id,summary,reporter,owner,description,type,status,component,version,severity,resolution,keywords,cc,stage,has_patch,needs_docs,needs_tests,needs_better_patch,easy,ui_ux 12199,Give 'firstof' tag ability to assign result to context,Tim Valenta,craigls,"When you need to access fields on objects in a {{{ {% firstof %} }}} fashion, semantically 'optional' fields can cause issues: {{{ Today the teacher is {% firstof substitute.name teacher.name %}, and drives a {% firstof substitute.car teacher.car %} }}} If {{{ substitute }}} doesn't have a value for {{{ car }}}, then it will fall back to {{{ teacher.car }}}. The real issue is that {{{ {% firstof %} }}} cannot preserve its value for later multiple inspections. If the {{{ {% firstof %} }}} tag could assign its result to a context variable, it would solve this problem: {{{ {% firstof substitute teacher as teacher_for_today %} Today the teacher is {{ teacher_for_today }} {% if teacher_for_today.car %} and drives a {{ teacher_for_today.car }} {% endif %} }}} I am unsure that this is possible to achieve without the {{{ as }}} syntax. One would have to code a template tag or filter for the sole purpose of duplicating the exact functionality that I propose be added to {{{ {% firstof %} }}}. Attached patch for functionality and documentation on the subject.",New feature,closed,Template system,dev,Normal,fixed,"firstof, as, context",,Accepted,1,0,1,0,0,0