@@ -0,0 +1,65 @@
1+# SPDX-License-Identifier: AGPL-3.0-or-later
3+ PostgreSQL database (Offline)
8+engine_type = 'offline'
17+result_template = 'key-value.html'
21+def init(engine_settings):
22+ if 'query_str' not in engine_settings:
23+ raise ValueError('query_str cannot be empty')
25+ if not engine_settings['query_str'].lower().startswith('select '):
26+ raise ValueError('only SELECT query is supported')
29+ _connection = psycopg2.connect(
38+def search(query, params):
39+ query_params = {'query': query}
40+ query_to_run = query_str + ' LIMIT {0} OFFSET {1}'.format(limit, (params['pageno'] - 1) * limit)
43+ with _connection.cursor() as cur:
44+ cur.execute(query_str, query_params)
46+ return _fetch_results(cur)
49+def _fetch_results(cur):
54+ titles = [column_desc.name for column_desc in cur.description]
57+ result = dict(zip(titles, map(str, res)))
58+ result['template'] = result_template
59+ results.append(result)
61+ # no results to fetch
62+ except psycopg2.ProgrammingError: