django order by query set ascending and descending

Question

How can I order by descending my query set in django by date   Reserved objects all   filter client client id  order by  check in     I just want to filter from descending all the Reserved by check in date

User · Answer

67  Reserved objects filter client client id  order by  -check in     -  is indicates Descending order and for Ascending order just give class attribute

User · Answer

Reserved objects filter client client id  order by  -check in     A hyphen  -  in front of  check in  indicates descending order  Ascending order is implied   We don t have to add an all   before filter    That would still work  but you only need to add all   when you want all objects from the root QuerySet   More on this here  https   docs djangoproject com en dev topics db queries  retrieving-specific-objects-with-filters

User · Answer

for ascending order   Reserved objects filter client client id  order by  check in     for descending order   1   Reserved objects filter client client id  order by  -check in     or  2   Reserved objects filter client client id  order by  check in     -1

User · Answer

If for some reason you have null values you can use the F function like this  from django db models import F Reserved objects all   filter client client id  order by F  check in   desc nulls last True   So it will put last the null values  Documentation by Django  https   docs djangoproject com en stable ref models expressions  using-f-to-sort-null-values

User · Answer

Ascending order   Reserved objects all   filter client client id  order by  check in    Descending order   Reserved objects all   filter client client id  order by  -check in      -  hyphen  is used to indicate descending order here

User · Answer

This is working for me   latestsetuplist   SetupTemplate objects order by  -creationTime    10    1

User · Answer

You can also use the following instruction   Reserved objects filter client client id  order by  check in   reverse

User · Answer

Reserved objects filter client client id  earliest  check in    Or alternatively Reserved objects filter client client id  latest  -check in    Here is the documentations for earliest   and latest

User · Answer

Reserved objects filter client client id  order by  -check in     Notice the - before check in   Django Documentation

User · Answer

It works removing  all     Reserved objects filter client client id  order by  -check in

User · Answer

Adding the - will order it in descending order  You can also set this by adding a default ordering to the meta of your model  This will mean that when you do a query you just do MyModel objects all   and it will come out in the correct order   class MyModel models Model        check in   models DateField        class Meta          ordering     -check in

[python] django order_by query set, ascending and descending

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