joins(*args)
Instance Public methods
Performs a joins on args:
1 2 | User.joins(:posts)=> SELECT "users".* FROM "users" INNER JOIN "posts" ON "posts"."user_id" = "users"."id" |
You can use strings in order to customize your joins:
1 2 | User.joins("LEFT JOIN bookmarks ON bookmarks.bookmarkable_type = 'Post' AND bookmarks.user_id = users.id")=> SELECT "users".* FROM "users" LEFT JOIN bookmarks ON bookmarks.bookmarkable_type = 'Post' AND bookmarks.user_id = users.id |
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