feat: page and page-blocks (#468)

* dev: initiate paper models

* feat: page and page-blocks

* dev: page id filter for page blocks

apiserver/plane/api/views/__init__.py

@@ -109,3 +109,5 @@ from .importer import (
     UpdateServiceImportStatusEndpoint,
     BulkImportIssuesEndpoint,
 )
+
+from .page import PageViewSet, PageBlockViewSet, PageFavoriteViewSet, CreateIssueFromPageBlockEndpoint

apiserver/plane/api/views/page.py

@@ -0,0 +1,184 @@
+# Django imports
+from django.db import IntegrityError
+from django.db.models import Exists, OuterRef, Q
+
+# Third party imports
+from rest_framework import status
+from rest_framework.response import Response
+from sentry_sdk import capture_exception
+
+# Module imports
+from .base import BaseViewSet, BaseAPIView
+from plane.api.permissions import ProjectEntityPermission
+from plane.db.models import (
+    Page,
+    PageBlock,
+    PageFavorite,
+    Issue,
+    IssueAssignee,
+    IssueActivity,
+)
+from plane.api.serializers import (
+    PageSerializer,
+    PageBlockSerializer,
+    PageFavoriteSerializer,
+    IssueSerializer,
+)
+
+
+class PageViewSet(BaseViewSet):
+    serializer_class = PageSerializer
+    model = Page
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    def get_queryset(self):
+        subquery = PageFavorite.objects.filter(
+            user=self.request.user,
+            page_id=OuterRef("pk"),
+            project_id=self.kwargs.get("project_id"),
+            workspace__slug=self.kwargs.get("slug"),
+        )
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(project_id=self.kwargs.get("project_id"))
+            .filter(project__project_projectmember__member=self.request.user)
+            .filter(Q(owned_by=self.request.user) | Q(access=0))
+            .select_related("project")
+            .select_related("workspace")
+            .select_related("owned_by")
+            .annotate(is_favorite=Exists(subquery))
+            .distinct()
+        )
+
+    def perform_create(self, serializer):
+        serializer.save(
+            project_id=self.kwargs.get("project_id"), owned_by=self.request.user
+        )
+
+
+class PageBlockViewSet(BaseViewSet):
+    serializer_class = PageBlockSerializer
+    model = PageBlock
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(project_id=self.kwargs.get("project_id"))
+            .filter(page_id=self.kwargs.get("page_id"))
+            .filter(project__project_projectmember__member=self.request.user)
+            .select_related("project")
+            .select_related("workspace")
+            .select_related("page")
+            .select_related("issue")
+            .distinct()
+        )
+
+    def perform_create(self, serializer):
+        serializer.save(
+            project_id=self.kwargs.get("project_id"),
+            page_id=self.kwargs.get("page_id"),
+        )
+
+
+class PageFavoriteViewSet(BaseViewSet):
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    serializer_class = PageFavoriteSerializer
+    model = PageFavorite
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(user=self.request.user)
+            .select_related("page", "page__owned_by")
+        )
+
+    def create(self, request, slug, project_id):
+        try:
+            serializer = PageFavoriteSerializer(data=request.data)
+            if serializer.is_valid():
+                serializer.save(user=request.user, project_id=project_id)
+                return Response(serializer.data, status=status.HTTP_201_CREATED)
+            return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+        except IntegrityError as e:
+            if "already exists" in str(e):
+                return Response(
+                    {"error": "The page is already added to favorites"},
+                    status=status.HTTP_410_GONE,
+                )
+            else:
+                capture_exception(e)
+                return Response(
+                    {"error": "Something went wrong please try again later"},
+                    status=status.HTTP_400_BAD_REQUEST,
+                )
+        except Exception as e:
+            capture_exception(e)
+            return Response(
+                {"error": "Something went wrong please try again later"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+    def destroy(self, request, slug, project_id, page_id):
+        try:
+            page_favorite = PageFavorite.objects.get(
+                project=project_id,
+                user=request.user,
+                workspace__slug=slug,
+                page_id=page_id,
+            )
+            page_favorite.delete()
+            return Response(status=status.HTTP_204_NO_CONTENT)
+        except PageFavorite.DoesNotExist:
+            return Response(
+                {"error": "Page is not in favorites"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+        except Exception as e:
+            capture_exception(e)
+            return Response(
+                {"error": "Something went wrong please try again later"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+
+class CreateIssueFromPageBlockEndpoint(BaseAPIView):
+    def post(self, request, slug, project_id, page_id, page_block_id):
+        try:
+            page_block = PageBlock.objects.get(
+                pk=page_block_id,
+                workspace__slug=slug,
+                project_id=project_id,
+                page_id=page_id,
+            )
+            issue = Issue.objects.create(name=page_block.name, project_id=project_id)
+            _ = IssueAssignee.objects.create(
+                issue=issue, assignee=request.user, project_id=project_id
+            )
+            page_block.issue = issue
+            page_block.save()
+
+            return Response(IssueSerializer(issue).data, status=status.HTTP_200_OK)
+        except PageBlock.DoesNotExist:
+            return Response(
+                {"error": "Page Block does not exist"}, status=status.HTTP_404_NOT_FOUND
+            )
+        except Exception as e:
+            capture_exception(e)
+            return Response(
+                {"error": "Something went wrong please try again later"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )