javascript - Rails - 使用新表条目刷新页面

Question

我试图实现的目标是让用户单击一个按钮，该按钮将刷新页面过滤该搜索。我的页面专门针对音乐艺术家，希望一旦用户选择“流行”，页面刷新时仅显示“流行”艺术家。

这是我用来显示艺术家的 html + ruby​​:

<% #prints the artists that match the search, prints all for empty search %>
      <% @artists.each_slice(3) do |artists| %>
            <div class="row">
              <% artists.each do |artist| %>
                    <div class = "artist_images">
                      <%= link_to  image_tag(artist.artist_art, class: 'show_image'), artist_path(artist) %><br/><br/>
                    </div>
              <% end %>
            </div>
      <% end %>

      <% #prints message showing that the search does not match %>
      <% if !@artists.present? %>
        <h3><center style = "color: white">There are no artists containing the term(s) "<%= params[:search] %>". Please try 'Adele', 'Drake', 'Kanye West', or 'Taylor Swift'</center></h3>
      <% end %>

Controller 有以下方法:

  def index
    @artists = Artist.all
  end

  def randomPop
    @artists = Artist.where(:genre => "\nPop").random(9)
  end

有谁知道如何通过单击按钮将变量 @artists 从“所有艺术家”更改为“流行音乐艺术家”？

Answer 1

在你看来，

<%= button_to "Pop", artists_path, method: :get, params: { artist_genre: "Pop" } %>

在你的 Controller 中，

def index
  if params[:artist_genre]
    @artists = Artist.where(:genre => params[:artist_genre]).random(9)
  else
    @artists = Artist.all
  end
end