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Python: My Orders Tracker P-4
Learning : Pythn, sqlite, Database, SQL
Subject: Create a system to track the orders
In this last part we will write the code to Edit an Order, in editing an order function first we will show all orders and will ask the user to select the one to be EDIT, then we will display that order detail on the screen and ask the user to confirm the action by entering ‘Y’ [our code will handel both y and Y]. We will ask the user about each attribute in the Order details if it need to be change or [Just press Enter to Keep the Current Data], also if the user enter ‘e’ or ‘E’ we will exit from the Editing mode.
Here is the code ..
# Function to Edit an Order
def edit_order():
os.system('clear')
print("\n==========[ Edit Orders ]==========")
show_order('yes')
edit_order = input(' Select the Order ID to be Edited. [E to Exit] > ')
if edit_order in ['e','E'] :
return
elif not edit_order.isnumeric() :
input('\n You need to enter an Order''s ID [Numeric]. .. Press any Key .. ')
return
try:
c.execute ("select * from orders where o_id ={}".format(edit_order))
order_list = c.fetchone()
if order_list == [] :
input('\n ID {} Not Exsist. .. Press any key to continue. '.format(edit_order))
return
os.system('clear')
print("\n==========[ Edit Orders ]==========\n")
print('\n Details of the Order you select:\n ')
print(" "*15,"ID: ",order_list[0])
print(" "*13,"Date: ",order_list[1])
print(" "*5,"Order Number: ",order_list[2])
print(" "*12,"Price: ",order_list[4])
print(" "*9,"Quantity: ",order_list[5])
print(" "*3,"Shipment Price: ",order_list[6])
print(" "*7,"Total Cost: {:.2f}".format((order_list[4]*order_list[5]) + order_list[6]))
print(" "*6,"Description: ",order_list[3])
print(" "*12,"Image:",order_list[8])
print(" "*13,"Link:",order_list[7])
user_confirm = input("\n\n You Select to EDIT the above Order, Enter Y to confirm, E to Exit. > ")
if user_confirm in ['e','E'] :
input('\n You entered ''E'' to Exit. Nothing will be change. Press any key. ')
return
if user_confirm in ['y','Y'] :
#To Edit the order..
print("#"*57)
print("##"," "*51,"##")
print("## NOTE: Enter E any time to EXIT/Quit."," "*12,"##")
print("## OR JUST Press Enter to keep the Current data."," ##")
print("##"," "*51,"##")
print("#"*57,)
while True :
new_date = input (f'\n The current date is: {order_list[1]}, Enter the New date as[dd-mm-yyyy] > ')
if e_to_exit(new_date) =='e' : return
if new_date =="" : break # Break the while loop if the user want to keep the current Date.
if date_validation (new_date) == 'valid' :
break
else :
print(date_validation (new_date))
new_onum = input (f'\n The current Order Number is: {order_list[2]}, Enter the New Order Number. [E to Exit]. > ')
if e_to_exit(new_onum) =='e' : return
new_qunt = input (f'\n The current Quantity is: {order_list[5]}, Enter the New Quantity. [E to Exit]. > ')
if e_to_exit(new_qunt) =='e' : return
new_price = input (f'\n The current Price is: {order_list[4]}, Enter the New Price. [E to Exit]. > ')
if e_to_exit(new_price) =='e' : return
new_ship_price = input (f'\n The current shipment Price is: {order_list[6]}, Enter the New Quantity. [E to Exit]. > ')
if e_to_exit(new_ship_price) =='e' : return
new_link = input (f'\n The current link is: {order_list[7]}, Enter the New Link. [E to Exit]. > ')
if e_to_exit(new_link) =='e' : return
new_image = input (f'\n The current Image is: {order_list[8]}, Enter the New Image (path). [E to Exit]. > ')
if e_to_exit(new_image) =='e' : return
new_desc = input (f'\n The current Description is:\n {order_list[3]}.\n\n Enter the New Description. [E to Exit]. > ')
