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past_purchases.py
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past_purchases.py
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from datetime import *
from sys import platform
from tkinter import *
import tkinter as tk
from typing import Match
from PIL import ImageTk, Image
import sqlite3
from dateutil.relativedelta import relativedelta
import tkinter.font as tkFont
from tkinter import *
from PIL import ImageTk,Image
from tkinter import messagebox
import math
# For SQL query
from sqlalchemy import create_engine
from pymysql.constants import CLIENT
import pandas as pd
from config import USERNAME, MYSQL_PASSWORD
ORDER_BY_REQUEST_STATUS = """
ORDER BY
CASE r.requestStatus
WHEN 'Submitted' THEN 1
WHEN 'In progress' THEN 2
WHEN 'Submitted and Waiting for payment' THEN 3
WHEN 'Approved' THEN 4
WHEN 'Completed' THEN 5
WHEN 'Cancelled' THEN 6
END,
r.requestID
"""
db = create_engine(f"mysql+pymysql://{USERNAME}:{MYSQL_PASSWORD}@127.0.0.1:3306/ECOMMERCE",
connect_args = {"client_flag": CLIENT.MULTI_STATEMENTS}
)
# Import custom Scrollable Frame
from ScrollableFrame import ScrollableFrame
# table of items only
class Past_Purchases_Table(ScrollableFrame):
def __init__(self, data, *args, **kwargs):
super().__init__(width=800, height=800, *args, **kwargs)
customerId = str(self.master.master.customerId)
with_request = pd.read_sql_query(f"""
SELECT * FROM Items i
LEFT JOIN Payments c USING (itemID)
LEFT JOIN Requests r USING(itemID)
LEFT JOIN Products p USING(productID)
WHERE requestID = (
SELECT max(requestID)
FROM Items i2
LEFT JOIN Payments c2 USING (itemID)
LEFT JOIN Requests r2 USING(itemID)
WHERE i2.itemID = i.itemID
GROUP BY i2.itemID
) and c.customerID = "{customerId}"
{ORDER_BY_REQUEST_STATUS};
""", db)
no_request = pd.read_sql_query(f"""
select i.itemID, p.model, i.colour, i.powerSupply,
i.productionYear, i.factory, r.requestStatus, p.warrantyMonths,
r.requestID, pay.paymentID, p.price
from items i
inner join products p on i.productID = p.productID
left join requests r on i.itemID = r.itemID
left join payments pay on i.itemID = pay.itemID
where i.itemID in (select itemID from payments where customerID = "{customerId}") and r.requestStatus is null
{ORDER_BY_REQUEST_STATUS}
;
""", db)
self.data = pd.concat([with_request, no_request], axis=0)
# labels
tk.Label(self.frame, text="ItemID", anchor="w").grid(row=1, column=0, sticky="ew", padx=10)
tk.Label(self.frame, text="Model", anchor="w").grid(row=1, column=1, sticky="ew", padx=10)
tk.Label(self.frame, text="Colour", anchor="w").grid(row=1, column=2, sticky="ew", padx=10)
tk.Label(self.frame, text="Power Supply", anchor="w").grid(row=1, column=3, sticky="ew", padx=10)
tk.Label(self.frame, text="Production Year", anchor="w").grid(row=1, column=4, sticky="ew", padx=10)
tk.Label(self.frame, text="Factory", anchor="w").grid(row=1, column=5, sticky="ew", padx=10)
tk.Label(self.frame, text="Amount Paid", anchor="w").grid(row=1, column=6, sticky="ew", padx=10)
tk.Label(self.frame, text="Request Status", anchor="w").grid(row=1, column=7, sticky="ew", padx=10)
row = 2
bg = ["#ffffff", "#d9e1f2"]
# populating the table row by row
for entry in data.itertuples():
# print(entry)
itemId = entry.itemID
model = entry.model
colour = entry.colour
powerSupply = entry.powerSupply
productionYear = entry.productionYear
factory = entry.factory
amountPaid = entry.price
if entry.requestStatus == None or math.isnan(entry.requestID):
requestStatus = 'No request made'
else:
allRequests = pd.read_sql_query(f"""
select * from ServiceFees
where requestID = {entry.requestID}
;
""", db)
try:
time_diff = date.today() - allRequests['creationDate'][0]
if time_diff.days > 10 and entry.requestStatus == 'Submitted and Waiting for payment':
