Switch to FTS5 with unicode61 (#229)
* Switch to FTS5 with unicode61 * Update required sqlite version in README * Update README * Change back db file
This commit is contained in:
parent
02cda47c28
commit
8a0e66bf11
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@ -105,7 +105,7 @@ pkg_check_modules(GSTREAMER_TAG gstreamer-tag-1.0)
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pkg_check_modules(LIBXINE libxine)
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pkg_check_modules(LIBVLC libvlc)
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pkg_check_modules(PHONON phonon4qt5)
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pkg_check_modules(SQLITE REQUIRED sqlite3>=3.7)
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pkg_check_modules(SQLITE REQUIRED sqlite3>=3.9)
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pkg_check_modules(LIBPULSE libpulse)
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pkg_check_modules(CHROMAPRINT libchromaprint)
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pkg_check_modules(LIBGPOD libgpod-1.0>=0.7.92)
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@ -42,7 +42,7 @@ To build Strawberry from source you need the following installed on your system
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* [Protobuf library and compiler](https://developers.google.com/protocol-buffers/)
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* [Qt 5 with components Core, Gui, Widgets, Concurrent, Network and Sql](https://www.qt.io/)
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* [Qt 5 components X11Extras and DBus for Linux/BSD, MacExtras for macOS and WinExtras for Windows](https://www.qt.io/)
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* [SQLite3](https://www.sqlite.org)
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* [SQLite 3.9 or newer with FTS5](https://www.sqlite.org)
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* [Chromaprint library](https://acoustid.org/chromaprint)
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* [ALSA library (linux)](https://www.alsa-project.org/)
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* [DBus (linux)](https://www.freedesktop.org/wiki/Software/dbus/)
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@ -9,6 +9,7 @@
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<file>schema/schema-6.sql</file>
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<file>schema/schema-7.sql</file>
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<file>schema/schema-8.sql</file>
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<file>schema/schema-9.sql</file>
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<file>schema/device-schema.sql</file>
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<file>style/strawberry.css</file>
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<file>html/playing-tooltip-plain.html</file>
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@ -70,9 +70,9 @@ CREATE INDEX idx_device_%deviceid_songs_album ON device_%deviceid_songs (album);
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CREATE INDEX idx_device_%deviceid_songs_comp_artist ON device_%deviceid_songs (compilation_effective, artist);
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CREATE VIRTUAL TABLE device_%deviceid_fts USING fts3(
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CREATE VIRTUAL TABLE device_%deviceid_fts USING fts5(
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ftstitle, ftsalbum, ftsartist, ftsalbumartist, ftscomposer, ftsperformer, ftsgrouping, ftsgenre, ftscomment,
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tokenize=unicode
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tokenize=unicode61
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);
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UPDATE devices SET schema_version=0 WHERE ROWID=%deviceid;
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@ -0,0 +1,41 @@
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DROP TABLE %allsongstables_fts;
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DROP TABLE playlist_items_fts_;
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CREATE VIRTUAL TABLE %allsongstables_fts USING fts5(
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ftstitle,
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ftsalbum,
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ftsartist,
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ftsalbumartist,
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ftscomposer,
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ftsperformer,
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ftsgrouping,
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ftsgenre,
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ftscomment,
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tokenize = "unicode61 remove_diacritics 0"
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);
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CREATE VIRTUAL TABLE playlist_items_fts_ USING fts5(
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ftstitle,
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ftsalbum,
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ftsartist,
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ftsalbumartist,
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ftscomposer,
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ftsperformer,
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ftsgrouping,
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ftsgenre,
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ftscomment,
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tokenize = "unicode61 remove_diacritics 0"
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);
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INSERT INTO %allsongstables_fts (ROWID, ftstitle, ftsalbum, ftsartist, ftsalbumartist, ftscomposer, ftsperformer, ftsgrouping, ftsgenre, ftscomment)
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SELECT ROWID, title, album, artist, albumartist, composer, performer, grouping, genre, comment FROM %allsongstables;
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INSERT INTO playlist_items_fts_ (ROWID, ftstitle, ftsalbum, ftsartist, ftsalbumartist, ftscomposer, ftsperformer, ftsgrouping, ftsgenre, ftscomment)
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SELECT ROWID, title, album, artist, albumartist, composer, performer, grouping, genre, comment FROM playlist_items;
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UPDATE schema_version SET version=9;
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@ -4,7 +4,7 @@ CREATE TABLE IF NOT EXISTS schema_version (
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DELETE FROM schema_version;
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INSERT INTO schema_version (version) VALUES (8);
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INSERT INTO schema_version (version) VALUES (9);
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CREATE TABLE IF NOT EXISTS directories (
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path TEXT NOT NULL,
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@ -560,13 +560,17 @@ CREATE INDEX IF NOT EXISTS idx_url ON songs (url);
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CREATE INDEX IF NOT EXISTS idx_comp_artist ON songs (compilation_effective, artist);
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CREATE INDEX IF NOT EXISTS idx_albumartist ON songs (albumartist);
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CREATE INDEX IF NOT EXISTS idx_artist ON songs (artist);
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CREATE INDEX IF NOT EXISTS idx_album ON songs (album);
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CREATE INDEX IF NOT EXISTS idx_title ON songs (title);
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CREATE VIEW IF NOT EXISTS duplicated_songs as select artist dup_artist, album dup_album, title dup_title from songs as inner_songs where artist != '' and album != '' and title != '' and unavailable = 0 group by artist, album , title having count(*) > 1;
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CREATE VIRTUAL TABLE IF NOT EXISTS songs_fts USING fts3(
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CREATE VIRTUAL TABLE IF NOT EXISTS songs_fts USING fts5(
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ftstitle,
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ftsalbum,
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@ -577,11 +581,11 @@ CREATE VIRTUAL TABLE IF NOT EXISTS songs_fts USING fts3(
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ftsgrouping,
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ftsgenre,
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ftscomment,
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tokenize=unicode
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tokenize = "unicode61 remove_diacritics 0"
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);
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CREATE VIRTUAL TABLE IF NOT EXISTS tidal_artists_songs_fts USING fts3(
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CREATE VIRTUAL TABLE IF NOT EXISTS tidal_artists_songs_fts USING fts5(
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ftstitle,
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ftsalbum,
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@ -592,11 +596,11 @@ CREATE VIRTUAL TABLE IF NOT EXISTS tidal_artists_songs_fts USING fts3(
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ftsgrouping,
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ftsgenre,
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ftscomment,
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tokenize=unicode
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tokenize = "unicode61 remove_diacritics 0"
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);
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CREATE VIRTUAL TABLE IF NOT EXISTS tidal_albums_songs_fts USING fts3(
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CREATE VIRTUAL TABLE IF NOT EXISTS tidal_albums_songs_fts USING fts5(
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ftstitle,
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ftsalbum,
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@ -607,11 +611,11 @@ CREATE VIRTUAL TABLE IF NOT EXISTS tidal_albums_songs_fts USING fts3(
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ftsgrouping,
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ftsgenre,
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ftscomment,
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tokenize=unicode
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tokenize = "unicode61 remove_diacritics 0"
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);
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CREATE VIRTUAL TABLE IF NOT EXISTS tidal_songs_fts USING fts3(
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CREATE VIRTUAL TABLE IF NOT EXISTS tidal_songs_fts USING fts5(
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ftstitle,
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ftsalbum,
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@ -622,11 +626,11 @@ CREATE VIRTUAL TABLE IF NOT EXISTS tidal_songs_fts USING fts3(
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ftsgrouping,
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ftsgenre,
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ftscomment,
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tokenize=unicode
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tokenize = "unicode61 remove_diacritics 0"
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);
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CREATE VIRTUAL TABLE IF NOT EXISTS subsonic_songs_fts USING fts3(
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CREATE VIRTUAL TABLE IF NOT EXISTS subsonic_songs_fts USING fts5(
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ftstitle,
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ftsalbum,
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@ -637,11 +641,11 @@ CREATE VIRTUAL TABLE IF NOT EXISTS subsonic_songs_fts USING fts3(
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ftsgrouping,
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ftsgenre,
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ftscomment,
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tokenize=unicode
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tokenize = "unicode61 remove_diacritics 0"
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);
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CREATE VIRTUAL TABLE IF NOT EXISTS qobuz_artists_songs_fts USING fts3(
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CREATE VIRTUAL TABLE IF NOT EXISTS qobuz_artists_songs_fts USING fts5(
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ftstitle,
