Where is the best place for functions like (create/update)

Ilya · October 19, 2019, 7:43pm

Sorry I just started studying elixir/phoenix.
Where is the best place for functions like (create/update) in model or some custom module or something else.
Function for example:

def section_create() do
     changes = .....
     {:ok, result} =
       case Repo.get_by(Section, name: name) do
         nil  -> %Section{name: name, description: description}
         section -> section
       end
       |> Section.changeset(changes)
       |> Repo.insert_or_update
    {:ok, result}
   else
     err -> {:error, err}
 end

preciz · October 19, 2019, 7:46pm

github.com

hexpm/hexpm/blob/master/lib/hexpm/accounts/user.ex#L61


  |> validate_length(:username, min: 3)
  |> validate_format(:username, @username_regex)
  |> validate_exclusion(:username, @reserved_names)
  |> unique_constraint(:username, name: "users_username_idx")
end


def to_organization(user, organization) do
  change(user, %{password: nil, organization_id: organization.id})
end


def update_profile(user, params) do
  cast(user, params, ~w(full_name)a)
  |> cast_embed(:handles)
end


def update_password_no_check(user, params) do
  cast(user, params, ~w(password)a)
  |> validate_required(~w(password)a)
  |> validate_length(:password, min: 7)
  |> validate_confirmation(:password, message: "does not match password")
  |> update_change(:password, &Auth.gen_password/1)

This repository of hex.pm is full of examples.
Edit: check the above linked file user.ex and the users.ex in the same directory.