requestStatus = "Cancelled"
with db.begin() as conn:
try:
savepoint = conn.begin_nested()
conn.execute(f"""
UPDATE Requests
SET requestStatus = "Cancelled"
WHERE requestID = {entry.requestID}
;
""")
conn.execute(f"""
UPDATE services
SET serviceStatus = "Completed"
where requestID = {entry.requestID}
;
""")
savepoint.commit()
except:
savepoint.rollback()
else:
requestStatus = entry.requestStatus
except:
requestStatus = entry.requestStatus
itemID_label = tk.Label(self.frame, text=str(itemId), anchor="w", borderwidth=2, relief="groove", padx=10, bg=bg[row%2])
model_label = tk.Label(self.frame, text=str(model), anchor="w", borderwidth=2, relief="groove", padx=10, bg=bg[row%2])
colour_label = tk.Label(self.frame, text=str(colour), anchor="w", borderwidth=2, relief="groove", padx=10, bg=bg[row%2])
powerSupply_label = tk.Label(self.frame, text=str(powerSupply), anchor="w", borderwidth=2, relief="groove", padx=10, bg=bg[row%2])
productionYear_label = tk.Label(self.frame, text=str(productionYear), anchor="w", borderwidth=2, relief="groove", padx=10, bg=bg[row%2])
factory_label = tk.Label(self.frame, text=str(factory), anchor="w", borderwidth=2, relief="groove", padx=10, bg=bg[row%2])
amountPaid_label = tk.Label(self.frame, text="$" + "{:.2f}".format(amountPaid), anchor="w", borderwidth=2, relief="groove", padx=10, bg=bg[row%2])
requestStatus_label = tk.Label(self.frame, text=str(requestStatus), anchor="w", borderwidth=2, relief="groove", padx=10, bg=bg[row%2])
itemID_label.grid(row=row, column=0, sticky="ew", pady=2.5, ipady=5)
model_label.grid(row=row, column=1, sticky="ew", pady=2.5, ipady=5)
colour_label.grid(row=row, column=2, sticky="ew", pady=2.5, ipady=5)
powerSupply_label.grid(row=row, column=3, sticky="ew", pady=2.5, ipady=5)
productionYear_label.grid(row=row, column=4, sticky="ew", pady=2.5, ipady=5)
factory_label.grid(row=row, column=5, sticky="ew", pady=2.5, ipady=5)
amountPaid_label.grid(row=row, column=6, sticky="ew", pady=2.5, ipady=5)
requestStatus_label.grid(row=row, column=7, sticky="ew", pady=2.5, ipady=5)
# different button according to what is the request status
paymentID = entry.paymentID
if requestStatus in ['Completed', 'Cancelled', 'No request made']:
requestButton = tk.Button(self.frame, text="Make new request", command = lambda paymentID = paymentID: self.master.master.id_switch_frame(paymentID, Request_Page))
else:
requestButton = tk.Button(self.frame, text="Request details", command = lambda itemId = itemId: self.master.master.id_switch_frame(itemId, Request_Details))
requestButton.grid(row=row, column=8, sticky="ew", pady=2.5, ipady=5)
row += 1
self.launch()
# header only
class Past_Purchase_Page_Header(tk.LabelFrame):
def __init__(self, master, *args, **kwargs):
tk.LabelFrame.__init__(self, master, *args, **kwargs)
self.master = master
global clicked
clicked = tk.StringVar()
clicked.set("Filter by: No filter")
# dropdown filter
optionMenu = OptionMenu(self, clicked,
"Filter by: Submitted",
"Filter by: Submitted and Waiting for payment",
"Filter by: In progress",
"Filter by: Approved",
"Filter by: Cancelled",
"Filter by: Completed",
"Filter by: No request made",
"Filter by: No filter",
command=lambda clicked = clicked: master.filter_status(clicked))
optionMenu.config(width=30)
optionMenu.grid(row=1, column=0, sticky="ew", padx=10)
title = tk.Label(self, text="Past Purchases Page", font=tkFont.Font(size=20), width = 20)
title.grid(row=0, column=0,padx=(10, 5))
# main frame consisting of table and header
class Past_Purchase_Page(Frame):
def __init__(self, master):
Frame.__init__(self, master)
self.master = master
self.header = Past_Purchase_Page_Header(self, borderwidth=0, highlightthickness = 0, pady=10)
customerId = str(self.master.customerId)
