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message/document: allow updating flags

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Some flags (such as 'personal') can only be set just before storing; so allow
for update the flags.
This commit is contained in:
Dirk-Jan C. Binnema
2022-05-01 11:14:54 +03:00
parent fea596ae3b
commit a4f39819ee
3 changed files with 26 additions and 2 deletions
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10
lib/message/mu-document.cc
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@ -198,12 +198,18 @@ void
Document::add(Flags flags)
{
constexpr auto field{field_from_id(Field::Id::Flags)};
const auto old_flags{flags_value()};
xdoc_.add_value(field.value_no(), to_lexnum(static_cast<int64_t>(flags)));
flag_infos_for_each([&](auto&& flag_info) {
auto term=[&](){return field.xapian_term(flag_info.shortcut_lower());};
if (any_of(flag_info.flag & flags))
xdoc_.add_boolean_term(field.xapian_term(
flag_info.shortcut_lower()));
xdoc_.add_boolean_term(term());
else if(any_of(flag_info.flag & old_flags)) {
/* field can be _updated_, so clear out any removed flags */
xdoc_.remove_term(term());
}
});
}