def notify_users(send_mail, assigned_users, message):
'''
Method to triger notifications
'''
notify(users=assigned_users, subject='Stock counts alert', body=message)
send_mail.send()
def create_promotion(products, title, discount, outlet):
'''
Create promotion for products about to expiry
'''
promotion = Promotion.objects.filter(title=title).first()
products_added = True
if promotion:
products_added = not all(product in products
for product in promotion.products.all())
promotion.products.add(*products)
else:
promotion_type, _ = PromotionType.objects.get_or_create(name='expiry')
description = 'Products about to expire.'
promotion = Promotion(title=title,
promotion_type=promotion_type,
description=description,
discount=discount,
is_approved=False,
outlet=outlet)
with SaveContextManager(promotion, model=Promotion) as promotion:
promotion.products.add(*products)
if products_added:
users = outlet.active_outlet_users
roles = ('Master Admin', 'Manager')
users = [user for user in users if str(user.role) in roles]
message = f'Products have been added to promotion {title}.'
notify(users=users, subject='Products about to expire.', body=message)
def notify_quantity(sender, instance, created, **kwargs):
"""
Method to generate notifications for proposed change in batch quantity.
"""
if created:
if not instance.quantity_remaining and instance.parent is None:
instance.quantity_remaining = instance.quantity_received
instance.save()
if instance.parent_id:
batch = instance.batch
if len(batch.product.business.outlet_set.all()) > 0:
outlet_users = [user for user in
batch.product.business.outlet_set.first().
active_outlet_users
if user.id != instance.proposed_by.id]
all_users = []
if outlet_users:
for user in outlet_users:
if str(user.role) == "Master\
Admin" or str(user.role) == \
"Operations Admin":
all_users.append(user)
message = PRODUCTS_SUCCESS_RESPONSES[
"batch_edit_proposal"].format(batch.batch_no)
notify(
users=all_users,
subject='Proposed change in batch quantity',
event_name='batch_quantity',
body=message)
# if quantity instance is not a proposal,
# we can check if the product quantity is low
if not instance.parent_id:
# set an arbitrary quantity threshold
# we'll check for instances where product quantity
# goes below this threshold
quantity_threshold = 50
product = instance.batch.product
if len(product.business.outlet_set.all()) > 0:
outlet_users = \
product.business.outlet_set.first().active_outlet_users
if len(outlet_users) > 0:
# notify all outlet users.
if product.quantity_in_stock < quantity_threshold:
message = PRODUCTS_SUCCESS_RESPONSES[
"low_quantity_alert"].format(
product.product_name,
product.quantity_in_stock)
notify(
users=outlet_users,
subject='Low quantity alert',
event_name='product_quantity',
body=message)
def trigger_notification(expired_batches):
'''Method to trigger a notification to Master Admin users
'''
for batch in expired_batches:
outlet = batch['batch'].outlet
users = outlet.active_outlet_users
outlet_master_admins = [
user for user in users if str(user.role) == 'Master Admin']
batch_number = batch["batch"].batch_no
message = f'Products with batch no. { batch_number } are within \
12 months to expiry!'
products = batch['batch'].product.all()
product_names = [product.product_name for product in products]
html_body = render_to_string(
'batch_expiries/expiry_notification.html',
{
'batch': batch['batch'],
'product': product_names,
'outlet': batch['batch'].outlet.name,
'days_to_expiry': batch["days_to_expiry"]
})
subject = 'Expired Products!'
