Meta-Issue: Multiple languages

[dannylamb]

This is a meta issue created to track issues related to multi-lingual content in Drupal and Fedora. Please refer to this issue in any subsequent issues to link them.

@Natkeeran has already done some investigation into these matters and has documented his results.

We should take a closer look at how we want multi-lingual content to be handled at both the Drupal and Fedora layers and try to develop a best practice approach that we can suggest through documentation.

[Natkeeran]

All major goals we initially set forward have been addressed in the 1.0 release including the following:

• multi-language repository, UI translations (provided by Drupal; enabled, configured, documented in Islandora 8)
• language independent canonical uris (opaque uris)
• using language tags to differentiate multilingual literal values in Drupal, Fedora, Triplestore
• documentation

The above provide core support for create, edit and query multilingual linked data in a user friendly way. Thus, we can consider this meta issue to be completed.

Stretch goals:

• Additional language translations for Islandora 8 labels (easy): https://github.com/Islandora-CLAW/islandora_defaults/tree/8.x-1.x/translations
• Having multilingual property lables in Triplestore is a stretch goal (harder, may not be in our scope, for instance, does Blazegraph or Fedora support this?)