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The source code is released under:
GNU General Public License
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/** * RssReader/*from www. ja v a 2 s . co m*/ * * Copyright (c) 2013-2014 teejoe * * 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/>. * * * Some parts of this software are based on "Sparse rss" under the MIT license (see * below). Please refers to the original project to identify which parts are under the * MIT license. * * Copyright (c) 2010-2012 Stefan Handschuh * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package org.m2x.rssreader.provider; import org.m2x.rssreader.Constants; import org.m2x.rssreader.provider.FeedData.EntryColumns; import org.m2x.rssreader.provider.FeedData.FeedColumns; import org.m2x.rssreader.provider.FeedData.FilterColumns; import org.m2x.rssreader.provider.FeedData.TaskColumns; import org.m2x.rssreader.util.NetworkUtils; import android.content.ContentProvider; import android.content.ContentResolver; import android.content.ContentUris; import android.content.ContentValues; import android.content.UriMatcher; import android.database.Cursor; import android.database.DatabaseUtils; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteQueryBuilder; import android.net.Uri; import android.os.Handler; import android.text.TextUtils; public class FeedDataProvider extends ContentProvider { public static final int URI_GROUPED_FEEDS = 1; public static final int URI_GROUPS = 2; public static final int URI_GROUP = 3; public static final int URI_FEEDS_FOR_GROUPS = 4; public static final int URI_FEEDS = 5; public static final int URI_FEED = 6; public static final int URI_FILTERS = 7; public static final int URI_FILTERS_FOR_FEED = 8; public static final int URI_ENTRIES_FOR_FEED = 9; public static final int URI_ENTRY_FOR_FEED = 10; public static final int URI_ENTRIES_FOR_GROUP = 11; public static final int URI_ENTRY_FOR_GROUP = 12; public static final int URI_ENTRIES = 13; public static final int URI_ENTRY = 14; public static final int URI_ALL_ENTRIES = 15; public static final int URI_ALL_ENTRIES_ENTRY = 16; public static final int URI_FAVORITES = 17; public static final int URI_FAVORITES_ENTRY = 18; public static final int URI_TASKS = 19; public static final int URI_TASK = 20; public static final int URI_SEARCH = 21; public static final int URI_SEARCH_ENTRY = 22; public static final UriMatcher URI_MATCHER = new UriMatcher(UriMatcher.NO_MATCH); static { URI_MATCHER.addURI(FeedData.AUTHORITY, "grouped_feeds", URI_GROUPED_FEEDS); URI_MATCHER.addURI(FeedData.AUTHORITY, "groups", URI_GROUPS); URI_MATCHER.addURI(FeedData.AUTHORITY, "groups/#", URI_GROUP); URI_MATCHER.addURI(FeedData.AUTHORITY, "groups/#/feeds", URI_FEEDS_FOR_GROUPS); URI_MATCHER.addURI(FeedData.AUTHORITY, "feeds", URI_FEEDS); URI_MATCHER.addURI(FeedData.AUTHORITY, "feeds/#", URI_FEED); URI_MATCHER.addURI(FeedData.AUTHORITY, "feeds/#/entries", URI_ENTRIES_FOR_FEED); URI_MATCHER.addURI(FeedData.AUTHORITY, "feeds/#/entries/#", URI_ENTRY_FOR_FEED); URI_MATCHER.addURI(FeedData.AUTHORITY, "groups/#/entries", URI_ENTRIES_FOR_GROUP); URI_MATCHER.addURI(FeedData.AUTHORITY, "groups/#/entries/#", URI_ENTRY_FOR_GROUP); URI_MATCHER.