@Nullable
@Override
public Cursor query(
Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
Cursor retCursor;
switch (uriMatcher.match(uri)) {
case PROJECTS:
retCursor =
projectDBHelper
.getReadableDatabase()
.query(
ProjectContract.ProjectEntry.TABLE_NAME,
projection,
selection,
selectionArgs,
null,
null,
sortOrder);
break;
case PROJECT_BY_ID:
String id = uri.getPathSegments().get(1);
retCursor =
projectDBHelper
.getReadableDatabase()
.query(
ProjectContract.ProjectEntry.TABLE_NAME,
projection,
"_id=?",
new String[] {id},
null,
null,
null);
break;
default:
throw new UnsupportedOperationException("Unknown uri: " + uri);
}
;
retCursor.setNotificationUri(getContext().getContentResolver(), uri);
return retCursor;
}
@Nullable
@Override
public Uri insert(Uri uri, ContentValues values) {
long id =
projectDBHelper
.getWritableDatabase()
.insertWithOnConflict(
ProjectContract.ProjectEntry.TABLE_NAME,
null,
values,
SQLiteDatabase.CONFLICT_IGNORE);
return ContentUris.withAppendedId(uri, id);
}
@Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
String id = null;
if (uriMatcher.match(uri) == PROJECT_BY_ID) {
id = uri.getPathSegments().get(1);
}
if (id != null) {
return projectDBHelper
.getWritableDatabase()
.update(ProjectContract.ProjectEntry.TABLE_NAME, values, "_id=?", new String[] {id});
}
return -1;
}