Hopiu/xapian-haystack
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added :memory: option

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This commit is contained in:
Michael Opitz 2011-07-17 17:50:35 +02:00
parent d32dde1b7b
commit 0741a63bf8
1 changed files with 12 additions and 2 deletions
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14
xapian_backend.py
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@ -33,6 +33,8 @@ DOCUMENT_ID_TERM_PREFIX = 'Q'
DOCUMENT_CUSTOM_TERM_PREFIX = 'X'
DOCUMENT_CT_TERM_PREFIX = DOCUMENT_CUSTOM_TERM_PREFIX + 'CONTENTTYPE'
MEMORY_DB_NAME = ':memory:'
BACKEND_NAME = 'xapian'
DEFAULT_XAPIAN_FLAGS = (
@ -125,6 +127,9 @@ class SearchBackend(BaseSearchBackend):
your settings. This should point to a location where you would your
indexes to reside.
"""
inmemory_db = None
def __init__(self, site=None, language='english'):
"""
Instantiates an instance of `SearchBackend`.
@ -139,8 +144,9 @@ class SearchBackend(BaseSearchBackend):
if not hasattr(settings, 'HAYSTACK_XAPIAN_PATH'):
raise ImproperlyConfigured('You must specify a HAYSTACK_XAPIAN_PATH in your settings.')
if not os.path.exists(settings.HAYSTACK_XAPIAN_PATH):
if settings.HAYSTACK_XAPIAN_PATH != MEMORY_DB_NAME and \
not os.path.exists(settings.HAYSTACK_XAPIAN_PATH):
os.makedirs(settings.HAYSTACK_XAPIAN_PATH)
self.language = language
@ -813,6 +819,10 @@ class SearchBackend(BaseSearchBackend):
Returns an instance of a xapian.Database or xapian.WritableDatabase
"""
if settings.HAYSTACK_XAPIAN_PATH == MEMORY_DB_NAME:
if not SearchBackend.inmemory_db:
SearchBackend.inmemory_db = xapian.inmemory_open()
return SearchBackend.inmemory_db
if writable:
database = xapian.WritableDatabase(settings.HAYSTACK_XAPIAN_PATH, xapian.DB_CREATE_OR_OPEN)
else: