[WEB - 466] perf: improve performance for cycle and module endpoints

apiserver/plane/app/serializers/__init__.py

@@ -72,6 +72,7 @@
 )
 
 from .module import (
+    ModuleDetailSerializer,
     ModuleWriteSerializer,
     ModuleSerializer,
     ModuleIssueSerializer,

apiserver/plane/app/serializers/cycle.py

@@ -3,18 +3,14 @@
 
 # Module imports
 from .base import BaseSerializer
-from .user import UserLiteSerializer
 from .issue import IssueStateSerializer
-from .workspace import WorkspaceLiteSerializer
-from .project import ProjectLiteSerializer
 from plane.db.models import (
     Cycle,
     CycleIssue,
     CycleFavorite,
     CycleUserProperties,
 )
 
-
 class CycleWriteSerializer(BaseSerializer):
     def validate(self, data):
         if (
@@ -30,65 +26,57 @@ def validate(self, data):
     class Meta:
         model = Cycle
         fields = "__all__"
+        read_only_fields = [
+            "workspace",
+            "project",
+            "owned_by",
+        ]
 
 
 class CycleSerializer(BaseSerializer):
+    # favorite
     is_favorite = serializers.BooleanField(read_only=True)
     total_issues = serializers.IntegerField(read_only=True)
+    # state group wise distribution
     cancelled_issues = serializers.IntegerField(read_only=True)
     completed_issues = serializers.IntegerField(read_only=True)
     started_issues = serializers.IntegerField(read_only=True)
     unstarted_issues = serializers.IntegerField(read_only=True)
     backlog_issues = serializers.IntegerField(read_only=True)
-    assignees = serializers.SerializerMethodField(read_only=True)
-    total_estimates = serializers.IntegerField(read_only=True)
-    completed_estimates = serializers.IntegerField(read_only=True)
-    started_estimates = serializers.IntegerField(read_only=True)
-    workspace_detail = WorkspaceLiteSerializer(
-        read_only=True, source="workspace"
-    )
-    project_detail = ProjectLiteSerializer(read_only=True, source="project")
-    status = serializers.CharField(read_only=True)
-
-    def validate(self, data):
-        if (
-            data.get("start_date", None) is not None
-            and data.get("end_date", None) is not None
-            and data.get("start_date", None) > data.get("end_date", None)
-        ):
-            raise serializers.ValidationError(
-                "Start date cannot exceed end date"
-            )
-        return data
-
-    def get_assignees(self, obj):
-        members = [
-            {
-                "avatar": assignee.avatar,
-                "display_name": assignee.display_name,
-                "id": assignee.id,
-            }
-            for issue_cycle in obj.issue_cycle.prefetch_related(
-                "issue__assignees"
-            ).all()
-            for assignee in issue_cycle.issue.assignees.all()
-        ]
-        # Use a set comprehension to return only the unique objects
-        unique_objects = {frozenset(item.items()) for item in members}
 
-        # Convert the set back to a list of dictionaries
-        unique_list = [dict(item) for item in unique_objects]
+    # active | draft | upcoming | completed
+    status = serializers.CharField(read_only=True)
 
-        return unique_list
 
     class Meta:
         model = Cycle
-        fields = "__all__"
-        read_only_fields = [
-            "workspace",
-            "project",
-            "owned_by",
+        fields = [
+            # necessary fields
+            "id",
+            "workspace_id",
+            "project_id",
+            # model fields
+            "name",
+            "description",
+            "start_date",
+            "end_date",
+            "owned_by_id",
+            "view_props",
+            "sort_order",
+            "external_source",
+            "external_id",
+            "progress_snapshot",
+            # meta fields
+            "is_favorite",
+            "total_issues",
+            "cancelled_issues",
+            "completed_issues",
+            "started_issues",
+            "unstarted_issues",
+            "backlog_issues",
+            "status",
         ]
+        read_only_fields = fields
 
 
 class CycleIssueSerializer(BaseSerializer):

apiserver/plane/app/serializers/module.py

@@ -5,7 +5,6 @@
 from .base import BaseSerializer, DynamicBaseSerializer
 from .user import UserLiteSerializer
 from .project import ProjectLiteSerializer
-from .workspace import WorkspaceLiteSerializer
 
 from plane.db.models import (
     User,
@@ -19,17 +18,18 @@
 
 
 class ModuleWriteSerializer(BaseSerializer):
-    members = serializers.ListField(
+    lead_id = serializers.PrimaryKeyRelatedField(
+        source="lead",
+        queryset=User.objects.all(),
+        required=False,
+        allow_null=True,
+    )
+    member_ids = serializers.ListField(
         child=serializers.PrimaryKeyRelatedField(queryset=User.objects.all()),
         write_only=True,
         required=False,
     )
 
