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Avoid parsing the undefined number sort key tweak for every undefined number

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Kovid Goyal 2021-12-13 19:26:06 +05:30
parent bd7dbfec43
commit cd42a1c644
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 8 additions and 6 deletions
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src/calibre/db/fields.py
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@ -6,6 +6,7 @@ __license__ = 'GPL v3'
__copyright__ = '2011, Kovid Goyal <kovid@kovidgoyal.net>'
__docformat__ = 'restructuredtext en'
import sys
from threading import Lock
from collections import defaultdict, Counter
from functools import partial
@ -33,15 +34,15 @@ def sort_value_for_undefined_numbers():
if t == 'maximum':
return float('inf')
return float(t)
except:
print('***** Bad value in undefined sort number tweak', t)
except Exception:
print('***** Bad value in undefined sort number tweak', t, file=sys.stderr)
return 0
def numeric_sort_key(x):
def numeric_sort_key(defval, x):
# It isn't clear whether this function can ever be called with a non-numeric
# argument, but we check just in case
return x if type(x) in (int, float) else sort_value_for_undefined_numbers()
return x if type(x) in (int, float) else defval
IDENTITY = lambda x: x
@ -75,7 +76,7 @@ class Field:
if dt in {'int', 'float', 'rating'}:
self._default_sort_key = sort_value_for_undefined_numbers()
self._sort_key = numeric_sort_key
self._sort_key = partial(numeric_sort_key, self._default_sort_key)
elif dt == 'bool':
self._default_sort_key = None
self._sort_key = bool_sort_key(bools_are_tristate)
@ -247,6 +248,7 @@ class CompositeField(OneToOneField):
composite_sort = m.get('display', {}).get('composite_sort', None)
if composite_sort == 'number':
self._default_sort_key = 0
self._undefined_number_sort_key = sort_value_for_undefined_numbers()
self._sort_key = self.number_sort_key
elif composite_sort == 'date':
self._default_sort_key = UNDEFINED_DATE
@ -277,7 +279,7 @@ class CompositeField(OneToOneField):
val = val[:(-2 if p > 1 else -1)].strip()
val = atof(val) * p
except (TypeError, AttributeError, ValueError, KeyError):
val = sort_value_for_undefined_numbers()
val = self._undefined_number_sort_key
return val
def date_sort_key(self, val):