if e_to_exit(new_image) =='e' : return
# Updating the record in the DataBase.
if new_date > '' and new_date != "e" :
c.execute("update orders set order_date = '{}' where o_id = {}".format(new_date,int(order_list[0])))
db_conn.commit()
if new_onum > '' and new_onum != "e" :
c.execute("update orders set order_num = '{}' where o_id = {}".format(new_onum,int(order_list[0])))
db_conn.commit()
if new_qunt > '' and new_qunt != "e" :
c.execute("update orders set order_quantity = '{}' where o_id = {}".format(new_qunt,int(order_list[0])))
db_conn.commit()
if new_price > '' and new_price != "e" :
c.execute("update orders set order_price = '{}' where o_id = {}".format(new_price,int(order_list[0])))
db_conn.commit()
if new_ship_price > '' and new_ship_price != "e" :
c.execute("update orders set order_price = '{}' where o_id = {}".format(new_ship_price,int(order_list[0])))
db_conn.commit()
if new_link > '' and new_link != "e" :
c.execute("update orders set order_link = '{}' where o_id = {}".format(new_link,int(order_list[0])))
db_conn.commit()
if new_image > '' and new_image != "e" :
c.execute("update orders set order_img = '{}' where o_id = {}".format(new_image,int(order_list[0])))
db_conn.commit()
if new_desc > '' and new_image != "e" :
new_desc = " ".join([word.capitalize() for word in new_desc.split(" ")])
c.execute("update orders set order_desc = '{}' where o_id = {}".format(new_desc,int(order_list[0])))
db_conn.commit()
input('\n One record has been EDITED and Saved... \n ... Press any key to Continue ...')
else:
input('\n Wrong input ... Press any key to continue ..')
except:
pass
[All the System Codes available in Download Page.]
Finish: Now we have an application that will store and retrieve our simple order data.
Enhancement: We can do some enhancement in [link and image] data part to show and display them in better way.
| Part 1 | Part 2 | Part 3 | Part 4 |
To Download my Python code (.py) files Click-Here
Follow me on Twitter..By: Ali Radwani
Flowers in my lens … 3
Here is a mcro photo sample taken with #galaxy #Note9 phone for some flowers in my garden..
For mor follow me on Twitter @h_ta3kees
Another sketch challenge: The House
This week sketch challenge @1hour1sketch is to Draw a Red House, so here is my sketch using pencil, black Pen and watercolour. More Sketches on my Sketch page .. also follow me on Twitter @h_ta3kees
Python: My Orders Tracker P-3
Learning : Pythn, sqlite, Database, SQL
Subject: Create a system to track the orders
In this part we will write the code to Delete an Order that we have from our system, also we will add some validations on the user input, like if the user enter something not from the menu, or to do so, first we will re-call the show_orders() function that we have and passing the ‘yes’ parameter which means we are calling the function from inside another function [we will not print the function header, and will not clear the screen]. Then we will ask the user to select/Enter the ID of the order to be Deleted, after that we will print tha order details again on the screen and ask the user to confirm Deleting command by entering ‘Y’ … thats it.. let’s write the code..
# Delete Order
def del_order():
os.system('clear')
print("\n==========[ Delete Orders ]==========\n")
show_order('yes')
del_order = input(' Select the Order ID to be Deleted. [E to Exit] > ')
if not del_order.isnumeric() :
input('\n You need to enter an Orders ID [Numeric]. .. Press any Key .. ')
return
elif del_order in ['e','E'] :
return
try:
c.execute ("select * from orders where o_id ={}".format(del_order))
order_list = c.fetchone()
if order_list == [] :
input('\n ID {} not exsist.'.format(del_order))
return
os.system('clear')
print("\n==========[ Delete Orders ]==========\n")
print('\n Details of the Order you select:\n ')
print(" ID: ",order_list[0])
print(" Date: ",order_list[1])
print(" Order Number: ",order_list[2])
print(" Price: ",order_list[4])
print(" Quantity: ",order_list[5])
print(" Shipment Price: ",order_list[6])
print(" Total Cost: {:.2f}".format((order_list[4]*order_list[5]) + order_list[6]))
print("\n Description:",order_list[3])
print(" Image:",order_list[8])
print(" Link:",order_list[7])
user_confirm = input("\n\n You Select to DELETE the above Order, Enter Y to confirm, E to Exit. > ")
if user_confirm in ['y','Y'] :
#To Delete the order..
c.execute ("delete from orders where o_id ={}".format(int(del_order)))
db_conn.commit()
input('\n One record has been DELETED ... \n ... Press any key to Continue ...')
elif user_confirm in ['n','N']:
input("\n You select not to DELETE any thing. Press any key to Continue .. ")
elif user_confirm in ['e','E']:
input("\n You select stop the process and EXIT. ... Press any key to Continue .. ")
return
else:
input('\n Wrong input ... Press any key to continue ..')
except:
pass
The user select #3 from the menu to Delete an Order |
The screen display the list of orders we have in the system, and the user select Order ID Number 3 to delete it. |
The screen display the details of the order ID 3 and ask the user to confirm the deleting by entering ‘Y’ |
In Next Post: In the coming post P4 , we will write the codes to Edit an order information.
| Part 1 | Part 2 | Part 3 | Part 4 |
To Download my Python code (.py) files Click-Here
By: Ali Radwani
A Sketch from Five years back
Looking back in my sketchbooks this is a sketch from 2016 on same day 8.3.2016, in this one I didn’t use pencil, and I was fast in sketching against the time. Later I did some tuning and retouching. ..
