我很长一段时间都忽略了 ruby on rails 的 DRY 原则。我在不同的 View 文件中反复使用相同的代码块:
<div class="challenge-accomplished-date-banner">
<% if @correct_user %>
<%= challenge.notes.count.to_s.rjust(2, "0") %>
<% else %>
<%= challenge.notes.publish.count.to_s.rjust(2, "0") %>
<% end %>
</div>
<% if challenge.categorization == "adventure" %>
<%= link_to categorization_path(categorization: :adventure) do %>
<span class="glyphicon glyphicon-picture", id="challenge-flag"></span>
<% end %>
<% elsif challenge.categorization == "health" %>
<%= link_to categorization_path(categorization: :health) do %>
<span class="glyphicon glyphicon-heart", id="challenge-flag"></span>
<% end %>
<% elsif challenge.categorization == "work" %>
<%= link_to categorization_path(categorization: :work) do %>
<span class="glyphicon glyphicon-briefcase", id="challenge-flag"></span>
<% end %>
<% elsif challenge.categorization == "gift" %>
<%= link_to categorization_path(categorization: :gift) do %>
<span class="glyphicon glyphicon-tree-deciduous", id="challenge-flag"></span>
<% end %>
<% else %>
<%= link_to categorization_path(categorization: :wacky) do %>
<span class="glyphicon glyphicon-glass", id="challenge-flag"></span>
<% end %>
<% end %>
<% if challenge.duels.present? && challenge.duels.last.duelers.order(id: :asc).last.accept =! false %>
<span class="glyphicon glyphicon-tower", id="challenge-flag"></span>
<% elsif challenge.conceal == true %>
<span class="glyphicon glyphicon-eye-close", id="challenge-flag"></span>
<% else %>
<span class="glyphicon glyphicon-eye-open", id="challenge-flag"></span>
<% end %>
不知道该怎么办?我把它放在...
module ApplicationHelper
def banner
# See Above Code Chunk
end
end
但它不适用于 CSS?有没有办法在助手中允许 CSS?或者我是否将这段代码放在模型中的其他地方,但后来我遇到了同样的 CSS 问题?谢谢!
最佳答案
创建一个CATEGORIES
常量
CATEGORIES = {
adventure: 'glyphicon-picture',
health: 'glyphicon-heart',
work: 'glyphicon-briefcase',
gift: 'glyphicon-tree-deciduous'
}
CATEGORIES.default = 'glyphicon-glass'
创建部分
_flag.html.erb
<span class="glyphicon <%= class_name %>", id="challenge-flag"></span>
_link.html.erb
<%= link_to categorization_path(categorization: category) do %>
<%= render 'flag', class_name: class_name %>
<% end %>
并使用它们
<% category = challenge.categorization %>
<% class_name = CATEGORIES[category.to_sym] %>
<%= render 'link', class_name: class_name, category: category %>
关于css - 我应该如何处理包含 ruby 和 CSS 的重复使用的代码块?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/40298331/