fall_through_ecto_query.ex

# Without EctoDripper
defmodule QueryModule do
  def query_status(query, args)
  def query_status(query, %{username: username}) do
    # Create query when username key is in args
    # Since we have the key already in the function name,
    # I find this quite pointless in terms of readability
    from(
      thing in query,
      where: thing.username == ^username
    )
  end
  def query_status(query, _args) do
    # Let the query "fall through" if no username key in args
    query
  end
end

# With EctoDripper
defmodule QueryModule do
  use EctoDripper,
    composable_queries: [
      [:username, :my_username_func]
    ]
    
  def my_username_func(queryable, args) do
    # args only include username, because I specified that in my queries.
    # No need to pattern match
    from(
      thing in query,
      where: thing.username == ^username
    )
  end
end