Fix `Relation passed to #and must be structurally compatible. Incompatible values: [:joins] (ArgumentError)`
exception in `ordfav:evazion ratio:4:3` search. Broken by e849d8f1c.
We were effectively doing this:
q1 = Post.joins(:favorites, :media_asset).where("favorites.user_id = ?", 52664).order("favorites.id DESC")
q2 = Post.joins(:media_asset, :favorites).where("ROUND(media_assets.image_width::numeric / media_assets.image_height::numeric, 2) = 1.33")
q3 = q1.and(q2)
This failed because Rails didn't like the fact that the joins were in a different order when the
queries were `and`-ed together.
This directory contains library code used through Danbooru. This includes things like defining API clients, dealing with
sources, parsing tag searches, storing and resizing images, and so on.
Many of the files here use the Service Object pattern. Instead of putting complex code in models or controllers, it goes
here, in plain old Ruby objects (POROs). This keeps models and controllers simpler, and keeps domain logic isolated and
independent from the database and the HTTP request cycle.