Hi,
Is there an easier way to convert a list of structs to map. Extracting fields from the struct and in the nested struct and make it a map.
The list of struct:
[
%Kaiwa.Chat.Message{
__meta__: #Ecto.Schema.Metadata<:loaded, "messages">,
id: 1,
inserted_at: ~N[2020-04-03 11:46:24],
room: #Ecto.Association.NotLoaded<association :room is not loaded>,
room_id: 1,
text: "this is a test message",
updated_at: ~N[2020-04-03 11:46:24],
user: %Kaiwa.Accounts.User{
__meta__: #Ecto.Schema.Metadata<:loaded, "users">,
id: 1,
inserted_at: ~N[2020-04-02 04:10:00],
messages: #Ecto.Association.NotLoaded<association :messages is not loaded>,
name: "Mr Testing",
password: nil,
password_hash: "$argon2id$v=19$m=131072,t=8,p=4$26a9JgOy+rmuhjQ7WZD1bg$ZJe55e9UdfrWqm0E4rMnGFG7mA/Wyr7fWdi1f1tZP+8",
rooms: #Ecto.Association.NotLoaded<association :rooms is not loaded>,
updated_at: ~N[2020-04-02 04:10:00],
username: "test"
},
user_id: 1
}
]
My attempt:
Enum.map(messages, fn message ->
user = Map.from_struct(message.user)
%{
message_id: message.id,
text: message.text,
created_at: message.inserted_at,
user_id: user.id,
name: user.name
}
end)
Expected result:
[
%{
created_at: ~N[2020-04-03 11:46:24],
message_id: 1,
name: "Mr Testing",
text: "this is a test message",
user_id: 1
}
]
Is there a better way to achieve the expected result or my attempt is okay?
