如何使用“ acts_as_votable” gem允许单个用户对单个帖子多次投票

Question

I've installed the 'acts_as_votable' gem, and am able to vote successfully. When I add the code from the documentation to be able to allow a single User to vote multiple times on a single Post it doesn't seem to work.

def upvote
    @video = Video.find(params[:id])
    @user = User.first
    @video.upvote_by @user, :duplicate => true
    redirect_to :back
end

def downvote
    @video = Video.find(params[:id])
    @video.downvote_by User.first, :duplicate => true
    redirect_to :back
end

Answer 1

Acts As Votable documentation states that you can send duplicate: true to vote_by like:

@video.vote_by voter: @user, duplicate: true

Now, looking at the source code, it seems like upvote_by is an alias for vote_up docs , and looking at vote_up definition :

def vote_up(voter, options = {})
  self.vote_by voter: voter, vote: true, vote_scope: options[:vote_scope], vote_weight: options[:vote_weight]
end

it never passes duplication option to vote_by .

So, your solution would be to use vote_by instead.