with_request = pd.read_sql_query(f"""
SELECT * FROM Items i
LEFT JOIN Payments c USING (itemID)
LEFT JOIN Requests r USING(itemID)
LEFT JOIN Products p USING(productID)
WHERE requestID = (
SELECT max(requestID)
FROM Items i2
LEFT JOIN Payments c2 USING (itemID)
LEFT JOIN Requests r2 USING(itemID)
WHERE i2.itemID = i.itemID
GROUP BY i2.itemID
) and c.customerID = "{customerId}"
{ORDER_BY_REQUEST_STATUS};
""", db)
no_request = pd.read_sql_query(f"""
select i.itemID, p.model, i.colour, i.powerSupply,
i.productionYear, i.factory, r.requestStatus,
p.warrantyMonths, r.requestID, pay.paymentID, p.price
from items i
inner join products p on i.productID = p.productID
left join requests r on i.itemID = r.itemID
left join payments pay on i.itemID = pay.itemID
where i.itemID in (select itemID from payments where customerID = "{customerId}") and r.requestStatus is null
{ORDER_BY_REQUEST_STATUS}
;
""", db)
self.data = pd.concat([with_request, no_request], axis=0)
self.table = Past_Purchases_Table(self.data, self)
self.header.pack(side="top", fill="x", expand=False)
self.table.pack(side="top", fill="both", expand=True)
def show_header():
header = Past_Purchase_Page_Header(self, borderwidth=0, highlightthickness = 0, pady=10)
header.pack(side="top", fill="x", expand=False)
# filtering is performed here
def filter_status(self, curr_view):
self.table.destroy()
customerId = str(self.master.customerId)
with_request = pd.read_sql_query(f"""
SELECT * FROM Items i
LEFT JOIN Payments c USING (itemID)
LEFT JOIN Requests r USING(itemID)
LEFT JOIN Products p USING(productID)
WHERE requestID = (
SELECT max(requestID)
FROM Items i2
LEFT JOIN Payments c2 USING (itemID)
LEFT JOIN Requests r2 USING(itemID)
WHERE i2.itemID = i.itemID
GROUP BY i2.itemID
) and c.customerID = "{customerId}"
{ORDER_BY_REQUEST_STATUS};
""", db)
no_request = pd.read_sql_query(f"""
select i.itemID, p.model, i.colour, i.powerSupply,
i.productionYear, i.factory, r.requestStatus,
p.warrantyMonths, r.requestID, pay.paymentID, p.price
from items i
inner join products p on i.productID = p.productID
left join requests r on i.itemID = r.itemID
left join payments pay on i.itemID = pay.itemID
where i.itemID in (select itemID from payments where customerID = "{customerId}") and r.requestStatus is null
{ORDER_BY_REQUEST_STATUS}
;
""", db)
self.data = pd.concat([with_request, no_request], axis=0)
curr_data = self.data.copy()
if clicked.get() == 'Filter by: No request made':
curr_data = curr_data[curr_data['requestStatus'].isnull()]
elif clicked.get() == 'Filter by: No filter':
curr_data = curr_data
else:
curr_data = curr_data[curr_data['requestStatus'] == clicked.get()[11:]]
self.table = Past_Purchases_Table(curr_data, self)
self.table.pack(side="top", fill="both", expand=True)
# --------------------------------------------------------------------- #
class Request_Page(Frame):
#add currPaymentId ltr
def __init__(self,curr_paymentId, master):
Frame.__init__(self, master)
self.master = master
curr_adminId = self.master.adminId
print(curr_adminId)
print(curr_paymentId)
data2 = pd.read_sql_query(f"""
SELECT pay.paymentID, pay.itemID, c.customerID,
p.model, p.warrantyMonths, i.powerSupply, i.colour,
p.cost, pay.purchaseDate
FROM Payments pay
LEFT JOIN Items i USING(itemID)
LEFT JOIN Products p ON i.productID = p.productID
LEFT JOIN Customers c ON pay.customerID = c.customerID
WHERE pay.paymentID = {curr_paymentId}
;
""", db)
print(data2)
(paymentId, curr_itemId, curr_customerId, curr_model,
curr_warrantyMonths,curr_powerSupply,curr_colour,
curr_cost, curr_purchaseDate) = list(data2.to_records(index=False))[0]
print(curr_adminId)
title = Label(self, text="Request Page", font=('Helvetica 20 bold'))
title.grid(row=0, column=1, pady =20)
toggle = LabelFrame(self, borderwidth = 0)
