我有以下haml代码
form_for @user_notification_settings_form do |f|
= f.label :follow do
div dummy
但它会产生
<label for="user_notification_settings_form_follow">
foruser_notification_settings_form_follow
</label>
正如我所期望的那样
<label for="user_notification_settings_form_follow">
<div>dummy</div>
</label>
调试到我发现的rails：
label_tagwithin form_tag_helperhas&block但是当它调用content_tag时tag_helper，&blocknow 变为 nil
def label_tag(name = nil, content_or_options = nil, options = nil, &block)
options = content_or_options if block_given? && content_or_options.is_a?(Hash)
options ||= {}
options.stringify_keys!
options["for"] = sanitize_to_id(name) unless name.blank? || options.has_key?("for")
content_tag :label, content_or_options || name.to_s.humanize, options, &block
end
def content_tag(name, content_or_options_with_block = nil, options = nil, escape = true, &block)
if block_given?
options = content_or_options_with_block if content_or_options_with_block.is_a?(Hash)
content_tag_string(name, capture(&block), options, escape)
else
content_tag_string(name, content_or_options_with_block, options, escape)
end
end