def create_object(self, data: dict):
course_mapper = MapperRegistry.get_current_mapper('course')
try:
name = data['name']
name = website_engine.decode_value(name)
validator.word_validation(name)
if course_mapper.check_course_exists(course_name=name):
self.validation_error = f'Course with this name: {name} already exists'
raise ValidationException(f'Course with this name: {name} already exists')
location = data['location']
location = website_engine.decode_value(location)
validator.word_validation(location)
start_date = data['start_date']
start_date = website_engine.decode_value(start_date)
validator.date_validation(start_date)
category_name = data['category']
mapper = MapperRegistry.get_current_mapper('category')
category = mapper.get_category_by_name(category_name=category_name)
course = website_engine.create_course(type_='video', name=name, category=category,
location=location, start_date=start_date)
category.courses.append(course)
category.mark_dirty()
course.mark_new()
UnitOfWork.get_thread().commit()
logger.log(f'Course {course} has been successfully created')
self.success_text = f'Successfully added course {course}!'
course.observers.append(email_notifier)
course.observers.append(sms_notifier)
except ValidationException as e:
logger.log(f'Validation failed: {e}')
self.validation_error = e
def delete_object(self, data: dict):
try:
course_name = data['course_name']
course_mapper = MapperRegistry.get_current_mapper('course')
course = course_mapper.get_course_by_name(course_name)
course.mark_removed()
UnitOfWork.get_thread().commit()
logger.log(f'Successfully deleted course {course_name}!')
except Exception as e:
logger.log(f'An error occurred: {e}')
self.error_message = e
def delete_object(self, data: dict):
try:
student_name = data['student_name']
student_mapper = MapperRegistry.get_current_mapper('student')
student = student_mapper.get_student_by_name(student_name)
student.mark_removed()
UnitOfWork.get_thread().commit()
logger.log(f'Successfully deleted student {student_name}!')
except Exception as e:
logger.log(f'An error occurred: {e}')
self.error_message = e
def update_object(self, data: dict):
try:
email = data['email']
validator.email_validation(email)
student_name = data['student_name']
student_name = website_engine.decode_value(student_name)
mapper = MapperRegistry.get_current_mapper('student')
student = mapper.get_student_by_name(student_name)
student.update_email(email)
student.mark_dirty()
UnitOfWork.get_thread().commit()
logger.log(f'Updated student is: {student}')
except ValidationException as e:
self.error_message = e
logger.log(f'An error occurred: {self.error_message}')
def update_object(self, data: dict):
try:
course_name = data['course_name']
course_mapper = MapperRegistry.get_current_mapper('course')
course = course_mapper.get_course_by_name(course_name)
location = data['location']
validator.word_validation(location)
start_date = data['start_date']
validator.date_validation(start_date)
course.update_location(location)
course.update_start_date(start_date)
course.mark_dirty()
UnitOfWork.get_thread().commit()
except ValidationException as e:
self.error_message = e
logger.log(f'An error occurred: {self.error_message}')
def create_object(self, data: dict):
try:
category_name = data['name']
category_name = website_engine.decode_value(category_name)
validator.word_validation(category_name)
mapper = MapperRegistry.get_current_mapper('category')
if mapper.check_category_exists(category_name=category_name):
self.validation_error = f'Category with this name: {category_name} already exists'
raise ValidationException(self.validation_error)
category_id = randint(1000, 5000)
category = None
new_category = website_engine.create_category(name=category_name, category=category, category_id=category_id)
new_category.mark_new()
UnitOfWork.get_thread().commit()
logger.log(f'Successfully added new category {new_category}')
except ValidationException as e:
logger.log(f'{e}')
self.validation_error = e
def create_object(self, data: dict):
try:
name = data['name']
name = website_engine.decode_value(name)
validator.word_validation(name)
email, role = data['email'], data['role']
validator.email_validation(email)
mapper = MapperRegistry.get_current_mapper('student')
if mapper.check_student_exists(student_name=name):
self.error_message = f'Student with this name "{name}" already exists'
raise ValidationException(self.error_message)
if role == 'student':
user = website_engine.create_user(type_=role, name=name, email=email)
user.mark_new()
UnitOfWork.get_thread().commit()
elif role == 'teacher':
user = website_engine.create_user(type_=role, name=name, email=email)
website_engine.teachers.append(user)
logger.log(website_engine.teachers)
except ValidationException as e:
self.error_message = e
logger.log(f'Validation error occurred: {e}')
def __call__(self, request):
request_params = request['request_params']
try:
name = request_params['name']
logger.log(f'copying the course {name}')
mapper = MapperRegistry.get_current_mapper('course')
existing_course = mapper.get_course_by_name(name)
if existing_course:
new_name = f'{name}_copy'
new_course = existing_course.clone()
new_course.name = new_name
new_course.mark_new()
UnitOfWork.get_thread().commit()
courses = mapper.all()
logger.log(f"new list of courses is {courses}")
courses_count = [len(courses)]
return '200 OK', render('courses.html', objects_list=courses,
courses_count=courses_count)
except IntegrityError:
return '400 NOK', render('error_page.html',
error_text=f'Unable to copy course: course with this name already exists')
except Exception as e:
return '400 NOK', render('error_page.html', error_text=f'Unable to copy course: {e}')
from patterns.validators import Validator, ValidationException
from patterns.logger import Logger
from patterns.mapper_registry import MapperRegistry
from patterns.decorators import timer, app_route
from patterns.views_templates import ListView, CreateView, UpdateView, DeleteView
from patterns.api_module import BaseSerializer
from patterns.updater import EmailNotify, SMSNotify
from patterns.unit_of_work import UnitOfWork
website_engine = Engine()
logger = Logger('views')
email_notifier = EmailNotify()
sms_notifier = SMSNotify()
validator = Validator()
UnitOfWork.new_thread()
UnitOfWork.get_thread().set_mapper_registry(MapperRegistry)
routes = {}
@app_route(routes=routes, url='/')
class Index:
@timer(name="Index")
def __call__(self, request):
return '200 OK', render('index.html', date=date.today())
@app_route(routes=routes, url='/categories/')
class Categories(ListView):
template_name = 'categories.html'
def get_context_data(self):