Добавлены уровни доступов для Invites

invites/serializers.py

@@ -1,6 +1,8 @@
+from django.apps import apps
 from rest_framework import serializers
 
 from invites.models import Invite
+from projects.models import Collaborator
 from projects.serializers import ProjectListSerializer
 from users.serializers import UserDetailSerializer
 
@@ -18,6 +20,48 @@ class Meta:
             "is_accepted",
         ]
 
+    def validate(self, attrs):
+        project = attrs["project"]
+        user = attrs["user"]
+
+        if project.leader_id == user.id:
+            raise serializers.ValidationError(
+                {"user": "Пользователь уже является лидером проекта."}
+            )
+
+        if Collaborator.objects.filter(project=project, user=user).exists():
+            raise serializers.ValidationError(
+                {"user": "Пользователь уже состоит в проекте."}
+            )
+
+        if Invite.objects.filter(
+            project=project, user=user, is_accepted__isnull=True
+        ).exists():
+            raise serializers.ValidationError(
+                {"user": "У пользователя уже есть активное приглашение в этот проект."}
+            )
+
+        link = project.program_links.select_related("partner_program").first()
+        if link:
+            PartnerProgramUserProfile = apps.get_model(
+                "partner_programs", "PartnerProgramUserProfile"
+            )
+            is_participant = PartnerProgramUserProfile.objects.filter(
+                user_id=user.id,
+                partner_program_id=link.partner_program_id,
+            ).exists()
+            if not is_participant:
+                raise serializers.ValidationError(
+                    {
+                        "user": (
+                            "Нельзя пригласить пользователя: проект относится к программе, "
+                            "а пользователь не является её участником."
+                        )
+                    }
+                )
+
+        return attrs
+
 
 class InviteDetailSerializer(serializers.ModelSerializer[Invite]):
     user = UserDetailSerializer(many=False, read_only=True)

projects/models.py

@@ -1,7 +1,9 @@
 from typing import Optional
 
+from django.apps import apps
 from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.fields import GenericRelation
+from django.core.exceptions import ValidationError
 from django.core.validators import (
     MaxLengthValidator,
     MaxValueValidator,
@@ -310,6 +312,35 @@ class Meta:
             )
         ]
 
+    def clean(self):
+        """
+        Если проект привязан к программе, добавлять коллаборатора можно
+        только если пользователь — участник этой программы.
+        (Проект привязан максимум к одной программе.)
+        """
+        link = self.project.program_links.select_related("partner_program").first()
+        if not link:
+            return
+
+        PartnerProgramUserProfile = apps.get_model(
+            "partner_programs",
+            "PartnerProgramUserProfile",
+        )
+
+        is_participant = PartnerProgramUserProfile.objects.filter(
+            user_id=self.user_id,
+            partner_program_id=link.partner_program_id,
+        ).exists()
+
+        if not is_participant:
+            raise ValidationError(
+                "Пользователь не является участником программы, к которой относится проект."
+            )
+
+    def save(self, *args, **kwargs):
+        self.full_clean()
+        return super().save(*args, **kwargs)
+
 
 class ProjectNews(models.Model):
     """

projects/permissions.py

@@ -1,12 +1,11 @@
-from datetime import timedelta, datetime
+from datetime import datetime, timedelta
 
 from django.utils import timezone
+from rest_framework.exceptions import PermissionDenied, ValidationError
+from rest_framework.permissions import SAFE_METHODS, BasePermission
 
-from rest_framework.permissions import BasePermission, SAFE_METHODS
-from rest_framework.exceptions import PermissionDenied
-
+from partner_programs.models import PartnerProgram, PartnerProgramUserProfile
 from projects.models import Project
-from partner_programs.models import PartnerProgramUserProfile
 
 
 class IsProjectLeaderOrReadOnlyForNonDrafts(BasePermission):
@@ -79,29 +78,37 @@ class TimingAfterEndsProgramPermission(BasePermission):
     for `_SECONDS_AFTER_CANT_EDIT` seconds -> days from the end of the program.
     If the project is not in program or the request in `SAFE_METHODS` -> allowed.
     """
+
     _SECONDS_AFTER_CANT_EDIT: int = 60 * 60 * 24 * 30  # Now 30 days.
 
