我想动态创建一些动作,如下所示。
但由于代码不在方法中,我收到以下错误:“未定义的局部变量或方法”
这是否可能,如果是这样 - 怎么样?
class Post < ActiveRecord::Base
CATEGORIES = [:music,:movies,:art,:jokes,:friends,:whatever].freeze
end
class PostsController < ApplicationController
Post::CATEGORIES.each do |category|
eval <<-INDEX_LIKE_ACTIONS
def #{category}
@posts = Post.where( category: '#{category}' )
render :index
end
INDEX_LIKE_ACTIONS
end
end
resources :posts do
collection do
Post::CATEGORIES.each {|category| get category.to_s}
end
end
答案 0 :(得分:2)
您可以使用ruby的define_method
Post::CATEGORIES.each do |category|
define_method category do
@posts = Post.where(category: category.to_s)
render :index
end
end