Changes to the Python code

README.md

@@ -1,8 +1,8 @@
-## Lab Three
+# Lab Three
 Python script to create,read,update,delete (CRUD) a row from a **table**
 
 
-## Run Locally
+# Run Locally
 
 Clone the project
 
@@ -19,31 +19,103 @@ Go to the project directory
 Install dependencies
 
 ```bash
-  pip install -r requirements.txt
+  python -m pip install -r requirements.txt
 ```
 
-Create Table
+## Create Table
+Hiding database base credentials instead of hard coding by setting the passwords as environment variables
+(added this to all of the table code operations)
+Install dotenv package
+```bash
+python -m pip install python-dotenv
+```
+
+Create a .env file
+```bash
+DB_USER=root
+DB_PASSWORD=your_secret_password
+```
+
+Then add to `create_db.py` 
+```bash
+from dotenv import load_dotenv
+import os
+import mysql.connector
+
+
+load_dotenv()
+
+db_user = os.getenv("DB_USER")
+db_password = os.getenv("DB_PASSWORD")
+
+
+# Connect to MySQL Server
+conn = mysql.connector.connect(
+    host="localhost",
+    user=db_user,
+    password=db_password
+)
+
+# Create a cursor object
+cursor = conn.cursor()
+```
 
+Make permananent for local development
+```bash
+export DB_USER="your_mysql_user"
+export DB_PASSWORD="your_mysql_password"
+```
+Edited the code to create the tables in form of a dictionary and count all tables created by the code and sisplay the output
 ```bash
   python create_table.py
 ```
-Insert Table
+
+## Insert Table
+Inserts tables innto the created tables 
 
 ```bash
   python insert_table.py
 ```
-Select Rows from a Table
+
+## Select Rows from a Table
 
 ```bash
   python select.py
 ```
-Update a row from a Table
+
+## Update a row from a Table
 
 ```bash
   python update_table.py
 ```
-Delete a Row from a Table
 
+## Delete a Row from a Table
+
+```bash
+  python delete_table.py
+```
+
+To be able to update the changes we made to this code, we need to fork the original repository
+1. Click *fork* on the original repository
+2. Get the fork URL
+```bash
+git remote set-url origin https://github.com/yourusername-forkedURL/repo.git
+```
+3. Check which branch we are on
 ```bash
-  python delete.py
+git remote -v
+```
+4. Push the new code back to the forked branch/the fork
+```bash
+git push -u origin main
+```
+5. Double check to make sure all remote files match the files on your local repository. If not, check then add them using
+```bash 
+git status
+git add README.md
+git commit -m "Update README content"
+git push -u origin main
 ```
+6. Create a pull request on your fork on Github
+- Click "Compare and pull request"
+- Add a title/description and submit the PR

create_db.py

@@ -0,0 +1,31 @@
+from dotenv import load_dotenv
+import os
+import mysql.connector
+
+load_dotenv()
+
+db_user = os.getenv("DB_USER")
+db_password = os.getenv("DB_PASSWORD")
+
+
+# Connect to MySQL Server
+conn = mysql.connector.connect(
+    host="localhost",
+    user=db_user,
+    password=db_password
+)
+
+# Create a cursor object
+cursor = conn.cursor()
+
+# Create a new database
+database_name = "movies" # Add a unique Database name
+cursor.execute(f"CREATE DATABASE IF NOT EXISTS {database_name}")
+
+print(f"Database '{database_name}' created successfully!")
+
+# Close the connection
+cursor.close()
+conn.close()
+
+

create_table.py

@@ -1,36 +1,52 @@
+from dotenv import load_dotenv
+import os
 import mysql.connector
 
+load_dotenv()
+
+db_user = os.getenv("DB_USER")
+db_password = os.getenv("DB_PASSWORD")
+
 # Connect to MySQL Server
 conn = mysql.connector.connect(
     host="localhost",
     database="movies",
-    user="root",  
-    password=" "  # Add your password
+    user=db_user,
+    password=db_password
 )
 
 # Create a cursor object
 cursor = conn.cursor()
 
-# Execute the SQL statement to create the table
-cursor.execute("""
-    CREATE TABLE movie(
+# Execute the SQL statement to create the tables
+tables = {
+    "actors": """
+    CREATE TABLE IF NOT EXISTS movie(
         id INT PRIMARY KEY AUTO_INCREMENT,
         title VARCHAR(45),
         year date
-    )
-""")
-cursor.execute("""
-    CREATE TABLE actors(
+    );
+""",
+    "movie": """
+    CREATE TABLE IF NOT EXISTS actors(
         id INT PRIMARY KEY AUTO_INCREMENT,
         name VARCHAR(45),
         age INT
-    )
-""")
+    );
+"""
+}
+
+# Create tables
+created_count = 0
+
+for table_name, create_query in tables.items():
+    cursor.execute(create_query)
+    created_count += 1
 
 # Commit the changes
 conn.commit()
 
-print("table created successfully")
+print(f"{created_count} tables created successfully")
 
 # Close the connection
 cursor.close()

delete.py → delete_table.py

@@ -1,6 +1,13 @@
+from dotenv import load_dotenv
+import os
 import mysql.connector
 from mysql.connector import Error
 
+load_dotenv()
+
+db_user = os.getenv("DB_USER")
+db_password = os.getenv("DB_PASSWORD")
+
 def delete_book(book_id):
     """Delete a movie from the movies table by ID."""
 
@@ -12,8 +19,8 @@ def delete_book(book_id):
         with mysql.connector.connect(
             host="localhost",
             database="movies",
-            user="root",
-            password=" " # Add your password
+            user=db_user,
+            password=db_password
         ) as conn:
             with conn.cursor() as cursor:
                 cursor.execute(query, data)

insert_table.py

@@ -1,11 +1,18 @@
+from dotenv import load_dotenv
+import os
 import mysql.connector
 
+load_dotenv()
+
+db_user = os.getenv("DB_USER")
+db_password = os.getenv("DB_PASSWORD")
+
 # Connect to MySQL Server
 conn = mysql.connector.connect(
     host="localhost",
     database="movies",
-    user="root",
-    password=" "  # Add your password
+    user=db_user,
+    password=db_password
 )
 
 def insert_books(book_list):

select.py

@@ -1,14 +1,21 @@
+from dotenv import load_dotenv
+import os
 import mysql.connector
 
+load_dotenv()
+
+db_user = os.getenv("DB_USER")
+db_password = os.getenv("DB_PASSWORD")
+
 def query_table():
     """Fetches and displays all records from the movies table."""
     try:
         # Connect to MySQL Server
         conn = mysql.connector.connect(
             host="localhost",
             database="movies",
-            user="root",
-            password=" " # Add Password
+            user=db_user,
+            password=db_password
         )
         cursor = conn.cursor()
 

update_table.py

@@ -1,6 +1,13 @@
+from dotenv import load_dotenv
+import os
 import mysql.connector
 from mysql.connector import Error
 
+load_dotenv()
+
+db_user = os.getenv("DB_USER")
+db_password = os.getenv("DB_PASSWORD")
+
 def update_movie(movie_id, new_name):
     """Update the movie title in the movie table."""
 
@@ -15,8 +22,8 @@ def update_movie(movie_id, new_name):
         with mysql.connector.connect(
             host="localhost",
             database="movies",
-            user="root",
-            password=" " #Add password
+            user=db_user,
+            password=db_password
         ) as conn:
             with conn.cursor() as cursor:
                 cursor.execute(query, data)