88 lines
2.4 KiB
Python
88 lines
2.4 KiB
Python
import re
|
|
from .._gae import gae
|
|
from ..helpers._internals import Dispatcher
|
|
from ..helpers.regex import REGEX_NO_GREEDY_ENTITY_NAME
|
|
|
|
|
|
class Adapters(Dispatcher):
|
|
def register_for(self, *uris):
|
|
def wrap(dispatch_class):
|
|
for uri in uris:
|
|
self._registry_[uri] = dispatch_class
|
|
return dispatch_class
|
|
return wrap
|
|
|
|
def get_for(self, uri):
|
|
try:
|
|
return self._registry_[uri]
|
|
except KeyError:
|
|
raise SyntaxError(
|
|
'Adapter not found for %s' % uri
|
|
)
|
|
|
|
adapters = Adapters('adapters')
|
|
|
|
|
|
class AdapterMeta(type):
|
|
"""Metaclass to support manipulation of adapter classes.
|
|
|
|
At the moment is used to intercept `entity_quoting` argument passed to DAL.
|
|
"""
|
|
def __call__(cls, *args, **kwargs):
|
|
uploads_in_blob = kwargs.get('adapter_args', {}).get(
|
|
'uploads_in_blob', cls.uploads_in_blob)
|
|
cls.uploads_in_blob = uploads_in_blob
|
|
|
|
entity_quoting = kwargs.get('entity_quoting', True)
|
|
if 'entity_quoting' in kwargs:
|
|
del kwargs['entity_quoting']
|
|
|
|
obj = super(AdapterMeta, cls).__call__(*args, **kwargs)
|
|
if not entity_quoting:
|
|
quot = obj.dialect.quote_template = '%s'
|
|
regex_ent = r'(\w+)'
|
|
else:
|
|
quot = obj.dialect.quote_template
|
|
regex_ent = REGEX_NO_GREEDY_ENTITY_NAME
|
|
obj.REGEX_TABLE_DOT_FIELD = re.compile(
|
|
r'^' + quot % regex_ent + r'\.' + quot % regex_ent + r'$')
|
|
|
|
return obj
|
|
|
|
|
|
def with_connection(f):
|
|
def wrap(*args, **kwargs):
|
|
if args[0].connection:
|
|
return f(*args, **kwargs)
|
|
return None
|
|
return wrap
|
|
|
|
|
|
def with_connection_or_raise(f):
|
|
def wrap(*args, **kwargs):
|
|
if not args[0].connection:
|
|
if len(args) > 1:
|
|
raise ValueError(args[1])
|
|
raise RuntimeError('no connection available')
|
|
return f(*args, **kwargs)
|
|
return wrap
|
|
|
|
|
|
from .base import SQLAdapter, NoSQLAdapter
|
|
from .sqlite import SQLite
|
|
from .postgres import Postgre, PostgrePsyco, PostgrePG8000
|
|
from .mysql import MySQL
|
|
from .mssql import MSSQL
|
|
from .mongo import Mongo
|
|
from .db2 import DB2
|
|
from .firebird import FireBird
|
|
from .informix import Informix
|
|
from .ingres import Ingres
|
|
from .oracle import Oracle
|
|
from .sap import SAPDB
|
|
from .teradata import Teradata
|
|
from .couchdb import CouchDB
|
|
|
|
if gae is not None:
|
|
from .google import GoogleSQL
|