Another sketch challenge: Horse
This week sketch challenge @1hour1sketch is to Draw a Horse, so here is my sketch using pencil, black Pen. More Sketches on my Sketch page .. also follow me on Twitter @h_ta3kees
Flowers in my lens.. 3
Here is another photo sample taken with #galaxy #Note9 phone for some flowers in my garden..
For mor follow me on Twitter @h_ta3kees
Python: My Orders Tracker P-2
Learning : Pythn, sqlite, Database, SQL
Subject: Create a system to track the orders
In this part we will write the code to Add new Order to the system, and to Show the orders we have in the database. Also we will write tow new functions that we will use in our application, one is the Date Validation and the other is just to check if the user enter a [q or Q] during collecting data [Q mean Quit] then we will call the quit() function.
Before we start the Add new order function, we will write the def date_validation (the_d) : and we will pass the date that the user enter and will check if it is in the right format, here in our application we will check if it is in [dd-mm-yyyy] format, the function will return the ‘valid’ string if the date in in right format, otherwise it will return a message of error.
Here is the function code ..
# Date Validation function.
def date_validation (the_d) :
if the_d=="" or the_d[2] !='-' or the_d[5] !='-' :
return '\n Date Not Valid. [Date format: dd-mm-yyyy]'
else:
if not(len((the_d.split("-")[2])) == 4 ):
return '\n Date Not Valid "Bad Year". [Date format: dd-mm-yyyy].'
if not (len((the_d.split("-")[1])) == 2 and (int(the_d.split("-")[1]) > 0 and int(the_d.split("-")[1]) 0 and int(the_d.split("-")[0]) <=31)) :
return '\n Date Not Valid "Bad Day". [Date format: dd-mm-yyyy].'
return 'valid'
 |
The other function as we said, we will call it after each data entry to check on user input if it is ‘Q’ or Not. Here is the code..
def q_to_quit(check):
# If the user enter [q or Q] the function will return quit function.
if check in ['q','Q'] :
return quit()
Now, we will start to write the function to Add new order, we will ask the user to enter the date for the order, such as Order date, order number, the description, price and so-on. Here is the code..
# Function to add new order to the system.
def add_order():
os.system('clear')
print("\n==========[ Add New Order ]==========\n")
while True :
print(' NOTE: Enter Q any time to EXIT/Quit. \n')
order_date = input(' Enter the Date of the Order. as[dd-mm-yyyy] > ')
q_to_quit(order_date)
if date_validation (order_date) == 'valid' :
break
else :
print(date_validation (order_date))
order_Num = input(' Enter the order ID or Number. > ')
q_to_quit(order_Num)
order_desc = input(' Enter the order Description. > ')
q_to_quit(order_desc)
order_price = input(' Enter the Order Price. > ')
q_to_quit(order_price)
order_quantity = input(' Enter the quantity of the order. > ')
q_to_quit(order_quantity)
shipment_price = input(' Enter the shipment_price. > ')
q_to_quit(order_price)
order_link = input(' Enter the hyper Link to the Order. > ')
q_to_quit(order_link)
order_img = input(' Enter the Image file path. > ')
q_to_quit(order_img)
order_desc = " ".join([word.capitalize() for word in order_desc.split(" ")])
c.execute ("INSERT INTO orders (order_date, order_num, order_desc, order_price,order_quantity, shipment_price , order_link, order_img ) VALUES(:order_date, :order_Num, :order_desc, :order_price, :order_quantity, :shipment_price , :order_link, :order_img)", {"order_date":order_date, "order_Num":order_Num , "order_desc":order_desc, "order_price":order_price,"order_quantity":order_quantity, "shipment_price":shipment_price , "order_link":order_link, "order_img":order_img})
db_conn.commit()
input('\n Press any key to Contenu..')
After adding a records to the database, now we want to show what we have and print it on the screen, so we will write a function to Show the data. Here is the code..
