本文整理汇总了Python中storm.info.get_cls_info函数的典型用法代码示例。如果您正苦于以下问题:Python get_cls_info函数的具体用法?Python get_cls_info怎么用?Python get_cls_info使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了get_cls_info函数的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: run_test
def run_test():
yield tables.runCreateTable(Node)
count = tables.count(Node)
self.assertEqual(count, 0)
store = config.main.zstorm.get('main_store')
nodetest = Node()
nodetest.name = u"test"
nodetest.description = u"test"
nodetest.hidden_service = u"test"
nodetest.public_site = u"test"
nodetest.email = u"[email protected]"
nodetest.private_stats_update_time = 30 # minutes
nodetest.public_stats_update_time = 120 # minutes
nodetest.languages = [ { "code" : "it" , "name": "Italiano"}, { "code" : "en" , "name" : "English" }]
store.add(nodetest)
count = tables.count(Node)
self.assertEqual(count, 1)
# select & verify
node = store.find(Node, 1 == Node.id).one()
cls_info = get_cls_info(Node)
for name in cls_info.attributes.iterkeys():
self.assertEqual(getattr(node, name, ""), getattr(nodetest, name, ""))
示例2: _load_object
def _load_object(self, cls_info, result, values):
"""Create an object from values loaded from the database.
@param cls_info: The C{ClassInfo} for the row being loaded.
@param result: The database result set.
@param values: The database values.
@return: A new instances of the class mapped to the table being
loaded.
"""
if not any(values):
# We've got a row full of NULLs, so consider that the object
# wasn't found. This is useful for joins, where non-existent rows
# are represented like that.
return None
# Build a new instance. We need the cls_info columns for the class of
# the actual object, not from a possible wrapper (e.g. an alias).
cls = cls_info.cls
cls_info = get_cls_info(cls)
index = {}
for attributeName, propertyColumn in cls_info.attributes.iteritems():
index[propertyColumn.name] = attributeName
# Build a new instance and populate it with values from the database.
obj = cls.__new__(cls)
for column, value in zip(cls_info.columns, values):
variable = column.variable_factory(value=value, from_db=True)
attributeName = index[column.name]
setattr(obj, attributeName, variable.get())
return obj
示例3: determine_table_and_fragment
def determine_table_and_fragment(table, ftq):
table = get_cls_info(table).table
if ftq:
query_fragment = "ftq(?)"
else:
query_fragment = "?::tsquery"
return table, query_fragment
示例4: __init__
def __init__(self, local_key, remote_key, many, on_remote):
assert type(local_key) is tuple and type(remote_key) is tuple
self.local_key = local_key
self.remote_key = remote_key
self.local_cls = getattr(self.local_key[0], "cls", None)
self.remote_cls = self.remote_key[0].cls
self.remote_key_is_primary = False
primary_key = get_cls_info(self.remote_cls).primary_key
if len(primary_key) == len(self.remote_key):
for column1, column2 in zip(self.remote_key, primary_key):
if column1.name != column2.name:
break
else:
self.remote_key_is_primary = True
self.many = many
self.on_remote = on_remote
# XXX These should probably be weak dictionaries.
self._local_columns = {}
self._remote_columns = {}
self._l_to_r = {}
self._r_to_l = {}
示例5: event_key
def event_key(self):
"""See `ILongPollEvent`.
Constructs the key from the table name of the Storm class.
"""
cls_info = get_cls_info(self.source)
return generate_event_key(
cls_info.table.name.lower())
示例6: __getattr__
def __getattr__(self, attr):
if attr.startswith("__"):
raise AttributeError(attr)
elif attr == "id":
cls_info = get_cls_info(self._cls)
return cls_info.primary_key[0]
else:
return getattr(self._cls, attr)
示例7: get_foreign_columns
def get_foreign_columns(self):
info = get_cls_info(self.orm_type)
for name, attr in info.attributes.items():
if not name.endswith('ID'):
continue
name = name[:-2]
ref = getattr(self.orm_type, name)
other_class = ref._remote_key.split('.')[0]
yield name, other_class
示例8: clear
def clear(self, *args, **kwargs):
store = Store.of(self._local)
if store is None:
raise NoStoreError("Can't perform operation without a store")
where = self._relation1.get_where_for_remote(self._local)
if args or kwargs:
filter = get_where_for_args(args, kwargs, self._target_cls)
join = self._relation2.get_where_for_join()
table = get_cls_info(self._target_cls).table
where &= Exists(Select(SQLRaw("*"), join & filter, tables=table))
store.find(self._link_cls, where).remove()
示例9: set_from_template
def set_from_template(self, template):
if not template:
return
for column in get_cls_info(template.__class__).columns:
if column.name in ['product_tax_template_id', 'te_id', 'id']:
continue
value = getattr(template, column.name)
setattr(self, column.name, value)
self.set_initial_values()
示例10: gen_reload_queries
def gen_reload_queries(objects):
"""Prepare queries to reload the given objects."""
