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Handle formatting of recursive compisite templates

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Kovid Goyal 2010-09-28 18:15:31 -06:00
parent fef738c53b
commit ca0e8729d2
1 changed files with 14 additions and 1 deletions
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15
src/calibre/library/save_to_disk.py
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@ -106,18 +106,31 @@ class SafeFormat(TemplateFormatter):
'''
Provides a format function that substitutes '' for any missing value
'''
composite_values = {}
def get_value(self, key, args, kwargs):
try:
b = self.book.get_user_metadata(key, False)
key = key.lower()
if b is not None and b['datatype'] == 'composite':
return self.vformat(b['display']['composite_template'], [], kwargs)
if key in self.composite_values:
return self.composite_values[key]
self.composite_values[key] = 'RECURSIVE_COMPOSITE FIELD (S2D) ' + key
self.composite_values[key] = \
self.vformat(b['display']['composite_template'], [], kwargs)
return self.composite_values[key]
if kwargs[key]:
return self.sanitize(kwargs[key.lower()])
return ''
except:
return ''
def safe_format(self, fmt, kwargs, error_value, book, sanitize=None):
self.composite_values = {}
return TemplateFormatter.safe_format(self, fmt, kwargs, error_value,
book, sanitize)
safe_formatter = SafeFormat()
def get_components(template, mi, id, timefmt='%b %Y', length=250,