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ytnobody/ecto-select-count-groupby.exs

Created December 2, 2019 06:12
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[Ecto] SELECT bookshelf.id AS bookshelf_id, COUNT(book.id) AS books_count FROM bookshelf JOIN book ON bookshelf.id = book.bookshelf_id GROUP BY bookshelf.id
Raw
ecto-select-count-groupby.exs
from(bookshelf in Bookshelf,
join: book in Book, on bookshelf.id == book.bookshelf_id,
group_by: bookshelf.id,
select: %{bookshelf_id: bookshelf.id, books_count: count(book.id)}
) |> Repo.all()
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