addURI(FeedData.AUTHORITY, "filters", URI_FILTERS); URI_MATCHER.addURI(FeedData.AUTHORITY, "feeds/#/filters", URI_FILTERS_FOR_FEED); URI_MATCHER.addURI(FeedData.AUTHORITY, "entries", URI_ENTRIES); URI_MATCHER.addURI(FeedData.AUTHORITY, "entries/#", URI_ENTRY); URI_MATCHER.addURI(FeedData.AUTHORITY, "all_entries", URI_ALL_ENTRIES); URI_MATCHER.addURI(FeedData.AUTHORITY, "all_entries/#", URI_ALL_ENTRIES_ENTRY); URI_MATCHER.addURI(FeedData.AUTHORITY, "favorites", URI_FAVORITES); URI_MATCHER.addURI(FeedData.AUTHORITY, "favorites/#", URI_FAVORITES_ENTRY); URI_MATCHER.addURI(FeedData.AUTHORITY, "tasks", URI_TASKS); URI_MATCHER.addURI(FeedData.AUTHORITY, "tasks/#", URI_TASK); URI_MATCHER.addURI(FeedData.AUTHORITY, "entries/search/*", URI_SEARCH); URI_MATCHER.addURI(FeedData.AUTHORITY, "entries/search/*/#", URI_SEARCH_ENTRY); } private DatabaseHelper mDatabaseHelper; @Override public String getType(Uri uri) { int matchCode = URI_MATCHER.match(uri); switch (matchCode) { case URI_GROUPED_FEEDS: case URI_GROUPS: case URI_FEEDS_FOR_GROUPS: case URI_FEEDS: return "vnd.android.cursor.dir/vnd.feedex.feed"; case URI_GROUP: case URI_FEED: return "vnd.android.cursor.item/vnd.feedex.feed"; case URI_FILTERS: case URI_FILTERS_FOR_FEED: return "vnd.android.cursor.dir/vnd.feedex.filter"; case URI_FAVORITES: case URI_ALL_ENTRIES: case URI_ENTRIES: case URI_ENTRIES_FOR_FEED: case URI_ENTRIES_FOR_GROUP: case URI_SEARCH: return "vnd.android.cursor.dir/vnd.feedex.entry"; case URI_FAVORITES_ENTRY: case URI_ENTRY: case URI_ALL_ENTRIES_ENTRY: case URI_ENTRY_FOR_FEED: case URI_ENTRY_FOR_GROUP: case URI_SEARCH_ENTRY: return "vnd.android.cursor.item/vnd.feedex.entry"; case URI_TASKS: return "vnd.android.cursor.dir/vnd.feedex.task"; case URI_TASK: return "vnd.android.cursor.item/vnd.feedex.task"; default: throw new IllegalArgumentException("Unknown URI: " + uri); } } @Override public boolean onCreate() { mDatabaseHelper = new DatabaseHelper(new Handler(), getContext()); return true; } @Override public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { SQLiteQueryBuilder queryBuilder = new SQLiteQueryBuilder(); int matchCode = URI_MATCHER.match(uri); if ((matchCode == URI_FEEDS || matchCode == URI_GROUPS || matchCode == URI_FEEDS_FOR_GROUPS) && sortOrder == null) { sortOrder = FeedColumns.PRIORITY; } switch (matchCode) { case URI_GROUPED_FEEDS: { queryBuilder.setTables(FeedData.FEEDS_TABLE_WITH_GROUP_PRIORITY); sortOrder = "IFNULL(group_priority, " + FeedColumns.PRIORITY + "), " + "IFNULL(" + FeedColumns.GROUP_ID + ", " + FeedColumns._ID + "), " + FeedColumns.IS_GROUP + " DESC, " + FeedColumns.PRIORITY; break; } case URI_GROUPS: { queryBuilder.setTables(FeedColumns.TABLE_NAME); queryBuilder.appendWhere(new StringBuilder(FeedColumns.IS_GROUP) .append(Constants.DB_IS_TRUE).append(Constants.DB_OR) .append(FeedColumns.GROUP_ID).append(Constants.DB_IS_NULL)); break; } case URI_FEEDS_FOR_GROUPS: { queryBuilder.setTables(FeedColumns.TABLE_NAME); queryBuilder.appendWhere(new StringBuilder(FeedColumns.GROUP_ID).append('=') .append(uri.getPathSegments().get(1))); break; } case URI_GROUP: case URI_FEED: { queryBuilder.setTables(FeedColumns.TABLE_NAME); queryBuilder.appendWhere(new