for object_type, objects in collate(objects, get_type):
primary_key = get_cls_info(object_type).primary_key
if len(primary_key) != 1:
raise AssertionError(
"Compound primary keys are not supported: %s." %
object_type.__name__)
primary_key_column = primary_key[0]
primary_key_column_getter = primary_key_column.__get__
for store, objects in collate(objects, Store.of):
primary_keys = map(primary_key_column_getter, objects)
condition = primary_key_column.is_in(primary_keys)
yield store.find(object_type, condition)
示例11: add_class
def add_class(self, cls):
"""Register properties of C{cls} so that they may be found by C{get()}.
"""
suffix = cls.__module__.split(".")
suffix.append(cls.__name__)
suffix.reverse()
suffix = ".%s." % ".".join(suffix)
cls_info = get_cls_info(cls)
for attr in cls_info.attributes:
prop = cls_info.attributes[attr]
prop_ref = weakref.KeyedRef(prop, self._remove, None)
pair = (attr+suffix, prop_ref)
prop_ref.key = pair
insort_left(self._properties, pair)
示例12: _primary_key
def _primary_key(object_type, allow_compound=False):
"""Get a primary key our helpers can use.
:raises AssertionError if the key is missing or unusable.
"""
primary_key = get_cls_info(object_type).primary_key
if len(primary_key) == 1:
return primary_key[0]
else:
if not allow_compound:
raise AssertionError(
"Compound primary keys are not supported: %s." %
object_type.__name__)
return primary_key
示例13: create
def create(columns, values, get_objects=False,
get_primary_keys=False):
"""Create a large number of objects efficiently.
:param columns: The Storm columns to insert values into. Must be from a
single class.
:param values: A list of lists of values for the columns.
:param get_objects: Return the created objects.
:param get_primary_keys: Return the created primary keys.
:return: A list of the created objects if get_created, otherwise None.
"""
# Flatten Reference faux-columns into their primary keys.
db_cols = list(chain.from_iterable(map(dbify_column, columns)))
clses = set(col.cls for col in db_cols)
if len(clses) != 1:
raise ValueError(
"The Storm columns to insert values into must be from a single "
"class.")
if get_objects and get_primary_keys:
raise ValueError(
"get_objects and get_primary_keys are mutually exclusive.")
if len(values) == 0:
return [] if (get_objects or get_primary_keys) else None
[cls] = clses
primary_key = get_cls_info(cls).primary_key
# Mangle our value list into compilable values. Normal columns just
# get passed through the variable factory, while References get
# squashed into primary key variables.
db_values = [
list(chain.from_iterable(
dbify_value(col, val) for col, val in zip(columns, value)))
for value in values]
if get_objects or get_primary_keys:
result = IStore(cls).execute(
Returning(Insert(
db_cols, values=db_values, primary_columns=primary_key)))
keys = map(itemgetter(0), result) if len(primary_key) == 1 else result
if get_objects:
return load(cls, keys)
else:
return list(keys)
else:
IStore(cls).execute(Insert(db_cols, values=db_values))
return None
示例14: set_item_tax
def set_item_tax(self, invoice_item, template=None):
""" Set the tax of an invoice item.
:param invoice_item: the item of in/out invoice
"""
template = template or self.get_tax_template(invoice_item)
if not template:
return
for column in get_cls_info(template.__class__).columns:
if column.name in ['product_tax_template_id', 'te_id', 'id']:
continue
value = getattr(template, column.name)
setattr(self, column.name, value)
self.set_initial_values(invoice_item)
示例15: clone
def clone(self):
"""Get a persistent copy of an existent object. Remember that we can
not use copy because this approach will not activate ORMObject
methods which allow creating persitent objects. We also always
need a new id for each copied object.
:returns: the copy of ourselves
"""
warnings.warn("don't use this", DeprecationWarning, stacklevel=2)
kwargs = {}
for column in get_cls_info(self.__class__).columns:
# FIXME: Make sure this is cloning correctly
name = column.name
if name in ["id", "identifier", "te_id"]:
continue
if name.endswith("_id"):
name = name[:-3]
kwargs[name] = getattr(self, name)
klass = type(self)
return klass(store=self.store, **kwargs)