Question

我试图在我的rails应用中实现like / different按钮。现在，当我点击“赞”按钮时，类似的内容会保存在数据库中，但我的控制台会发出此错误：

ArgumentError (wrong number of arguments (given 2, expected 1)):

我明白这是说我应该只提供1个参数而我提供2个，但是当我摆脱：投票论证时它说我错过了一个投票参数，但是当我摆脱它时我得到这个错误的另一个论点：

ActionView::Template::Error (No route matches {:action=>"index", :controller=>"votes", :id=>"36", :vote=>{:food_id=>36, :user_id=>15}} missing required keys: [:user_id]):

这是我的部分形式：

<% unless current_user.votes.pluck(:food_id).include?(food.id) %>
    <%= button_to "Like This Food", user_votes_path({:user_id => current_user.id, :vote => { food_id: food.id, user_id: current_user.id }}), :remote => true, :method => "post" %>
<% else %>
    <% vote = food.votes.where(user_id: current_user.id).first %>
    <%= button_to "Unlike This Food", user_vote_path(current_user, vote), :remote => true, method: "delete", :class => "unlike-button" %>
<% end %>

class VotesController < ApplicationController

  def index
    @votes = Food.find(params[:food_id]).votes
  end

  def new
    @vote = Vote.new
  end

  def create
    @user = current_user
    @vote = Vote.new(vote_params)


    if @vote.save!
      @food = @vote.food
      respond_to do |format|
        format.html {redirect_to :back, notice: "Liked!"}
        format.js  :locals => {:food => @food, :user_id => current_user.id} 
      end

      puts @vote.food.id
    else
      puts "No"
      redirect_back(fallback_location: root_path)
    end
  end

  def show
    @user = current_user
    @vote = Vote.find(params[:id])
  end

  def destroy
    @vote = Vote.find(params[:id])

    if @vote.destroy!
      respond_to do |format|
        format.html {redirect_to :back, notice: "Unliked!"}
        format.js
      end
    else
      puts "NOOOOOO"
    end
  end

  private

  def vote_params
    params.require(:vote).permit(:food_id, :user_id)
  end
end

create.js.erb

console.log('see... this is a regular javascript call.');
<%= escape_javascript render(:partial => 'shared/vote_form', :locals => { :food => food, :user_id => current_user.id }) %>

Rails.application.routes.draw do

  get 'home', :to => 'static_pages#home'
  get 'browse', :to => 'static_pages#browse'
  get 'static_pages/about'
  get 'static_pages/contact'

  devise_for :users, :controllers => { :omniauth_callbacks => "users/omniauth_callbacks" }
  devise_scope :user do
    delete 'sign_out', :to => 'devise/sessions#destroy'
    root 'devise/sessions#new'
  end

  resources :users do
    resources :votes
  end

  resources :foods do
    member do
      put "result", to: "foods#result"
    end
  end

  get 'soups', :to => 'foods#soup'
  get 'salads', :to => 'foods#salad'
  # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
end

参数错误（给定2，预期1）

0 个答案: