47 lines
1.1 KiB
Ruby
47 lines
1.1 KiB
Ruby
class CommentVote < ActiveRecord::Base
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class Error < Exception ; end
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belongs_to :comment
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belongs_to :user
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before_validation :initialize_user, :on => :create
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validates_presence_of :user_id, :comment_id, :score
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validates_uniqueness_of :user_id, :scope => :comment_id, :message => "has already voted for this comment"
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validate :validate_user_can_vote
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validate :validate_comment_can_be_down_voted
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validates_inclusion_of :score, :in => [-1, 1], :message => "must be 1 or -1"
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def self.prune!
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destroy_all(["created_at < ?", 14.days.ago])
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end
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def validate_user_can_vote
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if !user.can_comment_vote?
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errors.add :user, "can not comment vote"
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false
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else
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true
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end
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end
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def validate_comment_can_be_down_voted
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if is_negative? && comment.creator.is_janitor?
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errors.add :user, "can not downvote a janitor comment"
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false
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else
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true
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end
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end
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def is_positive?
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score == 1
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end
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def is_negative?
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score == -1
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end
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def initialize_user
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self.user_id = CurrentUser.user.id
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end
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end
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