149 lines
3.3 KiB
Ruby
149 lines
3.3 KiB
Ruby
class Vote < ActiveRecord::Base
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belongs_to :user
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belongs_to :story
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STORY_REASONS = {
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"O" => "Off-topic",
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"Q" => "Low Quality",
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"A" => "Already Posted",
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"T" => "Poorly Tagged",
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"L" => "Poorly Titled",
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"S" => "Spam",
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"" => "Cancel",
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}
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COMMENT_REASONS = {
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"O" => "Off-topic",
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"I" => "Incorrect",
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"M" => "Me-too",
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"T" => "Troll",
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"S" => "Spam",
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"" => "Cancel",
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}
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def self.votes_by_user_for_stories_hash(user, stories)
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votes = {}
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Vote.where(:user_id => user, :story_id => stories,
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:comment_id => nil).each do |v|
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votes[v.story_id] = v.vote
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end
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votes
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end
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def self.comment_votes_by_user_for_story_hash(user_id, story_id)
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votes = {}
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Vote.where(
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:user_id => user_id, :story_id => story_id
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).where(
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"comment_id IS NOT NULL"
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).each do |v|
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votes[v.comment_id] = { :vote => v.vote, :reason => v.reason }
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end
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votes
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end
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def self.story_votes_by_user_for_story_ids_hash(user_id, story_ids)
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if story_ids.empty?
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{}
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else
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votes = self.where(
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:user_id => user_id,
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:comment_id => nil,
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:story_id => story_ids,
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)
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votes.inject({}) do |memo, v|
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memo[v.story_id] = { :vote => v.vote, :reason => v.reason }
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memo
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end
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end
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end
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def self.comment_votes_by_user_for_comment_ids_hash(user_id, comment_ids)
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if comment_ids.empty?
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{}
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else
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votes = self.where(
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:user_id => user_id,
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:comment_id => comment_ids,
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)
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votes.inject({}) do |memo, v|
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memo[v.comment_id] = { :vote => v.vote, :reason => v.reason }
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memo
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end
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end
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end
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def self.vote_thusly_on_story_or_comment_for_user_because(vote, story_id,
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comment_id, user_id, reason, update_counters = true)
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v = Vote.where(:user_id => user_id, :story_id => story_id,
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:comment_id => comment_id).first_or_initialize
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if !v.new_record? && v.vote == vote
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return
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end
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upvote = 0
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downvote = 0
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Vote.transaction do
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# unvote
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if vote == 0
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if !v.new_record?
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if v.vote == -1
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downvote = -1
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else
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upvote = -1
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end
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end
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v.destroy
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# new vote or change vote
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else
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if v.new_record?
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if vote == -1
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downvote = 1
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else
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upvote = 1
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end
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elsif v.vote == -1
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# changing downvote to upvote
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downvote = -1
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upvote = 1
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elsif v.vote == 1
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# changing upvote to downvote
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upvote = -1
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downvote = 1
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end
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v.vote = vote
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v.reason = reason
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v.save!
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end
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if update_counters && (downvote != 0 || upvote != 0)
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if v.comment_id
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c = Comment.find(v.comment_id)
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if c.user_id != user_id
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User.update_counters c.user_id, :karma => upvote - downvote
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end
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c.give_upvote_or_downvote_and_recalculate_confidence!(upvote,
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downvote)
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else
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s = Story.find(v.story_id)
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if s.user_id != user_id
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User.update_counters s.user_id, :karma => upvote - downvote
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end
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s.give_upvote_or_downvote_and_recalculate_hotness!(upvote, downvote)
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end
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end
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end
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end
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end
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