Question

我在我的rails应用中使用 filterrific gem来过滤结果，我根据选项过滤了事件我的代码如下

event.rb

filterrific :default_filter_params => { :sorted_by => 'created_at_desc' },
              :available_filters => %w[
                sorted_by
                search_query
                with_category_id
                with_area
              ]

 # default for will_paginate
   self.per_page = 9

scope :with_category_id, lambda { |category_ids|
                          where(category_id: [*category_ids])
                        }

events_controller.rb

def index
  @filterrific = initialize_filterrific(
        Event,
        params[:filterrific],
        :select_options => {
             sorted_by: Event.options_for_sorted_by,
             with_category_id: Category.options_for_select

        }
    ) or return
    @events = @filterrific.find.paginate(page: params[:page], per_page: 6).where(is_job: false)


  respond_to do |format|
      format.html
      format.js
    end
end

index.html.erb

<%= form_for_filterrific @filterrific, :class => 'col s12' do |f| %>

          <%= render_filterrific_spinner %>
          <%= f.hidden_field :source , :value => 'event' %>
          <div class="col s12 m3 ">
            <div class="filter-container">
             <li>
                  <%= f.select(
                                  :with_category_id,
                                  @filterrific.select_options[:with_category_id],
                                  { include_blank: ' Any ' },
                                  class: 'select-filter'
                          ) %>

                      <label>select category</label>

                </li>
             </div>
            <%= link_to(
                        'Reset filters',
                        reset_filterrific_url,
                ) %>
          </div>
      <% end %>

<%= render(
                                                 partial: 'events/list',

                                         ) %>

index.js.erb的

<% js = escape_javascript(
  render(partial: 'events/list')
) %>
$("#filterrific_results").html("<%= js %>");
$('#filterrific_results').load(document.URL +  ' #filterrific_results');

_list.html.erb

<div id="filterrific_results">
<% @events.each do |event| %>
<%= link_to event.name, company_event_path(event.company.id, event.id) %>
 <% end %>

</div>

所以我在这里做的是我用一个选择框根据他们的类别过滤事件但现在我想在选择框中添加选项框必须包含复选框元素的功能，以便我可以过滤多个类别结果，这样当我检查一个类别时，它将按该单个类别过滤结果，当我点击另一个类别，它将过滤该类别和之前的类别

的结果

提前解决这个问题很有帮助

Answer 1

您可以使用multiple: true，如下所示：

<%= f.select(
                                  :with_category_id,
                                  @filterrific.select_options[:with_category_id],
                                  { include_blank: ' Any ' },
                                  { multiple: true, class: 'select-filter'}
                          ) %>

Ruby on rails 4使用filterrific根据复选框进行过滤

1 个答案: