siddhant3030

siddhant3030

How can I write a raw sql query?

Hi,

I have to write a raw query for one of my project. But till now I have used ecto queries and don’t have much experience writing raw queries in phoenix. So to understand

I have created a user schema that inserts an email in a database table.

So created the changeset the like this

def changeset(user, attrs) do
user
|> cast(attrs, [:email, :password])
end

Now I have a create function that I’m using in my model. So the model will basically talk to db.

def create_user(attrs \\ %{}) do
    %User{}
    |> User.changeset(attrs)
    |> Repo.insert()
end

I have inserted an email in my database. using this
iex(1) > user = User.changeset(%User{}, %{email: “”, password: “”})

Now what I want is to find that user by his email address.
Also If I wanted to fetch through id. I would just do this

def get_user!(id), do: Repo.get!(User, id)

But what if I want to write a raw query? How do I do that?

Marked As Solved

sribe

sribe

Ah! Seeing your result, I maybe see your problem. You’re expected the $1 inside the quotes to get replaced with the argument? Maybe what you actually want is:

Ecto.Adapters.SQL.query(Wizex.Repo, "SELECT * FROM game WHERE name ILIKE $1", [name <> "%"])

Also Liked

kokolegorille

kokolegorille

You might also have a look at…

https://hexdocs.pm/ecto_sql/Ecto.Adapters.SQL.html#query!/4

…for raw queries

al2o3cr

al2o3cr

FWIW, you can do this with Repo.get_by(User, email: email_to_find).

benwilson512

benwilson512

Author of Craft GraphQL APIs in Elixir with Absinthe

The best place to start is always the docs. Hint: it’s a function inside this module Ecto.Repo — Ecto v3.11.1

benwilson512

benwilson512

Author of Craft GraphQL APIs in Elixir with Absinthe

Ah yeah, I’m realizing my post wasn’t super helpful because query! isn’t actually in the Repo docs :grimacing:, it’s just added inside repos that actually use SQL adapters. That’s unfortunate.

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