MagicObject Version 3.22.0

CHANGELOG.md

@@ -1482,3 +1482,22 @@ The powerful `retrieve()` method, which allows for easy access to nested propert
 ```php
 $secretConfig->retrieve('database', 'credentials', 'username');
 ```
+
+# MagicObject Version 3.22.0
+
+## What's New
+
+1. **UUID Generator**
+   Added a native UUID generator that produces standards-compliant UUID values, suitable for distributed systems and cross-database compatibility.
+
+2. **Time-Based ID Generator**
+   Introduced a time-based ID generator that creates sortable, time-ordered identifiers, improving indexing performance and data traceability.
+
+## What's Changed
+
+1. **Default Primary Key Generation**
+   The default primary key generation strategy for `VARCHAR` columns has been changed to use the **time-based ID generator**, replacing the previous approach.
+
+2. **Improved UUID Implementation**
+   Replaced the legacy unique ID generation based on PHP’s `uniqid()` function with a **real UUID implementation**, ensuring better uniqueness guarantees and compliance with UUID standards.
+

src/Database/PicoDatabase.php

@@ -1257,6 +1257,66 @@ public function generateNewId()
         return sprintf('%s%s', $uuid, $random);
     }
 
+    /**
+     * Generate a random UUID (Universally Unique Identifier) version 4.
+     *
+     * This function creates a 128-bit UUID using random bytes and applies
+     * the proper version (4) and variant (RFC 4122) bits. The result is
+     * formatted as a canonical string representation:
+     *     xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+     *
+     * Example output:
+     *     ad271d69-6c5a-4002-b2d2-3e0f84f7dfa3
+     *
+     * @return string A UUID v4 string in standard format.
+     */
+    public function generateUUID() {
+        // Generate 16 bytes (128 bit) random data
+        $data = random_bytes(16);
+
+        // Set versi ke 0100 (UUID v4)
+        $data[6] = chr((ord($data[6]) & 0x0f) | 0x40);
+        // Set variant ke 10xxxxxx
+        $data[8] = chr((ord($data[8]) & 0x3f) | 0x80);
+
+        // Format ke string UUID
+        return vsprintf('%s%s-%s-%s-%s-%s%s%s', str_split(bin2hex($data), 4));
+    }
+
+    /**
+     * Generates a unique hexadecimal ID based on the current epoch time in nanoseconds
+     * combined with a 3-hex-digit random suffix.
+     *
+     * The ID consists of:
+     * - A 17-character hexadecimal timestamp derived from microtime()
+     * - A 3-character hexadecimal random value
+     *
+     * @return string Unique hexadecimal identifier
+     */
+    public function generateTimeBasedId()
+    {
+        // Get microtime as "microseconds seconds"
+        $microtimeParts = explode(' ', microtime());
+
+        // Format microseconds to 9 decimal places
+        $microsecondsFormatted = sprintf('%11.9f', $microtimeParts[0]);
+
+        // Split seconds and fractional microseconds
+        $microsecondsParts = explode('.', $microsecondsFormatted);
+
+        // Combine seconds and fractional part into a nanosecond-like integer string
+        $epochNanoString = sprintf('%d%+9s', $microtimeParts[1], $microsecondsParts[1]);
+
+        // Convert the timestamp to a fixed-length hexadecimal string
+        $timestampHex = sprintf('%017x', (int) $epochNanoString);
+
+        // Generate a 3-hex-digit random value
+        $randomHex = sprintf('%03x', mt_rand(0, 0xFFF));
+
+        // Concatenate timestamp and random suffix
+        return $timestampHex . $randomHex;
+    }
+
     /**
      * Get the last inserted ID.
      *

src/Database/PicoDatabasePersistence.php

@@ -1143,6 +1143,15 @@ private function setGeneratedValue($prop, $strategy, $firstCall)
                 $this->generatedValue = true;
             }
         }
+        else if(stripos($strategy, "TIMEBASED") !== false)
+        {
+            if($firstCall && ($this->object->get($prop) == null || $this->object->get($prop) == "") && !$this->generatedValue)
+            {
+                $generatedValue = $this->database->generateTimeBasedId();
+                $this->object->set($prop, $generatedValue);
+                $this->generatedValue = true;
+            }
+        }
         else if(stripos($strategy, "IDENTITY") !== false)
         {
             if($firstCall)

src/Generator/PicoEntityGenerator.php

@@ -125,7 +125,7 @@ public function createProperty($typeMap, $columnMap, $row, $nonupdatables = null
         if (!empty($columnKey) && stripos($columnKey, "PRI") === 0) {
             $docs[] = "\t * @Id";
             if (stripos($columnExtra, "auto_increment") === false) {
-                $docs[] = "\t * @GeneratedValue(strategy=GenerationType.UUID)";
+                $docs[] = "\t * @GeneratedValue(strategy=GenerationType.TIMEBASED)";
             }
         }