### Archive

Posts Tagged ‘Ali’

## Learn To : In Excel – SUMIF and SUMIFS [ Part-2 SUMIFs ]

In SUMIFS we are talking about more than one conditions to apply on the same range or other range before we calculate the SUM of the target range.

Case Assumption: As in Part-1, Assume we have a table, with 5 columns (as in image-1) columns titles are [Date, Item, Quantity, Price and Total] containing our Expendituer and we have another table call it Summaries, we want some totals to be in this table. We can see the main table [Expendituer] and the Summary table as in part-1 but here we will add a year column to the Item-Quantity box, so we want to have the Quantity of an Item in given year. Image-2.

 Image-1 Image-2

So if we write 2018 in Cell I27 we Must get the Quantity of School Bags we bought in 2018. To do this we will write this formula:

SUMIFS ()

=SUMIFS(E22:E30, D22:D30,J28,C22:C30,”*”&I28)

So in Cell K28 we will write =SUMIFS(E22:E30, D22:D30,J28,C22:C30,”*”&I28)

then we can copy the formula to other cells.

Now we have the formula in all the cells we want, we may need to do a little changes to cells number or columns that may been changed during the copy. And here is a screen shot of what we must have.

🙂 Have Fun ..

## Excel, VBA Codes and Formulas-2

March 20, 2020 1 comment

## Learn To : In Excel – SUMIF and SUMIFS [ Part-1 SUMIF ]

Case Assumption: Assume we have a table, with 5 columns (as in image-1) columns titles are [Date, Item, Quantity, Price and Total] containing our Expendituer and we have another table call it Summaries, we want some totals to be in this table. In Image-1 we can see the main table [Expendituer] and the Summary table.

 Image-1

In the Above Expendituer Table we have some [Dummy] data, and in our Summary Table we want to calculate the SUM of each year so in the Cell J22 we shall write this formula: =SUMIF()
SUMIF will take 3 parameters
First one is the range of applying the condition.
Second one is the condition.
Third one is the range to calculate to SUM form. So in our case [Image-1]

The range of applying the condition will be C22:C28

The condition is in Cell I22 [23,24,25 … for each row and year.]

The range to calculate to SUM form will be G22:G28

So in Cell J22 we will write =SUMIF(C22:C28,”*”&I22,G22:G28)

then we can copy the formula to other cells [I23 and I24]

So now we have the Sum in each Year. See Image-2

 Image-2

Now with same formula SUMIF, we can get the Quantity of each Item we purchase, and we will write the formula in Cell J27 [as in Image-1].

So in Cell J27 we will write =SUMIF(D22:D28,I27,E22:E28) as in Image-3 then we copy the formula to Cells [J28, J29, J30 .. and so]

 Image-3

Now we have the sum of Quantity.

🙂 Have Fun ..

## Learn To : In Excel – Drop Down List in a cell.

I start working on a project for a friend, he has some requests to be done on a MS-Excel, so I thought why not to write several posts about MS-Excel capabilities.

MS-Excel is a great application to be used, I will not write to praise the program, but will jump to coding. In Excel we can use dozens of built in ready to use tools and Formulas. Also MS-Excel has a very good, easy to use and learn programming language called VBA (Visual Basic for Application) which with simple code we can perform some tasks and create Menus, buttons and functions that runs in background.

Starting from this post we will use some built-in functions and VBA’s one that I am using in my Excel files.
So let’s say we have a table that has a column called “Pay-Method”, the value we save in this column always is one of three: “Cash, Card, Cheque” we don’t want the user to type it every time, but to select it from a list.

To do this we can use an static approach or a Dynamic approach.

Static Approach: if we have a specific answers that can’t be more like (Yes,No) or as our example above (Cash, Card, Cheque) or similar cases then we can use an static approach. So First Select First cell in the Table, from the menu we will select “Data” then “Data Validation” and select Data Validation.

Now,

• From the Allow box, we select List.
• Then in Source box, we need to type the items we want to appear in each cell as a drop-down list separated by a comma. Cash, Card, Cheque
• We need to check [Ignore Blank and In-cell Dropdown] Then Click OK.

Now we will have a small arrow on the first cell in our Table, to copy the List to other Cells (Beneath) hold the small DOT and Drag it down.

And Now we are DONE, we just create a Dropdown List in all “Pay-Method” Column in the table..

