<?php
// Include admin functions
require_once __DIR__ . '/admin_functions.php';
// Database configuration
$db_host = 'localhost';
$db_user = 'vishqocm_popularcomputer23';
$db_pass = 'popularcomputer23';
$db_name = 'vishqocm_popularcomputer23';
// Create database connection
try {
// First connect without selecting a database
$conn = new mysqli($db_host, $db_user, $db_pass);
// Check connection
if ($conn->connect_error) {
throw new Exception("Connection failed: " . $conn->connect_error);
}
// Create database if it doesn't exist
$sql = "CREATE DATABASE IF NOT EXISTS " . $db_name;
if (!$conn->query($sql)) {
throw new Exception("Error creating database: " . $conn->error);
}
// Select the database
$conn->select_db($db_name);
// Set charset to utf8mb4
$conn->set_charset("utf8mb4");
// Create necessary tables if they don't exist
$tables = [
// Users table
"CREATE TABLE IF NOT EXISTS users (
id INT AUTO_INCREMENT PRIMARY KEY,
username VARCHAR(50) NOT NULL UNIQUE,
password VARCHAR(255) NOT NULL,
email VARCHAR(100) NOT NULL UNIQUE,
first_name VARCHAR(50) NOT NULL,
last_name VARCHAR(50) NOT NULL,
phone VARCHAR(20) DEFAULT NULL,
bio TEXT DEFAULT NULL,
profile_image VARCHAR(255) DEFAULT NULL,
designation VARCHAR(255) DEFAULT NULL,
expertise TEXT DEFAULT NULL,
social_links TEXT DEFAULT NULL,
role ENUM('admin', 'instructor', 'student') NOT NULL DEFAULT 'student',
status ENUM('active', 'inactive', 'pending') NOT NULL DEFAULT 'active',
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
)",
// Categories table
"CREATE TABLE IF NOT EXISTS categories (
id INT AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(100) NOT NULL,
description TEXT,
status ENUM('active', 'inactive') NOT NULL DEFAULT 'active',
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
)",
// Courses table
"CREATE TABLE IF NOT EXISTS courses (
id INT AUTO_INCREMENT PRIMARY KEY,
title VARCHAR(255) NOT NULL,
description TEXT,
category INT,
instructor_id INT,
price DECIMAL(10,2) NOT NULL DEFAULT 0.00,
discount_price DECIMAL(10,2),
duration VARCHAR(50),
level ENUM('beginner', 'intermediate', 'advanced') NOT NULL DEFAULT 'beginner',
image VARCHAR(255),
is_featured TINYINT(1) NOT NULL DEFAULT 0,
status ENUM('active', 'inactive', 'draft') NOT NULL DEFAULT 'active',
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
FOREIGN KEY (category) REFERENCES categories(id) ON DELETE SET NULL,
FOREIGN KEY (instructor_id) REFERENCES users(id) ON DELETE SET NULL
)",
// Enrollments table
"CREATE TABLE IF NOT EXISTS enrollments (
id INT AUTO_INCREMENT PRIMARY KEY,
course_id INT NOT NULL,
user_id INT NOT NULL,
enrollment_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
status ENUM('active', 'completed', 'cancelled') DEFAULT 'active',
FOREIGN KEY (course_id) REFERENCES courses(id) ON DELETE CASCADE,
FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
)",
// Course reviews table
"CREATE TABLE IF NOT EXISTS course_reviews (
id INT AUTO_INCREMENT PRIMARY KEY,
course_id INT NOT NULL,
user_id INT NOT NULL,
rating DECIMAL(2,1) NOT NULL,
review TEXT,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
FOREIGN KEY (course_id) REFERENCES courses(id) ON DELETE CASCADE,
FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
)",
// Testimonials table
"CREATE TABLE IF NOT EXISTS testimonials (
id INT AUTO_INCREMENT PRIMARY KEY,
user_id INT NOT NULL,
content TEXT NOT NULL,
course_name VARCHAR(255),
rating INT NOT NULL DEFAULT 5,
status ENUM('pending', 'approved', 'rejected') NOT NULL DEFAULT 'pending',
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
)",
// Institute stats table
"CREATE TABLE IF NOT EXISTS institute_stats (
id INT AUTO_INCREMENT PRIMARY KEY,
total_students INT NOT NULL DEFAULT 0,
total_courses INT NOT NULL DEFAULT 0,
total_teachers INT NOT NULL DEFAULT 0,
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
)",
// Site settings table
"CREATE TABLE IF NOT EXISTS site_settings (
id INT AUTO_INCREMENT PRIMARY KEY,
setting_key VARCHAR(100) NOT NULL UNIQUE,
setting_value TEXT,
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
)"
];
// Create tables
foreach ($tables as $table_query) {
if (!$conn->query($table_query)) {
error_log("Error creating table: " . $conn->error);
}
}
// Insert default data if tables are empty
// Check if site_settings is empty
$result = $conn->query("SELECT COUNT(*) as count FROM site_settings");
if ($result && $result->fetch_assoc()['count'] == 0) {
// Insert default site settings
$default_settings = [
"INSERT INTO site_settings (setting_key, setting_value) VALUES ('site_name', 'Popular Computer Institute')",
"INSERT INTO site_settings (setting_key, setting_value) VALUES ('site_tagline', 'Computer Education Institute')",
"INSERT INTO site_settings (setting_key, setting_value) VALUES ('primary_color', '#4e73df')",
"INSERT INTO site_settings (setting_key, setting_value) VALUES ('contact_email', '[email protected]')",
"INSERT INTO site_settings (setting_key, setting_value) VALUES ('contact_phone', '+91 1234567890')"
];
foreach ($default_settings as $setting_query) {
$conn->query($setting_query);
}
}
// Check if institute_stats is empty
$result = $conn->query("SELECT COUNT(*) as count FROM institute_stats");
if ($result && $result->fetch_assoc()['count'] == 0) {
// Insert default stats
$conn->query("INSERT INTO institute_stats (total_students, total_courses, total_teachers) VALUES (100, 10, 5)");
}
// Create a function to safely run queries
if (!function_exists('safe_query')) {
function safe_query($connection, $query) {
if ($connection instanceof mysqli && !$connection->connect_error) {
return $connection->query($query);
}
return false;
}
}
} catch (Exception $e) {
// Log error but don't display it on the homepage
error_log("Database connection failed: " . $e->getMessage());
// Create a minimal mysqli connection that won't throw errors
$conn = new mysqli();
// Display repair link for admin pages
$script_name = $_SERVER['SCRIPT_NAME'] ?? '';
if (strpos($script_name, '/admin/') !== false) {
// Only show this notice once per request
echo '<div style="margin: 20px; padding: 15px; background-color: #f8d7da; border-left: 5px solid #dc3545; border-radius: 5px;">';
echo '<h4 style="color: #721c24; margin-top: 0;">Database Connection Error</h4>';
echo '<p>' . htmlspecialchars($e->getMessage()) . '</p>';
echo '<p><a href="/admin/database/db_repair.php" style="color: #721c24; text-decoration: underline; font-weight: bold;">Run the Database Repair Tool</a></p>';
echo '</div>';
}
}
// Function to check if database connection is valid
function is_database_connected() {
global $conn;
return ($conn instanceof mysqli && !$conn->connect_error);
}
