Upgrading from Tripal 3 to Tripal 4

The switch from Tripal 3 to Tripal 4 corresponds with the move from Drupal 7 to Drupal 10. Over this period Drupal changed its upgrade approach from (a) non-backwards compatible between major versions requiring a complete rewrite to (b) rolling deprecation notices where old/new implementations can exist alongside for a time. While this does mean the switch from Tripal 3 to Tripal 4 is a complete rewrite, this should be the last time we need to do such a large overhaul.

The following documentation is meant to guide you in this upgrade of your extension modules.

• Upgrading an Extension Module
  • Making decisions
• Database Queries
  • db_query
  • drupal_write_record
• Views
  • The hook_views_data() function
  • The hook_views_default_views() function
  • Embed a View on a Page
• Tips & Tricks
  • tripal_set_message() and tripal_report_error()
  • drupal_set_message()
  • format_date()
  • Loading a User Object
  • Creating Links
  • Attaching CSS