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Allow searching by the number of tags/authors/formats/etc. See User Manual for details. Fix #7459 (Bug/error when copying and deleting from one library to another). Fix #7548

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This commit is contained in:
Kovid Goyal 2010-11-27 16:13:46 -07:00
commit c5204ef656
7 changed files with 63 additions and 36 deletions
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14
src/calibre/gui2/custom_column_widgets.py
View File

@ -437,7 +437,7 @@ class BulkBool(BulkBase, Bool):
if tweaks['bool_custom_columns_are_tristate'] == 'no' and val is None:
val = False
if value is not None and value != val:
return None
return 'nochange'
value = val
return value
@ -445,19 +445,23 @@ class BulkBool(BulkBase, Bool):
self.widgets = [QLabel('&'+self.col_metadata['name']+':', parent),
QComboBox(parent)]
w = self.widgets[1]
items = [_('Yes'), _('No'), _('Undefined')]
icons = [I('ok.png'), I('list_remove.png'), I('blank.png')]
items = [_('Yes'), _('No'), _('Undefined'), _('Do not change')]
icons = [I('ok.png'), I('list_remove.png'), I('blank.png'), I('blank.png')]
for icon, text in zip(icons, items):
w.addItem(QIcon(icon), text)
def getter(self):
val = self.widgets[1].currentIndex()
return {3: 'nochange', 2: None, 1: False, 0: True}[val]
def setter(self, val):
val = {None: 2, False: 1, True: 0}[val]
val = {'nochange': 3, None: 2, False: 1, True: 0}[val]
self.widgets[1].setCurrentIndex(val)
def commit(self, book_ids, notify=False):
val = self.gui_val
val = self.normalize_ui_val(val)
if val != self.initial_val:
if val != self.initial_val and val != 'nochange':
if tweaks['bool_custom_columns_are_tristate'] == 'no' and val is None:
val = False
self.db.set_custom_bulk(book_ids, val, num=self.col_id, notify=notify)

29
src/calibre/library/caches.py
View File

@ -403,7 +403,7 @@ class ResultCache(SearchQueryParser): # {{{
'<=':[2, lambda r, q: r <= q]
}
def get_numeric_matches(self, location, query):
def get_numeric_matches(self, location, query, val_func = None):
matches = set([])
if len(query) == 0:
return matches
@ -419,7 +419,10 @@ class ResultCache(SearchQueryParser): # {{{
if relop is None:
(p, relop) = self.numeric_search_relops['=']
if val_func is None:
loc = self.field_metadata[location]['rec_index']
val_func = lambda item, loc=loc: item[loc]
dt = self.field_metadata[location]['datatype']
if dt == 'int':
cast = (lambda x: int (x))
@ -430,6 +433,9 @@ class ResultCache(SearchQueryParser): # {{{
elif dt == 'float':
cast = lambda x : float (x)
adjust = lambda x: x
else: # count operation
cast = (lambda x: int (x))
adjust = lambda x: x
if len(query) > 1:
mult = query[-1:].lower()
@ -446,10 +452,11 @@ class ResultCache(SearchQueryParser): # {{{
for item in self._data:
if item is None:
continue
if not item[loc]:
v = val_func(item)
if not v:
i = 0
else:
i = adjust(item[loc])
i = adjust(v)
if relop(i, q):
matches.add(item[0])
return matches
@ -467,16 +474,24 @@ class ResultCache(SearchQueryParser): # {{{
return matches
raise ParseException(query, len(query), 'Recursive query group detected', self)
if location in self.field_metadata:
fm = self.field_metadata[location]
# take care of dates special case
if location in self.field_metadata and \
self.field_metadata[location]['datatype'] == 'datetime':
if fm['datatype'] == 'datetime':
return self.get_dates_matches(location, query.lower())
# take care of numbers special case
if location in self.field_metadata and \
self.field_metadata[location]['datatype'] in ('rating', 'int', 'float'):
if fm['datatype'] in ('rating', 'int', 'float'):
return self.get_numeric_matches(location, query.lower())
# take care of the 'count' operator for is_multiples
if fm['is_multiple'] and \
len(query) > 1 and query.startswith('#') and \
query[1:1] in '=<>!':
vf = lambda item, loc=fm['rec_index'], ms=fm['is_multiple']:\
len(item[loc].split(ms)) if item[loc] is not None else 0
return self.get_numeric_matches(location, query[1:], val_func=vf)
# everything else, or 'all' matches
matchkind = CONTAINS_MATCH
if (len(query) > 1):

2
src/calibre/library/database2.py
View File

@ -268,8 +268,6 @@ class LibraryDatabase2(LibraryDatabase, SchemaUpgrade, CustomColumns):
base,
prefer_custom=True)
self.field_metadata.set_field_record_index('cover',
self.FIELD_MAP['cover'], prefer_custom=False)
self.FIELD_MAP['ondevice'] = base+1
self.field_metadata.set_field_record_index('ondevice', base+1, prefer_custom=False)
self.FIELD_MAP['all_metadata'] = base+2

24
src/calibre/library/field_metadata.py
View File

@ -3,6 +3,7 @@ Created on 25 May 2010
@author: charles
'''
import copy
from calibre.utils.ordered_dict import OrderedDict
from calibre.utils.config import tweaks
@ -86,7 +87,7 @@ class FieldMetadata(dict):
# Builtin metadata {{{
_field_metadata = [
_field_metadata_prototype = [
('authors', {'table':'authors',
'column':'name',
'link_column':'author',
@ -161,6 +162,15 @@ class FieldMetadata(dict):
'search_terms':['tags', 'tag'],
'is_custom':False,
'is_category':True}),
('all_metadata',{'table':None,
'column':None,
'datatype':None,
'is_multiple':None,
'kind':'field',
'name':None,
'search_terms':[],
'is_custom':False,
'is_category':False}),
('author_sort',{'table':None,
'column':None,
'datatype':'text',
@ -180,7 +190,7 @@ class FieldMetadata(dict):
'is_custom':False, 'is_category':False}),
('cover', {'table':None,
'column':None,
'datatype':None,
'datatype':'int',
'is_multiple':None,
'kind':'field',
'name':None,
@ -223,15 +233,6 @@ class FieldMetadata(dict):
'search_terms':[],
'is_custom':False,
'is_category':False}),
('all_metadata',{'table':None,
'column':None,
'datatype':None,
'is_multiple':None,
'kind':'field',
'name':None,
'search_terms':[],
'is_custom':False,
'is_category':False}),
('ondevice', {'table':None,
'column':None,
'datatype':'text',
@ -322,6 +323,7 @@ class FieldMetadata(dict):
]
def __init__(self):
self._field_metadata = copy.deepcopy(self._field_metadata_prototype)
self._tb_cats = OrderedDict()
self._search_term_map = {}
self.custom_label_to_key_map = {}

8
src/calibre/manual/gui.rst
View File

@ -274,6 +274,14 @@ Searching for ``no`` or ``unchecked`` will find all books with ``No`` in the col
:guilabel:`Advanced Search Dialog`
You can test for the number of items in multiple-value columns, such as tags, formats, authors, and tags-like custom columns. This is done using a syntax very similar to numeric tests (discussed above), except that the relational operator begins with a ``#`` character. For example::
tags:#>3 will give you books with more than three tags
tags:#!=3 will give you books that do not have three tags
authors:#=1 will give you books with exactly one author
#cust:#<5 will give you books with less than five items in custom column #cust
formats:#>1 will give you books with more than one format
Saving searches
-----------------