I changed for this:
def changeset(desk, attrs) do
desk
|> cast(attrs, [:name, :photo_urls])
|> validate_empty_photo_urls()
|> validate_required([:name])
end
def validate_empty_photo_urls(changeset) do
photos = get_field(changeset, :photo_urls)
if (photos == []) do
put_change(changeset, :photo_urls, "must insert a photo!")
else
changeset
end
end
And when I try i can know receive an Ecto.ChangeError on the log and stop to submit and not save the data.
The log when I try is this:
[error] GenServer #PID<0.671.0> terminating
** (Ecto.ChangeError) value `"must insert a photo!"` for `LiveViewStudio.Desks.Desk.photo_urls` in `insert` does not match type {:array, :string}
(ecto 3.5.6) lib/ecto/repo/schema.ex:889: Ecto.Repo.Schema.dump_field!/6
(ecto 3.5.6) lib/ecto/repo/schema.ex:898: anonymous fn/6 in Ecto.Repo.Schema.dump_fields!/5
(stdlib 3.14) maps.erl:233: :maps.fold_1/3
(ecto 3.5.6) lib/ecto/repo/schema.ex:896: Ecto.Repo.Schema.dump_fields!/5
(ecto 3.5.6) lib/ecto/repo/schema.ex:829: Ecto.Repo.Schema.dump_changes!/6
(ecto 3.5.6) lib/ecto/repo/schema.ex:255: anonymous fn/15 in Ecto.Repo.Schema.do_insert/4
(live_view_studio 0.1.0) lib/live_view_studio/desks.ex:55: LiveViewStudio.Desks.create_desk/3
(live_view_studio 0.1.0) lib/live_view_studio_web/live/desks_live.ex:46: LiveViewStudioWeb.DesksLive.handle_event/3
(phoenix_live_view 0.15.4) lib/phoenix_live_view/channel.ex:338: anonymous fn/3 in Phoenix.LiveView.Channel.view_handle_event/3
(telemetry 0.4.2) /Users/romenigld/workspace/phoenix/phoenix_live_view/pragprog/my_code/live-view-studio/deps/telemetry/src/telemetry.erl:262: :telemetry.span/3
(phoenix_live_view 0.15.4) lib/phoenix_live_view/channel.ex:203: Phoenix.LiveView.Channel.handle_info/2
(stdlib 3.14) gen_server.erl:689: :gen_server.try_dispatch/4
(stdlib 3.14) gen_server.erl:765: :gen_server.handle_msg/6
(stdlib 3.14) proc_lib.erl:236: :proc_lib.wake_up/3
Last message: %Phoenix.Socket.Message{event: "event", join_ref: "30", payload: %{"event" => "save", "type" => "form", "value" => "_csrf_token=MhYKJTM6IjQPJg0SCC0_Yz5REx91BwcaZlrjvbpbGNIzCky6k0dp402q&desk%5Bname%5D=testing"}, ref: "44", topic: "lv:phx-FnfspaamCei_owGE"}
State: %{components: {%{}, %{}, 1}, join_ref: "30", serializer: Phoenix.Socket.V2.JSONSerializer, socket: #Phoenix.LiveView.Socket<assigns: %{changeset: #Ecto.Changeset<action: :insert, changes: %{name: "testing", photo_urls: "must insert a photo!"}, errors: [], data: #LiveViewStudio.Desks.Desk<>, valid?: true>, desks: [], flash: %{}, live_action: nil, uploads: %{__phoenix_refs_to_names__: %{"phx-Fnfs0wpIbWDZCwDB" => :photo}, photo: #Phoenix.LiveView.UploadConfig<...>}}, changed: %{}, endpoint: LiveViewStudioWeb.Endpoint, id: "phx-FnfspaamCei_owGE", parent_pid: nil, root_pid: #PID<0.671.0>, router: LiveViewStudioWeb.Router, view: LiveViewStudioWeb.DesksLive, ...>, topic: "lv:phx-FnfspaamCei_owGE", transport_pid: #PID<0.660.0>, upload_names: %{}, upload_pids: %{}}
[debug] QUERY OK source="desks" db=1.9ms idle=1616.9ms
SELECT d0."id", d0."name", d0."photo_urls", d0."inserted_at", d0."updated_at" FROM "desks" AS d0 ORDER BY d0."id" DESC []
Know just need to insert the message on errors.