StringBuilder(FeedColumns._ID).append('=') .append(uri.getPathSegments().get(1))); break; } case URI_FEEDS: { queryBuilder.setTables(FeedColumns.TABLE_NAME); queryBuilder.appendWhere(new StringBuilder(FeedColumns.IS_GROUP) .append(Constants.DB_IS_NULL)); break; } case URI_FILTERS: { queryBuilder.setTables(FilterColumns.TABLE_NAME); break; } case URI_FILTERS_FOR_FEED: { queryBuilder.setTables(FilterColumns.TABLE_NAME); queryBuilder.appendWhere(new StringBuilder(FilterColumns.FEED_ID).append('=') .append(uri.getPathSegments().get(1))); break; } case URI_ENTRY_FOR_FEED: case URI_ENTRY_FOR_GROUP: case URI_SEARCH_ENTRY: { queryBuilder.setTables(FeedData.ENTRIES_TABLE_WITH_FEED_INFO); queryBuilder.appendWhere(new StringBuilder(EntryColumns._ID).append('=') .append(uri.getPathSegments().get(3))); break; } case URI_ENTRIES_FOR_FEED: { //queryBuilder.setTables(EntryColumns.TABLE_NAME); queryBuilder.setTables(FeedData.ENTRIES_TABLE_WITH_FEED_INFO); queryBuilder.appendWhere(new StringBuilder(EntryColumns.FEED_ID).append('=') .append(uri.getPathSegments().get(1))); break; } case URI_ENTRIES_FOR_GROUP: { queryBuilder.setTables(FeedData.ENTRIES_TABLE_WITH_FEED_INFO); queryBuilder.appendWhere(new StringBuilder(FeedColumns.GROUP_ID).append('=') .append(uri.getPathSegments().get(1))); break; } case URI_ALL_ENTRIES: case URI_ENTRIES: { queryBuilder.setTables(FeedData.ENTRIES_TABLE_WITH_FEED_INFO); break; } case URI_SEARCH: { queryBuilder.setTables(FeedData.ENTRIES_TABLE_WITH_FEED_INFO); queryBuilder.appendWhere(getSearchWhereClause(uri.getPathSegments().get(2))); break; } case URI_FAVORITES_ENTRY: case URI_ALL_ENTRIES_ENTRY: case URI_ENTRY: { queryBuilder.setTables(FeedData.ENTRIES_TABLE_WITH_FEED_INFO); queryBuilder.appendWhere(new StringBuilder(EntryColumns._ID).append('=') .append(uri.getPathSegments().get(1))); break; } case URI_FAVORITES: { queryBuilder.setTables(FeedData.ENTRIES_TABLE_WITH_FEED_INFO); queryBuilder.appendWhere(new StringBuilder(EntryColumns.IS_FAVORITE) .append(Constants.DB_IS_TRUE)); break; } case URI_TASKS: { queryBuilder.setTables(TaskColumns.TABLE_NAME); break; } case URI_TASK: { queryBuilder.setTables(TaskColumns.TABLE_NAME); queryBuilder.appendWhere(new StringBuilder(EntryColumns._ID).append('=') .append(uri.getPathSegments().get(1))); break; } } SQLiteDatabase database = mDatabaseHelper.getReadableDatabase(); Cursor cursor = queryBuilder.query(database, projection, selection, selectionArgs, null, null, sortOrder); cursor.setNotificationUri(getContext().getContentResolver(), uri); return cursor; } private final String[] MAXPRIORITY = new String[]{"MAX(" + FeedColumns.PRIORITY + ")"}; @Override public Uri insert(Uri uri, ContentValues values) { long newId; int matchCode = URI_MATCHER.match(uri); SQLiteDatabase database = mDatabaseHelper.getWritableDatabase(); switch (matchCode) { case URI_GROUPS: case URI_FEEDS: { Cursor cursor; if (values.containsKey(FeedColumns.GROUP_ID)) { String groupId = values.getAsString(FeedColumns.GROUP_ID); cursor = query(FeedColumns.FEEDS_FOR_GROUPS_CONTENT_URI(groupId), MAXPRIORITY, null, null, null); } else { cursor = query(FeedColumns.GROUPS_CONTENT_URI, MAXPRIORITY, null, null, null); } if (cursor.moveToFirst()) { // normally this is always the case with