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add helper function for execute_values

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Make psycopg2's convenience function accessible through
the cursor.
This commit is contained in:
Sarah Hoffmann
2021-07-12 21:08:20 +02:00
parent 06602b4ec0
commit 6f6681ce67
5 changed files with 32 additions and 27 deletions
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10
nominatim/db/connection.py
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@@ -26,6 +26,16 @@ class _Cursor(psycopg2.extras.DictCursor):
super().execute(query, args)
def execute_values(self, sql, argslist, template=None):
""" Wrapper for the psycopg2 convenience function to execute
SQL for a list of values.
"""
LOG.debug("SQL execute_values(%s, %s)", sql, argslist)
psycopg2.extras.execute_values(self, sql, argslist, template=template)
def scalar(self, sql, args=None):
""" Execute query that returns a single value. The value is returned.
If the query yields more than one row, a ValueError is raised.