Ahmed

.vscode/settings.json

@@ -1,5 +1,7 @@
 {
     "files.associations": {
-        "table.h": "c"
+        "table.h": "c",
+        "secondary_index.h": "c",
+        "input_handling.h": "c"
     }
 }

Readme.md

@@ -229,6 +229,22 @@ Upon running the application, you'll enter an interactive shell where you can ex
   DELETE FROM students WHERE id = 1
   ```
 
+### Transaction Commands
+
+Transactions ensure that database operations are atomic, consistent, isolated, and durable (ACID). 
+
+- **Enable Transactions:**
+
+- **Begin a Transaction:**
+
+- **Commit a Transaction:**
+
+- **Rollback a Transaction:**
+
+- **View Transaction Status:**
+
+- **Disable Transactions:**
+
 ### Meta-Commands
 
 - **Exit the Application:**

flask-database-app/app.py

@@ -0,0 +1,130 @@
+from flask import Flask, render_template, request, redirect, url_for, flash, jsonify
+import subprocess
+import json
+import os
+from db_connector import DatabaseConnector
+
+app = Flask(__name__)
+app.config['SECRET_KEY'] = 'your_secret_key_here'
+
+# Get the absolute path to the root of your project
+project_root = os.path.dirname(os.path.abspath(__file__))
+db_root = os.path.dirname(project_root)  # Parent directory of flask-database-app
+
+# Initialize database connector
+db = DatabaseConnector(db_root)
+
+@app.route('/')
+def index():
+    """Main dashboard showing database statistics"""
+    tables = db.get_tables()
+    table_stats = {}
+    for table in tables:
+        count = len(db.get_records(table))
+        table_stats[table] = count
+
+    return render_template('index.html', tables=tables, table_stats=table_stats)
+
+# User routes
+@app.route('/users')
+def list_users():
+    """List all users"""
+    users = db.get_records('users')
+    return render_template('users/list.html', users=users)
+
+@app.route('/users/<int:user_id>')
+def view_user(user_id):
+    """View user details"""
+    user = db.get_record_by_id('users', user_id)
+    if not user:
+        flash('User not found', 'error')
+        return redirect(url_for('list_users'))
+
+    return render_template('users/view.html', user=user)
+
+@app.route('/users/create', methods=['GET', 'POST'])
+def create_user():
+    """Create a new user"""
+    if request.method == 'POST':
+        # Get the next available ID
+        next_id = db.get_next_id('users')
+
+        # Collect form data
+        user_data = {
+            'id': next_id,
+            'name': request.form['name'],
+            'email': request.form['email']
+        }
+
+        # Validate data
+        errors = []
+        if not user_data['name']:
+            errors.append('Name is required')
+        if not user_data['email']:
+            errors.append('Email is required')
+
+        if errors:
+            for error in errors:
+                flash(error, 'error')
+            return render_template('users/create.html', user=user_data)
+
+        # Insert user
+        if db.insert_record('users', user_data):
+            flash('User created successfully!', 'success')
+            return redirect(url_for('list_users'))
+        else:
+            flash('Failed to create user', 'error')
+            return render_template('users/create.html', user=user_data)
+
+    return render_template('users/create.html', user={})
+
+@app.route('/users/<int:user_id>/edit', methods=['GET', 'POST'])
+def edit_user(user_id):
+    """Edit an existing user"""
+    user = db.get_record_by_id('users', user_id)
+    if not user:
+        flash('User not found', 'error')
+        return redirect(url_for('list_users'))
+
+    if request.method == 'POST':
+        # Collect form data
+        user_data = {
+            'id': user_id,
+            'name': request.form['name'],
+            'email': request.form['email']
+        }
+
+        # Validate data
+        errors = []
+        if not user_data['name']:
+            errors.append('Name is required')
+        if not user_data['email']:
+            errors.append('Email is required')
+
+        if errors:
+            for error in errors:
+                flash(error, 'error')
+            return render_template('users/edit.html', user=user_data)
+
+        # Update user
+        if db.update_record('users', user_id, user_data):
+            flash('User updated successfully!', 'success')
+            return redirect(url_for('view_user', user_id=user_id))
+        else:
+            flash('Failed to update user', 'error')
+            return render_template('users/edit.html', user=user_data)
+
+    return render_template('users/edit.html', user=user)
+
+@app.route('/users/<int:user_id>/delete', methods=['POST'])
+def delete_user(user_id):
+    """Delete a user"""
+    if db.delete_record('users', user_id):
+        flash('User deleted successfully!', 'success')
+    else:
+        flash('Failed to delete user', 'error')
+
+    return redirect(url_for('list_users'))
+
+if __name__ == '__main__':
+    app.run(debug=True)

flask-database-app/config.py

@@ -0,0 +1,16 @@
+import os
+
+class Config:
+    """Configuration settings"""
+    # Secret key for session management
+    SECRET_KEY = os.environ.get('SECRET_KEY') or 'dev-key-change-in-production'
+
+    # Path to the database directory
+    DATABASE_PATH = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+    # Database binary location
+    DB_BINARY = os.path.join(DATABASE_PATH, 'bin', 'db-project')
+
+    # Database and table names
+    DATABASE_NAME = 'myusers'
+    USERS_TABLE = 'users'

flask-database-app/data_cache.json

@@ -0,0 +1,94 @@
+{
+    "databases": [
+        "school",
+        "company"
+    ],
+    "tables": {
+        "users": {
+            "database": "company",
+            "columns": [
+                {
+                    "name": "id",
+                    "type": "INT"
+                },
+                {
+                    "name": "name",
+                    "type": "STRING"
+                },
+                {
+                    "name": "email",
+                    "type": "STRING"
+                }
+            ]
+        },
+        "students": {
+            "database": "school",
+            "columns": [
+                {
+                    "name": "id",
+                    "type": "INT"
+                },
+                {
+                    "name": "name",
+                    "type": "STRING"
+                },
+                {
+                    "name": "father_name",
+                    "type": "STRING"
+                },
+                {
+                    "name": "gpa",
+                    "type": "FLOAT"
+                },
+                {
+                    "name": "age",
+                    "type": "INT"
+                },
+                {
+                    "name": "gender",
+                    "type": "STRING"
+                }
+            ]
+        }
+    },
+    "records": {
+        "users": [
+            {
+                "id": 2,
+                "name": "Jane Smith",
+                "email": "jane@example.com"
+            },
+            {
+                "id": 12,
+                "name": "M Ahmed Butt",
+                "email": "admin@kurras.com"
+            }
+        ],
+        "students": [
+            {
+                "id": 1,
+                "name": "John Doe",
+                "father_name": "Richard Roe",
+                "gpa": 3.5,
+                "age": 20,
+                "gender": "M"
+            },
+            {
+                "id": 2,
+                "name": "Jane Smith",
+                "father_name": "John Smith",
+                "gpa": 3.8,
+                "age": 22,
+                "gender": "F"
+            },
+            {
+                "id": 3,
+                "name": "Alice Johnson",
+                "father_name": "Robert Johnson",
+                "gpa": 3.2,
+                "age": 19,
+                "gender": "F"
+            }
+        ]
+    }
+}