[WEB-5666] chore: set project timezone same as workspace timezone in project (#8340)

Author: sangeethailango

apps/api/plane/api/serializers/project.py

@@ -3,13 +3,7 @@
 from rest_framework import serializers
 
 # Module imports
-from plane.db.models import (
-    Project,
-    ProjectIdentifier,
-    WorkspaceMember,
-    State,
-    Estimate,
-)
+from plane.db.models import Project, ProjectIdentifier, WorkspaceMember, State, Estimate
 
 from plane.utils.content_validator import (
     validate_html_content,
@@ -123,6 +117,7 @@ def validate(self, data):
 
     def create(self, validated_data):
         identifier = validated_data.get("identifier", "").strip().upper()
+
         if identifier == "":
             raise serializers.ValidationError(detail="Project Identifier is required")
 

apps/api/plane/api/views/project.py

@@ -210,7 +210,9 @@ def post(self, request, slug):
         """
         try:
             workspace = Workspace.objects.get(slug=slug)
+
             serializer = ProjectCreateSerializer(data={**request.data}, context={"workspace_id": workspace.id})
+
             if serializer.is_valid():
                 serializer.save()
 

apps/api/plane/app/serializers/project.py

@@ -13,7 +13,7 @@
     ProjectIdentifier,
     DeployBoard,
     ProjectPublicMember,
-    IssueSequence
+    IssueSequence,
 )
 from plane.utils.content_validator import (
     validate_html_content,

apps/api/plane/db/models/project.py

@@ -116,6 +116,11 @@ class Project(BaseModel):
     external_source = models.CharField(max_length=255, null=True, blank=True)
     external_id = models.CharField(max_length=255, blank=True, null=True)
 
+    def __init__(self, *args, **kwargs):
+        # Track if timezone is provided, if so, don't override it with the workspace timezone when saving
+        self.is_timezone_provided = kwargs.get("timezone") is not None
+        super().__init__(*args, **kwargs)
+
     @property
     def cover_image_url(self):
         # Return cover image url
@@ -155,7 +160,15 @@ class Meta:
         ordering = ("-created_at",)
 
     def save(self, *args, **kwargs):
+        from plane.db.models import Workspace
+
         self.identifier = self.identifier.strip().upper()
+        is_creating = self._state.adding
+
+        if is_creating and not self.is_timezone_provided:
+            workspace = Workspace.objects.get(id=self.workspace_id)
+            self.timezone = workspace.timezone
+
         return super().save(*args, **kwargs)