Last step of refactoring before adding support for > 1000 entities.
Make helper functions. One extracts list parameters.
One creates links more simply. This is cleaning up the large
function body so I can move stuff around more radically.
Patch by: Dan Bentley
"""
Extracts the version of the PostgreSQL server.
"""
import re
VERSION_RE = re.compile(r'PostgreSQL (\d+)\.(\d+)\.')
def get_version(cursor):
"""
Returns a tuple representing the major and minor version number of the
server. For example, (7, 4) or (8, 3).
"""
cursor.execute("SELECT version()")
version = cursor.fetchone()[0]
major, minor = VERSION_RE.search(version).groups()
return int(major), int(minor)