Dynamic Approach: If we have a list of items and this list is growing (We may add more items ti it), such as Fruit list in a grocery, then we will use the Dynamic drop-down list.
In this case I prefer to use a new Excel Tab call it “Setting”, so we will create one. On that Tab create a Table call it “Fruit” and list all the fruits you want to be appear in the drop-down cell list (In this example I will list down F1, F2, F3, F4, F5), Select the table and from Menu select “Format as Table” and just chose any format you want. Here is a screen shot.

 Here is a screen shot

Move the Mouse next to table head until you get small Arrow, and give it a name. as in here..

Now go-back to our main Table and using the same way we did in the Static Approach (from the menu we will select “Data” then “Data Validation” and select Data Validation.) AND

• From the Allow box, we select List.
• Then in Source box, we need to type the Name we select for our table “F-Table_1” for the fruit table
• We need to check [Ignore Blank and In-cell Dropdown] Then Click OK.

Done … Now if we add new Fruit to the list “F6” it will appear in our Drop-Down cell list.

🙂 Have Fun ..

Categories: excel, Learning, Lesson

## Python: Cooking App P-8

Learning : Python, Data-Base, SQlite
Subject: Writing a Cooking Application

RECIPES MENU: Show Recipe During writing all functions of the application I notes that my “Show Recipe” need to be updated, so in this post we will do some changes on “def show_all_rec(opt)” function.

First, we will change the if opt ==”name” to list all the Recipes Name with ID’s and ask the user to Enter a Recipe ID to show its information.
Here is the code ..

``` # Changes on show_all_rec(opt) - if opt =="name"

if opt =="name" :
#First we will list down all Recipes Names.
c.execute("select r_id,r_name from recipes where r_id > 0")
for each_r_name in c.fetchall():
print(' ID:',each_r_name[0], ' Name:',each_r_name[1])

get_rec_id = input ('\n Enter the Recipe ID you want to read: ')
# Get the Recipe information based on ID.
c.execute("select * from recipes where r_id ={}".format(get_rec_id))
for each_basic in c.fetchall():
print('\n  ID: ',each_basic[0])
print('  Name: ',each_basic[1])
print('  Date: ',each_basic[2])
print('  Type: ',each_basic[3])
print('  Other: ',each_basic[4])

print('\n  The Recipe Ingredients: ')
# Get all Recipe Ingredients.
get_sql = '''
select
i_name

from
ingredients_list

INNER JOIN rec_ingredient ON ingredients_list.i_l_id = rec_ingredient.i_l_id
where rec_ingredient.r_id = {}

'''
c.execute(get_sql.format(each_basic[0]))

st = 1
for each in c.fetchall():
print('  ',st,': ',each[0])
st = st + 1

print('\n\n  Cooking Steps: ')
# Get the Cooking Steps.
c.execute("select * from recipes_steps where recipes_steps.r_id = {}".format(each_basic[0]))
st = 1
for each in c.fetchall():
print('\n    Step-',st,': ',each[2])
st = st + 1

print('\n ---------------------------------------------')

```

Here is the out-put screen :

 First we have the Menus, we select 1,1,1 to get “Show Recipe By Name”

 Here is the List of All Recipes and we will enter the ID of the one we want to see.

 Here is the Recipes Information.

Notes That 1. We don’t have any Ingredient (we did not add any) so in coming post we will develop the Edit function to add some Ingredient and change/Update the Recipe Information.
2. We are not using any Validations, so if we enter any dummy data for Date the system will accept it.
3. We are not using any (avoiding Error code) such as Try…except.

## Python: Cooking App P-7

Learning : Python, Data-Base, SQlite
Subject: Writing a Cooking Application

RECIPES MENU: Delete Recipe To Delete a recipe we need to point on it, we will do this by it’s ID. So we can show all recipes by names, then we select the one we want to delete and enter it’s ID, the system will ask to confirm this action by typing (y,Y) then it we will call the delete function. In Delete function “def del_recipe()” we need to delete all the data regarding this ID form three DB Tables, recipes, recipes_steps, rec_ingredient and photo. Although we did not use the photo table and and we just create it for future use, but er will write its code.

Future Plan: In coming weeks we will convert this application “Cooking Application” to GUI “Graphical User Interface” application using tkinter library (Tkinter: is a Python binding to the Tk GUI toolkit) .

