adding some common stuff, less code replica

1 files changed, 28 insertions, 0 deletions

diff --git a/common/postgres.py b/common/postgres.py
new file mode 100644
index 0000000..bff0720
--- /dev/null
+++ b/common/postgres.py
@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+''' common functions and stuff '''
+
+import os
+import sys
+import psycopg
+
+pg_db = os.environ['el_pg_db']
+pg_host = os.environ['el_pg_host']
+pg_user = os.environ.get('el_pg_user','')
+pg_pass = os.environ.get('el_pg_pass','')
+
+def dbi(sql, values, **kwargs):
+    ''' insert into db '''
+    verbose = bool(kwargs['verbose']) if 'verbose' in kwargs else False
+    # pylint: disable=E1129
+    with psycopg.connect(dbname=pg_db, host=pg_host, user=pg_user, password=pg_pass) as conn:
+        cur = conn.cursor()
+        if isinstance(values, list):
+            cur.executemany(sql, values)
+        elif isinstance(values, tuple):
+            cur.execute(sql, values)
+        else:
+            print('`values` is a', type(values), 'but it needs to be tuple or list')
+            sys.exit(1)
+    if verbose is True:
+        print("Inserted and/or changed", cur.rowcount, "rows into db")
+    return True