toggle.grid(row=0, column=1, padx=10)
itemID = Label(self, text=curr_itemId)
itemID.grid(row=2, column=1)
itemID_label = Label(self, text="Item ID: ", font=('Helvetica 12 bold'))
itemID_label.grid(row=2, column=0)
colour_label = Label(self, text="Colour: ", font=('Helvetica 12 bold'))
colour_label.grid(row=3, column=0)
colour = Label(self, text=curr_colour)
colour.grid(row=3, column=1, padx=20)
power_label = Label(self, text="Power Supply: ",font=('Helvetica 12 bold'))
power_label.grid(row=5, column=0)
power = Label(self, text=curr_powerSupply)
power.grid(row=5, column=1, padx=20)
model_label = Label(self, text="Model: ",font=('Helvetica 12 bold'))
model_label.grid(row=6, column=0)
model = Label(self, text=curr_model)
model.grid(row=6, column=1, padx=20)
warranty_label = Label(self, text="Warranty: ", font=('Helvetica 12 bold'))
warranty_label.grid(row=7, column=0)
end_warranty_date = curr_purchaseDate + relativedelta(months=+int(curr_warrantyMonths))
warrantyStatus = self.getValidity(end_warranty_date)
if warrantyStatus == "Expired":
warranty = Label(self, text=warrantyStatus, fg='#f00')
warranty.grid(row=7, column=1, padx=20)
elif warrantyStatus == "Valid":
warranty = Label(self, text=warrantyStatus, fg='green')
warranty.grid(row=7, column=1, padx=20)
issue = Text(self, width = 40,height=3)
issue.grid(row=8, column=1, padx=20)
issue_label = Label(self, text="What is the issue of the item?", font=('Helvetica 12 bold'))
issue_label.grid(row=8)
self.issue_error_label = Label(self, text= "")
submit_btn = Button(self, text="Submit Request", command= lambda: self.submitRequest(data2,issue.get("1.0",'end-1c')))
submit_btn.grid(row=10, column=2, pady=15)
return_btn = Button(self, text="Return to Past Purchases Page", command= lambda: self.returnRequest())
return_btn.grid(row=10, column=0, pady=15)
#Check todays date with the warranty end date
def getValidity(self,end_date):
today = date.today()
if end_date >= today:
return "Valid"
else:
return "Expired"
def submitRequest(self,data2,issue):
# Reset the error message
self.issue_error_label.destroy()
self.issue_error_label = Label(self, text= "", fg="red", anchor="w", width = 30)
if len(issue) == 0:
self.issue_error_label["text"] = "Please fill up this row."
self.issue_error_label.grid(row=9, column=1, columnspan=1, sticky="EW", padx=20)
if (issue):
# Get the data into variables
(paymentId, curr_itemId, curr_customerId,
curr_model,curr_warrantyMonths,curr_powerSupply,
curr_colour,curr_cost,curr_purchaseDate) = list(data2.to_records(index=False))[0]
curr_adminId = self.master.adminId
print("curr_adminId: " + str(curr_adminId))
# Checking for the warranty status
warranty_status = False
end_warranty_date = curr_purchaseDate + relativedelta(months=+int(curr_warrantyMonths))
if self.getValidity(end_warranty_date) == "Valid":
reqstatus = 'Submitted'
warranty_status = True
elif self.getValidity(end_warranty_date) == "Expired":
reqstatus = 'Submitted and Waiting for payment'
warranty_status = False
print("Purchase Date: " + str(curr_purchaseDate))
print("End Warranty Date: " + str(end_warranty_date))
print("Issue: " + issue)
print("Warranty status: " + str(warranty_status))
#Push into the database of request table
with db.begin() as conn:
savepoint = conn.begin_nested()
try:
query = """
SELECT COUNT(*) INTO @r_count FROM Requests;
INSERT INTO Requests(requestID, itemID, administratorID, requestStatus, requestDetails) VALUES
(@r_count + 1,%s,NULL,'%s',"%s");""" % (curr_itemId, reqstatus, str(issue))
conn.execute(query)
print("Added a request row")
# To find the settlement Date (10 days away)
now = date.today()
dateStr = now.strftime("%Y-%m-%d")
end_date = datetime.now() + timedelta(days = 10)
end_dateStr = end_date.strftime("%Y-%m-%d")
# 0 Service Fee if it is still in warranty
if warranty_status:
query2 = f"""
SELECT COUNT(*) INTO @r_count FROM Requests;
INSERT INTO ServiceFees(requestID, amount, creationDate, settlementDate) VALUES
(@r_count, {0}, '%s', '%s')
;""" % (dateStr, dateStr)
conn.execute(query2)
else:
query2 = f"""
SELECT COUNT(*) INTO @r_count FROM Requests;
INSERT INTO ServiceFees(requestID, amount, creationDate, settlementDate) VALUES
(@r_count, 40 + {curr_cost} * 0.2, '%s', NULL)
;""" % (dateStr)
conn.execute(query2)
print("Added a ServiceFee row")
query3 = f"""
SELECT COUNT(*) INTO @r_count FROM Requests;
INSERT INTO Services(requestID, serviceStatus)VALUES
(@r_count, "Waiting for approval")
;
"""
conn.execute(query3)
print("Added a Service row")
# Commit changes to database
savepoint.commit()
# output = conn.execute("SELECT COUNT(*) FROM Requests")
# requestID = output.fetchall()[0][0]
except:
# If fail, rollback the changes
savepoint.rollback()
print("Failed to submit request & servicefee")
self.master.id_switch_frame(curr_itemId, Request_Details)
def returnRequest(self):
self.master.switch_frame(Past_Purchase_Page)
return
class Request_Details(Frame):
def __init__(self, curr_itemId, master):
Frame.__init__(self, master)
self.master = master
data2 = pd.read_sql_query(f"""
SELECT r.itemID, r.requestID, p.model,
r.requestDetails, pay.purchaseDate,
sf.creationDate,sf.settlementDate,
sf.amount, r.requestStatus
FROM Requests r
LEFT JOIN Payments pay USING (itemID)
LEFT JOIN Items i USING(itemID)
LEFT JOIN ServiceFees sf ON r.requestID = sf.requestID
LEFT JOIN Products p ON i.productID = p.productID
WHERE (r.itemID = {curr_itemId} AND
r.requestID = (
SELECT max(r2.requestID)
FROM Items i2
LEFT JOIN Payments c2 USING (itemID)
LEFT JOIN Requests r2 USING(itemID)
WHERE i2.itemID = i.itemID
GROUP BY i2.itemID)
)
;
""", db)
(curr_itemId, curr_requestId, curr_model, curr_requestDetails,
curr_purchaseDate, curr_creationDate, curr_settlementDate,
curr_amount, curr_requestStatus) = list(data2.to_records(index=False))[0]
print(curr_requestStatus)
title = Label(self, text="Request Details", font=('Helvetica 20 bold'))
title.grid(row=0, column=1, pady =20)
requestID = Label(self, text=str(curr_requestId))
requestID.grid(row=1, column=1)
requestID_label = Label(self, text="Request ID: ", font=('Helvetica 12 bold'))
requestID_label.grid(row=1, column=0)
itemID = Label(self, text=curr_itemId)
itemID.grid(row=2, column=1)
itemID_label = Label(self, text="Item ID: ", font=('Helvetica 12 bold'))
itemID_label.grid(row=2, column=0)
model_label = Label(self, text="Model: ", font=('Helvetica 12 bold'))
model_label.grid(row=3, column=0)
model = Label(self, text=curr_model)
model.grid(row=3, column=1, padx=20)
reqDate_label = Label(self, text="Request Date: ", font=('Helvetica 12 bold'))
reqDate_label.grid(row=4, column=0)
reqDate = Label(self, text=curr_creationDate)
reqDate.grid(row=4, column=1, padx=20)
# Calculating the end date after 10 days
end_date = curr_creationDate + timedelta(days = 10)
end_dateStr = end_date.strftime("%Y-%m-%d")
paymentDate_label = Label(self, text="Payment due by: ", font=('Helvetica 12 bold'))
paymentDate_label.grid(row=5, column=0)
paymentDate = Label(self, text=end_dateStr)
paymentDate.grid(row=5, column=1, padx=20)
if int(curr_amount) == 0:
amount_label = Label(self, text="Payment Amount: ", font=('Helvetica 12 bold'))
amount_label.grid(row=6, column=0)
amount = Label(self, text="$" + "{:.2f}".format(curr_amount) + " (No Payment Required)")
amount.grid(row=6, column=1, padx=20)
else:
amount_label = Label(self, text="Payment Amount: ", font=('Helvetica 12 bold'))
amount_label.grid(row=6, column=0)
amount = Label(self, text="$" + "{:.2f}".format(curr_amount))
amount.grid(row=6, column=1, padx=20)
issue_label = Label(self, text="Issue: ", font=('Helvetica 12 bold'))
