搜索过滤器 - 仅主题/仅帖子

Canapin · 2023 年3 月 13 日 23:40

对我来说，这是一个未知、奇怪且可怕的世界，但看看代码，控制器应该在这里：

app/controllers/search_controller.rb

2c8dfc3db

# frozen_string_literal: true

class SearchController < ApplicationController
  before_action :cancel_overloaded_search, only: [:query]
  skip_before_action :check_xhr, only: :show
  after_action :add_noindex_header

  def self.valid_context_types
    %w[user topic category private_messages tag]
  end

  def show
    permitted_params = params.permit(:q, :page)
    @search_term = permitted_params[:q]

    # a q param has been given but it's not in the correct format
    # eg: ?q[foo]=bar
    raise Discourse::InvalidParameters.new(:q) if params[:q].present? && !@search_term.present?

    if @search_term.present? && @search_term.length < SiteSetting.min_search_term_length

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搜索过滤器似乎在这里：

github.com/discourse/discourse

lib/search.rb

60ad83631


      
          end
          
          def self.custom_topic_eager_load(tables = nil, &block)
            (@custom_topic_eager_loads ||= []) << (tables || block)
          end
          
          def self.custom_topic_eager_loads
            Array.wrap(@custom_topic_eager_loads)
          end
          
          advanced_filter(/\Ain:personal-direct\z/i) do |posts|
            if @guardian.user
              posts.joins("LEFT JOIN topic_allowed_groups tg ON posts.topic_id = tg.topic_id").where(
                <<~SQL,
                  tg.id IS NULL
                  AND posts.topic_id IN (
                    SELECT tau.topic_id
                    FROM topic_allowed_users tau
                    JOIN topic_allowed_users tau2
                    ON tau2.topic_id = tau.topic_id
                    AND tau2.id != tau.id

您可能也想看看 Discours Assign 如何为搜索添加过滤器：

github.com/discourse/discourse-assign

plugin.rb

99e5bb48c


      
          end
          
          register_search_advanced_filter(/in:assigned/) do |posts|
            posts.where(<<~SQL) if @guardian.can_assign?
                topics.id IN (
                  SELECT a.topic_id FROM assignments a WHERE a.active
                )
              SQL
          end
          
          register_search_advanced_filter(/in:unassigned/) do |posts|
            posts.where(<<~SQL) if @guardian.can_assign?
                topics.id NOT IN (
                  SELECT a.topic_id FROM assignments a WHERE a.active
                )
              SQL
          end
          
          register_search_advanced_filter(/assigned:(.+)$/) do |posts, match|
            if @guardian.can_assign?
              if user_id = User.find_by_username(match)&.id

话题		回复	浏览量
Searching for content effectively Using Discourse search	9	3376	2025 年6 月 26 日
Issue with advanced search when scoping to messages I posted Feature	6	804	2018 年12 月 15 日
Filtering topic lists in Discourse Using Discourse search , reference , topic-filter	15	550	2025 年9 月 23 日
How to display all matched replies in search results? Support	4	468	2023 年6 月 14 日
Search just the initial topic post, excluding replies? Support	3	1189	2015 年6 月 23 日

搜索过滤器 - 仅主题/仅帖子

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