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Code Issues Releases Wiki Activity

books db update: uids table, book labels instead of favorites

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This commit is contained in:
Nikolay Pultsin 2013-03-09 07:19:51 +04:00
parent e1782113f5
commit c42954830c
1 changed files with 40 additions and 6 deletions
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46
src/org/geometerplus/android/fbreader/libraryService/SQLiteBooksDatabase.java
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@ -77,7 +77,7 @@ final class SQLiteBooksDatabase extends BooksDatabase {
private void migrate() {
final int version = myDatabase.getVersion();
final int currentVersion = 20;
final int currentVersion = 21;
if (version >= currentVersion) {
return;
}
@ -125,6 +125,8 @@ final class SQLiteBooksDatabase extends BooksDatabase {
updateTables18();
case 19:
updateTables19();
case 20:
updateTables20();
}
myDatabase.setTransactionSuccessful();
myDatabase.setVersion(currentVersion);
@ -683,7 +685,9 @@ final class SQLiteBooksDatabase extends BooksDatabase {
protected boolean hasFavorites() {
final Cursor cursor = myDatabase.rawQuery(
"SELECT book_id FROM Favorites LIMIT 1", null
"SELECT BookLabel.book_id FROM BookLabel" +
" INNER JOIN Labels ON BookLabel.label_id=Labels.label_id" +
" WHERE Labels.name='favorite' LIMIT 1", null
);
boolean result = cursor.moveToNext();
cursor.close();
@ -692,7 +696,9 @@ final class SQLiteBooksDatabase extends BooksDatabase {
protected boolean isFavorite(long bookId) {
final Cursor cursor = myDatabase.rawQuery(
"SELECT book_id FROM Favorites WHERE book_id = ? LIMIT 1",
"SELECT BookLabel.book_id FROM BookLabel" +
" INNER JOIN Labels ON BookLabel.label_id=Labels.label_id" +
" WHERE BookLabel.book_id=? AND Labels.name='favorite' LIMIT 1",
new String[] { String.valueOf(bookId) }
);
boolean result = cursor.moveToNext();
@ -702,9 +708,11 @@ final class SQLiteBooksDatabase extends BooksDatabase {
private SQLiteStatement myAddToFavoritesStatement;
protected void addToFavorites(long bookId) {
myDatabase.execSQL("INSERT OR IGNORE INTO Labels (name) VALUES ('favorite')");
if (myAddToFavoritesStatement == null) {
myAddToFavoritesStatement = myDatabase.compileStatement(
"INSERT OR IGNORE INTO Favorites(book_id) VALUES (?)"
"INSERT OR IGNORE INTO BookLabel(label_id,book_id)" +
" SELECT label_id,? FROM Labels WHERE name='favorite'"
);
}
myAddToFavoritesStatement.bindLong(1, bookId);
@ -715,7 +723,8 @@ final class SQLiteBooksDatabase extends BooksDatabase {
protected void removeFromFavorites(long bookId) {
if (myRemoveFromFavoritesStatement == null) {
myRemoveFromFavoritesStatement = myDatabase.compileStatement(
"DELETE FROM Favorites WHERE book_id = ?"
"DELETE FROM BookLabel WHERE book_id=? AND label_id IN" +
" (SELECT label_id FROM Labels WHERE name='favorite')"
);
}
myRemoveFromFavoritesStatement.bindLong(1, bookId);
@ -724,7 +733,9 @@ final class SQLiteBooksDatabase extends BooksDatabase {
protected List<Long> loadFavoriteIds() {
final Cursor cursor = myDatabase.rawQuery(
"SELECT book_id FROM Favorites", null
"SELECT BookLabel.book_id FROM BookLabel" +
" INNER JOIN Labels ON BookLabel.label_id=Labels.label_id" +
" WHERE Labels.name='favorite'", null
);
final LinkedList<Long> ids = new LinkedList<Long>();
while (cursor.moveToNext()) {
@ -1295,4 +1306,27 @@ final class SQLiteBooksDatabase extends BooksDatabase {
private void updateTables19() {
myDatabase.execSQL("DROP TABLE BookList");
}
private void updateTables20() {
myDatabase.execSQL(
"CREATE TABLE IF NOT EXISTS BookUid(" +
"book_id INTEGER NOT NULL UNIQUE REFERENCES Books(book_id)," +
"type TEXT NOT NULL," +
"uid TEXT NOT NULL)");
myDatabase.execSQL(
"CREATE TABLE IF NOT EXISTS Labels(" +
"label_id INTEGER PRIMARY KEY," +
"name TEXT NOT NULL UNIQUE)");
myDatabase.execSQL(
"CREATE TABLE IF NOT EXISTS BookLabel(" +
"label_id INTEGER NOT NULL REFERENCES Labels(label_id)," +
"book_id INTEGER NOT NULL REFERENCES Books(book_id)," +
"CONSTRAINT BookLabel_Unique UNIQUE (label_id,book_id))");
final SQLiteStatement insert = myDatabase.compileStatement(
"INSERT INTO Labels (name) VALUES ('favorite')"
);
final long id = insert.executeInsert();
myDatabase.execSQL("INSERT INTO BookLabel (label_id,book_id) SELECT " + id + ",book_id FROM Favorites");
myDatabase.execSQL("DROP TABLE Favorites");
}
}