-    project_detail = ProjectLiteSerializer(source="project", read_only=True)
-    workspace_detail = WorkspaceLiteSerializer(
-        source="workspace", read_only=True
-    )
-
     class Meta:
         model = Module
         fields = "__all__"
@@ -44,7 +44,9 @@ class Meta:
 
     def to_representation(self, instance):
         data = super().to_representation(instance)
-        data["members"] = [str(member.id) for member in instance.members.all()]
+        data["member_ids"] = [
+            str(member.id) for member in instance.members.all()
+        ]
         return data
 
     def validate(self, data):
@@ -59,12 +61,10 @@ def validate(self, data):
         return data
 
     def create(self, validated_data):
-        members = validated_data.pop("members", None)
-
+        members = validated_data.pop("member_ids", None)
         project = self.context["project"]
 
         module = Module.objects.create(**validated_data, project=project)
-
         if members is not None:
             ModuleMember.objects.bulk_create(
                 [
@@ -85,7 +85,7 @@ def create(self, validated_data):
         return module
 
     def update(self, instance, validated_data):
-        members = validated_data.pop("members", None)
+        members = validated_data.pop("member_ids", None)
 
         if members is not None:
             ModuleMember.objects.filter(module=instance).delete()
@@ -142,7 +142,6 @@ class Meta:
 
 
 class ModuleLinkSerializer(BaseSerializer):
-    created_by_detail = UserLiteSerializer(read_only=True, source="created_by")
 
     class Meta:
         model = ModuleLink
@@ -170,12 +169,9 @@ def create(self, validated_data):
 
 
 class ModuleSerializer(DynamicBaseSerializer):
-    project_detail = ProjectLiteSerializer(read_only=True, source="project")
-    lead_detail = UserLiteSerializer(read_only=True, source="lead")
-    members_detail = UserLiteSerializer(
-        read_only=True, many=True, source="members"
+    member_ids = serializers.ListField(
+        child=serializers.UUIDField(), required=False, allow_null=True
     )
-    link_module = ModuleLinkSerializer(read_only=True, many=True)
     is_favorite = serializers.BooleanField(read_only=True)
     total_issues = serializers.IntegerField(read_only=True)
     cancelled_issues = serializers.IntegerField(read_only=True)
@@ -186,15 +182,46 @@ class ModuleSerializer(DynamicBaseSerializer):
 
     class Meta:
         model = Module
-        fields = "__all__"
-        read_only_fields = [
-            "workspace",
-            "project",
-            "created_by",
-            "updated_by",
+        fields = [
+            # Required fields
+            "id",
+            "workspace_id",
+            "project_id",
+            # Model fields
+            "name",
+            "description",
+            "description_text",
+            "description_html",
+            "start_date",
+            "target_date",
+            "status",
+            "lead_id",
+            "member_ids",
+            "view_props",
+            "sort_order",
+            "external_source",
+            "external_id",
+            # computed fields
+            "is_favorite",
+            "total_issues",
+            "cancelled_issues",
+            "completed_issues",
+            "started_issues",
+            "unstarted_issues",
+            "backlog_issues",
             "created_at",
             "updated_at",
         ]
+        read_only_fields = fields
+
+
+
+class ModuleDetailSerializer(ModuleSerializer):
+
+    link_module = ModuleLinkSerializer(read_only=True, many=True)
+
+    class Meta(ModuleSerializer.Meta):
+        fields = ModuleSerializer.Meta.fields + ['link_module']
 
 
 class ModuleFavoriteSerializer(BaseSerializer):

apiserver/plane/app/urls/issue.py

@@ -2,6 +2,7 @@
 
 
 from plane.app.views import (
+    IssueListEndpoint,
     IssueViewSet,
     LabelViewSet,
     BulkCreateIssueLabelsEndpoint,
@@ -25,6 +26,11 @@
 
 
 urlpatterns = [
+    path(
+        "workspaces/<str:slug>/projects/<uuid:project_id>/issues/list/",
+        IssueListEndpoint.as_view(),
+        name="project-issue",
+    ),
     path(
         "workspaces/<str:slug>/projects/<uuid:project_id>/issues/",
         IssueViewSet.as_view(

apiserver/plane/app/views/__init__.py

@@ -67,6 +67,7 @@
 )
 from .asset import FileAssetEndpoint, UserAssetsEndpoint, FileAssetViewSet
 from .issue import (
+    IssueListEndpoint,
     IssueViewSet,
     WorkSpaceIssuesEndpoint,
     IssueActivityEndpoint,