Django 2 Models Tutorial For Beginners (2018)

[@thedumbfounds767]

Note: the .create() method calls .save() automatically so there is no need to call it explicitly afterwards.

[@Skaxarrat]

When we should use ModelName.objects.get(id=id) and when get_object_or_404(ModelName, id=id)? What are the differences?

[@thedumbfounds767]

ModelName.objects.get(id=id) alone is problematic because it will give you an error if the model with that id doesn't exist, which is why it should be wrapped in a try-except block. get_object_or_404 is a helper function that automatically takes care of returning a 404 error if the model with that id doesn't exist. However, you should use get_object_or_404 only in views. Btw: the get_object_or_404 function uses ModelName.objects.get(id=id) under the hood with a try-except block. Here is the code for more information: github.com/django/django/blob/master/django/shortcuts.py. Any more questions?

[@topiaamr]

AWESOME !! Thank you for the tut

[@thedumbfounds767]

you're welcome, Topia!

[@gmoneep]

how to use django 2 with react - GrapgQL - apollo . i think all videos in this topic is old !! would you make a tut in that ??!

[@thedumbfounds767]

I'll perhaps show how to integrate frontend frameworks with APIs in the future. But essentially, because you expose endpoints (with GraphQL it's only 1), it can be consumed from any frontend, including react.

[@Thesrik23]

Nice work!

[@thedumbfounds767]

thanks dude, after one more video we'll get into more intermediate/advanced topics! :)

[@Thesrik23]

The Dumbfounds You are doing an amazing work mate. Keep it up!

[@thedumbfounds767]

thank you Srikant!

[@azadabdullahshaheed]

For beginner tutorial using views is better than python shell.

[@thedumbfounds767]

Thanks for the feedback. Thought it might be good not to mix the two when explaining how to deal with models.