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ftsalbum,
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@ -652,11 +656,11 @@ CREATE VIRTUAL TABLE IF NOT EXISTS qobuz_artists_songs_fts USING fts3(
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ftsgrouping,
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ftsgenre,
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ftscomment,
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tokenize=unicode
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tokenize = "unicode61 remove_diacritics 0"
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);
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CREATE VIRTUAL TABLE IF NOT EXISTS qobuz_albums_songs_fts USING fts3(
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CREATE VIRTUAL TABLE IF NOT EXISTS qobuz_albums_songs_fts USING fts5(
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ftstitle,
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ftsalbum,
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@ -667,11 +671,11 @@ CREATE VIRTUAL TABLE IF NOT EXISTS qobuz_albums_songs_fts USING fts3(
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ftsgrouping,
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ftsgenre,
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ftscomment,
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tokenize=unicode
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tokenize = "unicode61 remove_diacritics 0"
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);
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CREATE VIRTUAL TABLE IF NOT EXISTS qobuz_songs_fts USING fts3(
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CREATE VIRTUAL TABLE IF NOT EXISTS qobuz_songs_fts USING fts5(
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ftstitle,
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ftsalbum,
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@ -682,11 +686,11 @@ CREATE VIRTUAL TABLE IF NOT EXISTS qobuz_songs_fts USING fts3(
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ftsgrouping,
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ftsgenre,
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ftscomment,
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tokenize=unicode
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tokenize = "unicode61 remove_diacritics 0"
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);
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CREATE VIRTUAL TABLE IF NOT EXISTS playlist_items_fts_ USING fts3(
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CREATE VIRTUAL TABLE IF NOT EXISTS playlist_items_fts_ USING fts5(
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ftstitle,
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ftsalbum,
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@ -697,11 +701,11 @@ CREATE VIRTUAL TABLE IF NOT EXISTS playlist_items_fts_ USING fts3(
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ftsgrouping,
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ftsgenre,
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ftscomment,
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tokenize=unicode
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tokenize = "unicode61 remove_diacritics 0"
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);
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CREATE VIRTUAL TABLE IF NOT EXISTS %allsongstables_fts USING fts3(
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CREATE VIRTUAL TABLE IF NOT EXISTS %allsongstables_fts USING fts5(
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ftstitle,
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ftsalbum,
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@ -712,12 +716,6 @@ CREATE VIRTUAL TABLE IF NOT EXISTS %allsongstables_fts USING fts3(
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ftsgrouping,
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ftsgenre,
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ftscomment,
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tokenize=unicode
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tokenize = "unicode61 remove_diacritics 0"
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);
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INSERT INTO songs_fts (ROWID, ftstitle, ftsalbum, ftsartist, ftsalbumartist, ftscomposer, ftsperformer, ftsgrouping, ftsgenre, ftscomment)
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SELECT ROWID, title, album, artist, albumartist, composer, performer, grouping, genre, comment FROM songs;
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INSERT INTO %allsongstables_fts (ROWID, ftstitle, ftsalbum, ftsartist, ftsalbumartist, ftscomposer, ftsperformer, ftsgrouping, ftsgenre, ftscomment)
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SELECT ROWID, title, album, artist, albumartist, composer, performer, grouping, genre, comment FROM %allsongstables;
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@ -44,7 +44,7 @@ BuildRequires: pkgconfig(dbus-1)
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BuildRequires: pkgconfig(gnutls)
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BuildRequires: pkgconfig(alsa)
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BuildRequires: pkgconfig(protobuf)
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BuildRequires: pkgconfig(sqlite3)
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BuildRequires: pkgconfig(sqlite3) >= 3.9
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%if ! 0%{?centos} && ! 0%{?mageia}
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BuildRequires: pkgconfig(taglib)
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%endif
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@ -40,7 +40,7 @@ CollectionQuery::CollectionQuery(const QueryOptions &options)
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: include_unavailable_(false), join_with_fts_(false), limit_(-1) {
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if (!options.filter().isEmpty()) {
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// We need to munge the filter text a little bit to get it to work as expected with sqlite's FTS3:
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// We need to munge the filter text a little bit to get it to work as expected with sqlite's FTS5:
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// 1) Append * to all tokens.
