpatterns = [
> path('', views.home, name ='home'),
> path('home/', views.allTurfs,name = 'allturfs'),
> path('profile/', views.dashboard, name = 'profile'),
> path('about/', views.about, name = 'about'),
> path('add_venue/', views.add_Turf, name = 'add_turf'),
> path('/', views.allTurfs, name='turf_by_place'),
> path('/', views.Turf_det, name='turf_det'),
> path('add_time_slot//', views.add_time_slot, name=
> 'add_time_slot'),
> ]
>
> On Wednesday, November 1, 2023 at 8:17:28 PM UTC+5:30 Migui Galan wrote:
>
>> Hi! can you include the urls.py code? this is mainly because you have not
>> included the within the url setup
>>
>> On Wed, Nov 1, 2023 at 10:42 PM Sudharsan wrote:
>>
>>> i getting an error while doing python django project. i was tried many
>>> things but nothing works. Please help me guys.
>>> [image: error.png]
>>> *views.py*
>>> # view for adding Turf page
>>> def add_Turf(request):
>>> submitted = False
>>> if request.method == "POST":
>>> form = TurfForm(request.POST)
>>> if form.is_valid():
>>> var = form.save(commit=False)
>>> var.created_by = request.user
>>> var.save()
>>> messages.info(request, ' Your Turf has added successfully')
>>> turf_id=var.id
>>> return redirect('add_time_slot',turf_id=turf_id)
>>> else:
>>> form = TurfForm
>>> if 'submitted' in request.GET:
>>> submitted = True
>>> return render(request, 'addvenue.html',{'form': form, 'submitted':
>>> submitted})
>>>
>>>
>>> # view for adding time slot
>>>
>>> def add_time_slot(request,turf_id):
>>> turf = Venue.objects.get(pk=turf_id)
>>> if request.method == 'POST':
>>> form = TimeSlotForm(request.POST)
>>> if form.is_valid():
>>> timeslot = form.save(commit=False)
>>> timeslot.turf = turf # Set the Turf for this TimeSlot
>>> timeslot.save()
>>> return redirect('add_time_slot', turf_id=turf)
>>> else:
>>> form = TimeSlotForm()
>>> return render(request, 'add_time_slot.html', {'form': form, 'turf':
>>> turf})
>>>
>>>
>>>
>>> [image: modelspy.png][image: modelspy2.png][image: error3.png]
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> --
>>> 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...@googlegroups.com.
>>> To view this discussion on the web visit
>>> https://groups.google.com/d/msgid/django-users/439756cf-9e61-430f-8d28-c72afb9b4a49n%40googlegroups.com
>>>
>>> .
>>>
>> --
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Re: NoReverseMatch at / Reverse for 'add_time_slot' with arguments '('',)' not found. 1 pattern(s) tried: ['add_time_slot/(?P[0-9]+)/\\Z']
urlpatterns = [
path('', views.home, name ='home'),
path('home/', views.allTurfs,name = 'allturfs'),
path('profile/', views.dashboard, name = 'profile'),
path('about/', views.about, name = 'about'),
path('add_venue/', views.add_Turf, name = 'add_turf'),
path('/', views.allTurfs, name='turf_by_place'),
path('/', views.Turf_det, name='turf_det'),
path('add_time_slot//', views.add_time_slot, name=
'add_time_slot'),
]
On Wednesday, November 1, 2023 at 8:17:28 PM UTC+5:30 Migui Galan wrote:
> Hi! can you include the urls.py code? this is mainly because you have not
> included the within the url setup
>
> On Wed, Nov 1, 2023 at 10:42 PM Sudharsan wrote:
>
>> i getting an error while doing python django project. i was tried many
>> things but nothing works. Please help me guys.
>> [image: error.png]
>> *views.py*
>> # view for adding Turf page
>> def add_Turf(request):
>> submitted = False
>> if request.method == "POST":
>> form = TurfForm(request.POST)
>> if form.is_valid():
>> var = form.save(commit=False)
>> var.created_by = request.user
>> var.save()
>> messages.info(request, ' Your Turf has added successfully')
>> turf_id=var.id
>> return redirect('add_time_slot',turf_id=turf_id)
>> else:
>> form = TurfForm
>> if 'submitted' in request.GET:
>> submitted = True
>> return render(request, 'addvenue.html',{'form': form, 'submitted':
>> submitted})
>>
>>
>> # view for adding time slot
>>
>> def add_time_slot(request,turf_id):
>> turf = Venue.objects.get(pk=turf_id)
>> if request.method == 'POST':
>> form = TimeSlotForm(request.POST)
>> if form.is_valid():
>> timeslot = form.save(commit=False)
>> timeslot.turf = turf # Set the Turf for this TimeSlot
>> timeslot.save()
>> return redirect('add_time_slot', turf_id=turf)
>> else:
>> form = TimeSlotForm()
>> return render(request, 'add_time_slot.html', {'form': form, 'turf':
>> turf})
>>
>>
>>
>> [image: modelspy.png][image: modelspy2.png][image: error3.png]
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> --
>> 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...@googlegroups.com.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/django-users/439756cf-9e61-430f-8d28-c72afb9b4a49n%40googlegroups.com
>>
>>
>> .
>>
>
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