issue_label.grid(row=7, column=0)
issue = Label(self, text=curr_requestDetails, wraplength=250, justify = 'left')
issue.grid(row=7, column=1, padx=20)
if curr_requestStatus in ['Submitted', 'Submitted and Waiting for payment']:
cancel_btn = Button(self, text="Cancel Request", command= lambda: self.cancelRequest(curr_requestId))
cancel_btn.grid(row=9, column=1
, pady = 15)
return_btn = Button(self, text="Return to Past Payments", command= lambda: self.returnRequest()) # go to past payments
return_btn.grid(row=9, column=0, pady = 15)
## If $0, they cannot return to past_purchases page
if int(curr_amount) > 0:
pay_btn = Button(self, text="Click for Payment", command= lambda: self.payRequest(curr_requestId,curr_amount))
pay_btn.grid(row=9, column=2, pady = 15)
elif curr_requestStatus in ['In progress', 'Approved']:
cancel_btn = Button(self, text="Cancel Request", command= lambda: self.cancelRequest(curr_requestId))
cancel_btn.grid(row=9, column=1, pady = 15)
return_btn = Button(self, text="Return to Past Payments", command= lambda: self.returnRequest()) # go to past payments
return_btn.grid(row=9, column=0, pady = 15)
elif curr_requestStatus in ['Cancelled', 'Completed']:
return_btn = Button(self, text="Return to Past Payments", command= lambda: self.returnRequest()) # go to past payments
return_btn.grid(row=9, column=0, pady = 15)
def cancelRequest(self,requestId):
with db.begin() as conn:
savepoint = conn.begin_nested()
print(requestId)
try:
# Update the request status to Cancelled
query = f"""
UPDATE Requests r
SET r.requestStatus = 'Cancelled'
WHERE r.requestID = {requestId}
;
"""
conn.execute(query)
conn.execute(f"""
UPDATE Services
SET serviceStatus = 'Completed'
where requestID = {requestId}
;
""")
# Commit changes to database
savepoint.commit()
print("The request is cancelled")
except:
# If fail, rollback the changes
savepoint.rollback()
print("Failed to cancel request")
self.master.switch_frame(Cancel_Request_Page)
def payRequest(self, requestId, curr_amount):
with db.begin() as conn:
savepoint = conn.begin_nested()
today = date.today()
try:
# Update the request status to In progress
query = f"""
UPDATE Requests r
SET r.requestStatus = 'In progress'
WHERE (r.requestID = {requestId} AND r.requestStatus != 'Cancelled')
;
"""
conn.execute(query)
print("Update Request to In progress")
# Update the ServiceFee's settlement date
query2 = f"""
UPDATE ServiceFees sf
SET sf.settlementDate = '{today}'
WHERE (sf.requestID = {requestId})
;
"""
conn.execute(query2)
print("Update the ServiceFee's settlement Date to today")
# Commit changes to database
savepoint.commit()
print("The request has been paid")
except:
# If fail, rollback the changes
savepoint.rollback()
print("Failed to pay the request")
self.master.switch_frame(Pay_Request_Page)
# Return to TY Page
def returnRequest(self):
self.master.switch_frame(Past_Purchase_Page)
return
class Cancel_Request_Page(Frame):
def __init__(self, master):
Frame.__init__(self, master)
self.master = master
title = Label(self, text="Request has been cancelled.",font=('Helvetica 20 bold'))
title.grid(row=0, column=400, pady =60)
submit_btn = Button(self, text="Proceed to Past Payments", command= lambda: self.master.switch_frame(Past_Purchase_Page))
submit_btn.grid(row=11, column=400, columnspan=2, pady=15)
class Pay_Request_Page(Frame):
def __init__(self, master):
Frame.__init__(self, master)
self.master = master
title = Label(self, text="Request has been paid. We will be proceeding your request",font=('Helvetica 20 bold'))
title.grid(row=0, column=400, pady =60)
submit_btn = Button(self, text="Proceed to Past Payments", command= lambda: self.master.switch_frame(Past_Purchase_Page))
submit_btn.grid(row=11, column=400, columnspan=2, pady=15)