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// 2) Prefix "fts" to column names.
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// 3) Remove colons which don't correspond to column names.
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@ -41,6 +41,7 @@
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#include <QSqlDriver>
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#include <QSqlDatabase>
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#include <QSqlQuery>
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#include <QSqlResult>
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#include <QSqlError>
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#include <QStandardPaths>
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#include <QtDebug>
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@ -52,177 +53,12 @@
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#include "scopedtransaction.h"
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const char *Database::kDatabaseFilename = "strawberry.db";
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const int Database::kSchemaVersion = 8;
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const int Database::kSchemaVersion = 9;
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const char *Database::kMagicAllSongsTables = "%allsongstables";
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int Database::sNextConnectionId = 1;
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QMutex Database::sNextConnectionIdMutex;
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Database::Token::Token(const QString &token, int start, int end)
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: token(token), start_offset(start), end_offset(end) {}
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struct sqlite3_tokenizer_module {
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int iVersion;
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int (*xCreate)(int argc, /* Size of argv array */
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const char *const *argv, /* Tokenizer argument strings */
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sqlite3_tokenizer** ppTokenizer); /* OUT: Created tokenizer */
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int (*xDestroy)(sqlite3_tokenizer *pTokenizer);
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int (*xOpen)(
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sqlite3_tokenizer *pTokenizer, /* Tokenizer object */
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const char *pInput, int nBytes, /* Input buffer */
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sqlite3_tokenizer_cursor **ppCursor /* OUT: Created tokenizer cursor */
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);
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int (*xClose)(sqlite3_tokenizer_cursor *pCursor);
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int (*xNext)(
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sqlite3_tokenizer_cursor *pCursor, /* Tokenizer cursor */
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const char* *ppToken, int *pnBytes, /* OUT: Normalized text for token */
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int *piStartOffset, /* OUT: Byte offset of token in input buffer */
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int *piEndOffset, /* OUT: Byte offset of end of token in input buffer */
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int *piPosition); /* OUT: Number of tokens returned before this one */
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};
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struct sqlite3_tokenizer {
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const sqlite3_tokenizer_module *pModule; /* The module for this tokenizer */
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/* Tokenizer implementations will typically add additional fields */
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};
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struct sqlite3_tokenizer_cursor {
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sqlite3_tokenizer *pTokenizer; /* Tokenizer for this cursor. */
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/* Tokenizer implementations will typically add additional fields */
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};
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sqlite3_tokenizer_module *Database::sFTSTokenizer = nullptr;
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int Database::FTSCreate(int argc, const char *const *argv, sqlite3_tokenizer **tokenizer) {
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*tokenizer = reinterpret_cast<sqlite3_tokenizer*>(new UnicodeTokenizer);
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return SQLITE_OK;
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}
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int Database::FTSDestroy(sqlite3_tokenizer *tokenizer) {
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UnicodeTokenizer *real_tokenizer = reinterpret_cast<UnicodeTokenizer*>(tokenizer);
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delete real_tokenizer;
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return SQLITE_OK;
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}
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int Database::FTSOpen(sqlite3_tokenizer *pTokenizer, const char *input, int bytes, sqlite3_tokenizer_cursor **cursor) {
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UnicodeTokenizerCursor *new_cursor = new UnicodeTokenizerCursor;
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new_cursor->pTokenizer = pTokenizer;
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new_cursor->position = 0;
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QString str = QString::fromUtf8(input, bytes).toLower();
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QChar *data = str.data();
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// Decompose and strip punctuation.
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QList<Token> tokens;
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QString token;
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int start_offset = 0;
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int offset = 0;
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for (int i = 0; i < str.length(); ++i) {
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QChar c = data[i];
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ushort unicode = c.unicode();
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if (unicode <= 0x007f) {
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offset += 1;
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}
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else if (unicode >= 0x0080 && unicode <= 0x07ff) {
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offset += 2;
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}
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else if (unicode >= 0x0800) {
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offset += 3;
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}
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// Unicode astral planes unsupported in Qt?
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/*else if (unicode >= 0x010000 && unicode <= 0x10ffff) {
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offset += 4;
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}*/
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if (!data[i].isLetterOrNumber()) {
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// Token finished.
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if (token.length() != 0) {
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tokens << Token(token, start_offset, offset - 1);
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start_offset = offset;
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token.clear();
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}
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else {
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++start_offset;
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}
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}
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else {
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if (data[i].decompositionTag() != QChar::NoDecomposition) {
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token.push_back(data[i].decomposition()[0]);
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} else {
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token.push_back(data[i]);
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}
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}
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if (i == str.length() - 1) {
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if (token.length() != 0) {
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tokens << Token(token, start_offset, offset);
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token.clear();
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}
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}
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}
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new_cursor->tokens = tokens;
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*cursor = reinterpret_cast<sqlite3_tokenizer_cursor*>(new_cursor);
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return SQLITE_OK;
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}
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int Database::FTSClose(sqlite3_tokenizer_cursor *cursor) {
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UnicodeTokenizerCursor *real_cursor = reinterpret_cast<UnicodeTokenizerCursor*>(cursor);
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delete real_cursor;
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return SQLITE_OK;
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}
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int Database::FTSNext(sqlite3_tokenizer_cursor *cursor, const char* *token, int *bytes, int *start_offset, int *end_offset, int *position) {
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UnicodeTokenizerCursor *real_cursor = reinterpret_cast<UnicodeTokenizerCursor*>(cursor);
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QList<Token> tokens = real_cursor->tokens;
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if (real_cursor->position >= tokens.size()) {
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return SQLITE_DONE;
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}
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Token t = tokens[real_cursor->position];
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QByteArray utf8 = t.token.toUtf8();
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*token = utf8.constData();
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*bytes = utf8.size();
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*start_offset = t.start_offset;
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*end_offset = t.end_offset;
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*position = real_cursor->position++;
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real_cursor->current_utf8 = utf8;
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return SQLITE_OK;
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}
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void Database::StaticInit() {
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if (sFTSTokenizer) return;
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sFTSTokenizer = new sqlite3_tokenizer_module;
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sFTSTokenizer->iVersion = 0;
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sFTSTokenizer->xCreate = &Database::FTSCreate;
|
||||
sFTSTokenizer->xDestroy = &Database::FTSDestroy;
|
||||
sFTSTokenizer->xOpen = &Database::FTSOpen;
|
||||
sFTSTokenizer->xNext = &Database::FTSNext;
|
||||
sFTSTokenizer->xClose = &Database::FTSClose;
|
||||
return;
|
||||
|
||||
}
|
||||
|
||||
Database::Database(Application *app, QObject *parent, const QString &database_name) :
|
||||
QObject(parent),
|
||||
app_(app),
|
||||
|
@ -254,9 +90,6 @@ Database::~Database() {
|
|||
qLog(Error) << "Connection" << connection_id << "is still open!";
|
||||
}
|
||||
|
||||
if (sFTSTokenizer)
|
||||
delete sFTSTokenizer;
|
||||
|
||||
}
|
||||
|
||||
void Database::ExitAsync() {
|
||||
|
@ -308,14 +141,14 @@ QSqlDatabase Database::Connect() {
|
|||
return db;
|
||||
}
|
||||
|
||||
// Find Sqlite3 functions in the Qt plugin.
