【发布时间】:2015-10-30 09:08:14
【问题描述】:
我需要根据用户对问题的回答预先选择一个复选框。我编写了代码来处理响应的保存和使用“包含?”的方法。为 check_box_tag 的 "checked" 选项设置 true 或 false 值。但是,无论我做什么,check_box_tag 都拒绝将复选框预先标记为真。我已经审查了与我的问题类似的几乎所有问题和回复,但没有一个答案有效。我将代码简化为以下内容,以删减我能想到的尽可能多的变量:
<% options.each do |option| %>
<%= check_box_tag "test", 1, true %>
<%= option.description %>
<% end %>
复选框与选项说明一起显示,但该复选框仍未预先选中。有没有我遗漏的部分?
检查元素显示:
*input checked="checked" id="test" name="test" type="checkbox" value="1"*
这个特定的代码部分在我通过 locals 传递参数的部分中(如果有帮助的话)。
使用 Rails 3.2 和 Ruby 1.9.3
这是与 collection_check_boxes 类似的问题 How to pre-populate collection_check_boxes in an edit form?
感谢您抽出时间与我一起检查此内容 =)
编辑 1(添加上下文代码): 为了提供进一步的上下文,我们正在处理嵌套表单...
_multiple_choice_mr_form.html.erb
<%= question_statement %> <br/>
<% response_choices.each do |choice| %>
<!--% raise choice.inspect %>-->
<!--% raise "#{Response.response_answered?(current_user.id, question_id)} ~" + "question id: #{question_id}" %>-->
<!--% raise Response.multiple_answers_checked?(current_user.id, question_id, choice.description).inspect %>-->
<!--%= check_box_tag "response_#{question_id}_#{choice.id}".to_sym, choice.description, Response.multiple_answers_checked?(current_user.id, question_id, choice.description) %>-->
<%= check_box_tag "test", 1, true %>
<%= choice.description %> <br />
-->
-->
-->
-->
上面的很多代码都已经尝试过了,每个单独的代码都按预期工作......因此我将它分解为原始示例。
_form.html.erb
<table>
<% @topic.topic_pages.order("sort_field asc").each do |topic_page| %>
<tr>
<h2><%= topic_page.title %></h2>
<% topic_page.page_sections.order("sort_field asc").each do |page_section| %>
<p>
<h3><%= page_section.title if page_section.title.present? %></h3>
<%= page_section.content.html_safe if page_section.content.present? %>
<%= page_section.instruction.html_safe if page_section.instruction.present? %>
<% if page_section.upload_material.present? %>
<%= image_tag page_section.upload_material.url %>
<% end %>
<% page_section.questions.order("question_order asc").each do |question| %>
<% if question.question_type == "No Response" %>
<%= question.question_statement %> <br />
<% else %>
<%= render :partial => 'responses/online_document_responses/mulitple_choice_form', :locals => {:question_id => question.id, :question_statement => question.question_statement} if question.completed? %>
<%= render :partial => 'responses/online_document_responses/radio_button_form', :locals => {:question_id => question.id, :question_statement => question.question_statement, :response_choices => question.answer_choice_options} if question.scale? %>
<%= render :partial => 'responses/online_document_responses/open_response_form', :locals => {:question_id => question.id, :question_statement => question.question_statement} if question.open_response? %>
<%= render :partial => 'responses/online_document_responses/ranking_form', :locals => {:question_id => question.id, :question_statement => question.question_statement, :response_choices => question.answer_choice_options} if question.ranking? %>
<%= render :partial => 'responses/online_document_responses/multiple_choice_sr_form', :locals => {:question_id => question.id, :question_statement => question.question_statement, :response_choices => question.answer_choice_options} if question.multiple_choice_sr? %>
<%= render :partial => 'responses/online_document_responses/multiple_choice_mr_form', :locals => {:question_id => question.id, :question_statement => question.question_statement, :response_choices => question.answer_choices} if question.multiple_choice_mr? %>
<% end %>
<% end %>
<% end %>
</tr>
<% end %>
</table>
<div class="form-actions">
<%= f.button :submit, value: "Save Responses" %>
</div>
**Edit(2) 从检查元素添加 HTML 输出:
<body id="gl">
<div id="main" role="main">
<div class="block" style="padding: 4em 1.25em;">
<div class="g center">
<div class="u100">
<form accept-charset="UTF-8" action="/topics/2" class="simple_form edit_topic" id="edit_topic_2" method="post" novalidate="novalidate"><div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="✓"><input name="_method" type="hidden" value="put"><input name="authenticity_token" type="hidden" value=“omitted"></div>
Mark all that apply! <br><input checked="checked" id="test" name="test" type="checkbox" value="1">
one <br><input checked="checked" id="test" name="test" type="checkbox" value="1">
two <br><input checked="checked" id="test" name="test" type="checkbox" value="1">
three <br><input checked="checked" id="test" name="test" type="checkbox" value="1">
four <br><input checked="checked" id="test" name="test" type="checkbox" value="1">
five <br><input checked="checked" id="test" name="test" type="checkbox" value="1">
six <br>
<div class="form-actions">
<input class="btn" name="commit" type="submit" value="Save Responses">
</div>
</form> <br>
</div>
</div>
</div>
</div>
</body>
Edit(3) 尝试使用自定义属性:
Topic.rb
attr_accessor :response_statement_helper
def response_statement_helper
true
end
我现在将表单传递到部分中,以允许我以某些简单表单文档显示的方式使用自定义属性...
_multiple_choice_mr_form.html.erb
-<%= check_box_tag "test", 1, true %>
+<%= form.input_field :response_statement_helper, as: :boolean, boolean_style: :inline %>
这会在 html 输出中产生:
<input boolean_style="inline" checked="checked" class="boolean optional" id="topic_response_statement_helper" name="topic[response_statement_helper]" type="checkbox" value="1">
但是复选框的显示仍然没有反映“选中”的值。
根据 Gacha 的回答尝试了 edit(3) 的解决方案来参考这个问题: add checkbox with simple_form without association with model?
【问题讨论】:
-
我认为您可能在问题中消除了太多变量,因为此代码对我有用。如果我将 3 个
<%= check_box_tag "test", 1, true %>副本放在我的 Rails 应用程序(与您的版本相同)的视图中,我会在浏览器中看到 3 个实际上已选中的复选框。 -
看起来很奇怪。
checked="checked"是正确的。也许您应该为复选框粘贴确切的 html 输出。 -
@Sean,这就是问题所在,尽管即使将代码简化为基础,但它仍然对我不起作用......关于其他可能导致此特定问题的任何想法?也许它是一个浏览器问题(虽然我使用的是 chrome,所以我不确定是这种情况)?
-
我的假设是否正确,因为“checked=checked”应该意味着复选框被标记在视图右侧?
-
<%= check_box_tag "test", 1, checked: true %>试试这个
标签: ruby-on-rails ruby ruby-on-rails-3 checkbox