Update data_models.py

data_models.py

@@ -22,10 +22,19 @@ class IdeaForm(BaseModel):
     technical_challenges: Optional[str] = Field(None, description="Difficult technical problems")
     legal_barriers: Optional[str] = Field(None, description="Possible legal issues")
     data_dependencies: Optional[str] = Field(None, description="Required data types")
-    team_roles: Optional[List[str]] = Field(None, description="Required job roles")
+    team_roles: Optional[List[str]] = Field(default_factory=list, description="Required job roles")
     timeline: Optional[str] = Field(None, description="Estimated time to build main components")
     additional_info: Optional[str] = Field(None, description="Any additional information")
 
+    class Config:
+        validate_assignment = True
+
+    @classmethod
+    def parse_team_roles(cls, value):
+        if isinstance(value, str):
+            return [role.strip() for role in value.split(',')] if value else []
+        return value
+
 class InnovativeIdea(Base):
     __tablename__ = 'innovative_ideas'