[Backport] Fixing serializers validation for duplicated names in priorities, severities and issue types

taiga/projects/milestones/serializers.py

@@ -21,12 +21,12 @@ from taiga.base.api import serializers
 from taiga.base.utils import json
 from taiga.projects.notifications.mixins import WatchedResourceModelSerializer
 from taiga.projects.notifications.validators import WatchersValidator
-
+from taiga.projects.mixins.serializers import ValidateDuplicatedNameInProjectMixin
 from ..userstories.serializers import UserStoryListSerializer
 from . import models
 
 
-class MilestoneSerializer(WatchersValidator, WatchedResourceModelSerializer, serializers.ModelSerializer):
+class MilestoneSerializer(WatchersValidator, WatchedResourceModelSerializer, ValidateDuplicatedNameInProjectMixin):
     user_stories = UserStoryListSerializer(many=True, required=False, read_only=True)
     total_points = serializers.SerializerMethodField("get_total_points")
     closed_points = serializers.SerializerMethodField("get_closed_points")
@@ -40,20 +40,3 @@ class MilestoneSerializer(WatchersValidator, WatchedResourceModelSerializer, ser
 
     def get_closed_points(self, obj):
         return sum(obj.closed_points.values())
-
-    def validate_name(self, attrs, source):
-        """
-        Check the milestone name is not duplicated in the project on creation
-        """
-        qs = None
-        # If the milestone exists:
-        if self.object and attrs.get("name", None):
-            qs = models.Milestone.objects.filter(project=self.object.project, name=attrs[source]).exclude(pk=self.object.pk)
-
-        if not self.object and attrs.get("project", None) and attrs.get("name", None):
-            qs = models.Milestone.objects.filter(project=attrs["project"], name=attrs[source])
-
-        if qs and qs.exists():
-              raise serializers.ValidationError(_("Name duplicated for the project"))
-
-        return attrs

taiga/projects/mixins/serializers.py

@@ -0,0 +1,40 @@
+# Copyright (C) 2014-2016 Andrey Antukh <niwi@niwi.nz>
+# Copyright (C) 2014-2016 Jesús Espino <jespinog@gmail.com>
+# Copyright (C) 2014-2016 David Barragán <bameda@dbarragan.com>
+# Copyright (C) 2014-2016 Alejandro Alonso <alejandro.alonso@kaleidos.net>
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from taiga.base.api import serializers
+
+from django.utils.translation import ugettext as _
+
+class ValidateDuplicatedNameInProjectMixin(serializers.ModelSerializer):
+
+    def validate_name(self, attrs, source):
+        """
+        Check the points name is not duplicated in the project on creation
+        """
+        model = self.opts.model
+        qs = None
+        # If the object exists:
+        if self.object and attrs.get(source, None):
+            qs = model.objects.filter(project=self.object.project, name=attrs[source]).exclude(id=self.object.id)
+
+        if not self.object and attrs.get("project", None)  and attrs.get(source, None):
+            qs = model.objects.filter(project=attrs["project"], name=attrs[source])
+
+        if qs and qs.exists():
+              raise serializers.ValidationError(_("Name duplicated for the project"))
+
+        return attrs

taiga/projects/serializers.py

@@ -34,6 +34,7 @@ from taiga.users.validators import RoleExistsValidator
 
 from taiga.permissions.service import get_user_project_permissions
 from taiga.permissions.service import is_project_owner
+from taiga.projects.mixins.serializers import ValidateDuplicatedNameInProjectMixin
 
 from . import models
 from . import services
@@ -49,53 +50,17 @@ from .likes.mixins.serializers import FanResourceSerializerMixin
 ## Custom values for selectors
 ######################################################
 
-class PointsSerializer(serializers.ModelSerializer):
+class PointsSerializer(ValidateDuplicatedNameInProjectMixin):
     class Meta:
         model = models.Points
         i18n_fields = ("name",)
 
-    def validate_name(self, attrs, source):
-        """
-        Check the points name is not duplicated in the project on creation
-        """
-        qs = None
-        # If the user story status exists:
-        if self.object and attrs.get("name", None):
-            qs = models.Points.objects.filter(project=self.object.project, name=attrs[source])
 
-        if not self.object and attrs.get("project", None)  and attrs.get("name", None):
+class UserStoryStatusSerializer(ValidateDuplicatedNameInProjectMixin):
-            qs = models.Points.objects.filter(project=attrs["project"], name=attrs[source])
-
-        if qs and qs.exists():
-              raise serializers.ValidationError(_("Name duplicated for the project"))
-
-        return attrs
-
-
-class UserStoryStatusSerializer(serializers.ModelSerializer):
     class Meta:
         model = models.UserStoryStatus
         i18n_fields = ("name",)
 