MAX() values.put(FeedColumns.PRIORITY, cursor.getInt(0) + 1); } else { values.put(FeedColumns.PRIORITY, 1); } cursor.close(); newId = database.insert(FeedColumns.TABLE_NAME, null, values); mDatabaseHelper.exportToOPML(); break; } case URI_FILTERS: { newId = database.insert(FilterColumns.TABLE_NAME, null, values); break; } case URI_FILTERS_FOR_FEED: { values.put(FilterColumns.FEED_ID, uri.getPathSegments().get(1)); newId = database.insert(FilterColumns.TABLE_NAME, null, values); break; } case URI_ENTRIES_FOR_FEED: { values.put(EntryColumns.FEED_ID, uri.getPathSegments().get(1)); newId = database.insert(EntryColumns.TABLE_NAME, null, values); break; } case URI_ALL_ENTRIES: case URI_ENTRIES: { newId = database.insert(EntryColumns.TABLE_NAME, null, values); break; } case URI_TASKS: { newId = database.insert(TaskColumns.TABLE_NAME, null, values); break; } default: throw new IllegalArgumentException("Illegal insert"); } if (newId > -1) { notifyChangeOnAllUris(matchCode, uri); return ContentUris.withAppendedId(uri, newId); } else { // This can happen when an insert failed with "ON CONFLICT IGNORE", this is not an error return uri; } } @Override public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { int matchCode = URI_MATCHER.match(uri); String table = null; StringBuilder where = new StringBuilder(); SQLiteDatabase database = mDatabaseHelper.getWritableDatabase(); switch (matchCode) { case URI_FEED: { table = FeedColumns.TABLE_NAME; long feedId = Long.parseLong(uri.getPathSegments().get(1)); where.append(FeedColumns._ID).append('=').append(feedId); if (values != null && values.containsKey(FeedColumns.PRIORITY)) { Cursor priorityCursor = database.query(FeedColumns.TABLE_NAME, new String[]{FeedColumns.PRIORITY, FeedColumns.GROUP_ID}, FeedColumns._ID + "=" + feedId, null, null, null, null); if (priorityCursor.moveToNext()) { int oldPriority = priorityCursor.getInt(0); String oldGroupId = priorityCursor.getString(1); int newPriority = values.getAsInteger(FeedColumns.PRIORITY); String newGroupId = values.getAsString(FeedColumns.GROUP_ID); priorityCursor.close(); String oldGroupWhere = '(' + (oldGroupId != null ? FeedColumns.GROUP_ID + '=' + oldGroupId : FeedColumns.IS_GROUP + Constants.DB_IS_TRUE + Constants.DB_OR + FeedColumns.GROUP_ID + Constants.DB_IS_NULL) + ')'; // If the group has changed, it is not only a +1 or -1 for priority... if ((oldGroupId == null && newGroupId != null) || (oldGroupId != null && newGroupId == null) || (oldGroupId != null && newGroupId != null && !oldGroupId.equals(newGroupId))) { String priorityValue = FeedColumns.PRIORITY + "-1"; String priorityWhere = FeedColumns.PRIORITY + '>' + oldPriority; database.execSQL("UPDATE " + FeedColumns.TABLE_NAME + " SET " + FeedColumns.PRIORITY + '=' + priorityValue + " WHERE " + oldGroupWhere + Constants.DB_AND + priorityWhere); priorityValue = FeedColumns.PRIORITY + "+1"; priorityWhere = FeedColumns.PRIORITY + '>' + (newPriority - 1); String newGroupWhere = '(' + (newGroupId != null ? FeedColumns.GROUP_ID + '=' + newGroupId : FeedColumns.IS_GROUP + Constants.DB_IS_TRUE + Constants.DB_OR + FeedColumns.GROUP_ID + Constants.DB_IS_NULL) + ')'; database.execSQL("UPDATE " + FeedColumns.TABLE_NAME + " SET " + FeedColumns.PRIORITY + '=' + priorityValue + " WHERE " + newGroupWhere + Constants.DB_AND + priorityWhere); } else { // We move the item into the same group if (newPriority > oldPriority) { String priorityValue = FeedColumns.PRIORITY + "-1"; String priorityWhere = '(' + FeedColumns.PRIORITY + " BETWEEN " + (oldPriority + 1) + " AND " + newPriority + ')'; database.execSQL("UPDATE " + FeedColumns.TABLE_NAME + " SET " + FeedColumns.PRIORITY + '=' + priorityValue + " WHERE " + oldGroupWhere + Constants.DB_AND + priorityWhere); } else if (newPriority < oldPriority) { String priorityValue = FeedColumns.PRIORITY + "+1"; String priorityWhere = '(' + FeedColumns.PRIORITY + " BETWEEN " + newPriority + " AND " + (oldPriority - 1) + ')'; database.execSQL("UPDATE " + FeedColumns.TABLE_NAME + " SET " + FeedColumns.PRIORITY + '=' + priorityValue + " WHERE " + oldGroupWhere + Constants.DB_AND + priorityWhere); } } } else { priorityCursor.close(); } } break; } case URI_GROUPS: case URI_FEEDS_FOR_GROUPS: case URI_FEEDS: { table = FeedColumns.TABLE_NAME; break; } case URI_FILTERS: { table = FilterColumns.TABLE_NAME; break; } case URI_FILTERS_FOR_FEED: { table = FilterColumns.TABLE_NAME; where.append(FilterColumns.FEED_ID).append('=').append(uri.getPathSegments().get(1)); break; } case URI_ENTRY_FOR_FEED: case URI_ENTRY_FOR_GROUP: case URI_SEARCH_ENTRY: { table = EntryColumns.TABLE_NAME; where.append(EntryColumns._ID).append('=').append(uri.getPathSegments().get(3)); break; } case URI_ENTRIES_FOR_FEED: { table = EntryColumns.TABLE_NAME; where.append(EntryColumns.FEED_ID).append('=').append(uri.getPathSegments().get(1)); break; } case URI_ENTRIES_FOR_GROUP: { table = EntryColumns.TABLE_NAME; where.append(EntryColumns.FEED_ID).append(" IN (SELECT ").append(FeedColumns._ID) .append(" FROM ").append(FeedColumns.TABLE_NAME).append(" WHERE ") .append(FeedColumns.GROUP_ID).append('=').append(uri.getPathSegments() .get(1)).append(')'); break; } case URI_ALL_ENTRIES: case URI_ENTRIES: { table = EntryColumns.TABLE_NAME; break; } case URI_SEARCH: { table = EntryColumns.TABLE_NAME; where.append(getSearchWhereClause(uri.getPathSegments().get(2))); break; } case URI_FAVORITES_ENTRY: case URI_ALL_ENTRIES_ENTRY: case URI_ENTRY: { table = EntryColumns.TABLE_NAME; where.append(EntryColumns._ID).append('=').append(uri.getPathSegments().get(1)); break; } case URI_FAVORITES: { table = EntryColumns.TABLE_NAME; where.append(EntryColumns.IS_FAVORITE).append(Constants.DB_IS_TRUE); break; } case URI_TASKS: { table = TaskColumns.TABLE_NAME; break; } case URI_TASK: { table = TaskColumns.TABLE_NAME; where.append(TaskColumns._ID).append('=').append(uri.getPathSegments().get(1)); break; } } if (!TextUtils.isEmpty(selection)) { if (where.length() > 0) { where.append(Constants.DB_AND).append(selection); } else { where.append(selection); } } int count = database.update(table, values, where.toString(), selectionArgs); if (FeedColumns.TABLE_NAME.equals(table) && (values.containsKey(FeedColumns.NAME) || values.containsKey(FeedColumns.URL) || values.containsKey(FeedColumns.PRIORITY))) { mDatabaseHelper.exportToOPML(); } if (count > 0) { notifyChangeOnAllUris(matchCode, uri); } return count; } @Override public int delete(Uri uri, String