Hi there!
I am writing a new option for `has_many` associations. It generates
additionnal has_many for each given association scope.
# Before
has_many :posts
has_many :published_posts, -> { published }, class_name: "Post"
# After
has_many :posts, new_option: [:published]
*Why*
In my rails projects, I really often write a lot of `has_many` variations
to be able to use fine-grained preload. Eg:
`Author.all.preload(:published_post).each do [...]`.
It would be handful to have syntaxic sugar to shorten all theses `has_many`
*What I've done*
https://github.com/Bahanix/rails/commit/15ec54d175a8936e8f1017a77a160760c8fb92a2
I am very unsure about my `compose` option name (I am not a native english
speaker).
Does the feature seems useful to you / relevant for an ActiveRecord PR?
Thank you for reading :)
Julien Grillot
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