     def has_object_permission(self, request, view, obj) -> bool:
         if request.method in SAFE_METHODS:
             return True
 
         program_profile = (
-            PartnerProgramUserProfile.objects
-            .filter(user=request.user, project=obj)
+            PartnerProgramUserProfile.objects.filter(user=request.user, project=obj)
             .select_related("partner_program")
             .first()
         )
         moscow_time: datetime = timezone.localtime(timezone.now())
 
         if program_profile:
-            date_from_end_program: timedelta = (moscow_time - program_profile.partner_program.datetime_finished)
+            date_from_end_program: timedelta = (
+                moscow_time - program_profile.partner_program.datetime_finished
+            )
             days_from_end_program: int = date_from_end_program.days
             seconds_from_end_program: int = date_from_end_program.total_seconds()
             if 0 <= seconds_from_end_program <= self._SECONDS_AFTER_CANT_EDIT:
-                raise PermissionDenied(detail=self._prepare_exception_detail(days_from_end_program, program_profile))
+                raise PermissionDenied(
+                    detail=self._prepare_exception_detail(
+                        days_from_end_program, program_profile
+                    )
+                )
         return True
 
-    def _prepare_exception_detail(self, days_from_end_program: int, program_profile: PartnerProgramUserProfile):
+    def _prepare_exception_detail(
+        self, days_from_end_program: int, program_profile: PartnerProgramUserProfile
+    ):
         """
         Prepare response body when `PermissionDenied` exception raised:
             program_name: str -> Program title
@@ -112,7 +119,11 @@ def _prepare_exception_detail(self, days_from_end_program: int, program_profile:
         when_can_edit: datetime = timezone.localtime(
             datetime_finished + timedelta(seconds=self._SECONDS_AFTER_CANT_EDIT)
         )
-        days_until_resolution: int = int(self._SECONDS_AFTER_CANT_EDIT / 60 / 60 / 24) - days_from_end_program - 1
+        days_until_resolution: int = (
+            int(self._SECONDS_AFTER_CANT_EDIT / 60 / 60 / 24)
+            - days_from_end_program
+            - 1
+        )
         return {
             "program_name": program_profile.partner_program.name,
             "when_can_edit": when_can_edit,
@@ -140,3 +151,24 @@ def has_object_permission(self, request, view, obj):
         ) or obj.project.leader == request.user:
             return True
         return False
+
+
+class CanBindProjectToProgram(BasePermission):
+    message = "Привязать проект к программе может только её участник (или менеджер)."
+
+    def has_permission(self, request, view):
+        program_id = (request.data or {}).get("partner_program_id")
+        if not program_id:
+            return True
+
+        try:
+            program = PartnerProgram.objects.get(pk=program_id)
+        except PartnerProgram.DoesNotExist:
+            raise ValidationError({"partner_program_id": "Программа не найдена."})
+
+        if program.is_manager(request.user):
+            return True
+
+        return PartnerProgramUserProfile.objects.filter(
+            user=request.user, partner_program=program
+        ).exists()

projects/serializers.py

@@ -387,7 +387,7 @@ def validate(self, data):
 
         if project.leader != request.user:
             raise serializers.ValidationError(
-                "Только лидер проекта может дублировать его в программу."
+                {"error": "Только лидер проекта может дублировать его в программу."}
             )
 
         try:

projects/views.py

@@ -33,6 +33,7 @@
 from projects.models import Achievement, Collaborator, Project, ProjectNews
 from projects.pagination import ProjectNewsPagination, ProjectsPagination
 from projects.permissions import (
+    CanBindProjectToProgram,
     HasInvolvementInProjectOrReadOnly,
     IsNewsAuthorIsProjectLeaderOrReadOnly,
     IsProjectLeader,
@@ -659,7 +660,7 @@ def patch(self, request, project_pk: int, user_to_leader_pk: int) -> Response:
 
 
 class DuplicateProjectView(APIView):
-    permission_classes = [IsAuthenticated]
+    permission_classes = [IsAuthenticated, CanBindProjectToProgram]
 
     @swagger_auto_schema(
         request_body=ProjectDuplicateRequestSerializer,