公共贴吧编辑附件时公开与否属性的显示错误

app/views/attachments/_form.html.erb

@@ -5,7 +5,7 @@
       <%= text_field_tag("attachments[p#{i}][filename]", attachment.filename, :class => 'filename readonly', :readonly=>'readonly')%>
       <%= text_field_tag("attachments[p#{i}][description]", attachment.description, :maxlength => 254, :placeholder => l(:label_optional_description), :class => 'description', :style=>"display: inline-block;") %>
       <span class="ispublic-label"><%= l(:field_is_public)%>:</span>
-      <%= check_box_tag("attachments[p#{i}][is_public_checkbox]", attachment.is_public, :class => 'is_public')%>
+      <%= check_box_tag("attachments[p#{i}][is_public_checkbox]", attachment.is_public,attachment.is_public == 1 ? true : false,:class => 'is_public')%>
       <%= if attachment.id.nil?
         #待补充代码
       else