# Function to display the data on the screen.
def show_order():
os.system('clear')
print("\n==========[ Show Orders ]==========\n")
c.execute ("select * from orders where o_id >0")
order_list = c.fetchall()
for x in range (0,len(order_list)):
print(" ID: ",order_list[x][0]," "*(10-(len(str(order_list[x][0])))), end='')
print("Date: ",order_list[x][1]," "*2, end='')
print(" Order Number: ",order_list[x][2]," "*(8 - len(order_list[x][2])))
print("Price: ",order_list[x][4]," "*(6 - len(str(order_list[x][4]))), end='')
print("Quantity: ",order_list[x][5]," "*(11 - len(str(order_list[x][5]))), end='')
print("Shipment Price: ",order_list[x][6]," "*(10 - len(str(order_list[x][6]))), end='')
print("[ Total Cost: ",(order_list[x][4]*order_list[x][5]) + order_list[x][6],"]")
print("\nDescription:",order_list[x][3])
print("Image:",order_list[x][8])
print("Link:",order_list[x][7])
print("-------------------------------------------------------------------\n")
input('\n Press any key to Contenu.. ')
 |
In Next Post: In the coming post P3 , we will write the codes to Delete an Order and to Edit an order.
To Download my Python code (.py) files Click-Here
By: Ali Radwani
Flowers in my lens.. 2
Using the #galaxy #Note9 I take a photo of this flowers in my garden. You may follow me on Twitter Here.
Python: My Orders Tracker P-1
Learning : Pythn, sqlite, Database, SQL
Subject: Create a system to track the orders
Overview:
To track and manage the orders we making through the Internet, we will use the SQlite DateBase to store the data and Python to write the code.
Data we collect:
We will collect the following: order_date, order_ID, order_desc, order_price, shipment_price, order_quantity, order_link, order_img,
Functions: In this project we will create several functions related to the Order Management such as
– Add new Order.
– Edit an Order.
– Delete an Order.
– Show the orders.
Also we will use some of our older functions like date validation.
In Part 1:
– We will set-up the database, create the connection.
– We will create wote the code to create the table, and insert the zero-record.
– We will create the functions names, and the Main-Menu.
So, first code in this part is to import sqlite3, os
then, we will write the database connection as the commeing code:
# Create the data-base and name it as myorders.
db_conn = sqlite3.connect (“myorders.db”)
# set the connection.
c = db_conn.cursor()
Then, we will start writing the the code for the main menu and the functions names that we may have in the application, as in all our systems we will have the three most used function to Add, Edit and Delete the an Order, also we need to show the orders in our system/database, we also will use other function that will help us to Validate the user input such as Date-Validating.
Now, we will start to write the code, first the Main-Menu:
# The Main Menu
def main_menu():
os.system('clear')
print("\n==========[ Main Menu ]==========")
print(' 1. Add New Order.')
print(' 2. Edit an Order.')
print(' 3. Delete an Order.')
print(' 4. Show Orders.')
print(' 9. Exit.')
user_choice = input("\n Select from the Menu: > ")
# we will return the user choice.
return user_choice
Now, we will have the all functions name with header code.
# All functions names with Header
def add_order():
os.system('clear')
print("\n==========[ Add New Order ]==========")
input('\n Press any key to Contenu..')
def edit_order():
os.system('clear')
print("\n==========[ Edit an Order ]==========")
input('\n Press any key to Contenu..')
def del_order():
os.system('clear')
print("\n==========[ Delete an Order ]==========")
input('\n Press any key to Contenu..')
def show_order():
os.system('clear')
Last thing in this part, we will write the main while function in the body part that will call the Main_Menu and keep the user in the application until he/she select number 9 in the menu that mean Exit.
# running the menu and waiting for the user input.
while True :
user_select = main_menu()
if user_select == '1' :
add_order()
elif user_select == '2' :
edit_order()
elif user_select == '3' :
del_order()
elif user_select == '4' :
show_order()
elif user_select == '9' :
print('\n\n Thank you for using this Appliation. ')
break
else :
input('\n Select Only from the list.. Press any key and try again..')
In Next Post: In the coming post P2, we will write the codes for the Add new Order to the system also to Show the list of orders we have in the databse.
| Part 1 | Part 2 | Part 3 | Part 4 |
To Download my Python code (.py) files Click-Here
By: Ali Radwani
Taking pictures is not my main daily practices, but when i start playing with my camera, i really enjoy my self.
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Ali's Photography Space... 