You should have received a copy of the GNU General Public License
along with notmuch. If not, see <http://www.gnu.org/licenses/>.
-Copyright 2010 Sebastian Spaeth <Sebastian@SSpaeth.de>'
+Copyright 2010 Sebastian Spaeth <Sebastian@SSpaeth.de>
"""
from ctypes import c_char_p, c_uint
-from notmuch.globals import (
+from .globals import (
nmlib,
Enum,
_str,
NotmuchThreadsP,
NotmuchDatabaseP,
NotmuchMessagesP,
+)
+from .errors import (
NullPointerError,
NotInitializedError,
)
-from notmuch.thread import Threads
-from notmuch.message import Messages
+from .threads import Threads
+from .messages import Messages
class Query(object):
def _assert_query_is_initialized(self):
"""Raises :exc:`NotInitializedError` if self._query is `None`"""
- if self._query is None:
+ if not self._query:
raise NotInitializedError()
"""notmuch_query_create"""
:type db: :class:`Database`
:param querystr: The query string
:type querystr: utf-8 encoded str or unicode
- :returns: Nothing
- :exception:
+ :raises:
:exc:`NullPointerError` if the query creation failed
(e.g. too little memory).
:exc:`NotInitializedError` if the underlying db was not
to get the value of this flag.
:returns: :class:`Threads`
- :exception: :exc:`NullPointerError` if search_threads failed
+ :raises: :exc:`NullPointerError` if search_threads failed
"""
self._assert_query_is_initialized()
threads_p = Query._search_threads(self._query)
:class:`Messages` in the defined sort order
:returns: :class:`Messages`
- :exception: :exc:`NullPointerError` if search_messages failed
+ :raises: :exc:`NullPointerError` if search_messages failed
"""
self._assert_query_is_initialized()
msgs_p = Query._search_messages(self._query)
raise NullPointerError
return Messages(msgs_p, self)
- """notmuch_query_count_messages"""
_count_messages = nmlib.notmuch_query_count_messages
_count_messages.argtypes = [NotmuchQueryP]
_count_messages.restype = c_uint
def count_messages(self):
- """Estimate the number of messages matching the query
-
+ '''
This function performs a search and returns Xapian's best
- guess as to the number of matching messages. It is much faster
- than performing :meth:`search_messages` and counting the
- result with `len()` (although it always returned the same
- result in my tests). Technically, it wraps the underlying
- *notmuch_query_count_messages* function.
+ guess as to the number of matching messages.
- :returns: :class:`Messages`
- """
+ :returns: the estimated number of messages matching this query
+ :rtype: int
+ '''
self._assert_query_is_initialized()
return Query._count_messages(self._query)
+ _count_threads = nmlib.notmuch_query_count_threads
+ _count_threads.argtypes = [NotmuchQueryP]
+ _count_threads.restype = c_uint
+
+ def count_threads(self):
+ '''
+ This function performs a search and returns the number of
+ unique thread IDs in the matching messages. This is the same
+ as number of threads matching a search.
+
+ Note that this is a significantly heavier operation than
+ meth:`Query.count_messages`.
+
+ :returns: the number of threads returned by this query
+ :rtype: int
+ '''
+ self._assert_query_is_initialized()
+ return Query._count_threads(self._query)
+
_destroy = nmlib.notmuch_query_destroy
_destroy.argtypes = [NotmuchQueryP]
_destroy.restype = None
def __del__(self):
"""Close and free the Query"""
- if self._query is not None:
+ if self._query:
self._destroy(self._query)