def unity_price_change(self):
"""Handle the change in unity price, validating and updating other
values.
"""
# Get information.
price_input = self.ids['unity_price']
price_text = price_input.text
# Check if changed and update information.
if format_brl(self.unity_price) != price_text:
self.unity_price = parse_brl(price_text)
self.total_price = self.quantity * self.unity_price
self.ids['total'].text = format_brl(self.total_price)
self.ids['unity_price'].text = format_brl(self.unity_price)
self.parent.compute_total()
def on_pre_enter(self):
"""Update informations before entering the screen."""
client = self.manager.client
total = sum(Decimal(i.total) for i in client.orders)
paid = sum(Decimal(i.amount) for i in client.payments)
orders = [{
"order_id": order.id,
"local": order.local,
"delivered": order.delivered,
"total": order.total
} for order in client.orders]
self.ids['name'].text = client.name
self.ids['phone'].text = client.phone
self.ids['total'].text = format_brl(total)
self.ids['paid'].text = format_brl(paid)
self.ids['orders'].data = reversed(orders)
def total_change(self):
"""Handle the change in price, validating and updating other values."""
# Get information.
total_input = self.ids['total']
total_text = total_input.text
# Check if changed and update information.
if format_brl(self.total_price) != total_text:
self.total_price = parse_brl(total_text)
self.ids['total'].text = format_brl(self.total_price)
# Prevent division by zero.
if self.quantity:
self.unity_price = self.total_price / self.quantity
self.ids['unity_price'].text = format_brl(self.unity_price)
self.parent.compute_total()
def quantity_change(self):
"""Handle the change in quantity, validating and updating other values."""
quantity_input = self.ids['quantity']
quantity_text = quantity_input.text
# Prevent errors for empty inputs.
if not quantity_text:
quantity_text = '0'
# Prevent error parsing decimal because of commas.
quantity_text = quantity_text.replace(',', '.')
# Remove more than one dots.
while quantity_text.count('.') > 1:
quantity_text = quantity_text[::-1].replace('.', '', 1)[::-1]
# Prevent the decimal dot to be removed when parsing decimal.
if quantity_text[-1] == '.':
quantity_input.text = quantity_text
else:
# If the exception InvalidOperation or Overflow is raised, do not
# changed the values, making it not changed.
try:
self.quantity = abs(Decimal(quantity_text))
self.total_price = self.quantity * self.unity_price
except (InvalidOperation, Overflow):
pass
# Update the values.
quantity_input.text = str(self.quantity)
self.ids['total'].text = format_brl(self.total_price)
self.parent.compute_total()
def on_pre_enter(self):
"""Update the itens before entering screen."""
# Get the itens from the session
app = App.get_running_app()
itens = app.session.query(Iten).all()
# Parse the itens and update the RecycleView data
itens = [{'name': i.name, 'price': format_brl(i.price)} for i in itens]
self.ids['itens'].data = itens
def on_pre_enter(self):
"""Update the information before entering the screen."""
# Get the data
client = self.manager.client
payments = client.payments
total = sum(Decimal(i.total) for i in client.orders)
paid = sum(Decimal(i.amount) for i in payments)
data = [{
"payment_id": p.id,
"amount": p.amount,
"date": p.date.strftime("%d/%m/%Y")
} for p in payments]
# Set the data
self.ids['name'].text = client.name
self.ids['phone'].text = client.phone
self.ids['total'].text = format_brl(total)
self.ids['paid'].text = format_brl(paid)
self.ids['remaining'].text = format_brl(total - paid)
self.ids['payments'].data = reversed(data)
def on_pre_enter(self):
"""Update all information before entering."""
order = self.manager.order
itens = [{
'name': iten['name'],
'quantity': Decimal(iten['quantity']),
'price': Decimal(iten['price'])
} for iten in order.itens]
self.ids['title'].text = f"Detalhes da encomenda número {order.id}."
self.ids['delivered'].text = "Sim" if order.delivered else "Não"
self.ids['local'].text = order.local
self.ids['info'].text = order.extra_info
self.ids['total'].text = format_brl(order.total)
self.ids['itens'].data = itens
def compute_total(self):
"""Calculate the total."""
app = App.get_running_app()
label = app.new_order.sm.current_screen.ids['total']
label.text = format_brl(sum(iten.total_price for iten in self.itens))