Finished messenger

2026-01-12 10:41:05 +01:00
parent 674fabb715
commit a4d386f2c5
11 changed files with 2069 additions and 426 deletions
--- a/application/model/DatabaseModel.php
+++ b/application/model/DatabaseModel.php
@@ -0,0 +1,183 @@
+<?php
+
+/**
+ * Class DatabaseModel
+ * 
+ * Model for database operations using PDO
+ */
+class DatabaseModel
+{
+    /**
+     * Get all databases on the server
+     * @return array
+     */
+    public static function getAllDatabases()
+    {
+        $database = DatabaseFactory::getFactory()->getConnection();
+        
+        $sql = "SHOW DATABASES";
+        $query = $database->prepare($sql);
+        $query->execute();
+        
+        $databases = $query->fetchAll(PDO::FETCH_COLUMN);
+        
+        // Filter out system databases
+        $system_dbs = ['information_schema', 'performance_schema', 'mysql', 'sys'];
+        return array_diff($databases, $system_dbs);
+    }
+
+    /**
+     * Get all tables in a specific database
+     * @param string $database_name
+     * @return array
+     */
+    public static function getTablesInDatabase($database_name)
+    {
+        $database = DatabaseFactory::getFactory()->getConnection();
+        
+        $sql = "SHOW TABLES FROM " . $database_name;
+        $query = $database->prepare($sql);
+        $query->execute();
+        
+        return $query->fetchAll(PDO::FETCH_COLUMN);
+    }
+
+    /**
+     * Get detailed information about tables in a database
+     * @param string $database_name
+     * @return array
+     */
+    public static function getTableDetails($database_name)
+    {
+        $database = DatabaseFactory::getFactory()->getConnection();
+        $tables = self::getTablesInDatabase($database_name);
+        $table_details = array();
+        
+        foreach ($tables as $table) {
+            $sql = "SHOW TABLE STATUS FROM " . $database_name . " LIKE :table_name";
+            $query = $database->prepare($sql);
+            $query->execute(array(':table_name' => $table));
+            
+            $details = $query->fetch(PDO::FETCH_ASSOC);
+            if ($details) {
+                $table_details[$table] = array(
+                    'engine' => $details['Engine'],
+                    'rows' => $details['Rows'],
+                    'data_size' => self::formatBytes($details['Data_length']),
+                    'index_size' => self::formatBytes($details['Index_length']),
+                    'total_size' => self::formatBytes($details['Data_length'] + $details['Index_length']),
+                    'collation' => $details['Collation'],
+                    'comment' => $details['Comment']
+                );
+            }
+        }
+        
+        return $table_details;
+    }
+
+    /**
+     * Get complete database structure (tables and columns)
+     * @param string $database_name
+     * @return array
+     */
+    public static function getDatabaseStructure($database_name)
+    {
+        $database = DatabaseFactory::getFactory()->getConnection();
+        $structure = array();
+        $tables = self::getTablesInDatabase($database_name);
+        
+        foreach ($tables as $table) {
+            $sql = "DESCRIBE " . $database_name . "." . $table;
+            $query = $database->prepare($sql);
+            $query->execute();
+            
+            $columns = $query->fetchAll(PDO::FETCH_ASSOC);
+            $structure[$table] = $columns;
+        }
+        
+        return $structure;
+    }
+
+    /**
+     * Create a new database
+     * @param string $database_name
+     * @return bool
+     */
+    public static function createDatabase($database_name)
+    {
+        if (!$database_name || !preg_match('/^[a-zA-Z0-9_]+$/', $database_name)) {
+            return false;
+        }
+
+        $database = DatabaseFactory::getFactory()->getConnection();
+        
+        try {
+            $sql = "CREATE DATABASE `" . $database_name . "` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci";
+            $query = $database->prepare($sql);
+            return $query->execute();
+        } catch (PDOException $e) {
+            return false;
+        }
+    }
+
+    /**
+     * Delete a database
+     * @param string $database_name
+     * @return bool
+     */
+    public static function deleteDatabase($database_name)
+    {
+        if (!$database_name) {
+            return false;
+        }
+
+        $database = DatabaseFactory::getFactory()->getConnection();
+        
+        try {
+            $sql = "DROP DATABASE `" . $database_name . "`";
+            $query = $database->prepare($sql);
+            return $query->execute();
+        } catch (PDOException $e) {
+            return false;
+        }
+    }
+
+    /**
+     * Get table columns with details
+     * @param string $database_name
+     * @param string $table_name
+     * @return array
+     */
+    public static function getTableColumns($database_name, $table_name)
+    {
+        $database = DatabaseFactory::getFactory()->getConnection();
+        
+        $sql = "SHOW COLUMNS FROM " . $database_name . "." . $table_name;
+        $query = $database->prepare($sql);
+        $query->execute();
+        
+        return $query->fetchAll(PDO::FETCH_ASSOC);
+    }
+
+    /**
+     * Format bytes to human readable format
+     * @param int $bytes
+     * @return string
+     */
+    private static function formatBytes($bytes)
+    {
+        if ($bytes >= 1073741824) {
+            return number_format($bytes / 1073741824, 2) . ' GB';
+        } elseif ($bytes >= 1048576) {
+            return number_format($bytes / 1048576, 2) . ' MB';
+        } elseif ($bytes >= 1024) {
+            return number_format($bytes / 1024, 2) . ' KB';
+        } elseif ($bytes > 1) {
+            return $bytes . ' bytes';
+        } elseif ($bytes == 1) {
+            return '1 byte';
+        } else {
+            return '0 bytes';
+        }
+    }
+}