A Simple Many-To-Many Example in Django

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DJ 04 Many 02 Many

Chuck Severance

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thanks, Chuck, you save my life, with this explanation

elhalmihamza

Well explained. This video deserves more views

FahmiEshaq

Thank you Chuck, your explanations are very detailed and comprehensive.

williamfash

Excelent! After a long time searching, I found the solution to a problem that I had in my approach to many to many.

timoteopolak

You are the one I was looking for. thx, I am your fan now!

influensor

Dude that was clearly explained, I mean, content is great!!! i really appreciate your work and feel free with droppin' your pen, if you managed to take it back, thats okay😅😅😅. All in all thanks for comprehensive video

abdusamadabdullakhanov

There are instances where certain property changes to a field do not get noticed by makemigrations. The easiest solution, since I didn't yet have anything in the database, was to comment it out, migrate, comment it in with the new setting and migrate. Stack overflow had some solutions to write a script by hand (which were not relevant to me just learning).

seantilson

Well that's an important detail in Django Models, according to the documentationm, no Joint Table is required, only consider the ManyToManyField model type (that saves code and logic but is not standard I think). In pure SQL (Database First approach) the Joint table is definitively required, I think.

sdscode

thank you so much, very clear and short

ghilesdjebara

When I add Author in ManyToManyField it gives me name error name Author is not defined.
Any solutions for that?

mkrtichhovhannisyan

I run this code with manyToMany and without manyToMany
And the result was the same
And i was able to see the result by django-exentions
Django-exentions can generate graph models base on your models code

dace

Django docs says we should put the ManyToManyField in one of our models only, but I wasn't able to find out why

thales-maciel

I think you have the 0..* explanation wrong, I'd like to be corrected if I'm wrong, but the 0..* means that a GENRE can exist without a BOOK, not that a BOOK can exist without a GENRE.

TheChronichalt

Can I email you a complex modeling question?

malikbrahimi

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