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根據我的要求,我需要爲所有名人投票,但如果我投票支持某個名人,它不應該允許在24小時內爲同一個名人投票。如何檢查用戶是否投票支持名人Rails 4?
Vote.rb
class Vote < ActiveRecord::Base
attr_accessible :celebrity_id, :user_id
belongs_to :user
belongs_to :celebrity, counter_cache: true
end
Celebrity.rb
class Celebrity < ActiveRecord::Base
attr_accessible :name, :gender, :category_id, :image, :votes_count
validates_presence_of :name
belongs_to :user
belongs_to :category
has_many :votes
end
我的控制器:
def vote
@celebrities = Celebrity.find(params[:id])
if current_user.votes.present?
if current_user.votes.last.updated_at < Time.now - 24.hours
@vote = current_user.votes.build(celebrity_id: @celebrities.id, :id => params[:vote])
@vote.save
end
respond_to do |format|
format.html { redirect_to ranking_screen_url }
format.json { render json: @vote, status: :created }
end
else
@vote = current_user.votes.build(celebrity_id: @celebrities.id, :id => params[:vote])
@vote.save
respond_to do |format|
format.html { redirect_to ranking_screen_url }
format.json { render json: @vote, status: :created }
end
end
end
而不是檢查current_user.votes.present?
我需要檢查用戶已經投票支持celebrity_id在票表。有人可以幫我從這裏出去嗎 ?