fix: raise better error on invalid filter values

closes #154

We still want to build something better directly into `Ash.Filter`
that determines field types and casts them up front

lib/data_layer.ex

@@ -1313,6 +1313,15 @@ defmodule AshPostgres.DataLayer do
     end
   end
 
+  defp handle_raised_error(%Ecto.Query.CastError{} = e, stacktrace, context, resource) do
+    handle_raised_error(
+      Ash.Error.Query.InvalidFilterValue.exception(value: e.value, context: context),
+      stacktrace,
+      context,
+      resource
+    )
+  end
+
   defp handle_raised_error(error, stacktrace, _context, _resource) do
     {:error, Ash.Error.to_ash_error(error, stacktrace)}
   end

test/filter_test.exs

@@ -18,6 +18,16 @@ defmodule AshPostgres.FilterTest do
     end
   end
 
+  describe "invalid uuid" do
+    test "with an invalid uuid, an invalid error is raised" do
+      assert_raise Ash.Error.Invalid, fn ->
+        Post
+        |> Ash.Query.filter(id == "foo")
+        |> Api.read!()
+      end
+    end
+  end
+
   describe "citext validation" do
     setup do
       on_exit(fn ->