Hello guys! I’m developing an API only Phoenix project for pet donations, and at the moment i have the following schemas: User schema: schema "users" do field :name, :string field :email, :string field :bio, :string field :avatar, :string field :website, :string field :p…

First of all, ideally you should have a render file where you decide what shape the return will have, it should look the following (this one was generated using mix phx.gen.json Accounts User users name:string age:integer): defmodule PhoenixTestWeb.UserJSON do alias PhoenixTest.Accounts.User @…

I think you’ll need to show the code that is loading stuff from the database.

[image] caslu: when i insert a pet, breed or user everything looks fine, but when i trigger the show action on pets_controller the Jason complains that it’s unable to encode because of NotLoaded Association. This sounds like the same kind of issue I answered in another post recently. Ecto `c…

Just a regular Repo.get! function is enough to trigger the error

I’ve tried the derive on pets schema but had not successful at all, Jason still complained about the Not Loaded Association

[image] 03juan: @derive {Jason.Encoder, except: [:user, :breed]} above the schema "pets" declaration, I’m sorry, my code is actually incomplete, you also have to exclude the :__meta__ key or it fails with ** (RuntimeError) cannot encode metadata from the :__meta__ field. However it should hav…

You likely have this somewhere in your controller(s)? |> json(...)

It doesn’t because the problem is not with Ecto, just related, the problem is when Jason tries to encode it, at the moment my code snippet of pet schema is just like that: @derive {Jason.Encoder, except: [:user, :breed, :__meta__]} schema "pets" do field :name, :string field :size, :de…

Don’t mate, the show action of pet_controller looks just like the phoenix auto generate: def show(conn, %{"id" => id}) do pet = Announcements.get_pet!(id) render(conn, :show, pet: pet) end And the Announcements.get_pet!/1 is just a Repo.get!/1 call

[image] caslu: It doesn’t because the problem is not with Ecto, just related, the problem is when Jason tries to encode it Yes it’s because there is a NotLoaded value that you haven’t removed or replaced before Jason tries to encode it. [image] caslu: Even with the @derive clause, Jason …

OMG i totally forgot it, quite obvious actually, the data/1 function on pets was like this: %{ id: pet.id, name: pet.name, bio: pet.bio, photos: pet.photos, age: pet.age, gender: pet.gender, breed: pet.breed, species: pet.species, vaccinated: pe…

Jason encode when associations not loaded

Questions & Help Questions

03juan May 20, 2024, 2:17pm 11

Yes it’s because there is a NotLoaded value that you haven’t removed or replaced before Jason tries to encode it.

But this is very weird. What does your heex code look like?