-    def validate_name(self, attrs, source):
-        """
-        Check the status name is not duplicated in the project on creation
-        """
-        qs = None
-        # If the user story status exists:
-        if self.object and attrs.get("name", None):
-            qs = models.UserStoryStatus.objects.filter(project=self.object.project,
-                                                       name=attrs[source])
-
-        if not self.object and attrs.get("project", None)  and attrs.get("name", None):
-            qs = models.UserStoryStatus.objects.filter(project=attrs["project"],
-                                                       name=attrs[source])
-
-        if qs and qs.exists():
-              raise serializers.ValidationError(_("Name duplicated for the project"))
-
-        return attrs
-
 
 class BasicUserStoryStatusSerializer(serializers.ModelSerializer):
     class Meta:
@@ -104,28 +69,11 @@ class BasicUserStoryStatusSerializer(serializers.ModelSerializer):
         fields = ("name", "color")
 
 
-class TaskStatusSerializer(serializers.ModelSerializer):
+class TaskStatusSerializer(ValidateDuplicatedNameInProjectMixin):
     class Meta:
         model = models.TaskStatus
         i18n_fields = ("name",)
 
-    def validate_name(self, attrs, source):
-        """
-        Check the task name is not duplicated in the project on creation
-        """
-        qs = None
-        # If the user story status exists:
-        if self.object and attrs.get("name", None):
-            qs = models.TaskStatus.objects.filter(project=self.object.project, name=attrs[source])
-
-        if not self.object and attrs.get("project", None)  and attrs.get("name", None):
-            qs = models.TaskStatus.objects.filter(project=attrs["project"], name=attrs[source])
-
-        if qs and qs.exists():
-              raise serializers.ValidationError(_("Name duplicated for the project"))
-
-        return attrs
-
 
 class BasicTaskStatusSerializerSerializer(serializers.ModelSerializer):
 
@@ -135,40 +83,23 @@ class BasicTaskStatusSerializerSerializer(serializers.ModelSerializer):
         fields = ("name", "color")
 
 
-class SeveritySerializer(serializers.ModelSerializer):
+class SeveritySerializer(ValidateDuplicatedNameInProjectMixin):
     class Meta:
         model = models.Severity
         i18n_fields = ("name",)
 
 
-class PrioritySerializer(serializers.ModelSerializer):
+class PrioritySerializer(ValidateDuplicatedNameInProjectMixin):
     class Meta:
         model = models.Priority
         i18n_fields = ("name",)
 
 
-class IssueStatusSerializer(serializers.ModelSerializer):
+class IssueStatusSerializer(ValidateDuplicatedNameInProjectMixin):
     class Meta:
         model = models.IssueStatus
         i18n_fields = ("name",)
 
-    def validate_name(self, attrs, source):
-        """
-        Check the issue name is not duplicated in the project on creation
-        """
-        qs = None
-        # If the user story status exists:
-        if self.object and attrs.get("name", None):
-            qs = models.IssueStatus.objects.filter(project=self.object.project, name=attrs[source])
-
-        if not self.object and attrs.get("project", None)  and attrs.get("name", None):
-            qs = models.IssueStatus.objects.filter(project=attrs["project"], name=attrs[source])
-
-        if qs and qs.exists():
-              raise serializers.ValidationError(_("Name duplicated for the project"))
-
-        return attrs
-
 
 class BasicIssueStatusSerializer(serializers.ModelSerializer):
     class Meta:
@@ -177,7 +108,7 @@ class BasicIssueStatusSerializer(serializers.ModelSerializer):
         fields = ("name", "color")
 
 
-class IssueTypeSerializer(serializers.ModelSerializer):
+class IssueTypeSerializer(ValidateDuplicatedNameInProjectMixin):
     class Meta:
         model = models.IssueType
         i18n_fields = ("name",)

tests/unit/test_serializer_mixins.py

@@ -0,0 +1,44 @@
+import pytest
+
+from .. import factories as f
+from django.db import models
+from taiga.projects.mixins.serializers import ValidateDuplicatedNameInProjectMixin
+from taiga.projects.models import Project
+
+pytestmark = pytest.mark.django_db(transaction=True)
+
+import factory
+
+
+class TestingProjectModel(models.Model):
+    pass
+
+class TestingModelWithNameAttribute(models.Model):
+    name = models.CharField(max_length=255, null=False, blank=False)
+    project = models.ForeignKey(TestingProjectModel, null=False, blank=False)
+
+
+class TestingSerializer(ValidateDuplicatedNameInProjectMixin):
+    class Meta:
+        model = TestingModelWithNameAttribute
+
+
+def test_duplicated_name_validation():
+    project = TestingProjectModel.objects.create()
+    instance_1 = TestingModelWithNameAttribute.objects.create(name="1", project=project)
+    instance_2 = TestingModelWithNameAttribute.objects.create(name="2", project=project)
+
+    # No duplicated_name
+    serializer = TestingSerializer(data={"name": "3", "project": project.id})
+
+    assert serializer.is_valid()
+
+    # Create duplicated_name
+    serializer = TestingSerializer(data={"name": "1", "project": project.id})
+
+    assert not serializer.is_valid()
+
+    # Update name to existing one
+    serializer = TestingSerializer(data={"id": instance_2.id, "name": "1","project": project.id})
+
+    assert not serializer.is_valid()