Database Schema

The database contains 6 tables. 3 tables mt_cds_object (for media items or directories), mt_metadata (like artist or track number) and grb_cds_resource (like bitrate or image size) store details of the media (audio, video and images) and associated items (like subtitles or album art images). Table mt_autoscan maintains data on autoscan directories. Tables mt_internal_setting and grb_config_value store settings (like database version) and configuration values changed via UI.

_images/gerbera-db.png

Modify Schema

  • src/database/sql_database.h: Update DBVERSION
  • src/database/sqlite3/sqlite3.sql and src/database/mysql/mysql.sql: Modify CREATE TABLE statements
  • src/database/sqlite3/sqlite3-upgrade.xml and src/database/mysql/mysql-upgrade.xml: Add schema update commands
  • src/database/sqlite3/sqlite_database.cc and src/database/mysql/mysql_database.cc:
    • Add correct hashy to hashies list (run ctest to get error on wrong hash)
    • Update hashies[0] for the create scripts (run ctest to get error on wrong hash)