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authorAymeric Augustin <aymeric.augustin@m4x.org>2014-05-07 21:50:09 +0200
committerAymeric Augustin <aymeric.augustin@m4x.org>2014-05-08 22:11:15 +0200
commitc70a61eb49e4ed8f3b2a5011a7a5e6cda43c8598 (patch)
treee59c24f409be666c224f986ce21c423d4ee0b2fe /django/db
parent43a80f4812a762c2ea96b3de45662ace04404287 (diff)
Replaced vendor checks by three feature flags.
Diffstat (limited to 'django/db')
-rw-r--r--django/db/backends/__init__.py6
-rw-r--r--django/db/backends/mysql/base.py2
-rw-r--r--django/db/backends/oracle/base.py2
3 files changed, 10 insertions, 0 deletions
diff --git a/django/db/backends/__init__.py b/django/db/backends/__init__.py
index e9d644e506..a9bf3ea9cb 100644
--- a/django/db/backends/__init__.py
+++ b/django/db/backends/__init__.py
@@ -481,6 +481,7 @@ class BaseDatabaseFeatures(object):
can_return_id_from_insert = False
has_bulk_insert = False
uses_savepoints = False
+ can_release_savepoints = True
can_combine_inserts_with_and_without_auto_increment_pk = False
# If True, don't use integer foreign keys referring to, e.g., positive
@@ -512,6 +513,8 @@ class BaseDatabaseFeatures(object):
supports_subqueries_in_group_by = True
supports_bitwise_or = True
+ supports_binary_field = True
+
# Do time/datetime fields have microsecond precision?
supports_microsecond_precision = True
@@ -605,6 +608,9 @@ class BaseDatabaseFeatures(object):
# statements before executing them?
requires_sqlparse_for_splitting = True
+ # Suffix for backends that don't support "SELECT xxx;" queries.
+ bare_select_suffix = ''
+
def __init__(self, connection):
self.connection = connection
diff --git a/django/db/backends/mysql/base.py b/django/db/backends/mysql/base.py
index 85bcd8f79b..70d9a29d56 100644
--- a/django/db/backends/mysql/base.py
+++ b/django/db/backends/mysql/base.py
@@ -172,6 +172,8 @@ class DatabaseFeatures(BaseDatabaseFeatures):
has_select_for_update_nowait = False
supports_forward_references = False
supports_long_model_names = False
+ # XXX MySQL DB-API drivers currently fail on binary data on Python 3.
+ supports_binary_field = six.PY2
supports_microsecond_precision = False
supports_regex_backreferencing = False
supports_date_lookup_using_string = False
diff --git a/django/db/backends/oracle/base.py b/django/db/backends/oracle/base.py
index 1a4ff172e8..e46b4f2db8 100644
--- a/django/db/backends/oracle/base.py
+++ b/django/db/backends/oracle/base.py
@@ -96,6 +96,7 @@ class DatabaseFeatures(BaseDatabaseFeatures):
needs_datetime_string_cast = False
interprets_empty_strings_as_nulls = True
uses_savepoints = True
+ can_release_savepoints = False
has_select_for_update = True
has_select_for_update_nowait = True
can_return_id_from_insert = True
@@ -116,6 +117,7 @@ class DatabaseFeatures(BaseDatabaseFeatures):
requires_literal_defaults = True
connection_persists_old_columns = True
closed_cursor_error_class = InterfaceError
+ bare_select_suffix = " FROM DUAL"
class DatabaseOperations(BaseDatabaseOperations):