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Comment by Mark on "How to get login time and logout time of multiple users/students using Django views?" | Hashnode

Mark

Jul 25, 2019

I don't really get what's going on. What is Timestamp? You're querying Attendance but it seems not doing anything with it. Except you're overwriting Attendance (class) by the result of the query; you should really probably call it attendance = ....

Software Engineer

Jul 25, 2019

Sorry, Forgot to edit the code before posting.

Mark

Jul 25, 2019

It might be a good idea to follow Python naming conventions. Besides that though, there's nothing student specific in the query, so it's probably already for all students (i.e. the first and last may not be the same student).

Software Engineer

Jul 25, 2019

ok. But I am still pretty much confused like how to implement this logic like can I use for loop to get login and logout time of all students or is there any other way? That's where I need help. Currently, I can retrieve Login and Logout in object form and I am trying to show it on the frontend.

Mark

Jul 25, 2019

The easy way is to do as you said: find all the users, and create a loop that for each user, finds the start and end time, by adding the user to .filter.

The harder way with better performance is to make a group by query with Django, which you can do like this: stackoverflow.com/questions/629551/how-to-query-a…

Software Engineer

Jul 25, 2019

Thank You, sir, will try this solution. :)