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.save() does not change the value of a field , django


By : A.Neis
Date : September 17 2020, 09:00 AM
I wish this helpful for you I am trying to implement a notification system. When the user clicks onto one of the notification from the drop down box , i will use a AJAX Post request to modify the boolean field to indicate that that particular instance of the Notification has been read before. , Typo. In model you got is_read in view if_read
code :


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Django, save data from form without having to manually set each field to save?


By : Elvis Dankbārs
Date : March 29 2020, 07:55 AM
I hope this helps . Sure, request.POST.items() and request.POST.iteritems() work just like the methods of the same name in a dict, returning resp. a list and an iterator of all (name, value) pairs (2-items tuple) in that dict-like object. If there are multiple values for a name, that only gives you the last one; if you want all of them, use request.POST.iterlists(), which in the value slot of each pair has a list of all the values for fields with that name.
So, assuming for example that you don't care about duplicates or know there are none, even a snippet as short as:
code :
for name, value in request.POST.iteritems():
    ModelName(**dict( [ (name, value) ] )).save()

Django form save or model save with a select field?


By : Semih Zerdeli
Date : March 29 2020, 07:55 AM
help you fix your problem What you actually need, is a ModelForm. In your example you're working with a standard forms.Form. This is not bound to a model instance. As a result, there's also no need for a save method. The best examples are really given inside the Django docs:
https://docs.djangoproject.com/en/dev/topics/forms/modelforms/

Django, can't save ManyToMany field from admin interface using save() method


By : Rasool
Date : March 29 2020, 07:55 AM
will be helpful for those in need You are calling super(AllAroundCompetition, self).save(…) at the bottom of your method. Adding an object to an m2m relation shouldn't need a save call afterwards at all, and calling save of another class might mess things up.
I suggest an alternative solution at all: try using a filter_horizontal for your products field in the admin. It has a nicer user interface, including search. No more ctrl-holding neccessary:
code :
class InvoiceAdmin(admin.ModelAdmin):
    filter_horizontal = ('products',)

How to change a field of all objects in a django queryset to a value but I don't want to save it


By : user3477967
Date : March 29 2020, 07:55 AM
Any of those help Your current code doesn't change anything in the database, so that is done. Depending on your some_condition you can remove the nested for loops, by querying the Choices directly:
code :
updated_choice_list = Choice.objects.filter(question__some_condition):
for choice in updated_choice_list:
    choice.vote = 0 

Django: Save to a many-to-many field in a ModelForm's save() method?


By : user3897873
Date : March 29 2020, 07:55 AM
will be helpful for those in need The most immediate issue in your code is that when the save() method is called by the Django admin, the commit argument is almost always False. However, if you simply ignore the value of commit, you will not be able to do model.post_meta.add(pm) for newly created Posts, since the model will not have been created in the database yet (and hence cannot be referred to in the Post to PostMeta m2m table).
See my answer to a different post, which I think is also applicable in your case, and has quite a bit of code that you may find useful.
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