我一直在尝试向jbuilder添加自定义属性，就像我在显示页中向索引页进行分页一样，它将分页并且其不显示自定义属性。
例如我在 Controller 操作中拥有的是
def index
#respond_with
@publishers = Publisher.paginate(:page => params[:page], :per_page => 30)
respond_to do |format|
format.json
end
end
而我的index.json.jbuilder是
json.array!(@publishers) do |publisher|
json.extract! publisher, :id, :name, :url
json.categories do
publisher.categories.each do |category|
json.name category.name
json.id category.id
json.url url_for(category)
end
end
end
我想拥有的是
json.current_page @publishers.current_page
json.total_pages @publishers.totla_entries
json.array!(@publishers) do |publisher|
json.extract! publisher, :id, :name, :url
json.categories do
publisher.categories.each do |category|
json.name category.name
json.id category.id
json.url url_for(category)
end
end
end
这样我就可以在索引页面的json输出中显示current_page和total页面。
目前我所拥有的是
[{"id":1,"name":"facebook","url":"http://www.facebook.com","categories":{"name":"Art and Crafts","id":1,"url":"/categories/1-art-and-crafts"}}]
我怎么能做到这一点。我也在用willpaginate
最佳答案
经过长时间的忙碌，看看jbuilder show模板是如何工作的，我意识到json.array!方法覆盖了块外的所有内容，所以我做了几个星期，并通过将其拍成如下所示的根节点来解决了该问题
json.current_page @publishers.current_page
json.total_pages @publishers.total_entries
json.total_records Publisher.count
json.publishers do |publishersElement|
publishersElement.array!(@publishers) do |publisher|
json.extract! publisher, :id, :name, :url
json.categories do
publisher.categories.each do |category|
json.name category.name
json.id category.id
json.url url_for(category)
end
end
end
end
我得到的输出是这个
{"current_page":1,"total_pages":1,"total_records":1,"publishers":[{"id":1,"name":"Bellanaija","url":"http://www.bellanaija.com","categories":{"name":"Art and Crafts","id":1,"url":"/categories/1-art-and-crafts"}}]}
关于ruby-on-rails - 如何向jbuilder索引页面添加额外的属性，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/25930100/