Django versions 1.8 and later: You should use get_fields(): [f.name for f in MyModel._meta.get_fields()] The get_all_field_names() method is deprecated starting from Django 1.8 and will be removed in 1.10. The documentation page linked above provides a fully backwards-compatible implementation of get_all_field_names(), but for most purposes the previous example should work just fine. Django versions before … Read more
Use: object.m2mfield.add(*items) as described in the documentation: add() accepts an arbitrary number of arguments, not a list of them. add(obj1, obj2, obj3, …) To expand that list into arguments, use * add(*[obj1, obj2, obj3]) Addendum: Django does not call obj.save() for each item but uses bulk_create(), instead.
You have a few options: Put different URLs in the action for the two forms. Then you’ll have two different view functions to deal with the two different forms. Read the submit button values from the POST data. You can tell which submit button was clicked: How can I build multiple submit buttons django form?
if not orgs: # Do this… else: # Do that…
Django querysets are lazy. That means a query will hit the database only when you specifically ask for the result. So until you print or actually use the result of a query you can filter further with no database access. As you can see below your code only executes one sql query to fetch only … Read more
I solved it like this: MyClass.objects.filter(name__iexact=my_parameter) There is even a way to use it for substring search: MyClass.objects.filter(name__icontains=my_parameter) There’s a link to the documentation.
If you want to be able to specify ManyToMany relation without making it required just use blank=True: class Group(models.Model): … events = models.ManyToManyField(Event, blank=True)
You can use the with template tag. {% with name=”World” %} <html> <div>Hello {{name}}!</div> </html> {% endwith %}
This is how I do it, using jQuery: My template: <h3>My Services</h3> {{ serviceFormset.management_form }} {% for form in serviceFormset.forms %} <div class=”table”> <table class=”no_error”> {{ form.as_table }} </table> </div> {% endfor %} <input type=”button” value=”Add More” id=”add_more”> <script> $(‘#add_more’).click(function() { cloneMore(‘div.table:last’, ‘service’); }); </script> In a javascript file: function cloneMore(selector, type) { var newElement … Read more
Override your get_serializer_class method. This method is used in your model mixins to retrieve the proper Serializer class. Note that there is also a get_serializer method which returns an instance of the correct Serializer class DualSerializerViewSet(viewsets.ModelViewSet): def get_serializer_class(self): if self.action == ‘list’: return serializers.ListaGruppi if self.action == ‘retrieve’: return serializers.DettaglioGruppi return serializers.Default # I dont’ … Read more