新手问题 [已解决] 请教：如何让 elasticsearch 查询出来的数据，已经有序？
仿照 RubyChina，SearchController 如下：
class SearchController < ApplicationController
def index
search_params = {
sort: [
{updated_at: {order: "desc", ignore_unmapped: true}}
],
query: {
multi_match: {
query: params[:q],
fields: ['title', 'body', 'name', 'login'],
fuzziness: 2,
prefix_length: 5,
operator: :and
}
},
highlight: {
pre_tags: ["[h]"],
post_tags: ["[/h]"],
fields: {title: {}, body: {}, name: {}, login: {}}
}
}
@result = Elasticsearch::Model.search(search_params, [User, Page, Topic]).paginate(page: params[:page], per_page: 30)
end
end
我想实现：出来的结果是保持 User, Page, Topic 的顺序，如何 Topic 里面按照 updated_at 排序。试了好多方法，不得其法，特来求解。
目前只能让 user 排在最前面，Page 和 Topic 就混乱了。
也许有帮助 https://github.com/elastic/elasticsearch-rails/issues/10#issuecomment-35114080
或者 30 条手动排序一下？
给 User, Page, Topic 的 Index 都加上一个参数，比如 type_order, 依次设置为：10，5，1 然后在 search_params 的 sort 里增加 type_order, 并且放在 update_at 前面
在 Topic User Page 分别加入：type_order: self.type_order
def as_indexed_json(options={})
{
title: self.title,
body: self.full_body,
node_name: self.node_name,
updated_at: self.updated_at,
excellent: self.excellent,
type_order: self.type_order
}
end
def type_order
1 for topic
5 for Page
10 for User
end
然后在 Search Controller 里面：
class SearchController < ApplicationController
def index
search_params = {
sort: [
{type_order: {order: "desc", ignore_unmapped: true}},
{updated_at: {order: "desc", ignore_unmapped: true}},
{excellent: {order: "desc", ignore_unmapped: true}}
],
query: {
multi_match: {
query: params[:q],
fields: ['title', 'body', 'name', 'login'],
fuzziness: 2,
prefix_length: 5,
operator: :and
}
},
highlight: {
pre_tags: ["[h]"],
post_tags: ["[/h]"],
fields: {title: {}, body: {}, name: {}, login: {}}
}
}
@result = Elasticsearch::Model.search(search_params, [User, Page, Topic]).paginate(page: params[:page], per_page: 30)
end
end
这下对了