|
||||
if (!sFTSTokenizer) StaticInit();
|
||||
|
||||
{
|
||||
if (db.tables().count() == 0) {
|
||||
// Set up initial schema
|
||||
qLog(Info) << "Creating initial database schema";
|
||||
UpdateDatabaseSchema(0, db);
|
||||
}
|
||||
|
||||
else if (SchemaVersion(&db) <= 8) { // Register unicode from unicode61 tokenizer to drop old FTS3 tables.
|
||||
#ifdef SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER
|
||||
// In case sqlite>=3.12 is compiled without -DSQLITE_ENABLE_FTS3_TOKENIZER
|
||||
// (generally a good idea due to security reasons) the fts3 support should be enabled explicitly.
|
||||
QVariant v = db.driver()->handle();
|
||||
if (v.isValid() && qstrcmp(v.typeName(), "sqlite3*") == 0) {
|
||||
sqlite3 *handle = *static_cast<sqlite3**>(v.data());
|
||||
|
@ -326,20 +159,21 @@ QSqlDatabase Database::Connect() {
|
|||
else qLog(Fatal) << "Unable to enable FTS3 tokenizer";
|
||||
}
|
||||
#endif
|
||||
QSqlQuery set_fts_tokenizer(db);
|
||||
set_fts_tokenizer.prepare("SELECT fts3_tokenizer(:name, :pointer)");
|
||||
set_fts_tokenizer.bindValue(":name", "unicode");
|
||||
set_fts_tokenizer.bindValue(":pointer", QByteArray(reinterpret_cast<const char*>(&sFTSTokenizer), sizeof(&sFTSTokenizer)));
|
||||
if (!set_fts_tokenizer.exec()) {
|
||||
qLog(Warning) << "Couldn't register FTS3 tokenizer : " << set_fts_tokenizer.lastError();
|
||||
QSqlQuery get_fts_tokenizer(db);
|
||||
get_fts_tokenizer.prepare("SELECT fts3_tokenizer(:name)");
|
||||
get_fts_tokenizer.bindValue(":name", "unicode61");
|
||||
if (get_fts_tokenizer.exec() && get_fts_tokenizer.next()) {
|
||||
QSqlQuery set_fts_tokenizer(db);
|
||||
set_fts_tokenizer.prepare("SELECT fts3_tokenizer(:name, :pointer)");
|
||||
set_fts_tokenizer.bindValue(":name", "unicode");
|
||||
set_fts_tokenizer.bindValue(":pointer", get_fts_tokenizer.value(0));
|
||||
if (!set_fts_tokenizer.exec()) {
|
||||
qLog(Warning) << "Couldn't register FTS3 tokenizer : " << set_fts_tokenizer.lastError();
|
||||
}
|
||||
}
|
||||
else {
|
||||
qLog(Warning) << "Couldn't get FTS3 tokenizer : " << get_fts_tokenizer.lastError();
|
||||
}
|
||||
// Implicit invocation of ~QSqlQuery() when leaving the scope to release any remaining database locks!
|
||||
}
|
||||
|
||||
if (db.tables().count() == 0) {
|
||||
// Set up initial schema
|
||||
qLog(Info) << "Creating initial database schema";
|
||||
UpdateDatabaseSchema(0, db);
|
||||
}
|
||||
|
||||
// Attach external databases
|
||||
|
@ -399,7 +233,7 @@ void Database::Close() {
|
|||
|
||||
}
|
||||
|
||||
void Database::UpdateMainSchema(QSqlDatabase *db) {
|
||||
int Database::SchemaVersion(QSqlDatabase *db) {
|
||||
|
||||
// Get the database's schema version
|
||||
int schema_version = 0;
|
||||
|
@ -408,7 +242,13 @@ void Database::UpdateMainSchema(QSqlDatabase *db) {
|
|||
if (q.next()) schema_version = q.value(0).toInt();
|
||||
// Implicit invocation of ~QSqlQuery() when leaving the scope to release any remaining database locks!
