Ash Framework•2w ago

how to config user_id inside PaperTrail

Hi, sorry. based on this doc https://hexdocs.pm/ash_paper_trail/getting-started-with-ash-paper-trail.html#associating-versions-with-actors i configured my resource like these code, but when i see the user_id in Version with Ash.read all of them is nil

  paper_trail do
    primary_key_type :uuid_v7
    change_tracking_mode(:snapshot)
    store_action_name?(true)
    store_action_inputs?(true)
    ignore_attributes([:inserted_at, :updated_at, :archived_at])
    ignore_actions [:unarchive, :permanent_destroy]
    attributes_as_attributes([:site_id])
    create_version_on_destroy?(true)
    only_when_changed?(true)
    relationship_opts(public?: true)
    belongs_to_actor(:user, MishkaCms.Accounts.User, domain: MishkaCms.Accounts)
    mixin({MishkaCms.Runtime.Resources.Mixins.LayoutPaperTrailMixin, :postgres, []})
  end

  paper_trail do
    primary_key_type :uuid_v7
    change_tracking_mode(:snapshot)
    store_action_name?(true)
    store_action_inputs?(true)
    ignore_attributes([:inserted_at, :updated_at, :archived_at])
    ignore_actions [:unarchive, :permanent_destroy]
    attributes_as_attributes([:site_id])
    create_version_on_destroy?(true)
    only_when_changed?(true)
    relationship_opts(public?: true)
    belongs_to_actor(:user, MishkaCms.Accounts.User, domain: MishkaCms.Accounts)
    mixin({MishkaCms.Runtime.Resources.Mixins.LayoutPaperTrailMixin, :postgres, []})
  end

and my mixin is

  def postgres do
    quote do
      postgres do
        table "layout_versions"
        repo MishkaCms.Repo

        references do
          reference :version_source, on_delete: :delete
        end
      end

      actions do
        read :get_any do
          get? true
          multitenancy :bypass
        end
      end
    end
  end

  def postgres do
    quote do
      postgres do
        table "layout_versions"
        repo MishkaCms.Repo

        references do
          reference :version_source, on_delete: :delete
        end
      end

      actions do
        read :get_any do
          get? true
          multitenancy :bypass
        end
      end
    end
  end

Update for Example:

fresh_layout = Ash.get!(MishkaCms.Runtime.Layout, layout_id, action: :get_any, authorize?: false)

    fresh_layout
    |> Ash.Changeset.for_update(:update, %{
      description: "Simple main layout with navigation V#{item}"
    })
    |> Ash.update!(tenant: site.id, actor: none_user)

fresh_layout = Ash.get!(MishkaCms.Runtime.Layout, layout_id, action: :get_any, authorize?: false)

    fresh_layout
    |> Ash.Changeset.for_update(:update, %{
      description: "Simple main layout with navigation V#{item}"
    })
    |> Ash.update!(tenant: site.id, actor: none_user)

It has extra config i did not inside my code? Thank you in advance

6 Replies

sevenseacat•2w ago

so what's none_user and what does the generated version look like when you read it?

ShahryarOP•2w ago

Hi @Rebecca It is none user, i use simple get

none_user =
  MishkaCms.Accounts.User
  |> Ash.Query.filter(email == "none@example.com")
  |> Ash.read_one!(authorize?: false)

none_user =
  MishkaCms.Accounts.User
  |> Ash.Query.filter(email == "none@example.com")
  |> Ash.read_one!(authorize?: false)

Version output:

%MishkaCms.Runtime.Layout.Version{
     id: "0199762d-6648-7288-a854-33803d8799cf",
     version_action_type: :create,                                                   
     version_action_name: :create,                                                   
     version_action_inputs: %{...},
     site_id: "0e078349-517c-40ca-96fa-da0f0156a7c1",
     version_source_id: "2cc4f20c-7d19-42bd-af15-458ad66b16da",
     changes: %{...}
     },
     version_inserted_at: ~U[2025-09-23 10:45:10.856184Z],
     version_updated_at: ~U[2025-09-23 10:45:10.856184Z],                            
     user_id: nil,
     version_source: #Ash.NotLoaded<:relationship, field: :version_source>,
     user: #Ash.NotLoaded<:relationship, field: :user>,                              
     __meta__: #Ecto.Schema.Metadata<:loaded, "layout_versions">
   }
 ]}

%MishkaCms.Runtime.Layout.Version{
     id: "0199762d-6648-7288-a854-33803d8799cf",
     version_action_type: :create,                                                   
     version_action_name: :create,                                                   
     version_action_inputs: %{...},
     site_id: "0e078349-517c-40ca-96fa-da0f0156a7c1",
     version_source_id: "2cc4f20c-7d19-42bd-af15-458ad66b16da",
     changes: %{...}
     },
     version_inserted_at: ~U[2025-09-23 10:45:10.856184Z],
     version_updated_at: ~U[2025-09-23 10:45:10.856184Z],                            
     user_id: nil,
     version_source: #Ash.NotLoaded<:relationship, field: :version_source>,
     user: #Ash.NotLoaded<:relationship, field: :user>,                              
     __meta__: #Ecto.Schema.Metadata<:loaded, "layout_versions">
   }
 ]}

full output: https://gist.github.com/shahryarjb/0543de98c2c71f9b60ca61a05530f5a0

sevenseacat•2w ago

I'm wondering if its an authorization issue

ShahryarOP•2w ago

it lets Record changed, but dose not allow it to put user id inside the field? and even with authorize?: false ?

sevenseacat•2w ago

you're not using authorize?: false when creating the version record. I think I remember seeing something like this, where you need users to be able to read their own records to be able to relate them

ShahryarOP•2w ago

i tested with this too

fresh_layout = Ash.get!(MishkaCms.Runtime.Layout, layout_id, action: :get_any, authorize?: false)

    fresh_layout
    |> Ash.Changeset.for_update(:update, %{
      description: "Simple main layout with navigation V#{item}"
    })
    |> Ash.update!(tenant: site.id, actor: none_user, authorize?: false)

fresh_layout = Ash.get!(MishkaCms.Runtime.Layout, layout_id, action: :get_any, authorize?: false)

    fresh_layout
    |> Ash.Changeset.for_update(:update, %{
      description: "Simple main layout with navigation V#{item}"
    })
    |> Ash.update!(tenant: site.id, actor: none_user, authorize?: false)

but it is not diffrent, both of them user_id is nil inside Version! I have no idea about it why! 🥲

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how to config user_id inside PaperTrail

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