Category: Python Answers

Sometimes, we want to convert a list back to a queryset with Python Django.

In this article, we’ll look at how to convert a list back to a queryset with Python Django.

How to convert a list back to a queryset with Python Django?

To convert a list back to a queryset with Python Django, we can use the filter method.

For instance, we write

model.objects.filter(pk__in=list_of_ids)

to call filter with the pk__in argument set to the list_of_ids list to get all model objects with the primary key in the list_of_ids.

Conclusion

To convert a list back to a queryset with Python Django, we can use the filter method.

Sometimes, we want to handle request.GET with multiple variables for the same parameter in Python Django.

In this article, we’ll look at how to handle request.GET with multiple variables for the same parameter in Python Django.

How to handle request.GET with multiple variables for the same parameter in Python Django?

To handle request.GET with multiple variables for the same parameter in Python Django, we can use the getlist method.

For instance, we write

request.GET.getlist('myvar')

to call request.GET.getlist with the myvar query string key to get all the values of the myvar query parameter as a list.

Conclusion

To handle request.GET with multiple variables for the same parameter in Python Django, we can use the getlist method.

Sometimes, we want to select DISTINCT individual columns in Python Django.

In this article, we’ll look at how to select DISTINCT individual columns in Python Django.

How to select DISTINCT individual columns in Python Django?

To select DISTINCT individual columns in Python Django, we can use the distinct method.

For instance, we write

ProductOrder.objects.all().distinct('category')

to call distinct to select all ProductOrder objects with the distinct category field values.

Conclusion

To select DISTINCT individual columns in Python Django, we can use the distinct method.

Sometimes, we want to set the time zone in Python Django.

In this article, we’ll look at how to set the time zone in Python Django.

How to set the time zone in Python Django?

To set the time zone in Python Django, we can set the TIME_ZONE setting in settings.py.

For instance, we write

TIME_ZONE = 'Europe/Amsterdam'

to set TIME_ZONE to the time zone we want in settings.py.

We can get the list of valid time zones from https://en.wikipedia.org/wiki/List_of_tz_database_time_zones.

Conclusion

To set the time zone in Python Django, we can set the TIME_ZONE setting in settings.py.

Sometimes, we want to filter on foreign key properties with Python Django.

In this article, we’ll look at how to filter on foreign key properties with Python Django.

How to filter on foreign key properties with Python Django?

To filter on foreign key properties with Python Django, we call filter with an argument with the name that includes the foreign key field name,

For instance, we write

Asset.objects.filter( project__name__contains="Foo" )

to call filter with the project table’s name field property including the string 'Foo'.

Conclusion

To filter on foreign key properties with Python Django, we call filter with an argument with the name that includes the foreign key field name,