Support of gf command for jbuilder partials.

Author: Dmitry Myasovskiy

autoload/rails.vim

@@ -2137,6 +2137,9 @@ function! s:RailsFind()
   let res = s:sub(s:sub(s:findasymbol('partial','\1'),'^/',''),'[^/]+$','_&')
   if res != ""|return res."\n".s:findview(res)|endif
 
+  let res = s:sub(s:sub(s:findfromview('json\.(\=\s*\%(:partial\s\+=>\|partial!\)\s*','\1'),'^/',''),'[^/]+$','_&')
+  if res != ""|return res."\n".s:findview(res)|endif
+
   let res = s:sub(s:sub(s:findfromview('render\s*(\=\s*\%(:partial\s\+=>\|partial:\)\s*','\1'),'^/',''),'[^/]+$','_&')
   if res != ""|return res."\n".s:findview(res)|endif