Can you recommend any recent example Phoenix app which makes use of model associations? Unfortunately all the example apps I could google up no longer compile due to obsolete dependencies.
Check out the hex_web app
There are some listed in our wiki:
(If you find anymore, please add them 
)
Many thanks! That’s a lot to study. I will take a look at them. But I think a truly minimal example would be useful as well, especially for the newbies.
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Have you got any of the Elixir the books? They really are incredibly well written - we are very lucky to have such fantastic learning material 
Here is a trick I use to discover more use examples of various functions.
Let’s say you need to learn how people use build_assoc. You go to github.com and search for build_assoc(
In the results page, on the left hand select “Code” and then select elixir. It will return plenty of code. Mostly phoenix apps.
This might be common sense but I recently discovered it and it helped me tremendously.
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Besides the already mentioned Changelog app I like too peek at
Vutuv: https://github.com/vutuv/vutuv
ClassLab: https://github.com/classlab/classlab
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