add projet

app/Models/CiDatabase.php

@@ -0,0 +1,82 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Connection;
+use Illuminate\Support\Facades\DB;
+
+class CiDatabase
+{
+    protected static ?self $instance = null;
+
+    protected Connection $connection;
+    protected int $lastAffectedRows = 0;
+
+    public static function instance(): self
+    {
+        return static::$instance ??= new static();
+    }
+
+    protected function __construct()
+    {
+        $this->connection = DB::connection();
+    }
+
+    public function table(string $table): CiQueryBuilder
+    {
+        $normalized = $this->normalizeTableName($table);
+        return new CiQueryBuilder($this->connection->table($normalized));
+    }
+
+    public function query(string $sql, array $params = []): CiQueryResult
+    {
+        $trimmed = ltrim($sql);
+        if ($trimmed === '') {
+            return new CiQueryResult([]);
+        }
+
+        $first = strtolower(strtok($trimmed, " \t\n\r\0\x0B") ?: '');
+
+        if ($first === 'select') {
+            $rows = $this->connection->select($sql, $params);
+            $this->lastAffectedRows = 0;
+            return new CiQueryResult($rows);
+        }
+
+        $affected = $this->connection->affectingStatement($sql, $params);
+        $this->lastAffectedRows = $affected;
+
+        return new CiQueryResult([]);
+    }
+
+    public function escape($value): string
+    {
+        return $this->connection->getPdo()->quote($value);
+    }
+
+    public function affectedRows(): int
+    {
+        return $this->lastAffectedRows;
+    }
+
+    public function getFieldNames(string $table): array
+    {
+        return $this->connection->getSchemaBuilder()->getColumnListing($table);
+    }
+
+    protected function normalizeTableName(string $table): string
+    {
+        $normalized = trim($table);
+
+        if (stripos($normalized, ' as ') !== false) {
+            return $normalized;
+        }
+
+        if (strpos($normalized, ' ') !== false) {
+            [$name, $alias] = preg_split('/\s+/', $normalized, 2);
+            return "{$name} as {$alias}";
+        }
+
+        return $normalized;
+    }
+}