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Pass the set of book_ids already matched by previous search terms to the template search.

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Reason: the template can use the candidate set to limit work to books already matched.
This commit is contained in:
Charles Haley 2024-03-13 12:24:42 +00:00
parent 5d6ab97c43
commit 08c33d01cb
2 changed files with 10 additions and 2 deletions
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2
src/calibre/db/search.py
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@ -671,7 +671,7 @@ class Parser(SearchQueryParser): # {{{
matches = set()
error_string = '*@*TEMPLATE_ERROR*@*'
template_cache = {}
global_vars = {}
global_vars = {'_candidates': candidates}
for book_id in candidates:
mi = self.dbcache.get_proxy_metadata(book_id)
val = mi.formatter.safe_format(template, {}, error_string, mi,

10
src/calibre/gui2/dialogs/search.py
View File

@ -294,7 +294,15 @@ def create_template_tab(self):
self.template_program_box = le = TemplateLineEditor(self.tab_widget)
le.setObjectName('template_program_box')
le.setPlaceholderText(_('The template that generates the value'))
le.setToolTip(_('Right click to open a template editor'))
le.setToolTip('<p>' +
_('Right click to open a template editor. <br>'
'Technical note: the set of book ids already matched by '
'previous search terms in the search expression is passed '
'to the template in the global variables dictionary with the '
'key "{0}". You can use the set to limit any work the '
'template does to the set of books already matched, possibly '
'improving performance.'
).format('_candidates') + '</p>')
lo = QHBoxLayout()
lo.addWidget(le)
self.edit_template_button = tb = QToolButton()