我是 Rails 新手,在我目前的项目中,我使用的是 Twitter 的Bootstrap。Bootstrap 的弹出框很漂亮,我打算广泛使用它们,所以我想为弹出框编写一个视图助手。
这是弹出框的标准 html 代码:
<div id="modal-from-dom" class="modal hide fade">
<div class="modal-header">
<a href="#" class="close">×</a>
/* popover header's code here */
</div>
<div class="modal-body">
/* popover body's code here */
</div>
<div class="modal-footer">
/* popover footer's code here */
</div>
<% end %>
</div>
/* button to show the popover */
这是我的辅助功能:
def render_popup(before,id ,button ,header, body, footer, after)
result = before.html_safe
result += '<div id="'.html_safe
result += id.html_safe
result += '" class="modal hide fade">'.html_safe
result += '<div class="modal-header">'.html_safe
result += '<a href="#" class="close">×</a>'.html_safe
result += header.html_safe
result += '</div>'.html_safe
result += '<div class="modal-body">'.html_safe
result += body.html_safe
result += '</div>'.html_safe
result += '<div class="modal-footer">'.html_safe
result += footer.html_safe
result += '</div>'.html_safe
result += '</div>'.html_safe
result += after.html_safe
result += '<button data-controls-modal="'.html_safe
result += id.html_safe
result += '" data-backdrop="true" data-keyboard="true" class="btn primary">'.html_safe
result += button.html_safe
result += '</button>'.html_safe
return result.html_safe
end
我知道这个函数很丑,但我还没有找到更好的方法来编写它:/也许有一些块?
最后是我认为调用这个助手的代码
<% before = form_tag url_for(:controller => "refunds" , :action => "create"), :method => :post %>
<% header = '<h3>Remboursement</h3>'%>
<% body = capture do %>
<p>
<p style="margin-top:15px"><b>Montant : (€)</b></p>
<%= text_field_tag :amount, nil, :placeholder => "ex : 123.45", :class => "span3" %>
<p style="margin-top:15px"><b>Destination</b></p>
<%= select_tag :user_id, options_for_select(@users_select), :class => "span3" %>
<p><br /></p>
<%= hidden_field_tag :current_user_id, @currentUser.id %>
</p>
<% end %>
<% footer = submit_tag "Rembourser", :class => "btn primary", :id =>"Rembourser" %>
<% after = "</form>" %>
<div style="margin-top:30px;text-align:center">
<%= render_popup (before,'refund', '+ Rembourser', header, body, footer, after)%>
</div>
如您所见,我在弹出框上拆分了一个表单。表单的字段在正文中,提交按钮在页脚中。弹出框显示正确,但提交按钮不起作用(它在没有助手的情况下工作)。
如何正确编写辅助函数并处理恶意表单问题?
更新 1
基于 nathanvda 的回答和 clyfe 的评论,我编辑了我的助手并创建了一个部分。
这是部分的代码:
<%= before %>
<div id="<%= popover_id %>" class="modal hide fade">
<div class="modal-header">
<a href="#" class="close">×</a>
<%= header%>
</div>
<div class="modal-body">
<%= body %>
</div>
<div class="modal-footer">
<%= footer %>
</div>
</div>
<%= after %>
<button data-controls-modal="<%= popover_id %>" data-backdrop="true" data-keyboard="true" class="btn primary">
<%= button %>
</button>
和辅助方法:
def render_popup(before,id ,button ,header, body, footer, after)
render :partial => 'shared/popover',
:locals => { :popover_id => id,
:header => header.html_safe,
:body => body,
:footer => footer.html_safe,
:button => button,
:before => before,
:after => after.html_safe}
end
视图的代码不会改变。
它更干净并且表单显示正确,但提交按钮不能更好地工作(当我点击它时没有发生任何事情)。有什么建议吗?
更新 2
通过将生成的 html 代码与帮助程序进行比较,没有它,我发现了提交问题。form_tag
不是在正确的地方。
使用视图中的此代码,它可以工作:
<% header = '<h3>Remboursement</h3>'%>
<% body = capture do %>
<p>
<%= form_tag url_for(:controller => "refunds" , :action => "create"), :method => :post %>
<p style="margin-top:15px"><b>Montant : (€)</b></p>
<%= text_field_tag :amount, nil, :placeholder => "ex : 123.45", :class => "span3" %>
<p style="margin-top:15px"><b>Destination</b></p>
<%= select_tag :user_id, options_for_select(@users_select), :class => "span3" %>
<p><br /></p>
<%= hidden_field_tag :current_user_id, @currentUser.id %>
</p>
<% end %>
<% footer = submit_tag "Rembourser", :class => "btn primary", :id =>"Rembourser" %>
<% after = "</form>" %>
<div style="margin-top:30px;text-align:center">
<%= render_popup (nil,'refund', '+ Rembourser', header, body, footer, after)%>
</div>
现在我有一个可行的解决方案,但它并不完美。如果我能放弃会很好after = "</form>"
吗?