45553c5f61
The three new compare operators "eq", "gt" and "lt" are casting the values to int. Sort supports: - uri: sort by uri - value: sort by value as string - value_int: casts value to int Closes #1894
121 lines
2.8 KiB
C++
121 lines
2.8 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Copyright The Music Player Daemon Project
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#include "SongSticker.hxx"
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#include "Sticker.hxx"
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#include "Database.hxx"
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#include "song/LightSong.hxx"
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#include "db/Interface.hxx"
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#include "util/AllocatedString.hxx"
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#include <string.h>
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#include <stdlib.h>
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using std::string_view_literals::operator""sv;
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std::string
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sticker_song_get_value(StickerDatabase &db,
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const LightSong &song, const char *name)
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{
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const auto uri = song.GetURI();
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return db.LoadValue("song", uri.c_str(), name);
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}
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void
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sticker_song_set_value(StickerDatabase &db,
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const LightSong &song,
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const char *name, const char *value)
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{
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const auto uri = song.GetURI();
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db.StoreValue("song", uri.c_str(), name, value);
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}
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bool
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sticker_song_delete(StickerDatabase &db, const char *uri)
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{
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return db.Delete("song", uri);
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}
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bool
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sticker_song_delete(StickerDatabase &db, const LightSong &song)
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{
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return sticker_song_delete(db, song.GetURI().c_str());
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}
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bool
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sticker_song_delete_value(StickerDatabase &db,
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const LightSong &song, const char *name)
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{
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const auto uri = song.GetURI();
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return db.DeleteValue("song", uri.c_str(), name);
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}
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Sticker
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sticker_song_get(StickerDatabase &db, const LightSong &song)
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{
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const auto uri = song.GetURI();
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return db.Load("song", uri.c_str());
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}
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namespace {
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struct sticker_song_find_data {
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const Database *db;
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const char *base_uri;
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size_t base_uri_length;
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void (*func)(const LightSong &song, const char *value,
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void *user_data);
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void *user_data;
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};
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} // namespace
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static void
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sticker_song_find_cb(const char *uri, const char *value, void *user_data)
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{
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auto *data =
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(struct sticker_song_find_data *)user_data;
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if (memcmp(uri, data->base_uri, data->base_uri_length) != 0)
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/* should not happen, ignore silently */
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return;
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const Database *db = data->db;
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try {
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const LightSong *song = db->GetSong(uri);
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data->func(*song, value, data->user_data);
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db->ReturnSong(song);
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} catch (...) {
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}
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}
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void
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sticker_song_find(StickerDatabase &sticker_database, const Database &db,
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const char *base_uri, const char *name,
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StickerOperator op, const char *value,
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const char *sort, bool descending, RangeArg window,
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void (*func)(const LightSong &song, const char *value,
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void *user_data),
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void *user_data)
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{
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struct sticker_song_find_data data;
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data.db = &db;
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data.func = func;
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data.user_data = user_data;
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AllocatedString allocated;
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data.base_uri = base_uri;
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if (*data.base_uri != 0) {
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/* append slash to base_uri */
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allocated = AllocatedString{std::string_view{data.base_uri}, "/"sv};
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data.base_uri = allocated.c_str();
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} else {
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/* searching in root directory - no trailing slash */
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}
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data.base_uri_length = strlen(data.base_uri);
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sticker_database.Find("song", data.base_uri, name, op, value,
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sort, descending, window,
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sticker_song_find_cb, &data);
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}
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