Как бы сделать переменную error всегда равной строке? Это ноль почти во всех сценариях ios, и никогда не должно быть ноль. Во всех сценариях ios, где у меня есть строка, я хочу сделать error равным этой строке:
error = if user_product do
if user_product.voted_not_vegan && report do
"Whoops! You have already reported this product is not vegan"
end
if !user_product.voted_not_vegan && report do
changeset =
UserProduct.changeset(
user_product,
%{:voted_not_vegan => true}
)
case Api.Repo.update(changeset) do
{:ok, product} -> IO.puts("error")
{:error, changeset} -> IO.puts("error")
end
"Success! Reported not vegan"
changeset =
Product.changeset(
product,
%{:not_vegan_count => not_vegan_count + 1}
)
case Api.Repo.update(changeset) do
{:ok, product} -> IO.puts("error")
{:error, changeset} -> IO.puts("error")
end
end
IO.inspect(user_product, label: "userproduct")
IO.inspect(confirm, label: "confirm")
if user_product.voted_vegan && confirm do
"Whoops! You have already confirmed this product is vegan"
end
if !user_product.voted_vegan && confirm do
changeset =
Product.changeset(
product,
%{:vegan_count => vegan_count + 1}
)
case Api.Repo.update(changeset) do
{:ok, product_shop} -> IO.puts("error")
{:error, changeset} -> IO.puts("error")
end
"Success! Confirmed is vegan"
changeset =
UserProduct.changeset(
user_product,
%{:voted_vegan => true}
)
case Api.Repo.update(changeset) do
{:ok, product} -> IO.puts("error")
{:error, changeset} -> IO.puts("error")
end
end
else
IO.puts("insert user product")
UserProduct.insert_user_product(conn, %{
p_id: String.to_integer(pid),
u_id: uid,
voted_not_vegan: report,
voted_vegan: confirm
})
user_product =
from(up in UserProduct,
where: up.u_id == ^uid,
where: up.p_id == ^pid
)
|> Api.Repo.one()
if report do
changeset =
Product.changeset(
product,
%{:not_vegan_count => not_vegan_count + 1}
)
case Api.Repo.update(changeset) do
{:ok, product} -> IO.puts("error")
{:error, changeset} -> IO.puts("error")
end
changeset =
UserProduct.changeset(
user_product,
%{:voted_not_vegan => true}
)
case Api.Repo.update(changeset) do
{:ok, product} -> IO.puts("error")
{:error, changeset} -> IO.puts("error")
end
"Success! Reported not vegan"
end
Ниже приведена моя реализация ответа @Aleksei Matiushkin. Кажется, работает, хотя, возможно, отклонился от ответа.
@spec check_user_product(
usr_prduct :: %UserProduct{},
{report :: boolean(), confirm :: boolean()},
product :: %Product{}
) :: any()
defp check_user_product(user_product, report_confirm, product)
@doc """
User confirms product is vegan, when they have already done so.
"""
defp check_user_product(
%UserProduct{voted_vegan: true} = _usr_prduct,
{_, true} = _report_confirm,
_product
) do
"Whoops! You have already confirmed this product is vegan"
end
@doc """
User confirms product is vegan, when they have not already done so.
"""
defp check_user_product(
%UserProduct{voted_vegan: false} = usr_prduct,
{_, true} = _report_confirm,
product
) do
changeset =
Product.changeset(
product,
%{:vegan_count => product.vegan_count + 1}
)
case Api.Repo.update(changeset) do
{:ok, _} -> IO.puts("filler")
{:error, _} -> IO.puts("filler")
end
changeset =
UserProduct.changeset(
usr_prduct,
%{:voted_vegan => true}
)
case Api.Repo.update(changeset) do
{:ok, _} -> IO.puts("filler")
{:error, _} -> IO.puts("filler")
end
"Success! Confirmed is vegan"
end
@doc """
User reports product is not vegan, when they have already done so.
"""
defp check_user_product(
%UserProduct{voted_not_vegan: true} = _usr_prduct,
{true, _} = _report_confirm,
_product
),
do: "Whoops! You have already reported this product is not vegan"
@doc """
User reports product is not vegan, when they haven't already done so.
"""
defp check_user_product(
%UserProduct{voted_not_vegan: false} = usr_prduct,
{true, _} = _report_confirm,
product
) do
changeset =
UserProduct.changeset(
usr_prduct,
%{:voted_not_vegan => true}
)
case Api.Repo.update(changeset) do
{:ok, _} -> IO.puts("filler")
{:error, _} -> IO.puts("filler")
end
changeset =
Product.changeset(
product,
%{:not_vegan_count => product.not_vegan_count + 1}
)
case Api.Repo.update(changeset) do
{:ok, _} -> IO.puts("filler")
{:error, _} -> IO.puts("filler")
end
"Success! Reported not vegan"
end
def put_product_is_vegan(conn) do
product = Api.Product |> Api.Repo.get(conn.query_params["p_id"])
confirm = parse_elem(conn.body_params["confirm"])
report = parse_elem(conn.body_params["report"])
uid = conn.query_params["u_id"]
pid = conn.query_params["p_id"]
user_product =
from(usr_prduct in Api.UserProduct,
where: usr_prduct.u_id == ^uid,
where: usr_prduct.p_id == ^pid
)
|> Api.Repo.one()
user_product =
if !user_product do
UserProduct.insert_user_product(conn, %{
p_id: String.to_integer(pid),
u_id: uid,
voted_not_vegan: false,
voted_vegan: false
})
user_product =
from(usr_prduct in UserProduct,
where: usr_prduct.u_id == ^uid,
where: usr_prduct.p_id == ^pid
)
|> Api.Repo.one()
user_product
else
user_product
end
error = check_user_product(user_product, {report, confirm}, product)
product = Api.Repo.get_by(Product, id: pid)
IO.inspect(error, label: "errors")
conn
|> put_resp_content_type("application/json")
|> send_resp(
200,
Poison.encode!(%{
successs: "success",
product: product,
errors: error
})
)
end