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Kovid Goyal 2013-05-29 18:19:50 +05:30
parent d0b8e4248f
commit b1d558a92a
1 changed files with 39 additions and 33 deletions
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72
src/calibre/library/caches.py
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@ -21,7 +21,7 @@ from calibre.ebooks.metadata import title_sort, author_to_author_sort
from calibre.ebooks.metadata.opf2 import metadata_to_opf
from calibre import prints
class MetadataBackup(Thread): # {{{
class MetadataBackup(Thread): # {{{
'''
Continuously backup changed metadata into OPF files
in the book directory. This class runs in its own
@ -51,7 +51,7 @@ class MetadataBackup(Thread): # {{{
def run(self):
while self.keep_running:
try:
time.sleep(2) # Limit to one book per two seconds
time.sleep(2) # Limit to one book per two seconds
(id_, sequence) = self.db.get_a_dirtied_book()
if id_ is None:
continue
@ -95,7 +95,7 @@ class MetadataBackup(Thread): # {{{
if not self.keep_running:
break
time.sleep(0.1) # Give the GUI thread a chance to do something
time.sleep(0.1) # Give the GUI thread a chance to do something
try:
self.do_write(path, raw)
except:
@ -118,7 +118,7 @@ class MetadataBackup(Thread): # {{{
# }}}
### Global utility function for get_match here and in gui2/library.py
# Global utility function for get_match here and in gui2/library.py
# This is a global for performance
pref_use_primary_find_in_search = False
@ -142,7 +142,7 @@ def force_to_bool(val):
val = None
return val
class CacheRow(list): # {{{
class CacheRow(list): # {{{
def __init__(self, db, composites, val, series_col, series_sort_col):
self.db = db
@ -191,7 +191,7 @@ class CacheRow(list): # {{{
# }}}
class ResultCache(SearchQueryParser): # {{{
class ResultCache(SearchQueryParser): # {{{
'''
Stores sorted and filtered metadata in memory.
@ -228,7 +228,6 @@ class ResultCache(SearchQueryParser): # {{{
self.db_prefs = self.all_search_locations = None
self.sqp_change_locations([])
def __getitem__(self, row):
return self._data[self._map_filtered[row]]
@ -331,7 +330,8 @@ class ResultCache(SearchQueryParser): # {{{
if query == 'false':
for id_ in candidates:
item = self._data[id_]
if item is None: continue
if item is None:
continue
v = item[loc]
if isinstance(v, (str, unicode)):
v = parse_date(v)
@ -341,7 +341,8 @@ class ResultCache(SearchQueryParser): # {{{
if query == 'true':
for id_ in candidates:
item = self._data[id_]
if item is None: continue
if item is None:
continue
v = item[loc]
if isinstance(v, (str, unicode)):
v = parse_date(v)
@ -384,7 +385,8 @@ class ResultCache(SearchQueryParser): # {{{
field_count = query.count('/') + 1
for id_ in candidates:
item = self._data[id_]
if item is None or item[loc] is None: continue
if item is None or item[loc] is None:
continue
v = item[loc]
if isinstance(v, (str, unicode)):
v = parse_date(v)
@ -402,7 +404,7 @@ class ResultCache(SearchQueryParser): # {{{
'<=':[2, lambda r, q: r is not None and r <= q]
}
def get_numeric_matches(self, location, query, candidates, val_func = None):
def get_numeric_matches(self, location, query, candidates, val_func=None):
matches = set([])
if len(query) == 0:
return matches
@ -434,14 +436,14 @@ class ResultCache(SearchQueryParser): # {{{
(p, relop) = self.numeric_search_relops['=']
if dt == 'int':
cast = lambda x: int (x)
elif dt == 'rating':
cast = lambda x: 0 if x is None else int (x)
cast = lambda x: int(x)
elif dt == 'rating':
cast = lambda x: 0 if x is None else int(x)
adjust = lambda x: x/2
elif dt in ('float', 'composite'):
cast = lambda x : float (x)
else: # count operation
cast = (lambda x: int (x))
cast = lambda x : float(x)
else: # count operation
cast = (lambda x: int(x))
if len(query) > 1:
mult = query[-1:].lower()
@ -472,7 +474,7 @@ class ResultCache(SearchQueryParser): # {{{
def get_user_category_matches(self, location, query, candidates):
matches = set([])
if self.db_prefs is None or len(query) < 2:
return matches
return matches
