educoder/app/services/search_service.rb

class SearchService < ApplicationService
  include ElasticsearchAble

  attr_reader :params

  def initialize(params)
    @params = params
  end

  def call
    # return [] if keyword.blank?

    modal_name.search(keyword, search_options)
  end

  private

  def modal_name
    @_modal_name ||=
      case params[:type].to_s.strip
      when 'shixun'  then Shixun
      when 'course'  then Course
      when 'subject' then Subject
      when 'memo'    then Memo
      else Shixun
      end
  end

  def search_options
    model_options = {
      includes: modal_name.searchable_includes
    }
    model_options.deep_merge!(where: { status: 2 }) if modal_name == Shixun
    model_options.deep_merge!(extra_options)

    model_options.deep_merge!(default_options)
    model_options
  end

  def extra_options
    case params[:type].to_s.strip
    when 'shixun' then
      if Laboratory.current.main_site?
        not_shixun_ids = Shixun.joins(:laboratory_shixuns).where("laboratory_shixuns.laboratory_id != #{Laboratory.current.id}")
        shixun_ids = Shixun.where.not(id: not_shixun_ids).pluck(:id)
      else
        shixun_ids = Laboratory.current.shixuns.pluck(:id)
      end
      { where: { id: shixun_ids } }
    when 'subject' then
      if Laboratory.current.main_site?
        not_subject_ids = Subject.joins(:laboratory_subjects).where("laboratory_subjects.laboratory_id != #{Laboratory.current.id}")
        subject_ids = Subject.where.not(id: not_subject_ids).pluck(:id)
      else
        subject_ids = Laboratory.current.subjects.pluck(:id)
      end
      { where: { id: subject_ids } }
    when 'course' then
      { where: { laboratory_id: Laboratory.current.id } }
    else
      {}
    end
  end
end