Do not fingerprint error reason

lib/error_tracker.ex

@@ -12,8 +12,20 @@ defmodule ErrorTracker do
   alias ErrorTracker.Repo
 
   def report(exception, stacktrace, given_context \\ %{}) do
+    {kind, reason} =
+      case exception do
+        %struct{} = ex when is_exception(ex) ->
+          {to_string(struct), Exception.message(ex)}
+
+        {_kind, %struct{} = ex} when is_exception(ex) ->
+          {to_string(struct), Exception.message(ex)}
+
+        {kind, ex} ->
+          {to_string(kind), to_string(ex)}
+      end
+
     {:ok, stacktrace} = ErrorTracker.Stacktrace.new(stacktrace)
-    {:ok, error} = Error.new(exception, stacktrace)
+    {:ok, error} = Error.new(kind, reason, stacktrace)
 
     context = Map.merge(get_context(), given_context)
 
@@ -24,7 +36,7 @@ defmodule ErrorTracker do
       )
 
     error
-    |> Ecto.build_assoc(:occurrences, stacktrace: stacktrace, context: context)
+    |> Ecto.build_assoc(:occurrences, stacktrace: stacktrace, context: context, reason: reason)
     |> Repo.insert!()
   end
 

lib/error_tracker/migrations/postgres/v01.ex

@@ -22,6 +22,7 @@ defmodule ErrorTracker.Migrations.Postgres.V01 do
 
     create table(:error_tracker_occurrences, prefix: prefix) do
       add :context, :map, null: false
+      add :reason, :text, null: false
       add :stacktrace, :map, null: false
       add :error_id, references(:error_tracker_errors, on_delete: :delete_all), null: false
 

lib/error_tracker/schemas/error.ex

@@ -22,24 +22,11 @@ defmodule ErrorTracker.Error do
     timestamps(type: :utc_datetime_usec)
   end
 
-  def new(exception, stacktrace = %ErrorTracker.Stacktrace{}) do
+  def new(kind, reason, stacktrace = %ErrorTracker.Stacktrace{}) do
     source = ErrorTracker.Stacktrace.source(stacktrace)
 
-    {kind, reason} =
-      case exception do
-        %struct{} = ex when is_exception(ex) ->
-          {to_string(struct), Exception.message(ex)}
-
-        {_kind, %struct{} = ex} when is_exception(ex) ->
-          {to_string(struct), Exception.message(ex)}
-
-        {kind, ex} ->
-          {to_string(kind), to_string(ex)}
-      end
-
     params = [
       kind: to_string(kind),
-      reason: reason,
       source_line: "#{source.file}:#{source.line}",
       source_function: "#{source.module}.#{source.function}/#{source.arity}"
     ]
@@ -48,6 +35,7 @@ defmodule ErrorTracker.Error do
 
     %__MODULE__{}
     |> Ecto.Changeset.change(params)
+    |> Ecto.Changeset.put_change(:reason, reason)
     |> Ecto.Changeset.put_change(:fingerprint, Base.encode16(fingerprint))
     |> Ecto.Changeset.put_change(:last_occurrence_at, DateTime.utc_now())
     |> Ecto.Changeset.apply_action(:new)

lib/error_tracker/schemas/occurrence.ex

@@ -10,6 +10,7 @@ defmodule ErrorTracker.Occurrence do
 
   schema "error_tracker_occurrences" do
     field :context, :map
+    field :reason, :string
 
     embeds_one :stacktrace, ErrorTracker.Stacktrace
     belongs_to :error, ErrorTracker.Error

lib/error_tracker/web/live/show.html.heex

@@ -16,7 +16,7 @@
 <div class="grid grid-cols-1 md:grid-cols-4 md:space-x-3 mt-6 gap-2">
   <div class="px-3 md:col-span-3 md:border-r-2 md:border-gray-500 space-y-8">
     <.section title="Full message">
-      <pre class="overflow-auto p-4 bg-gray-600"><%= @error.reason %></pre>
+      <pre class="overflow-auto p-4 bg-gray-600"><%= @occurrence.reason %></pre>
     </.section>
 
     <.section title="Source">