update DB to 20180416

This adds name_sort to our playlist code

app/src/main/java/ch/blinkenlights/android/medialibrary/MediaLibrary.java

@@ -360,6 +360,7 @@ public class MediaLibrary  {
 		ContentValues v = new ContentValues();
 		v.put(MediaLibrary.PlaylistColumns._ID, hash63(name));
 		v.put(MediaLibrary.PlaylistColumns.NAME, name);
+		v.put(MediaLibrary.PlaylistColumns.NAME_SORT, keyFor(name));
 		long id = getBackend(context).insert(MediaLibrary.TABLE_PLAYLISTS, null, v);
 
 		if (id != -1)
@@ -747,6 +748,10 @@ public class MediaLibrary  {
 		 * The name of this playlist
 		 */
 		 String NAME = "name";
+		/**
+		 * Sortable column for name
+		 */
+		String NAME_SORT = "name_sort";
 	}
 
 	// Song <-> Playlist mapping

app/src/main/java/ch/blinkenlights/android/medialibrary/MediaLibraryBackend.java

@@ -35,7 +35,7 @@ public class MediaLibraryBackend extends SQLiteOpenHelper {
 	/**
 	 * The database version we are using
 	 */
-	private static final int DATABASE_VERSION = 20180305;
+	private static final int DATABASE_VERSION = 20180416;
 	/**
 	 * on-disk file to store the database
 	 */

app/src/main/java/ch/blinkenlights/android/medialibrary/MediaMigrations.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2018 Adrian Ulrich <adrian@blinkenlights.ch>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. 
+ */
+
+package ch.blinkenlights.android.medialibrary;
+
+import android.content.ContentValues;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.Cursor;
+import android.util.Log;
+
+
+public class MediaMigrations {
+	/**
+	 * Migrate to 20180416
+	 * That is: populate NAME_SORT in the new source database
+	 *
+	 * @param dbh the database to work on
+	 * @param fromDb the name of the source database
+	 * @param toDb the name of the target database
+	 **/
+	static void migrate_to_20180416(SQLiteDatabase dbh, String fromDb, String toDb) {
+		Cursor cursor = dbh.query(fromDb, new String[]{MediaLibrary.PlaylistColumns._ID, MediaLibrary.PlaylistColumns.NAME}, null, null, null, null, null);
+		while (cursor.moveToNext()) {
+			long id = cursor.getLong(0);
+			String name = cursor.getString(1);
+			String key = MediaLibrary.keyFor(name);
+
+			Log.v("VanillaMusic", "migrate_to_20180416 -> id="+id+", name="+name+" -> key = "+key);
+			ContentValues v = new ContentValues();
+			v.put(MediaLibrary.PlaylistColumns._ID, id);
+			v.put(MediaLibrary.PlaylistColumns.NAME, name);
+			v.put(MediaLibrary.PlaylistColumns.NAME_SORT, key);
+			dbh.insert(toDb, null, v);
+		}
+		cursor.close();
+	}
+
+}

app/src/main/java/ch/blinkenlights/android/medialibrary/MediaSchema.java

@@ -105,7 +105,8 @@ public class MediaSchema {
 	 */
 	private static final String DATABASE_CREATE_PLAYLISTS = "CREATE TABLE "+ MediaLibrary.TABLE_PLAYLISTS +" ("
 	  + MediaLibrary.PlaylistColumns._ID       +" INTEGER PRIMARY KEY, "
-	  + MediaLibrary.PlaylistColumns.NAME  +" TEXT NOT NULL "
+	  + MediaLibrary.PlaylistColumns.NAME      +" TEXT NOT NULL, "
+	  + MediaLibrary.PlaylistColumns.NAME_SORT +" TEXT NOT NULL "
 	  + ");";
 
 	/**
@@ -331,6 +332,14 @@ public class MediaSchema {
 			dbh.execSQL("ALTER TABLE "+MediaLibrary.TABLE_SONGS+" ADD COLUMN "+MediaLibrary.SongColumns.FLAGS+" INTEGER NOT NULL DEFAULT 0 ");
 		}
 
+		if (oldVersion < 20180416) {
+			// This adds NAME_SORT, so we need to pre-populate all keys.
+			dbh.execSQL("ALTER TABLE "+MediaLibrary.TABLE_PLAYLISTS+" RENAME TO _migrate");
+			dbh.execSQL(MediaSchema.DATABASE_CREATE_PLAYLISTS);
+			MediaMigrations.migrate_to_20180416(dbh, "_migrate", MediaLibrary.TABLE_PLAYLISTS);
+			dbh.execSQL("DROP TABLE _migrate");
+		}
+
 	}
 
 }

app/src/main/java/ch/blinkenlights/android/vanilla/MediaAdapter.java

@@ -35,6 +35,7 @@ import android.provider.MediaStore;
 import android.text.Spannable;
 import android.text.SpannableStringBuilder;
 import android.text.style.ForegroundColorSpan;
+import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -222,7 +223,7 @@ public class MediaAdapter
 		case MediaUtils.TYPE_PLAYLIST:
 			mSource = MediaLibrary.TABLE_PLAYLISTS;
 			mFields = new String[] { MediaLibrary.PlaylistColumns.NAME };
-			mFieldKeys = null;
+			mFieldKeys = new String[] { MediaLibrary.PlaylistColumns.NAME_SORT };
 			mSortEntries = new int[] { R.string.title, R.string.date_added };
 			mAdapterSortValues = new String[] { MediaLibrary.PlaylistColumns.NAME+" %1$s", MediaLibrary.PlaylistColumns._ID+" %1$s" };
 			mExpandable = true;
@@ -318,19 +319,10 @@ public class MediaAdapter
 
 		// include the constraint (aka: search string) if any
 		if (constraint != null && constraint.length() != 0) {
-			String[] needles;
-			String[] keySource;
-
-			if (mFieldKeys != null) {
 			String colKey = MediaLibrary.keyFor(constraint);
 			String spaceColKey = DatabaseUtils.getCollationKey(" ");
-				needles = colKey.split(spaceColKey);
-				keySource = mFieldKeys;
-			} else {
-				// only used for playlists, maybe we should just update the schema ?
-				needles = SPACE_SPLIT.split(constraint);
-				keySource = mFields;
-			}
+			String[] needles = colKey.split(spaceColKey);
+			String[] keySource = mFieldKeys;
 
 			int size = needles.length;
 			selectionArgs = new String[size];