所以我在页面底部有评论的表单(典型的文章和评论示例)。如果验证失败,则显示验证错误。
这是我的评论控制器代码:
class CommentsController < ApplicationController
before_action :authenticate_admin!, only: [:destroy]
expose(:article)
expose(:comment, attributes: :comment_params)
expose(:reply) { Reply.new }
def create
comment.article = article
if verify_recaptcha(model: comment, message: t('captcha_verification_error')) && comment.save
flash[:comment_notice] = t('comment_created_successfully')
redirect_to article_path(article) + '#comments'
else
flash[:comment_errors] = comment.errors.full_messages
render 'articles/show'
end
end
def destroy
comment.destroy
redirect_to article_path(article)
end
private
def comment_params
params.require(:comment).permit(:author, :content)
end
end
这是表格:
= simple_form_for(comment, url: article_comments_path(article)) do |f|
- if flash[:comment_errors]
.alert.alert-danger
strong= pluralize(flash[:comment_errors].count, 'error') + ' prohibited this article from being saved:'
- flash[:comment_errors].each do |msg|
ul
li= msg
fieldset class='form-group'
= f.label t('author')
= f.text_field :author, class: 'form-control', placeholder: t('who_are_you')
fieldset class='form-group'
= f.label t('content')
= f.text_area :content, class: 'form-control', rows: 6, placeholder: t('what_do_you_want_to_say')
fieldset class='form-group'
= recaptcha_tags
fieldset class='form-group'
= f.submit t('create_comment'), class: 'btn btn-primary'
对于表单,我使用简单表单。此外,我正在使用体面的曝光和纤薄的
我想在验证失败后我的页面向下滚动到表单(这样用户就不必手动滚动)。有没有简单的方法可以做到这一点?
AFAIK我不能通过锚来渲染(这将解决问题)。有什么想法吗?
所以我用这个放在注释形式中的javascript解决了这个问题:
javascript:
if (document.getElementById("comment_errors")) {
location.hash = '#new_comment';
}
当id为"comment_errors"(我的验证错误div)的元素存在时,它会跳到它。