wf_field - workflow

Experimental Drupal 7 implementation of workflow based on johan falk's (@itangalo) proof-of-concept screencast (http://nodeone.se/blogg/workflow-field-proof-of-concept) and the discussion on g.d.o here http://groups.drupal.org/node/73153#comment-370844.

It is a deliberately simple implementation that stores workflow state in a field and provides a simple ui for naming (and "disabling") transitions. It leverages rules for all of the workflow actions by exposing transitions as well as entering/leaving states as events for rules.

This is my first go at the fields-API and Drupal 7 module development so please bear w/ me.

Features:

• workflow state in a field
• Two widgets: one option field, one time "Transition-Buttons" (and hidden field)
• minimal formatter w/ minimally useful css class wrapping (.wf-field-state-{STATE} and .wf-field-{field-name}-state-{state})
• added an optional second "passive" label for each state to provide for an "active" and "passive" description of the state (i.e. 3|Publication|Published)
• block w/ transition links (w/ and w/o confirmation form)

Unsure / flaky:

• Instance settings / field settings?
• Validate configuration of the workflow states (only numeric keys etc.)
• Validation of values & permission handling (not thoroughly tested)
• Cleanup - elegance some approaches are really clunky (or is that just drupal?)
• Are the arguments passed/exposed to rules correctly (they don't show up in the arguments/context afterwards, might be me/d7)
• Support for other entities: taxonomy and user as proof-of-concept

Todo:

• Disable multiple values
• Better ui for workflow configuration