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Add stock 'antipurchase' for auditing

This commit is contained in:
Christoffer Viken 2017-02-21 15:38:41 +00:00
parent 015c64a2ac
commit 8977071b3e
2 changed files with 45 additions and 39 deletions
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61
db.py
View File

@ -1,7 +1,7 @@
from sqlalchemy import Table, Column, Integer, String, MetaData, ForeignKey, create_engine, DateTime, Boolean, or_
from sqlalchemy import Column, Integer, String, ForeignKey, create_engine, DateTime, Boolean
from sqlalchemy.orm import sessionmaker, relationship, backref
from sqlalchemy.ext.declarative import declarative_base
from math import ceil
from math import ceil, floor
import datetime
import conf
@ -9,6 +9,7 @@ engine = create_engine(conf.db_url)
Base = declarative_base()
Session = sessionmaker(bind=engine)
class User(Base):
__tablename__ = 'users'
name = Column(String(10), primary_key=True)
@ -20,7 +21,7 @@ class User(Base):
card_re = r"(([Nn][Tt][Nn][Uu])?[0-9]+)?"
rfid_re = r"[0-9]*"
def __init__(self, name, card, rfid, credit=0):
def __init__(self, name, card, rfid=None, credit=0):
self.name = name
if card == '':
card = None
@ -39,6 +40,7 @@ class User(Base):
def is_anonymous(self):
return self.card == '11122233'
class Product(Base):
__tablename__ = 'products'
@ -61,7 +63,8 @@ class Product(Base):
self.hidden = hidden
def __repr__(self):
return "<Product('%s', '%s', '%s', '%s', '%s')>" % (self.name, self.bar_code, self.price, self.stock, self.hidden)
return "<Product('%s', '%s', '%s', '%s', '%s')>" %\
(self.name, self.bar_code, self.price, self.stock, self.hidden)
def __str__(self):
return self.name
@ -80,19 +83,20 @@ class UserProducts(Base):
class PurchaseEntry(Base):
__tablename__ = 'purchase_entries'
id = Column(Integer, primary_key=True)
purchase_id = Column(Integer,ForeignKey("purchases.id"))
product_id = Column(Integer,ForeignKey("products.product_id"))
purchase_id = Column(Integer, ForeignKey("purchases.id"))
product_id = Column(Integer, ForeignKey("products.product_id"))
amount = Column(Integer)
product = relationship(Product,backref="purchases")
product = relationship(Product, backref="purchases")
def __init__(self, purchase, product, amount):
self.product = product
self.product_bar_code = product.bar_code
self.purchase = purchase
self.amount = amount
def __repr__(self):
return "<PurchaseEntry('%s', '%s')>" % (self.product.name, self.amount )
return "<PurchaseEntry('%s', '%s')>" % (self.product.name, self.amount)
class Transaction(Base):
@ -115,13 +119,11 @@ class Transaction(Base):
self.purchase = purchase
self.penalty = penalty
def perform_transaction(self):
def perform_transaction(self, ignore_penalty=False):
self.time = datetime.datetime.now()
self.amount *= self.penalty
if not ignore_penalty:
self.amount *= self.penalty
self.user.credit -= self.amount
if self.purchase:
for entry in self.purchase.entries:
entry.product.stock -= entry.amount
class Purchase(Base):
@ -129,12 +131,8 @@ class Purchase(Base):
id = Column(Integer, primary_key=True)
time = Column(DateTime)
# user_name = Column(Integer, ForeignKey('users.name'))
price = Column(Integer)
# performed = Column(Boolean)
# user = relationship(User, backref=backref('purchases', order_by=id))
# users = relationship(User, secondary=purchase_user, backref='purhcases'
transactions = relationship(Transaction, order_by=Transaction.user_name, backref='purchase')
entries = relationship(PurchaseEntry, backref=backref("purchase"))
@ -142,26 +140,37 @@ class Purchase(Base):
pass
def __repr__(self):
return "<Purchase(%d, %d, '%s')>" % (self.id, self.price, self.time.strftime('%c'))
return "<Purchase(%d, %d, '%s')>" % (int(self.id), self.price, self.time.strftime('%c'))
def is_complete(self):
return len(self.transactions) > 0 and len(self.entries) > 0
def price_per_transaction(self):
return int(ceil(float(self.price)/len(self.transactions)))
def price_per_transaction(self, round_up=True):
if round_up:
return int(ceil(float(self.price)/len(self.transactions)))
else:
return int(floor(float(self.price)/len(self.transactions)))
def set_price(self):
def set_price(self, round_up=True):
self.price = 0
for entry in self.entries:
self.price += entry.amount*entry.product.price
if len(self.transactions) > 0:
for t in self.transactions:
t.amount = self.price_per_transaction()
t.amount = self.price_per_transaction(round_up=round_up)
def perform_purchase(self):
def perform_purchase(self, ignore_penalty=False, round_up=True):
self.time = datetime.datetime.now()
self.set_price()
self.set_price(round_up=round_up)
for t in self.transactions:
t.perform_transaction(ignore_penalty=ignore_penalty)
for entry in self.entries:
entry.product.stock -= entry.amount
def perform_soft_purchase(self, price, round_up=True):
self.time = datetime.datetime.now()
self.price = price
for t in self.transactions:
t.amount = self.price_per_transaction(round_up=round_up)
for t in self.transactions:
t.perform_transaction()
# self.user.credit -= self.price
# self.performed = True