Coding: So to Delete a recipe we will show all Recipes and there ID’s sorted by it’s Name and ask the user to enter the ID of the Recipe he/she want to delete.

``` # Code to Delete a Recipe

def del_recipe():
os.system("clear")
print('\n ====== Delete a Recipe =====')

# Start to list down all the Recipes Name.
print("\n\n  List of ALL Recipes we have.")
c.execute("select r_id,r_name from recipes where r_id > 0")
for each_r_name in c.fetchall():
print('   ID:',each_r_name[0], 'Name:',each_r_name[1])

# Now we ask the user to Enter the Recipe ID.
rec_del = input('\n\n   Enter an Recipe ID to be Deleted: ')

# Now we ask the user to Confirm Deleting Recipe.
sure_remove = input('\n The Recipe will be DELETE and can''t be Rolled-Back. Are you sure you want to Remove it [Y,N] ')

if sure_remove in ['y','Y']:
c.execute ("Delete  from recipes_steps where r_id = {}".format(rec_del))
db_conn.commit()
c.execute ("Delete  from recipes where r_id = {}".format(rec_del))
db_conn.commit()
c.execute ("Delete  from rec_ingredient where r_id = {}".format(rec_del))
db_conn.commit()
c.execute ("Delete  from photo where r_id = {}".format(rec_del))
db_conn.commit()

elif sure_remove in ['n','N']: # If the user decide not to delete and select N
print('\n You select NOT to remove the Recipe.')
else :# If the user enter anything else than Y or N
print('\n You must select (Y or N).')

input('\n   .. One Recipe Removed ..   Press any key .. ')

```

## Python: Cooking App P-6

Learning : Python, Data-Base, SQlite
Subject: Writing a Cooking Application

RECIPES MENU: Adding a Recipe.To Add a recipe we need to work on three tables, the user will not know that, the user dose’t care what happening in the application, he/she want the cooking information to be saved and retrieved whenever required.
To do this we First will ask the user to Enter some basic information about the Recipe, such as Name, Date selecting it’s type like is it a Lunch or Dinner and other thing we will see it later while writing the code, then we need to enter the Ingredients of each Recipes, the Ingredients are store in another DB-Table based on our DB-design, so we will list down all the Ingredients and ask the user to select from the list by typing the ID’s of those they want, and if an ingredient does not exist in the list the user will write it.Finally we will ask the user to write the cooking steps.
This is not easy way to do it using Terminal-screen or console (Command line application CLIs), we will convert this application to GUI (Graphical User Interface) later after we finish the application.

Recipe Name: To give a Name to the Recipe.
Recipe Date: The user can Write a date.
Recipe Type: The user will select one of: [Breakfast, Dinner, Lunch, Snack, Sweet]
Recipe Details: Other Details such as the time needed for cooking, other notes.
Recipe Tags: Tags will not be available in this version, but we will work on it when we start doing the GUI version.

So let’s start writing the code..

``` # Adding New Recipe

os.system("clear")
print('\n ====== Adding New Recipe =====')

print('\n First let''s Enter some Information about the Recipe..')
r_name = input('\n\n   Enter The Recipe Name: ').capitalize()
r_date = input('\n\n   Enter The Date in dd.mm.yyyy format: ')

# Now to select the Recipe Type.
print('\n   A Recipe Type can be:\n    1.Breakfast.\n    2.Dinner.\n    3.Lunch.\n    4.Snack.\n    5.Sweet. ')
r_type = False
while r_type == False :
rec_type = input('\n\n   Select a Type [1,2,3,4,5]: ')
if rec_type =='1' :
rec_type ='Breakfast'
r_type = True
elif rec_type =='2' :
rec_type ='Dinner'
r_type = True
elif rec_type =='3' :
rec_type ='Lunch'
r_type = True
elif rec_type =='4' :
rec_type ='Snack'
r_type = True
elif rec_type =='5' :
rec_type ='Sweet'
r_type = True
else :
print('\n   You have to select from the List')

r_details = input ('\n  Enter Short information for the Recipe, like \n   Time for cooking,\n   Country of this Meal,\n   Other short details.\n  [ USE (,) to SEPARATE EACH INFO ]\n\n      Enter here: ')

c.execute ("INSERT INTO recipes (r_name, r_date, r_type, r_details ) VALUES(:r_name,:r_date,:r_type, :r_details)",{"r_name":r_name,"r_date":r_date,"r_type":rec_type, "r_details":r_details})
db_conn.commit()
```