|
||||
}
|
||||
return schema_version;
|
||||
|
||||
}
|
||||
|
||||
void Database::UpdateMainSchema(QSqlDatabase *db) {
|
||||
|
||||
int schema_version = SchemaVersion(db);
|
||||
startup_schema_version_ = schema_version;
|
||||
|
||||
if (schema_version > kSchemaVersion) {
|
||||
|
@ -591,6 +431,7 @@ void Database::ExecSongTablesCommands(QSqlDatabase &db, const QStringList &song_
|
|||
if (CheckErrors(query)) qFatal("Unable to update music collection database");
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
QStringList Database::SongsTables(QSqlDatabase &db, int schema_version) const {
|
||||
|
@ -745,4 +586,3 @@ void Database::BackupFile(const QString &filename) {
|
|||
sqlite3_backup_finish(backup);
|
||||
|
||||
}
|
||||
|
||||
|
|
|
@ -37,13 +37,6 @@
|
|||
#include <QString>
|
||||
#include <QStringList>
|
||||
|
||||
extern "C" {
|
||||
|
||||
struct sqlite3_tokenizer;
|
||||
struct sqlite3_tokenizer_cursor;
|
||||
struct sqlite3_tokenizer_module;
|
||||
}
|
||||
|
||||
class QThread;
|
||||
class Application;
|
||||
|
||||
|
@ -95,6 +88,7 @@ class Database : public QObject {
|
|||
void DoBackup();
|
||||
|
||||
private:
|
||||
int SchemaVersion(QSqlDatabase *db);
|
||||
void UpdateMainSchema(QSqlDatabase *db);
|
||||
|
||||
void ExecSchemaCommandsFromFile(QSqlDatabase &db, const QString &filename, int schema_version, bool in_transaction = false);
|
||||
|
@ -133,38 +127,6 @@ class Database : public QObject {
|
|||
|
||||
QThread *original_thread_;
|
||||
|
||||
// Do static initialisation like loading sqlite functions.
|
||||
static void StaticInit();
|
||||
|
||||
typedef int (*Sqlite3CreateFunc)(sqlite3*, const char*, int, int, void*, void (*)(sqlite3_context*, int, sqlite3_value**), void (*)(sqlite3_context*, int, sqlite3_value**), void (*)(sqlite3_context*));
|
||||
|
||||
static sqlite3_tokenizer_module *sFTSTokenizer;
|
||||
|
||||
static int FTSCreate(int argc, const char *const *argv, sqlite3_tokenizer **tokenizer);
|
||||
static int FTSDestroy(sqlite3_tokenizer *tokenizer);
|
||||
static int FTSOpen(sqlite3_tokenizer *tokenizer, const char *input, int bytes, sqlite3_tokenizer_cursor **cursor);
|
||||
static int FTSClose(sqlite3_tokenizer_cursor *cursor);
|
||||
static int FTSNext(sqlite3_tokenizer_cursor *cursor, const char **token, int *bytes, int *start_offset, int *end_offset, int *position);
|
||||
|
||||
struct Token {
|
||||
Token(const QString &token, int start, int end);
|
||||
QString token;
|
||||
int start_offset;
|
||||
int end_offset;
|
||||
};
|
||||
|
||||
// Based on sqlite3_tokenizer.
|
||||
struct UnicodeTokenizer {
|
||||
const sqlite3_tokenizer_module *pModule;
|
||||
};
|
||||
|
||||
struct UnicodeTokenizerCursor {
|
||||
const sqlite3_tokenizer *pTokenizer;
|
||||
|
||||
QList<Token> tokens;
|
||||
int position;
|
||||
QByteArray current_utf8;
|
||||
};
|
||||
};
|
||||
|
||||
class MemoryDatabase : public Database {
|
||||
|
@ -178,4 +140,3 @@ class MemoryDatabase : public Database {
|
|||
};
|
||||
|
||||
#endif // DATABASE_H
|
||||
|
||||
|
|
Loading…
Reference in New Issue