[arrowsmith]

I wouldn't have believed you until I moved from ActiveRecord (Rails's ORM) to Ecto (Elixir/Phoenix's data mapping library which is decidedly not an ORM.) It's a million times better and I'm never going back.

[atonse]

Ecto is hands down my favorite part of the elixir ecosystem.

It’s so elegant and the Lego blocks (query, schema, change set, repo) can be mixed and matched in different ways.

I’ve even used schemas and change sets to validate API requests and trivially provide very nice, clean, and specific errors, while getting perfectly typed structs when things are validated.

[cultofmetatron]

same, I wish more libraries would go the ecto design route. my ecto queries map pretty close to 1:1 with the sql counterpart. no guessing what the output is going to look like. I spend my time debugging the query and not trying to get the orm to output he query I want.

[freedomben]

Yes, same experience here. I felt (and still feel) that ActiveRecord is one of if not the best ORMs out there, but it was always a source of debugging and performance optimizations/pain, and the trick was basically taking hand-written SQL and trying to get ActiveRecord to generate that. After briefly moving to node.js full time I actually got very anti-ORM, although query building libraries all sucked too which left me unsure of what the best approach is.

Then I learned Ecto/Phoenix and this is truly the best way. Ecto is so close and translateable to raw SQL that there's little to no friction added by it, but it handles all the stuff you don't want to have to do by hand (like query building, parameterization, etc). Ecto is a real breath of fresh air and I find myself writing quick scripts that hit a database in Elixir just so I can use Ecto! I also love how easy Ecto makes it to model database tables that were originally defined by another language/framework or even by hand. Trying to do that with ActiveRecord or another ORM is usually a recipe for extreme pain, but with Ecto it's so easy.

[arrowsmith]

Yeah, I hear some people say that they find Ecto.Query confusing, and I think it's because they never learned SQL properly. That's understandable because it's possible to use something like ActiveRecord for years without ever learning to write even a simple SQL query. But if you have a good grasp of SQL then Ecto.Query is trivial to learn - it's basically just SQL in Elixir syntax.

[cultofmetatron]

> it's basically just SQL in Elixir syntax.

its sql in elixir syntax with a bunch of QOL improvements.

for one thing, I can seperate my subqueries into separate variables

``` sub_q = from(l in Like) |> where([l], l.user_id == ^user_id) |> select([l], %{ user_id: l.user_id, likes_count: count(l.id) }) |> group_by([l], l.user_id)

main_query = from(u in User) |> join(:left, [u], likes_count in ^subquery(sub_q), on: likes_count.user_id == u.id, as: :likes_count) |> select([u, likes_count: l], %{ name: u.name, likes: l.likes_count, }) |> where([u], u.id == ^user_id)

user = main_query |> Repo.one()

```

Being able to think directly in sql lets you perform optimal queries once you understand sql. and imho, this much cleaner than tha equivalen sql to write. it also takes care of input sanatization and bindings.