Now, we save the Basic Recipe Information and we have the Recipe ID (PK) and we will use it as a Foreign Key in Recipe-Ingredient and Recipe-Steps. With Recipe-Ingredient we will list down all the recipes and let the user to enter the Id’s of the one’s they will use with there recipe. If the needed Ingredient is not in the list, the user will insert it and it will be added to the Ingredient list. Here is the code for this section. .

``` #This part of code continuing the above part.

os.system("clear")
# Select the Ingredient for the Recipe.
print('\n Now, Select the Ingredients of your Recipe:')
print("\n If the Ingredient is not in the List you will Add it shortly, FIRST select the exist ones\n write it''s ID Separated by ( , ) ")
print('\n  List of Ingredients:')

list_of_ing()

ing_l = input('\n Enter the Ingredients ID Seperated by ( , ) ')

if input ('\n Is there any more Ingredients you want to add? [Y,N]: ') in ['y','Y'] :

new_ing = input('\n Enter the Ingredients Seperated by ( , ): ')
new_ing = new_ing.split(",")

# To get max ingredients ID.
c.execute ("select max(i_l_id) from ingredients_list")
max_ing_id = c.fetchall()[0][0]
ing_l2 =[]

# To add the new ingredients to the ingredients_list .
for each in range(len(new_ing)) :
c.execute ("INSERT INTO ingredients_list (i_name) VALUES(:i_name)",{"i_name":new_ing[each].capitalize() })#ing_name})
db_conn.commit()
ing_l2.append (str(max_ing_id+(each+1)))

ing_l=ing_l.split(",")
ing_l2=ing_l + ing_l2

# To link the ingredients to the recipe.
for each in range (len(ing_l2)):

c.execute ("INSERT INTO rec_ingredient (i_l_id, r_id) VALUES(:i_l_id, :r_id)",{"i_l_id":ing_l2[each],"r_id":rec_max })
db_conn.commit()

```

Now, we have the all Ingredients of the Recipe, also we have the ID or the Recipe, so we can link the Recipe information to the cooking Steeps.
Here the user will write the cooking steps until the user press (Q,q) and Enter.

``` #This part of code continuing the above part.

print('\n  Now we can Write the Cooking Steps, Press Enter After each Step. When you finish just enter (q). ')

stop = False
while stop == False :
c_step = input('\n Enter a Cooking Step: [Press Enter After each Step. q to Finish] :\n   Write Here : ')
if c_step not in ['q','Q'] :
c.execute("INSERT Into recipes_steps (r_id , rec_steps) values (:r_id, :rec_steps)",{"r_id":rec_max,"rec_steps":c_step})
db_conn.commit()
else :
stop = True

input('\n   .. One Recipe Added ..   Press any key .. ')

```

Here are some screen shots of the code and running out-put.

In Next Part: In the next coming part we will work on the Deleting Recipe.

## Python: Cooking App P-5

Learning : Python, Data-Base, SQlite
Subject: Writing a Cooking Application

RECIPES MENU: Once I start reading the Net (blogs and Cooking Books) to see how cookers talking about foods-recipes, I realise that I may need to add something to the DataBase, then I start writing the codes for the “Recipe Menu” and immediately I find the we need to add a new Table; I call it “recipes_steps” it will hold several steps of how to cook a recipe.

 DataBase Diagram

Here is the code to create the new Table and adding the record 0 (Zero).
# To create the Table “recipes_steps” .
sql_recipes_steps =”CREATE TABLE if not exists recipes_steps (st_id INTEGER PRIMARY KEY AUTOINCREMENT,r_id integer, rec_steps text )”
c.execute(sql_recipes_steps)
db_conn.commit()

# To add the Record Zero.
c.execute (“INSERT INTO recipes_steps (st_id) VALUES(:st_id)”,{“st_id”:0})
db_conn.commit()

First let’s see the “Recipe Menu” and from there we will write the codes for each item in the menu. As we saw in Ingredients Menu, same functionality should be here to, Listing all Recipes, Adding new one, Editing and Deleting a recipes. We will write the code for each of them, and here is the code for the “Recipes Menu”

``` # Recipes Menu - Function

while True:
os.system("clear")
print('  --------------------------------------')
print(' 1. Show Recipes.')
print(' 3. Delete Recipe. ')
print(' 4. Edit Recipe.')
print(' 9. Exit')
uinp= input('\n Enter your Selection: ')

if uinp == '1':
show_recipes()
elif uinp == '2':
elif uinp == '3':
del_recipe()
elif uinp == '4':
edit_recipe()
elif uinp =='9':
return
else:
```

So first thing we will work on “Show Recipes”, once the user select Show Recipes another Menu will be display to give more option as in the screen shot..

To display the Recipes based on the options we have, we will write a function that take a parameter based on the user selection so the user can search for a recipe based on it’s Name, Date or other details. Let’s see the code ..

NOTE THAT: We did nothing with Tags option, after we finish the application we will assume that the Business owner ask to add a new requirement to the application, and we will see the impact of this and who to solve it.

In Next Post we will work on the Adding New Recipe to our Cooking Application.