我目前正在使用Ruby中的Acts_As_Votable gem來在每篇帖子上使用Like鏈接,以便用戶可以投票。我在這裏找到了一個很好的答案,這有助於做到這一點,但我試圖找出如何使用心臟圖標圖像而不是喜歡/不喜歡的文本。我希望圖像更新而不刷新,就像文本鏈接一樣,但無法弄清楚邏輯。下面是當前的代碼我使用:Ruby on Rails像圖片而不是文字的按鈕
控制器/ prides_controller.rb
def like
@pride = Pride.find(params[:id])
@pride.liked_by current_user
if request.xhr?
render json: { count: @pride.get_likes.size, id: params[:id] }
else
redirect_to @pride
end
end
def dislike
@pride = Pride.find(params[:id])
@pride.disliked_by current_user
if request.xhr?
render json: { count: @pride.get_likes.size, id: params[:id] }
else
redirect_to @pride
end
end
驕傲/ show.html.erb
<div class="single-heart-this">
<% if current_user.liked? @pride %>
<span class="heart-icon-loved">
<%= link_to "Dislike", dislike_pride_path(@pride), class: 'vote', method: :put, remote: true, data: { toggle_text: 'Like', toggle_href: like_pride_path(@pride), id: @pride.id } %></span>
<% else %>
<span class="heart-icon">
<%= link_to "Like", like_pride_path(@pride), class: 'vote', method: :put, remote: true, data: { toggle_text: 'Dislike', toggle_href: dislike_pride_path(@pride), id: @pride.id } %></span>
<% end %>
<span class="heart-no" data-id="<%= @pride.id %>"><%= @pride.get_likes.size %></span>
<% end %>
</div>
的JavaScript/pride.js。 erb
# Rails creates this event, when the link_to(remote: true)
# successfully executes
$(document).on 'ajax:success', 'a.vote', (status,data,xhr)->
# the `data` parameter is the decoded JSON object
$(".heart-no[data-id=#{data.id}]").text data.count
return
的JavaScript/prides.js.coffee
# Place all the behaviors and hooks related to the matching controller here.
# All this logic will automatically be available in application.js.
# You can use CoffeeScript in this file: http://coffeescript.org/
$(document).on 'ajax:success', 'a.vote', (status,data,xhr)->
# update counter
$(".heart-no[data-id=#{data.id}]").text data.count
# toggle links
$("a.vote[data-id=#{data.id}]").each ->
$a = $(this)
href = $a.attr 'href'
text = '$a.text()'
$a.text($a.data('toggle-text')).attr 'href', $a.data('toggle-href')
$a.data('toggle-text', 'text').data 'toggle-href', href
return
return
感謝您的幫助。
該部分使但我很困惑如何使圖像在點擊時自動改變,而用戶不必刷新頁面。現在,如果用戶點擊「喜歡」文本,類似的東西被計數,文本自動變成「不喜歡」,反之亦然。 – 2014-08-30 14:33:54