fix error in gitignore

apps/workflows/serializers.py

@@ -0,0 +1,34 @@
+from rest_framework import serializers
+
+from apps.workflows.models import Workflow, WorkflowStep, WorkflowTransition, WorkflowVersion
+
+
+class WorkflowStepSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = WorkflowStep
+        fields = "__all__"
+        read_only_fields = ["id"]
+
+
+class WorkflowTransitionSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = WorkflowTransition
+        fields = "__all__"
+        read_only_fields = ["id"]
+
+
+class WorkflowVersionSerializer(serializers.ModelSerializer):
+    steps = WorkflowStepSerializer(many=True, read_only=True)
+    transitions = WorkflowTransitionSerializer(many=True, read_only=True)
+
+    class Meta:
+        model = WorkflowVersion
+        fields = "__all__"
+
+
+class WorkflowSerializer(serializers.ModelSerializer):
+    active_version = WorkflowVersionSerializer(read_only=True)
+
+    class Meta:
+        model = Workflow
+        fields = "__all__"