23
text_interface/addstock.py
View File

@ -1,7 +1,7 @@
from math import ceil
import sqlalchemy
from db import Product, User, Transaction
from db import Product, User, Transaction, PurchaseEntry, Purchase
from text_interface.helpermenus import Menu
@ -48,21 +48,15 @@ much money you're due in credits for the purchase when prompted.\n'''
# user from accidentally killing it
self.exit_confirm_msg = 'Abort transaction?'
else:
# thing = None
if not self.complete_input():
if self.confirm('Not enough information entered. Abort transaction?', default=True):
return False
continue
break
# Add the thing to the pending adjustments:
self.add_thing_to_pending(thing, amount, thing_price)
if self.confirm('Do you want to change the credited amount?', default=False):
self.price = self.input_int('Total amount> ', (1, 100000), default=self.price)
self.perform_transaction()
def complete_input(self):
@ -77,8 +71,6 @@ much money you're due in credits for the purchase when prompted.\n'''
print('\n%-' + str(Product.name_length - 1) + 's Amount') % "Product"
print(6 + Product.name_length) * '-'
if len(self.products):
# print "Products added:"
# print (6+Product.name_length)*'-'
for product in self.products.keys():
print('%' + str(-Product.name_length) + 's %5i') % (product.name, self.products[product][0])
print(6 + Product.name_length) * '-'
@ -98,13 +90,9 @@ much money you're due in credits for the purchase when prompted.\n'''
self.products[thing] = [amount, price]
def perform_transaction(self):
# self.user.credit += self.price
description = self.input_str('Log message> ', length_range=(0, 50))
if description == '':
description = 'Purchased products for PVVVV, adjusted credit ' + str(self.price)
transaction = Transaction(self.user, -self.price, description)
transaction.perform_transaction()
self.session.add(transaction)
for product in self.products:
value = max(product.stock, 0) * product.price + self.products[product][1]
old_price = product.price
@ -115,6 +103,15 @@ much money you're due in credits for the purchase when prompted.\n'''
print "New stock for %s: %d" % (product.name, product.stock), \
("- New price: " + str(product.price) if old_price != product.price else ""), \
("- Removed hidden status" if old_hidden != product.hidden else "")
purchase = Purchase()
Transaction(self.user, purchase=purchase, amount=-self.price, description=description)
for product in self.products:
PurchaseEntry(purchase, product, -self.products[product][0])
purchase.perform_soft_purchase(-self.price, round_up=False)
self.session.add(purchase)
try:
self.session.commit()
print "Success! Transaction performed:"