chore: toggle sub issue view and sub issue count in sub issues (#1312)

apiserver/plane/api/views/issue.py

@@ -259,7 +259,9 @@ class UserWorkSpaceIssues(BaseAPIView):
     def get(self, request, slug):
         try:
             issues = (
-                Issue.issue_objects.filter(assignees__in=[request.user], workspace__slug=slug)
+                Issue.issue_objects.filter(
+                    assignees__in=[request.user], workspace__slug=slug
+                )
                 .annotate(
                     sub_issues_count=Issue.issue_objects.filter(parent=OuterRef("id"))
                     .order_by()
@@ -582,6 +584,12 @@ class SubIssuesEndpoint(BaseAPIView):
                 .select_related("parent")
                 .prefetch_related("assignees")
                 .prefetch_related("labels")
+                .annotate(
+                    sub_issues_count=Issue.issue_objects.filter(parent=OuterRef("id"))
+                    .order_by()
+                    .annotate(count=Func(F("id"), function="Count"))
+                    .values("count")
+                )
             )
 
             state_distribution = (

apiserver/plane/utils/issue_filters.py

@@ -242,6 +242,18 @@ def filter_inbox_status(params, filter, method):
     return filter
 
 
+def filter_sub_issue_toggle(params, filter, method):
+    if method == "GET":
+        sub_issue = params.get("sub_issue", "false")
+        if sub_issue == "false":
+            filter["parent__isnull"] = True
+    else:
+        sub_issue = params.get("sub_issue", "false")
+        if sub_issue == "false":
+            filter["parent__isnull"] = True
+    return filter
+
+
 def issue_filters(query_params, method):
     filter = dict()
 
@@ -263,7 +275,8 @@ def issue_filters(query_params, method):
         "project": filter_project,
         "cycle": filter_cycle,
         "module": filter_module,
-        "inbox_status": filter_inbox_status
+        "inbox_status": filter_inbox_status,
+        "sub_issue": filter_sub_issue_toggle,
     }
 
     for key, value in ISSUE_FILTER.items():