<% if !user_commit_rep(changeset.author_email).nil? %> <%= image_tag(url_to_avatar(user_commit_rep(changeset.author_email)), :width => "20", :height => "20", :class => "fl portraitRadius mt2 ml4 mr5") %> <%= link_to user_commit_rep(changeset.author_email), user_path(user_commit_rep(changeset.author_email)), :length => 30 %>提交于 <% else %> <%= changeset.author_email %>提交于 <% end %>