Ruby 在 rails - Kaminari - 搜索结果的分页数组

Question

我有一个带分页的搜索表单。两者都可以单独工作，但如果我搜索然后加载下一页，搜索参数将被遗忘并且 kaminari 显示结果，无论我选择什么搜索选项。

我已经通读了文档和其他 Whosebug 帖子，但我没有任何运气。

我的索引页有

<%= search_form_for @q, html: { id: "gig_search_form" }, remote: true do |f| %>
bla bla bla...
<% end %>
<%= link_to_next_page @gigs, 'Next Page', :remote => true %>

index.js.erb

<% if params[:page] %> 
 $('.gig-search-list').append("<%= j render(partial: 'gigs') %>");
<% else %>
 $('.gig-search-list').html("<%= j render(partial: 'gigs') %>");
<% end %>

部分演出：

    <% @gigs.each do |gig| %>
      bla bla bla... 
    <% end %>

现在，我在我的控制器中尝试了一些设置，但我总是得到相同的结果。原来我有;

def index
      if params[:search].present?
        @q = Gig.notexpired.where(:filled => false).near(params[:search], 500, :order => 'distance' ).ransack(params[:q])
      else
        @q = Gig.notexpired.where(:filled => false).ransack(params[:q])
      end
        @allgigs = @q.result(distinct: true)
        @gigs = @q.result(distinct: true).page(params[:page]).per(5)
      respond_to do |format|
      format.js
      format.html
    end
  end

然后；

def index
      if params[:search].present?
        @q = Gig.notexpired.where(:filled => false).near(params[:search], 500, :order => 'distance' ).ransack(params[:q])
      else
        @q = Gig.notexpired.where(:filled => false).ransack(params[:q])
      end
        @allgigs = @q.result(distinct: true)
        @gigs = Kaminari.paginate_array(@allgigs).page(params[:page]).per(5)
      respond_to do |format|
      format.js
      format.html
    end
  end

然后我试着把它们分开;

def index
      if params[:search].present?
        @q = Gig.notexpired.where(:filled => false).near(params[:search], 500, :order => 'distance' ).ransack(params[:q])
      else
        @q = Gig.notexpired.where(:filled => false).ransack(params[:q])
      end
      @allgigs = @q.result(distinct: true)
      if @allgigs.present?
        unless @allgigs.kind_of?(Array)
          @gigs = @allgigs.page(params[:page]).per(5)
        else
          @gigs = Kaminari.paginate_array(@allgigs).page(params[:page]).per(5)
        end
      end
      respond_to do |format|
      format.js
      format.html
    end
  end

但我每次都得到相同的结果。我可以在控制台上看到，当我加载更多页面时，不包括搜索参数。

我怎样才能 link 将这两个东西放在一起并正确地对搜索结果进行分页？

更新：

使用@chaitanya 的回答加载 'next page' 后的服务器日志。我之前添加了搜索参数。

Started GET "/gigs?locale=en&page=2" for 127.0.0.1 at 2016-06-29 14:45:53 +0200
Processing by GigsController#index as JS
  Parameters: {"locale"=>"en", "page"=>"2"}
  Gig Load (10.3ms)  SELECT DISTINCT "gigs".* FROM "gigs" WHERE (gigzonetime > '2016-06-29 12:45:53.493341') AND "gigs"."filled" =   [["filled", "f"]]
  Gig Load (1.2ms)  SELECT  DISTINCT "gigs".* FROM "gigs" WHERE (gigzonetime > '2016-06-29 12:45:53.493341') AND "gigs"."filled" =  LIMIT 5 OFFSET 5  [["filled", "f"]]
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" =  LIMIT 1  [["id", 7]]
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" =  LIMIT 1  [["id", 2]]
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" =  LIMIT 1  [["id", 6]]
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" =  LIMIT 1  [["id", 1]]
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" =  LIMIT 1  [["id", 8]]
  Rendered gigs/_gigs.html.erb (13.4ms)
   (0.5ms)  SELECT DISTINCT COUNT(DISTINCT "gigs"."id") FROM "gigs" WHERE (gigzonetime > '2016-06-29 12:45:53.493341') AND "gigs"."filled" =   [["filled", "f"]]
  Rendered gigs/index.js.erb (17.2ms)
Completed 200 OK in 54ms (Views: 21.4ms | ActiveRecord: 13.0ms)

使用搜索表单过滤时的服务器日志：

Started GET "/gigs?locale=en&utf8=%E2%9C%93&search=&q%5Bdate_gteq%5D=&q%5Bdate_lteq%5D=&q%5Bgenres_id_in%5D%5B%5D=&q%5Bsalary_cents_gteq_euros%5D=0.00&q%5Bsalary_cents_lteq_euros%5D=210.00" for 127.0.0.1 at 2016-06-29 14:45:47 +0200
Processing by GigsController#index as JS
  Parameters: {"locale"=>"en", "utf8"=>"✓", "search"=>"", "q"=>{"date_gteq"=>"", "date_lteq"=>"", "genres_id_in"=>[""], "salary_cents_gteq_euros"=>"0.00", "salary_cents_lteq_euros"=>"210.00"}}
  Gig Load (0.6ms)  SELECT DISTINCT "gigs".* FROM "gigs" WHERE (gigzonetime > '2016-06-29 12:45:47.973892') AND "gigs"."filled" =  AND ("gigs"."salary_cents" >= 0 AND "gigs"."salary_cents" <= 21000)  [["filled", "f"]]
  Gig Load (0.5ms)  SELECT  DISTINCT "gigs".* FROM "gigs" WHERE (gigzonetime > '2016-06-29 12:45:47.973892') AND "gigs"."filled" =  AND ("gigs"."salary_cents" >= 0 AND "gigs"."salary_cents" <= 21000) LIMIT 5 OFFSET 0  [["filled", "f"]]
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" =  LIMIT 1  [["id", 1]]
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" =  LIMIT 1  [["id", 8]]
  CACHE (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" =  LIMIT 1  [["id", 1]]
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" =  LIMIT 1  [["id", 7]]
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" =  LIMIT 1  [["id", 3]]
  Rendered gigs/_gigs.html.erb (12.2ms)
   (0.4ms)  SELECT DISTINCT COUNT(DISTINCT "gigs"."id") FROM "gigs" WHERE (gigzonetime > '2016-06-29 12:45:47.973892') AND "gigs"."filled" =  AND ("gigs"."salary_cents" >= 0 AND "gigs"."salary_cents" <= 21000)  [["filled", "f"]]
  Rendered gigs/index.js.erb (15.6ms)
Completed 200 OK in 33ms (Views: 19.9ms | ActiveRecord: 5.7ms)

Answer 1

尝试使用以下代码将您的参数带到下一页

= link_to_next_page @gigs, "Next Page", :remote => true, :params => params

Answer 2

您应该将 #page 和 #per 方法添加到查询本身。 Kaminari.paginate_array 实际上是从整个数组中取出一个切片，效率不高。

这是一个片段

def index
  if params[:search].present?
    @q = Gig.notexpired.where(:filled => false).page(params[:page]).per(5).near(params[:search], 500, :order => 'distance' ).ransack(params[:q]).results
  else
    @q = Gig.notexpired.where(:filled => false).page(params[:page]).per(5).ransack(params[:q]).results
  end

#...

然后在您的视图中使用 Kaminari 分页助手

<%= paginate @q %>

Ruby 在 rails - Kaminari - 搜索结果的分页数组

Ruby on rails - Kaminari - Paginate array of search results

ruby-on-rails

ajax

search

pagination

kaminari