user_cats = self.db_prefs.get('user_categories', [])
c = set(candidates)
@ -589,20 +591,20 @@ class ResultCache(SearchQueryParser): # {{{
val = force_to_bool(item[loc])
if not bools_are_tristate:
if val is None or not val: # item is None or set to false
if val is None or not val: # item is None or set to false
if query in (self.local_no, self.local_unchecked, '_no', 'false'):
matches.add(item[0])
else: # item is explicitly set to true
else: # item is explicitly set to true
if query in (self.local_yes, self.local_checked, '_yes', 'true'):
matches.add(item[0])
else:
if val is None:
if query in (self.local_empty, self.local_blank, '_empty', 'false'):
matches.add(item[0])
elif not val: # is not None and false
elif not val: # is not None and false
if query in (self.local_no, self.local_unchecked, '_no', 'true'):
matches.add(item[0])
else: # item is not None and true
else: # item is not None and true
if query in (self.local_yes, self.local_checked, '_yes', 'true'):
matches.add(item[0])
return matches
@ -717,7 +719,7 @@ class ResultCache(SearchQueryParser): # {{{
query = query.decode('utf-8')
db_col = {}
exclude_fields = [] # fields to not check when matching against text.
exclude_fields = [] # fields to not check when matching against text.
col_datatype = []
is_multiple_cols = {}
for x in range(len(self.FIELD_MAP)):
@ -744,9 +746,9 @@ class ResultCache(SearchQueryParser): # {{{
location[i] = db_col[loc]
current_candidates = candidates.copy()
for loc in location: # location is now an array of field indices
for loc in location: # location is now an array of field indices
if loc == db_col['authors']:
### DB stores authors with commas changed to bars, so change query
# DB stores authors with commas changed to bars, so change query
if matchkind == REGEXP_MATCH:
q = query.replace(',', r'\|')
else:
@ -762,7 +764,8 @@ class ResultCache(SearchQueryParser): # {{{
for id_ in current_candidates:
item = self._data[id_]
if item is None: continue
if item is None:
continue
if not item[loc]:
if q == 'false' and matchkind == CONTAINS_MATCH:
@ -779,12 +782,12 @@ class ResultCache(SearchQueryParser): # {{{
matches.add(item[0])
continue
if col_datatype[loc] == 'rating': # get here if 'all' query
if col_datatype[loc] == 'rating': # get here if 'all' query
if rating_query and rating_query == int(item[loc]):
matches.add(item[0])
continue
try: # a conversion below might fail
try: # a conversion below might fail
# relationals are not supported in 'all' queries
if col_datatype[loc] == 'float':
if float(query) == item[loc]:
@ -799,11 +802,11 @@ class ResultCache(SearchQueryParser): # {{{
# no further match is possible
continue
if loc not in exclude_fields: # time for text matching
if loc not in exclude_fields: # time for text matching
if is_multiple_cols[loc] is not None:
vals = [v.strip() for v in item[loc].split(is_multiple_cols[loc])]
else:
vals = [item[loc]] ### make into list to make _match happy
vals = [item[loc]] # make into list to make _match happy
if _match(q, vals, matchkind,
use_primary_find_in_search=pref_use_primary_find_in_search):
matches.add(item[0])
@ -983,7 +986,7 @@ class ResultCache(SearchQueryParser): # {{{
self.series_col, self.series_sort_col)
self._data[id].append(db.book_on_device_string(id))
self._data[id].append(self.marked_ids_dict.get(id, None))
self._data[id].append(None) # Series sort column
self._data[id].append(None) # Series sort column
self._map[0:0] = ids
self._map_filtered[0:0] = ids
@ -1035,8 +1038,10 @@ class ResultCache(SearchQueryParser): # {{{
def sanitize_sort_field_name(self, field):
field = self.field_metadata.search_term_to_field_key(field.lower().strip())
# translate some fields to their hidden equivalent
if field == 'title': field = 'sort'
elif field == 'authors': field = 'author_sort'
if field == 'title':
field = 'sort'
elif field == 'authors':
field = 'author_sort'
return field
def sort(self, field, ascending, subsort=False):
@ -1181,3 +1186,4 @@ class SortKeyGenerator(object):
# }}}