redmine/app/views/issues/_edit.rhtml

<% labelled_tabular_form_for :issue, @issue,
                             :url => {:action => 'edit', :id => @issue},
                             :html => {:id => 'issue-form',
                                       :class => nil,
                                       :multipart => true} do |f| %>
    <%= error_messages_for 'issue' %>
    <div class="box">
    <% if @edit_allowed || !@allowed_statuses.empty? %>
        <fieldset class="tabular"><legend><%= l(:label_change_properties) %>
        <% if !@issue.new_record? && !@issue.errors.any? && @edit_allowed %>
        <small>(<%= link_to l(:label_more), {}, :onclick => 'Effect.toggle("issue_descr_fields", "appear", {duration:0.3}); return false;' %>)</small>
        <% end %>
        </legend>
        <%= render :partial => (@edit_allowed ? 'form' : 'form_update'), :locals => {:f => f} %>
        </fieldset>
    <% end %>
    <% if authorize_for('timelog', 'edit') %>
        <fieldset class="tabular"><legend><%= l(:button_log_time) %></legend>
        <% fields_for :time_entry, @time_entry, { :builder => TabularFormBuilder, :lang => current_language} do |time_entry| %>
        <div class="splitcontentleft">
        <p><%= time_entry.text_field :hours, :size => 6, :label => :label_spent_time %> <%= l(:field_hours) %></p>
        </div>
        <div class="splitcontentright">
        <p><%= time_entry.select :activity_id, (@activities.collect {|p| [p.name, p.id]}) %></p>
        </div>
        <p><%= time_entry.text_field :comments, :size => 60 %></p>
        <% end %>
    </fieldset>
    <% end %>
    
    <fieldset><legend><%= l(:field_notes) %></legend>
    <%= text_area_tag 'notes', @notes, :cols => 60, :rows => 10, :class => 'wiki-edit' %>
    <%= wikitoolbar_for 'notes' %>
    
    <p><%=l(:label_attachment_plural)%><br /><%= render :partial => 'attachments/form' %></p>
    </fieldset>
    </div>
    
    <%= f.hidden_field :lock_version %>
    <%= submit_tag l(:button_submit) %>
    <%= link_to_remote l(:label_preview), 
                       { :url => { :controller => 'issues', :action => 'preview', :project_id => @project, :id => @issue },
                         :method => 'post',
                         :update => 'preview',
                         :with => 'Form.serialize("issue-form")',
                         :complete => "Element.scrollTo('preview')"
                       }, :accesskey => accesskey(:preview) %>
<% end %>

<div id="preview" class="wiki"></div>