/**
  * Database schema setup
  *
  * We maintain a table mapping StatusNet notices to Twitter statuses
  *
  * @see Schema
  * @see ColumnDef
  *
  * @return boolean hook value; true means continue processing, false means stop.
  */
 function onCheckSchema()
 {
     $schema = Schema::get();
     // For saving the last-synched status of various timelines
     // home_timeline, messages (in), messages (out), ...
     $schema->ensureTable('twitter_synch_status', Twitter_synch_status::schemaDef());
     // For storing user-submitted flags on profiles
     $schema->ensureTable('notice_to_status', Notice_to_status::schemaDef());
     return true;
 }