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Instance: add GetDatabaseOrThrow()

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This commit is contained in:
Max Kellermann
2016-10-26 18:47:19 +02:00
parent 6135f0763b
commit 086652dd50
12 changed files with 65 additions and 40 deletions
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18
src/db/DatabasePrint.cxx
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@@ -155,9 +155,7 @@ db_selection_print(Response &r, Partition &partition,
unsigned window_start, unsigned window_end,
Error &error)
{
const Database *db = partition.GetDatabase(error);
if (db == nullptr)
return false;
const Database &db = partition.GetDatabaseOrThrow();
unsigned i = 0;
@@ -182,7 +180,7 @@ db_selection_print(Response &r, Partition &partition,
return !in_window || s(song, error2);
};
return db->Visit(selection, d, s, p, error);
return db.Visit(selection, d, s, p, error);
}
bool
@@ -226,9 +224,7 @@ PrintUniqueTags(Response &r, Partition &partition,
const SongFilter *filter,
Error &error)
{
const Database *db = partition.GetDatabase(error);
if (db == nullptr)
return false;
const Database &db = partition.GetDatabaseOrThrow();
const DatabaseSelection selection("", true, filter);
@@ -236,15 +232,15 @@ PrintUniqueTags(Response &r, Partition &partition,
using namespace std::placeholders;
const auto f = std::bind(PrintSongURIVisitor,
std::ref(r), std::ref(partition), _1);
return db->Visit(selection, f, error);
return db.Visit(selection, f, error);
} else {
assert(type < TAG_NUM_OF_ITEM_TYPES);
using namespace std::placeholders;
const auto f = std::bind(PrintUniqueTag, std::ref(r),
(TagType)type, _1);
return db->VisitUniqueTags(selection, (TagType)type,
group_mask,
f, error);
return db.VisitUniqueTags(selection, (TagType)type,
group_mask,
f, error);
}
}