Javascript 切换按钮操作OnClick-JQuery+;轨道
我想实现一个Subscribe/Unsubscribe切换按钮,它创建/销毁Subscription objectonClick,但我很难找到一个优雅的解决方案 我尝试了多种想法,并得出结论,我需要使用Javascript来实现这一点。但是,我不确定当用户单击按钮时是否/如何同时更改按钮文本及其操作。请参见下面的“订阅”按钮和“未订阅”按钮 任何反馈或建议将不胜感激 艺术家索引视图:Javascript 切换按钮操作OnClick-JQuery+;轨道,javascript,jquery,ruby-on-rails,Javascript,Jquery,Ruby On Rails,我想实现一个Subscribe/Unsubscribe切换按钮,它创建/销毁Subscription objectonClick,但我很难找到一个优雅的解决方案 我尝试了多种想法,并得出结论,我需要使用Javascript来实现这一点。但是,我不确定当用户单击按钮时是否/如何同时更改按钮文本及其操作。请参见下面的“订阅”按钮和“未订阅”按钮 任何反馈或建议将不胜感激 艺术家索引视图: <% @artists.each do |artist| %> <tr id="tr_&l
<% @artists.each do |artist| %>
<tr id="tr_<%=artist.id%>">
<td><%= artist.name %></td>
<td><%= artist.artist_data["name"] %></td>
<td><%= artist.artist_data["facebook_tour_dates_url"] %></td>
<td><%= artist.artist_data["mbid"] %></td>
<td><%= artist.artist_data["upcoming_event_count"] %></td>
<% if artist.is_not_subscribed?(user_id: @user.id, artist_id: artist.id)%>
<td><%= button_to 'Subscribe', user_subscriptions_path(@user, artist_id: artist.id), method: :post, id: "subscribe_link_#{artist.id}", class: "subscribe", remote: true %></td>
<% else %>
<td><%= button_to 'Unsubscribe', user_subscription_path(@user, artist.find_subscription(user_id: @user.id, artist_id: artist.id)), method: :delete, id: "unsubscribe_link_#{artist.id}", class: "unsubscribe", remote: true %></td>
<% end %>
<% end %>
订阅模式:
class Subscription < ActiveRecord::Base
belongs_to :artist
belongs_to :user
accepts_nested_attributes_for :artist
end
类订阅
艺术家模型:
class Artist < ActiveRecord::Base
include Subscribable
has_and_belongs_to_many :events
has_many :subscriptions
has_many :users, through: :subscriptions
validate :artist_already_exists?
end
class-Artist
用户模型:
class User < ActiveRecord::Base
include Subscribable
has_many :subscriptions
has_many :artists, through: :subscriptions
accepts_nested_attributes_for :subscriptions
end
class用户
受此启发,我得以实现以下解决方案。如果你有关于如何更好地设计它的反馈或建议,不要害羞。我很感激你的想法
TLDR:添加了一个link\u to\u toggle
方法来清理视图。利用Javascript的replaceWith
在每次点击链接时调用link\u to\u切换
views/artists/index.html.erb
<% @artists.each do |artist| %>
<tr id="tr_<%=artist.id%>">
<td><%= artist.name %></td>
<td><%= artist.artist_data["name"] %></td>
<td><%= artist.artist_data["facebook_tour_dates_url"] %></td>
<td><%= artist.artist_data["mbid"] %></td>
<td><%= artist.artist_data["upcoming_event_count"] %></td>
<td><%= link_to_toggle_user_subscription(user:@user, artist:artist)%></td>
<td><%= link_to 'Edit', edit_artist_path(artist) %></td>
<td><%= link_to 'Destroy', artist, method: :delete, data: { confirm: 'Are you sure?' } %></td>
</tr>
<% end %>
控制器/订阅\u controller.rb
def create
@user = current_user
@artist = Artist.find(params[:artist_id])
@subscription = @user.subscriptions.build(subscription_params)
@subscription.artist_id = params[:artist_id]
respond_to do |format|
if @subscription.save
format.html { redirect_to artists_path, notice: 'Subscription was successfully created.' }
format.json { render :show, status: :created, location: @subscription }
format.js
else
format.html { render :new }
format.json { render json: @subscription.errors, status: :unprocessable_entity }
format.js { render js: @subscription, notice:'Unable to create Subscription' }
end
end
end
def destroy
@user = current_user
@subscription = Subscription.find(params[:id])
@artist = Artist.find(params[:artist_id])
@subscription.destroy
respond_to do |format|
format.html { redirect_to user_subscriptions_url, notice: 'Subscription was successfully destroyed.' }
format.json { head :no_content }
format.js
end
end
视图/订阅/create.js.erb
$('#subscribe_link_<%=@artist.id%>').replaceWith("<%=j link_to_toggle_user_subscription(user:@user, artist:@artist)%>");
$('subscribe\u link')。替换为(“”);
视图/订阅/destroy.js.erb
$('#unsubscribe_link_<%=@artist.id%>').replaceWith("<%=j link_to_toggle_user_subscription(user:@user, artist:@artist)%>");
$('unsubscribe\u link')。替换为(“”);
$('#subscribe_link_<%=@artist.id%>').replaceWith("<%=j link_to_toggle_user_subscription(user:@user, artist:@artist)%>");
$('#unsubscribe_link_<%=@artist.id%>').replaceWith("<%=j link_to_toggle_user_subscription(user:@user, artist:@artist)%>");