fix: add a script for fixing schema (public) of plugin's objects (#299)

this script allows to set the plugin's schema (instead of "public") to the database objects created before v2.2 (postgresql v16)... it aims to avoid errors caused by using the "public" schema....<hr>This is an automatic backport of pull request #298 done by [Mergify](https://mergify.com).

adm/_fix_plugin_schema.py

@@ -0,0 +1,50 @@
+#!/usr/bin/env python3
+
+import os
+import psycopg2
+import argparse
+
+USERNAME = os.environ["MFBASE_POSTGRESQL_USERNAME"]
+PASSWORD = os.environ["MFBASE_POSTGRESQL_PASSWORD"]
+HOST = "localhost"
+PORT = int(os.environ["MFBASE_POSTGRESQL_PORT"])
+TIMEOUT = 30
+DESCRIPTION = "fix plugin database objects schema. " \
+              "from 'public' to plugin's schema"
+
+parser = argparse.ArgumentParser(description=DESCRIPTION)
+parser.add_argument("plugin_dbname", help="plugin dbname")
+parser.add_argument("plugin_user", help="plugin user")
+args = parser.parse_args()
+
+dbname = args.plugin_dbname
+conn = psycopg2.connect(host=HOST, port=PORT, user=USERNAME, dbname=dbname,
+                        password=PASSWORD, connect_timeout=TIMEOUT)
+conn.autocommit = True
+cur = conn.cursor()
+
+# TABLES
+sql1 = "SELECT tablename FROM pg_tables WHERE schemaname='public' " \
+    "AND tablename <> 'spatial_ref_sys'"
+cur.execute(sql1)
+for table in cur.fetchall():
+    sql2 = "ALTER TABLE public.%s SET SCHEMA %s" % (table[0], args.plugin_user)
+    print(sql2)
+    cur.execute(sql2)
+
+# SEQUENCES
+sql3 = "SELECT sequencename FROM pg_sequences WHERE schemaname='public'"
+cur.execute(sql3)
+for sequence in cur.fetchall():
+    sql4 = "ALTER SEQUENCE public.%s SET SCHEMA %s" % (sequence[0], args.plugin_user)
+    print(sql4)
+    cur.execute(sql4)
+
+# INDEXES
+sql5 = "SELECT indexname FROM pg_indexes WHERE schemaname='public' " \
+    "AND tablename <> 'spatial_ref_sys'"
+cur.execute(sql5)
+for index in cur.fetchall():
+    sql6 = "ALTER INDEX public.%s SET SCHEMA %s" % (index[0], args.plugin_user)
+    print(sql6)
+    cur.execute(sql6)