Это для создания базы данных SQL. затем загружает несколько клиентов из базы данных в список.
Затем вы можете нажать кнопку «Проверить новые цвета», чтобы показать изменение цветов для нечетных строк. это работает, если у вас установлен sqlalchemy в качестве модуля.
from Tkinter import *
import ttk
from sqlalchemy import Column, ForeignKey, Integer, String, Text
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import relationship
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
base = declarative_base()
class Customer(base):
__tablename__='Customer_Details'
Id = Column(Integer, primary_key=True)
first_name = Column(String(64))
last_name = Column(String(64))
class DB_connection(object):
def __enter__(variable):
variable.engine = create_engine("sqlite:///example.db")
base.metadata.bind = variable.engine
variable.DBSession = sessionmaker(bind=variable.engine)
variable.Session = variable.DBSession
variable.session = variable.Session()
return variable
def __exit__(variable, exc_type, exc_val, exc_tb):
variable.session.commit()
variable.session.close()
class Test(Frame):
def __init__(self):
Frame.__init__(self)
self.pack()
self.listbox()
self.buttons()
def listbox(self):
global new_customer_lb
scrollbar = Scrollbar(self, orient="vertical")
new_customer_lb = ttk.Treeview(self, columns=('ID','First Name','Last Name'))
new_customer_lb['show']='headings'
new_customer_lb.heading('#1', text= 'ID')
new_customer_lb.column('#1', width=50, stretch=NO)
new_customer_lb.heading('#2', text= 'First Name')
new_customer_lb.column('#2', width=100, stretch=NO)
new_customer_lb.heading('#3', text= 'Last Name')
new_customer_lb.column('#3', width=100, stretch=NO)
new_customer_lb.configure(yscroll = scrollbar.set, selectmode="browse")
scrollbar.config(command=new_customer_lb.yview)
new_customer_lb.pack()
def buttons(self):
db = Button(self, text='make DB', command=lambda:self.create_db())
customer = Button(self, text='create customers', command=lambda:self.create_customers())
load = Button(self, text='show customers', command=lambda:self.load_working_customers())
test = Button(self, text='test new colors', command=lambda:self.test_colors())
db.pack()
customer.pack()
load.pack()
test.pack()
def create_db(self):
print("start create db function")
engine = create_engine('sqlite:///example.db')
base.metadata.create_all(engine)
print("Success create db function")
def create_customers(self):
print ('Start add customer sql')
customer1 = Customer(first_name='first1',last_name='last1')
customer2 = Customer(first_name='first2',last_name='last2')
customer3 = Customer(first_name='first3',last_name='last3')
customer4 = Customer(first_name='first4',last_name='last4')
with DB_connection() as DB:
DB.session.add_all([customer1,customer2,customer3,customer4])
print ('sucess add customer sql')
def load_working_customers(self):
new_customer_lb.delete(*new_customer_lb.get_children())
with DB_connection() as DB:
for a,b,c in DB.session.query(Customer.Id,Customer.first_name,Customer.last_name).order_by(Customer.Id):
new_customer_lb.insert('','end', values=(a,b,c))
def test_colors(self):
new_customer_lb.delete(*new_customer_lb.get_children())
### configure even and odd here
new_customer_lb.tag_configure("evenrow",background='white',foreground='black')
new_customer_lb.tag_configure("oddrow",background='black',foreground='white')
with DB_connection() as DB:
## this loop will take 'a' (Customer.Id) and test if even or odd
for a,b,c in DB.session.query(Customer.Id,Customer.first_name,Customer.last_name).order_by(Customer.Id):
if a % 2 == 0:
new_customer_lb.insert('','end', values=(a,b,c), tags=('evenrow',))
else:
new_customer_lb.insert('','end', values=(a,b,c), tags=('oddrow',))
root = Tk()
app = Test()
app.mainloop()