selection, String[] selectionArgs) { int matchCode = URI_MATCHER.match(uri); String table = null; StringBuilder where = new StringBuilder(); SQLiteDatabase database = mDatabaseHelper.getWritableDatabase(); switch (matchCode) { case URI_GROUP: { table = FeedColumns.TABLE_NAME; String groupId = uri.getPathSegments().get(1); where.append(FeedColumns._ID).append('=').append(groupId); // Delete the sub feeds & their entries Cursor subFeedsCursor = database.query(FeedColumns.TABLE_NAME, FeedColumns.PROJECTION_ID, FeedColumns.GROUP_ID + "=" + groupId, null, null, null, null); while (subFeedsCursor.moveToNext()) { String feedId = subFeedsCursor.getString(0); delete(FeedColumns.CONTENT_URI(feedId), null, null); } subFeedsCursor.close(); // Update the priorities Cursor priorityCursor = database.query(FeedColumns.TABLE_NAME, FeedColumns.PROJECTION_PRIORITY, FeedColumns._ID + "=" + groupId, null, null, null, null); if (priorityCursor.moveToNext()) { int priority = priorityCursor.getInt(0); String priorityWhere = FeedColumns.PRIORITY + " > " + priority; String groupWhere = '(' + FeedColumns.IS_GROUP + Constants.DB_IS_TRUE + Constants.DB_OR + FeedColumns.GROUP_ID + Constants.DB_IS_NULL + ')'; database.execSQL("UPDATE " + FeedColumns.TABLE_NAME + " SET " + FeedColumns.PRIORITY + " = " + FeedColumns.PRIORITY + "-1 WHERE " + groupWhere + Constants.DB_AND + priorityWhere); } priorityCursor.close(); break; } case URI_FEED: { table = FeedColumns.TABLE_NAME; final String feedId = uri.getPathSegments().get(1); // Remove also the feed entries & filters new Thread() { @Override public void run() { Uri entriesUri = EntryColumns.ENTRIES_FOR_FEED_CONTENT_URI(feedId); delete(entriesUri, null, null); delete(FilterColumns.FILTERS_FOR_FEED_CONTENT_URI(feedId), null, null); NetworkUtils.deleteFeedImagesCache(entriesUri, null); } }.start(); where.append(FeedColumns._ID).append('=').append(feedId); // Update the priorities Cursor priorityCursor = database.query(FeedColumns.TABLE_NAME, new String[]{FeedColumns.PRIORITY, FeedColumns.GROUP_ID}, FeedColumns._ID + '=' + feedId, null, null, null, null); if (priorityCursor.moveToNext()) { int priority = priorityCursor.getInt(0); String groupId = priorityCursor.getString(1); String groupWhere = '(' + (groupId != null ? FeedColumns.GROUP_ID + '=' + groupId : FeedColumns.IS_GROUP + Constants.DB_IS_TRUE + Constants.DB_OR + FeedColumns.GROUP_ID + Constants.DB_IS_NULL) + ')'; String priorityWhere = FeedColumns.PRIORITY + " > " + priority; database.execSQL("UPDATE " + FeedColumns.TABLE_NAME + " SET " + FeedColumns.PRIORITY + " = " + FeedColumns.PRIORITY + "-1 WHERE " + groupWhere + Constants.DB_AND + priorityWhere); } priorityCursor.close(); break; } case URI_GROUPS: case URI_FEEDS: { table = FeedColumns.TABLE_NAME; break; } case URI_FEEDS_FOR_GROUPS: { table = FeedColumns.TABLE_NAME; where.append(FeedColumns.GROUP_ID).append('=').append(uri.getPathSegments().get(1)); break; } case URI_FILTERS: { table = FilterColumns.TABLE_NAME; break; } case URI_FILTERS_FOR_FEED: { table = FilterColumns.TABLE_NAME; where.append(FilterColumns.FEED_ID).append('=').append(uri.getPathSegments().get(1)); break; } case URI_ENTRY_FOR_FEED: case URI_ENTRY_FOR_GROUP: case URI_SEARCH_ENTRY: { table = EntryColumns.TABLE_NAME; final String entryId = uri.getPathSegments().get(3); where.append(EntryColumns._ID).append('=').append(entryId); // Also remove the associated tasks new Thread() { @Override public void run() { delete(TaskColumns.CONTENT_URI, TaskColumns.ENTRY_ID + '=' + entryId, null); } }.start(); break; } case URI_ENTRIES_FOR_FEED: { table = EntryColumns.TABLE_NAME; where.append(EntryColumns.FEED_ID).append('=').append(uri.getPathSegments().get(1)); //TODO also remove tasks break; } case URI_ENTRIES_FOR_GROUP: { table = EntryColumns.TABLE_NAME; where.append(EntryColumns.FEED_ID).append(" IN (SELECT ").append(FeedColumns._ID).append(" FROM ").append(FeedColumns.TABLE_NAME).append(" WHERE ").append(FeedColumns.GROUP_ID).append('=').append(uri.getPathSegments().get(1)).append(')'); //TODO also remove tasks break; } case URI_ALL_ENTRIES: case URI_ENTRIES: { table = EntryColumns.TABLE_NAME; // Also remove all tasks new Thread() { @Override public void run() { delete(TaskColumns.CONTENT_URI, null, null); } }.start(); break; } case URI_FAVORITES_ENTRY: case URI_ALL_ENTRIES_ENTRY: case URI_ENTRY: { table = EntryColumns.TABLE_NAME; where.append(EntryColumns._ID).append('=').append(uri.getPathSegments().get(1)); break; } case URI_FAVORITES: { table = EntryColumns.TABLE_NAME; where.append(EntryColumns.IS_FAVORITE).append(Constants.DB_IS_TRUE); break; } case URI_TASKS: { table = TaskColumns.TABLE_NAME; break; } case URI_TASK: { table = TaskColumns.TABLE_NAME; where.append(TaskColumns._ID).append('=').append(uri.getPathSegments().get(1)); break; } } if (!TextUtils.isEmpty(selection)) { if (where.length() > 0) { where.append(Constants.DB_AND); } where.append(selection); } int count = database.delete(table, where.toString(), selectionArgs); if (FeedColumns.TABLE_NAME.equals(table)) { mDatabaseHelper.exportToOPML(); } if (count > 0) { notifyChangeOnAllUris(matchCode, uri); } return count; } private static String getSearchWhereClause(String uriSearchParam) { uriSearchParam = Uri.decode(uriSearchParam).trim(); if (!uriSearchParam.equals("")) { uriSearchParam = DatabaseUtils.sqlEscapeString("%" + Uri.decode(uriSearchParam) + "%"); return new StringBuilder(EntryColumns.TITLE).append(" LIKE ").append(uriSearchParam) .append(Constants.DB_OR).append(EntryColumns.ABSTRACT).append(" LIKE ") .append(uriSearchParam).append(Constants.DB_OR) .append(EntryColumns.MOBILIZED_HTML).append(" LIKE ").append(uriSearchParam) .toString(); } else { return "1 = 2"; // to have 0 result with an empty search } } private void notifyChangeOnAllUris(int matchCode, Uri uri) { ContentResolver cr = getContext().getContentResolver(); cr.notifyChange(uri, null); if (matchCode != URI_FILTERS && matchCode != URI_FILTERS_FOR_FEED && matchCode != URI_TASKS && matchCode != URI_TASK) { // Notify everything else (except EntryColumns.CONTENT_URI to not update the // entry WebView when clicking on "favorite" button) cr.notifyChange(FeedColumns.GROUPED_FEEDS_CONTENT_URI, null); cr.notifyChange(EntryColumns.ALL_ENTRIES_CONTENT_URI, null); cr.notifyChange(EntryColumns.FAVORITES_CONTENT_URI, null); cr.notifyChange(FeedColumns.CONTENT_URI, null); cr.notifyChange(FeedColumns.GROUPS_CONTENT_URI, null); } } }