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Fixed regex lookup on Oracle 

Refs #21821
This commit is contained in:
Anssi Kääriäinen 2014-01-20 04:38:46 +02:00
parent a9f1711518
commit b86321e9a4
1 changed files with 23 additions and 8 deletions
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31
django/db/models/lookups.py
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@ -120,16 +120,22 @@ class Lookup(RegisterLookupMixin):
class BuiltinLookup(Lookup):
def as_sql(self, qn, connection):
lhs_sql, params = self.process_lhs(qn, connection)
def process_lhs(self, qn, connection, lhs=None):
lhs_sql, params = super(BuiltinLookup, self).process_lhs(
qn, connection, lhs)
field_internal_type = self.lhs.output_type.get_internal_type()
db_type = self.lhs.output_type.db_type(connection=connection)
lhs_sql = connection.ops.field_cast_sql(db_type, field_internal_type) % lhs_sql
lhs_sql = connection.ops.field_cast_sql(
db_type, field_internal_type) % lhs_sql
lhs_sql = connection.ops.lookup_cast(self.lookup_name) % lhs_sql
return lhs_sql, params
def as_sql(self, qn, connection):
lhs_sql, params = self.process_lhs(qn, connection)
rhs_sql, rhs_params = self.process_rhs(qn, connection)
params.extend(rhs_params)
operator_plus_rhs = self.get_rhs_op(connection, rhs_sql)
return '%s %s' % (lhs_sql, operator_plus_rhs), params
rhs_sql = self.get_rhs_op(connection, rhs_sql)
return '%s %s' % (lhs_sql, rhs_sql), params
def get_rhs_op(self, connection, rhs):
return connection.operators[self.lookup_name] % rhs
@ -276,8 +282,8 @@ default_lookups['range'] = Range
class DateLookup(BuiltinLookup):
def process_lhs(self, qn, connection):
lhs, params = super(DateLookup, self).process_lhs(qn, connection)
def process_lhs(self, qn, connection, lhs=None):
lhs, params = super(DateLookup, self).process_lhs(qn, connection, lhs)
tzname = timezone.get_current_timezone_name() if settings.USE_TZ else None
sql, tz_params = connection.ops.datetime_extract_sql(self.extract_type, lhs, tzname)
return connection.ops.lookup_cast(self.lookup_name) % sql, tz_params
@ -341,9 +347,18 @@ default_lookups['search'] = Search
class Regex(BuiltinLookup):
lookup_name = 'regex'
def as_sql(self, qn, connection):
if self.lookup_name in connection.operators:
return super(Regex, self).as_sql(qn, connection)
else:
lhs, lhs_params = self.process_lhs(qn, connection)
rhs, rhs_params = self.process_rhs(qn, connection)
sql_template = connection.ops.regex_lookup(self.lookup_name)
return sql_template % (lhs, rhs), lhs_params + rhs_params
default_lookups['regex'] = Regex
class IRegex(BuiltinLookup):
class IRegex(Regex):
lookup_name = 'iregex'
default_lookups['iregex'] = IRegex