我尝试使用包含的 Enumarable 创建 ruby 类所以在视图中我尝试渲染类，它具有每个方法并且应该返回为特定 content_id 构建的对象
这是使用此代码的视图some_file.haml
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%table{:border => "0"}
%thead
%tr
%td Files
%td Views
%td Comments
%td Likes
%tbody
- render 'content_stats_row', :collection => @graphs.content_stats_table, :as => :row
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这是我的@graphs 课程
module FusionGraphs
class ContentStatsTable
include Enumerable
def initialize(content_ids, start_date, end_date)
@content_ids, @start_date, @end_date = content_ids, start_date, end_date
end
def summarized_content
@summarized_content ||= Hash[ Content.where(:id => @content_ids).value_of(:id, :name) ]
end
def summarized_comments
@summarized_comments ||= Comment.where(:content_id => @content_ids)
.where('date(created_at) between ? and ? ', @start_date, @end_date)
.group(:content_id)
.count
end
def summarized_views
@summarized_views ||= View.where(:viewable_type => 'Content', :viewable_id => @content_ids)
.where('date(created_at) between ? and ? ', @start_date, @end_date)
.group(:viewable_id)
.count
end
def summarized_likes
@summarized_likes ||= Like.where(:content_id => @content_ids)
.where('date(created_at) between ? and ? ', @start_date, @end_date)
.group(:content_id)
.count
end
def each
@rows ||= @content_ids.map do |content_id|
OpenStruct.new( :content_name => summarized_content[content_id],
:views => summarized_views[content_id] || 0,
:comments => summarized_comments[content_id] || 0,
:likes => summarized_likes[content_id] || 0
)
end
@rows.each {|row| yield row }
end
end
end
我无法从 ** render 'content_stats_row', :collection => graphs.content_stats_table, :as => :row 获得结果 ** 它不工作 我做错了什么？