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Ensure numberic sort keys are 0 is the value is None or an empty string

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Kovid Goyal 2020-10-21 22:10:23 +05:30
parent 4bb557ec41
commit 9bb6e83b68
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1 changed files with 5 additions and 0 deletions
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src/calibre/db/fields.py
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@ -25,6 +25,10 @@ def bool_sort_key(bools_are_tristate):
return (lambda x:{True: 1, False: 2, None: 3}.get(x, 3)) if bools_are_tristate else lambda x:{True: 1, False: 2, None: 2}.get(x, 2)
def numeric_sort_key(x):
return x or 0
IDENTITY = lambda x: x
@ -56,6 +60,7 @@ class Field(object):
if dt in {'int', 'float', 'rating'}:
self._default_sort_key = 0
self._sort_key = numeric_sort_key
elif dt == 'bool':
self._default_sort_key = None
self._sort_key = bool_sort_key(bools_are_tristate)