I am trying to get users by email. Getting merge function does not exist, even I didn't write the merge function.
Code
def get_user_by_email(email) do
User
|> preload(:exchange_accounts)
|> preload(:pos_account)
|> Repo.all(from u in User, where: u.email == ^email)
end
Error
iex(58)> AAK.POS.HelperFunction.get_user_by_email("[email protected]")
** (FunctionClauseError) no function clause matching in Keyword.merge/2
The following arguments were given to Keyword.merge/2:
# 1
[]
# 2
#Ecto.Query<from u0 in AAK.Accounts.User,
where: u0.email == ^"[email protected]">
Attempted function clauses (showing 3 out of 3):
def merge(keywords1, []) when is_list(keywords1)
def merge([], keywords2) when is_list(keywords2)
def merge(keywords1, keywords2) when is_list(keywords1) and is_list(keywords2)
(elixir 1.11.1) lib/keyword.ex:764: Keyword.merge/2
(aak 0.1.0) lib/aak/repo.ex:4: AAK.Repo.all/2
CodePudding user response:
One should either use Ecto.Query.preload/3
with a query, or Ecto.Repo.preload/3
with a struct, but not the mixture.
Below is the variant with a query.
def get_user_by_email(email) do
Repo.all(
from u in User,
where: u.email == ^email,
preload: ~w|exchange_accounts pos_account|a
)
end