64 lines
2.4 KiB
Rust
64 lines
2.4 KiB
Rust
//
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// imag - the personal information management suite for the commandline
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// Copyright (C) 2015-2019 Matthias Beyer <mail@beyermatthias.de> and contributors
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; version
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// 2.1 of the License.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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use libimagentryutil::isa::Is;
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use libimagentryutil::isa::IsKindHeaderPathProvider;
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use libimagstore::store::Entry;
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use libimagstore::store::Store;
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use libimagstore::storeid::StoreIdIterator;
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use libimagentrylink::internal::InternalLinker;
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use toml_query::read::TomlValueReadTypeExt;
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use failure::Fallible as Result;
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use failure::Error;
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use failure::err_msg;
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use store::CATEGORY_REGISTER_NAME_FIELD_PATH;
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use iter::CategoryEntryIterator;
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provide_kindflag_path!(pub IsCategory, "category.is_category");
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pub trait Category {
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fn is_category(&self) -> Result<bool>;
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fn get_name(&self) -> Result<String>;
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fn get_entries<'a>(&self, store: &'a Store) -> Result<CategoryEntryIterator<'a>>;
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}
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impl Category for Entry {
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fn is_category(&self) -> Result<bool> {
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self.is::<IsCategory>()
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}
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fn get_name(&self) -> Result<String> {
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trace!("Getting category name of '{:?}'", self.get_location());
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self.get_header()
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.read_string(CATEGORY_REGISTER_NAME_FIELD_PATH)
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.map_err(Error::from)?
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.ok_or_else(|| Error::from(err_msg("Category name missing")))
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}
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fn get_entries<'a>(&self, store: &'a Store) -> Result<CategoryEntryIterator<'a>> {
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trace!("Getting linked entries for category '{:?}'", self.get_location());
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let sit = self.get_internal_links()?.map(|l| l.get_store_id().clone()).map(Ok);
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let sit = StoreIdIterator::new(Box::new(sit));
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let name = self.get_name()?;
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Ok(CategoryEntryIterator::new(store, sit, name))
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}
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}
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