recreate project

generate_migrations_from_sql.php

@@ -0,0 +1,128 @@
+<?php
+
+// Configuration
+$sqlFile = __DIR__ . '/schema.sql';
+$migrationPath = __DIR__ . '/app/Database/Migrations/';
+
+if (!file_exists($sqlFile)) {
+    die("❌ SQL file not found at $sqlFile\n");
+}
+
+$sql = file_get_contents($sqlFile);
+
+// Match CREATE TABLE statements
+preg_match_all('/CREATE TABLE\s+(?:IF NOT EXISTS\s+)?`?(\w+)`?\s*\((.*?)\)\s*(?:ENGINE|CHARSET|;)/is', $sql, $matches, PREG_SET_ORDER);
+
+echo "Found " . count($matches) . " table(s).\n";
+
+foreach ($matches as $match) {
+    $tableName = $match[1];
+    $columnsSql = trim($match[2]);
+
+    $className = 'Create' . ucfirst(camelCase($tableName)) . 'Table';
+    $timestamp = date('YmdHis');
+    $filename = $timestamp . '_create_' . strtolower($tableName) . '_table.php';
+    sleep(1); // Avoid filename collisions
+
+    $columnsArray = parseColumns($columnsSql);
+    $fieldDefs = array_map(
+        fn($name, $def) => is_numeric($name)
+            ? "            $def,"
+            : "            '$name' => $def,",
+        array_keys($columnsArray),
+        $columnsArray
+    );
+    $fieldDefsText = implode("\n", $fieldDefs);
+
+    $migrationContent = <<<PHP
+<?php
+
+namespace App\Database\Migrations;
+
+use CodeIgniter\Database\Migration;
+
+class $className extends Migration
+{
+    public function up()
+    {
+        \$this->forge->addField([
+$fieldDefsText
+        ]);
+        \$this->forge->addKey('id', true); // Adjust if needed
+        \$this->forge->createTable('$tableName');
+    }
+
+    public function down()
+    {
+        \$this->forge->dropTable('$tableName');
+    }
+}
+PHP;
+
+    file_put_contents($migrationPath . $filename, $migrationContent);
+    echo "✅ Created migration for `$tableName`: $filename\n";
+}
+
+function parseColumns(string $columnsSql): array
+{
+    $lines = preg_split('/,\n|\n/', $columnsSql);
+    $result = [];
+
+    foreach ($lines as $line) {
+        $line = trim($line);
+
+        // Skip keys, constraints
+        if (preg_match('/^(PRIMARY|UNIQUE|KEY|CONSTRAINT|FOREIGN)/i', $line)) {
+            continue;
+        }
+
+        // Handle ENUM as raw SQL
+        if (preg_match("/^`(\w+)`\s+enum\((.*?)\)(.*)/i", $line, $enumMatch)) {
+            $name = $enumMatch[1];
+            $values = $enumMatch[2];
+            $rest = $enumMatch[3];
+
+            // Wrap the whole ENUM in double quotes, and escape single quotes
+            $enumSQL = '"' . "$name ENUM($values)$rest" . '"';
+            $enumSQL = str_replace("`", "", $enumSQL);
+            $result[] = $enumSQL;
+            continue;
+        }
+
+
+        if (preg_match('/^`(\w+)`\s+([a-zA-Z]+)(\(([^)]+)\))?/i', $line, $col)) {
+            $field = $col[1];
+            $type = strtoupper($col[2]);
+            $length = $col[4] ?? null;
+
+            $definition = [];
+            $definition[] = "'type' => '$type'";
+
+            if ($length && !in_array($type, ['TEXT', 'DATE', 'DATETIME', 'TIMESTAMP'])) {
+                $definition[] = "'constraint' => $length";
+            }
+
+            $definition[] = stripos($line, 'NOT NULL') !== false ? "'null' => false" : "'null' => true";
+
+            if (stripos($line, 'AUTO_INCREMENT') !== false) {
+                $definition[] = "'auto_increment' => true";
+            }
+
+            if (preg_match('/DEFAULT\s+([^\s,]+)/i', $line, $defMatch)) {
+                $default = trim($defMatch[1], "'\"");
+                if (strtoupper($default) !== 'NULL') {
+                    $definition[] = "'default' => '$default'";
+                }
+            }
+
+            $result[$field] = '[' . implode(', ', $definition) . ']';
+        }
+    }
+
+    return $result;
+}
+
+function camelCase(string $str): string
+{
+    return str_replace(' ', '', ucwords(str_replace(['-', '_'], ' ', $str)));
+}