v1.0.155: VM PostgreSQL + modular db/ & services/ — Lucee stays SPA shell only

deploy/db/connection.py

@@ -0,0 +1,70 @@
+"""Database connection — psycopg2 connection pool."""
+import os
+import psycopg2
+import psycopg2.pool
+import psycopg2.extras
+
+_pool = None
+
+DB_CONFIG = {
+    "host": os.getenv("DB_HOST", "127.0.0.1"),
+    "port": int(os.getenv("DB_PORT", "5432")),
+    "dbname": os.getenv("DB_NAME", "baza"),
+    "user": os.getenv("DB_USER", "super"),
+    "password": os.getenv("DB_PASS", ""),
+}
+
+
+def get_pool():
+    global _pool
+    if _pool is None:
+        _pool = psycopg2.pool.ThreadedConnectionPool(
+            minconn=1, maxconn=10, **DB_CONFIG
+        )
+    return _pool
+
+
+def query(sql, params=None):
+    """SELECT → list of dicts (lowercase keys)."""
+    pool = get_pool()
+    conn = pool.getconn()
+    try:
+        with conn.cursor(cursor_factory=psycopg2.extras.RealDictCursor) as cur:
+            cur.execute(sql, params)
+            rows = cur.fetchall()
+            return [{k.lower(): v for k, v in r.items()} for r in rows]
+    finally:
+        pool.putconn(conn)
+
+
+def execute(sql, params=None):
+    """INSERT/UPDATE/DELETE → rowcount."""
+    pool = get_pool()
+    conn = pool.getconn()
+    try:
+        with conn.cursor() as cur:
+            cur.execute(sql, params)
+            conn.commit()
+            return cur.rowcount
+    except Exception:
+        conn.rollback()
+        raise
+    finally:
+        pool.putconn(conn)
+
+
+def execute_returning(sql, params=None):
+    """INSERT/UPDATE/DELETE with RETURNING → first row dict."""
+    pool = get_pool()
+    conn = pool.getconn()
+    try:
+        with conn.cursor(cursor_factory=psycopg2.extras.RealDictCursor) as cur:
+            cur.execute(sql, params)
+            conn.commit()
+            row = cur.fetchone()
+            return {k.lower(): v for k, v in row.items()} if row else None
+    except Exception:
+        conn.rollback()
+        raise
+    finally:
+        pool.putconn(conn)