event_name = 'batch-expiry-notification-event'
thread = threading.Thread(target=notify(users=outlet_master_admins,
subject=subject,
body=message,
event_name=event_name,
html_body=html_body))
thread.start()
def mutate(self, info, **kwargs):
batch_info = kwargs.get('batch_info')
quantity_counted = kwargs.get('quantity_counted')
stock_count_id = kwargs.get('stock_count_id')
validate_stock.stock_validate(kwargs)
validate_stock.check_empty_id(stock_count_id, name='Stock Count')
stock_count = get_model_object(StockCount, 'id', stock_count_id)
validate_stock.check_approved_stock(info, stock_count)
validate_stock.add_stock(kwargs, stock_count)
validate_stock.validate_batch_ids(stock_count, batch_info)
with SaveContextManager(stock_count) as stock_count:
if batch_info and quantity_counted:
for field, data in enumerate(batch_info):
record_instance = \
stock_count.stock_count_record.get(batch_info=data)
record_instance.quantity_counted = \
quantity_counted[field]
record_instance.save()
if stock_count.is_completed:
users_instance = \
stock_count.stock_template.designated_users.all()
email_stock_count = \
'email_alerts/stocks/stock_count_email.html'
event_name = 'stock_count_approval'
subject = 'Stock Count sent for approval'
context = {
'template_type': 'Stock Count Approval',
'small_text_detail': 'Stock Count Details',
'email': str(info.context.user.email),
'quantity_counted': str(stock_count.quantity_counted),
'variance_reason': str(stock_count.variance_reason),
'product_quantity':
str(stock_count.product.quantity_in_stock)
}
notify(
users=users_instance,
subject=subject,
event_name=event_name,
body=context,
html_subject=context,
html_body=email_stock_count,
)
message = [SUCCESS_RESPONSES["update_success"].format("Stock Count")]
return UpdateStockCount(message=message, stock_count=stock_count)
def mutate(cls, root, info, **kwargs):
user_ids = kwargs.get('user_ids')
subject = kwargs.get('subject')
event_name = kwargs.get('event_name')
body = kwargs.get('body')
users = list(map(lambda user_id: get_model_object(
User, 'id', user_id), user_ids))
notifications = notify(
users=users,
subject=subject,
event_name=event_name,
body=body)
return cls(notifications=notifications)
def generate_expiry_notification(expired_batches):
'''Method to trigger a notification to users
'''
expired_products = []
outlet_user = []
for batch in expired_batches:
outlet = batch['batch'].product.business.outlet_set.first()
for user in outlet.active_outlet_users:
outlet_user.append(user)
message = {
'id': batch['batch'].id,
'batch': batch['batch'].batch_no,
'product': batch['batch'].product.product_name,
'outlet': batch['batch'].product.business.outlet_set.first().name,
'days_to_expiry': batch["days_to_expiry"]
}
expired_products.append(message)
event_name = 'expiry-notification-event'
thread = threading.Thread(target=notify(users=outlet_user,
subject='Expired Products!',
body=message,
event_name=event_name, ))
thread.start()
def mutate(self, info, **kwargs):
validate_stock.stock_validate(kwargs)
batch_info = kwargs.get('batch_info')
quantity_counted = kwargs.get('quantity_counted')
product_id = kwargs.get('product')
is_closed = kwargs.get('is_closed', False)
product = get_model_object(Product, 'id', product_id)
product_batches = product.batch_info.all().values_list('id', flat=True)
stock_template = get_model_object(StockCountTemplate, 'id',
kwargs.get('stock_template_id'))
if stock_template.is_closed:
errors.custom_message(STOCK_ERROR_RESPONSES["stock_count_closed"])
stock_template_products = stock_template.products.all()
if product not in stock_template_products:
errors.custom_message(
STOCK_ERROR_RESPONSES["product_template_error"])
message = f'Product {product.product_name} ' + \
STOCK_ERROR_RESPONSES["product_batch_id_error"]
check_validity_of_ids(batch_info, product_batches, message=message)
stock_count = StockCount()
validate_stock.add_stock(kwargs, stock_count)
with SaveContextManager(stock_count) as stock_count:
message = [
STOCK_SUCCESS_RESPONSES["stock_account_save_in_progress"]
]
for index, value in enumerate(batch_info):
record_instance = StockCountRecord.objects.create(
quantity_counted=quantity_counted[index],
batch_info_id=value,
)
stock_count.stock_count_record.add(record_instance)
if stock_count.is_completed:
users_instance = \
stock_count.stock_template.designated_users.all()
email_stock_count = \
'email_alerts/stocks/stock_count_email.html'
event_name = 'stock_count_approval'
subject = 'Stock Count sent for approval'
context = {
'template_type': 'Stock Count Approval',
'small_text_detail': 'Stock Count Details',
'email': str(info.context.user.email),
'quantity_counted': str(stock_count.quantity_counted),
'variance_reason': str(stock_count.variance_reason),
'product_quantity':
str(stock_count.product.quantity_in_stock)
}
notify(
users=users_instance,
subject=subject,
event_name=event_name,
body=context,
html_subject=context,
html_body=email_stock_count,
)
message = [STOCK_SUCCESS_RESPONSES["stock_approval_success"]]
stock_template.is_closed = is_closed
stock_template.save()
stock_count.update_template_status
return InitiateStockCount(message=message, stock_count=stock_count)
