# 211110 TIL ([Ruby, slim] form_for 사용하기, filter 정의 후 사용하기)

장기현장실습

PLSnote 이슈

#2813 노트에 고유번호를 부여하고, 통합검색 기능 추가 이슈 진행중 

• 프린트에 나온 고유번호(activity.id)를 보고 맵 리스트 화면에서 검색할 수 있도록 하기 
  • 임의의 구현 상태에서 textarea가 아닌 form_for로 input창과 submit button이 나오도록 코드를 수정

    = form_for @group_filter, method: :get, enforce_utf8: false, url: '#' do |f| 
    	.form-group 
    		= f.label t('activities.index.by_activity_id'), class: "filter-label" 
    		= f.text_field :search_activity_id , placeholder: t('activities.index.search_activity_id') 
    	= f.submit t('activities.index.filtering'), class: "float-right btn btn-primary mr-2 col-auto"

    • Group_filter 파일을 만들어 사용할 수 있도록 함

      class GroupFilter
          extend ActiveModel::Naming
          include ActiveModel::Conversion
        
          attr_accessor :search_activity_id
        
          def initialize(group, user, filter_condition)
            @group_id = group.id  
            @user_id = user.id
            @search_activity_id = filter_condition[:search_activity_id]
          end
        
          def key
            "group_activities_#{@user_id}_#{@group_id}"
          end
         
          def attributes
            {
              search_activity_id: search_activity_id
            }
          end
        
          def persisted?
            false
          end
        
          module Scope
            def self.call(scope, filter)
              return scope if filter.nil?
        
              filter.attributes.each do |key, value|
                scope = scope.public_send(key, value) if value.present?
              end
              scope
            end
          end
       end

    • Group.rb에 Scope 정의

      scope :search_activity_id, -> (activity_id) { Activity.joins(:map).where(maps: {group: self}).where("activities.id like ?", "%#{activity_id}%") }

  • 검색 결과는 검색한 번호가 포함된 노트 리스트를 보여주는데 맵별로 나타내는 코드 구현 
    • group_filter를 사용하기 위해 인스턴스 변수 생성

      ...
      
      - else 
      	- filter_conditions = params[:group_filter] || {} 
      	- @group_filter = GroupFilter.new(group, current_user, filter_conditions)​

    • 맵 리스트로 보여주기 위해 Maps_controller.rb에 필터링된 맵리스트를 정의해줌

      @maps = @maps.joins(:activities).where("activities.id like ?", "%#{params[:search_activity_id]}%") if params[:search_activity_id].present?

  • 노트 리스트를 보여주는 것에 대해 개발자님과 회의
    • 맵 리스트 안에 노트리스트를 보여주는데, 몇개 이상이 되면 페이지네이션해서 보여주자는 의견이 있었으나, 만약 맵 마다 노트리스트 페이지네이션이 필요하면 URL 겹치는 문제 발생 
    • 새로운 방안을 모색하던 중, 결국 메인에서 그룹 카드 밖에 검색창을 두고 결과는 새로운 UI(page)로 나타내기로 결정 -> 여기에서 노트 리스트를 보여주는데 15개 기준으로 페이지네이션해서 보여줌
      • 여기에 나타나는 노트 리스트는 모든 그룹, 모든 맵이 다 섞여있는 리스트이기 때문에 필터를 다시 작성 해야함