req-project-4-nbwb5y/helpers/contact_form_helpers.py

137 lines
4.2 KiB
Python

from typing import Dict, Optional, Union, Any
from fastapi import HTTPException, status
from sqlalchemy.orm import Session
from email_validator import validate_email, EmailNotValidError
from models.contact_form import ContactForm
from schemas.contact_form import ContactFormCreate, ContactFormSchema
def validate_contact_form_data(
form_data: Dict[str, Any]
) -> Dict[str, Optional[str]]:
"""
Validates contact form data fields: name, email, and message.
Args:
form_data (Dict[str, Any]): The contact form data to validate
Returns:
Dict[str, Optional[str]]: Dictionary with field names as keys and error messages as values.
If a field is valid, its error message will be None.
"""
errors = {
"name": None,
"email": None,
"message": None
}
# Validate name
if "name" not in form_data or not form_data["name"]:
errors["name"] = "Name is required"
# Validate email
if "email" not in form_data or not form_data["email"]:
errors["email"] = "Email is required"
else:
try:
# Use email_validator to validate email format
validate_email(form_data["email"])
except EmailNotValidError:
errors["email"] = "Invalid email format"
# Validate message
if "message" not in form_data or not form_data["message"]:
errors["message"] = "Message is required"
return errors
def validate_and_create_contact_form(
db: Session,
form_data: ContactFormCreate
) -> Union[ContactForm, Dict[str, Optional[str]]]:
"""
Validates contact form data and creates a new contact form entry if valid.
Args:
db (Session): The database session
form_data (ContactFormCreate): The contact form data to validate and create
Returns:
Union[ContactForm, Dict[str, Optional[str]]]:
- ContactForm object if validation passes
- Dictionary of validation errors if validation fails
"""
# Convert Pydantic model to dict for validation
data_dict = form_data.dict()
# Validate the form data
validation_errors = validate_contact_form_data(data_dict)
# Check if there are any validation errors
if any(error is not None for error in validation_errors.values()):
return validation_errors
# Create new contact form entry
db_contact_form = ContactForm(**data_dict)
db.add(db_contact_form)
db.commit()
db.refresh(db_contact_form)
return db_contact_form
def create_contact_form_entry(
db: Session,
form_data: ContactFormCreate
) -> ContactForm:
"""
Creates a new contact form entry in the database.
Args:
db (Session): The database session
form_data (ContactFormCreate): The validated contact form data
Returns:
ContactForm: The newly created contact form object
"""
db_contact_form = ContactForm(**form_data.dict())
db.add(db_contact_form)
db.commit()
db.refresh(db_contact_form)
return db_contact_form
def handle_contact_form_submission(
db: Session,
form_data: ContactFormCreate
) -> ContactFormSchema:
"""
Process a contact form submission with validation.
Args:
db (Session): The database session
form_data (ContactFormCreate): The contact form data to process
Returns:
ContactFormSchema: The created contact form entry
Raises:
HTTPException: If validation fails with specific error messages
"""
# Validate the form data
validation_errors = validate_contact_form_data(form_data.dict())
# Build error message if validation fails
error_messages = []
for field, error in validation_errors.items():
if error:
error_messages.append(f"{field}: {error}")
if error_messages:
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail={"errors": error_messages}
)
# Create the contact form entry
contact_form = create_contact_form_entry(db, form_data)
# Return the created contact form
return ContactFormSchema.from_orm(contact_form)