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Made some date parsing in SQLite functions more DRY.

This commit is contained in:
Nick Pope 2018-08-29 21:31:41 +01:00 committed by Tim Graham
parent c49ea6f591
commit af7a758dcb
1 changed files with 13 additions and 17 deletions
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30
django/db/backends/sqlite3/base.py
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@ -325,12 +325,21 @@ class SQLiteCursorWrapper(Database.Cursor):
return FORMAT_QMARK_REGEX.sub('?', query).replace('%%', '%')
def _sqlite_date_extract(lookup_type, dt):
def _sqlite_datetime_parse(dt, tzname=None):
if dt is None:
return None
try:
dt = backend_utils.typecast_timestamp(dt)
except (ValueError, TypeError):
except (TypeError, ValueError):
return None
if tzname is not None:
dt = timezone.localtime(dt, pytz.timezone(tzname))
return dt
def _sqlite_date_extract(lookup_type, dt):
dt = _sqlite_datetime_parse(dt)
if dt is None:
return None
if lookup_type == 'week_day':
return (dt.isoweekday() % 7) + 1
@ -345,9 +354,8 @@ def _sqlite_date_extract(lookup_type, dt):
def _sqlite_date_trunc(lookup_type, dt):
try:
dt = backend_utils.typecast_timestamp(dt)
except (ValueError, TypeError):
dt = _sqlite_datetime_parse(dt)
if dt is None:
return None
if lookup_type == 'year':
return "%i-01-01" % dt.year
@ -376,18 +384,6 @@ def _sqlite_time_trunc(lookup_type, dt):
return "%02i:%02i:%02i" % (dt.hour, dt.minute, dt.second)
def _sqlite_datetime_parse(dt, tzname):
if dt is None:
return None
try:
dt = backend_utils.typecast_timestamp(dt)
except (ValueError, TypeError):
return None
if tzname is not None:
dt = timezone.localtime(dt, pytz.timezone(tzname))
return dt
def _sqlite_datetime_cast_date(dt, tzname):
dt = _sqlite_datetime_parse(dt, tzname)
if dt is None: