来自“行为标签”的标签未显示

时间:2019-01-19 11:07:44

标签: ruby-on-rails ruby acts-as-taggable-on

我打算通过使用gem 'acts-as-taggable-on', '~> 5.0'实现标记系统,根据Hartl的教程扩展toDoList Rails 5应用程序。在添加标签之前,该应用程序当前支持许多用户帐户以及注册和登录功能。我正在遵循此video来帮助我实现它。

我已经更新了Micropost模型,共享的micropost表单和主要的micropost表单,这些表单负责在用户的主页上显示标签。

但是,即使在创建没有错误的标签之后。标签不会显示。有人可以建议错误的来源吗?如果您需要有关我的申请的更多信息,请告诉我。

这是我更改的文件的代码。

Micropost模型

class Micropost < ApplicationRecord
  belongs_to :user
  attr_accessor :tag_list 
  acts_as_taggable 
  default_scope -> { order(created_at: :desc) }
  validates :user_id, presence: true
  validates :content, presence: true, length: {maximum: 140 }

end

shared / _micropost_form.html.erb(用于添加任务)

<%= form_for(@micropost) do |f| %>
  <%= render 'shared/error_messages', object: f.object %>
  <div class="field">
    <%= f.label :tag_list, "Tags (separated by commas)" %><br />
    <%= f.text_field :tag_list %> 
  </div>
  <div class="field">
    <%= f.label :content %><br />
    <%= f.text_area :content, placeholder: "Add new task..." %>
  </div>
  <%= f.submit "Add Task", class: "btn btn-primary" %>
<% end %>

Micropost的主要表单(_micropost.html.erb,以查看当前任务)

<li id="micropost-<%= micropost.id %>">
  <%= link_to gravatar_for(micropost.user, size: 50), micropost.user %>
  <span class="user"><%= link_to micropost.user.name, micropost.user %></span>
  <span class="content"><%= micropost.content %></span>
  <p>
    Tags: <%= micropost.tag_list %>
  </p>
  <span class="timestamp">
    Posted <%= time_ago_in_words(micropost.created_at) %> ago.
    <% if current_user?(micropost.user) %>
      <%= link_to "Done", micropost, method: :delete,
                                   data: { confirm: "Keep up the good work!" } %>
    <% end %>
  </span>
</li>

Micropost控制器

class MicropostsController < ApplicationController
  before_action :logged_in_user, only: [:create, :destroy]
  before_action :correct_user,   only: :destroy

  def create
    @micropost = current_user.microposts.build(micropost_params)
    if @micropost.save
      flash[:success] = "Micropost created!"
      redirect_to root_url
    else
      @feed_items = []
      render 'static_pages/home'
    end
  end

  def destroy
    @micropost.destroy
    flash[:success] = "You have deleted a task!"
    redirect_to request.referrer || root_url
  end

  private

    def micropost_params
      params.require(:micropost).permit(:content, :tag_list)
    end

    def correct_user
      @micropost = current_user.microposts.find_by(id: params[:id])
      redirect_to root_url if @micropost.nil?
    end
end

在一个示例帐户上(某些帖子具有相同的内容,但标签不同,但尚未解决该错误)

Sample Account

更新:我根据注释更改了代码,并收到了新的错误消息。行错误是指save方法。

Error Message

0 个答案:

没有答案