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Whenever your schema changes you need to increment the database version number, either through
Configuration or AA_DB_VERSION meta-data. If new classes are added, ActiveAndroid will automatically add them to the database. If you want to change something in an existing table however (e.g. add a column or rename a table), this is done using sql-scripts named
<NewVersion>.sql, where NewVersion is the AA_DB_VERSION, in
ActiveAndroid will execute a script if its filename is greater than the old database-version and smaller or equal to the new version.
Let’s assume you added a column
color to the
Items table. You now need to increase AA_DB_VERSION to 2 and provide a script
ALTER TABLE Items ADD COLUMN color INTEGER;
Please refer to the SQLite docs for more info on the
ALTER TABLE command capabilities.