37 lines
949 B
Ruby
37 lines
949 B
Ruby
class CommentVote < ApplicationRecord
|
|
class Error < Exception ; end
|
|
|
|
belongs_to :comment
|
|
belongs_to :user
|
|
before_validation :initialize_user, :on => :create
|
|
validates_presence_of :score
|
|
validates_uniqueness_of :user_id, :scope => :comment_id, :message => "have already voted for this comment"
|
|
validate :validate_user_can_vote
|
|
validate :validate_comment_can_be_down_voted
|
|
validates_inclusion_of :score, :in => [-1, 1], :message => "must be 1 or -1"
|
|
|
|
def validate_user_can_vote
|
|
if !user.can_comment_vote?
|
|
errors.add :base, "You cannot vote on more than 10 comments per hour"
|
|
end
|
|
end
|
|
|
|
def validate_comment_can_be_down_voted
|
|
if is_positive? && comment.creator == CurrentUser.user
|
|
errors.add :base, "You cannot upvote your own comments"
|
|
end
|
|
end
|
|
|
|
def is_positive?
|
|
score == 1
|
|
end
|
|
|
|
def is_negative?
|
|
score == -1
|
|
end
|
|
|
|
def initialize_user
|
|
self.user_id = CurrentUser.user.id
|
|
end
|
|
end
|