announcement-test/app/views/announcements/show.html.erb

<%
	require 'announcements_helper'
	params = OrbitHelper.params
    page = Page.where(url:params['url']).first
    @show_back_and_next_flag = 0
    if page.methods.include? 'select_option_items'.to_sym
      ModuleApp.all.select{|tmp| tmp.key.to_s=='announcement'}.each do |modile_app|
        @show_option_items = modile_app.show_option_items rescue nil
      end
      page.select_option_items.each do |select_option_item|
        if !(@show_option_items.nil?) && select_option_item.field_name == @show_option_items.keys.first.to_s
          value = YAML.load(select_option_item.value)
          if value[I18n.locale] == t('announcement.not_show')
            @show_back_and_next_flag = 0
          elsif value[I18n.locale] == t('announcement.show_top')
            @show_back_and_next_flag = 1
          elsif value[I18n.locale] == t('announcement.show_bottom')
            @show_back_and_next_flag = 2
          end
        end
      end
    end
    if @show_back_and_next_flag != 0
      uid = params['uid']
      announcements,sorted = get_sorted_annc
      now_index = sorted.to_enum.with_index.select{|v| v[0].uid==uid}[0][1]
      if now_index != 0
        prev_result = sorted[now_index-1]
        prev_url = params['url'] + '/' + prev_result.to_param
        prev_content = "<a href='#{prev_url}' class='prev'><b>#{t('announcement.prev')}</b><p>#{prev_result['title'][I18n.locale]}</p></a>"
      end
      if now_index != sorted.length-1
        next_result = sorted[now_index+1]
        next_url = params['url'] + '/' + next_result.to_param
        next_content = "<a href='#{next_url}' class='next'><b>#{t('announcement.next')}</b><p>#{next_result['title'][I18n.locale]}</p></a>"
      end
      content = "<div class='see_more_boxTitle'>#{prev_content}#{next_content}</div>".html_safe
    end
%>
<% if @show_back_and_next_flag!=0 %>
  <style type="text/css">
    .see_more_boxTitle{
      display: flex;
      margin: 1em 0em;
      padding: 1em;
      border: 0.2em solid;
    }
    a.prev, a.next{
      width: 50%;
      border: 0.2em solid;
      padding: 1em;
      flex: 1;
    }
    a.next{
      margin-left: 1em;
    }
    a.prev{
      margin-right: 1em;
    }
  </style>
<% end %>

<% if @show_back_and_next_flag==1 %>
<%= content %>
<% end %>
<%= render_view %>
<% if @show_back_and_next_flag==2 %>
<%= content %>
<% end %>