55 lines
1.3 KiB
Ruby
55 lines
1.3 KiB
Ruby
class PostVote < ApplicationRecord
|
|
belongs_to :post
|
|
belongs_to :user
|
|
|
|
validates :user_id, uniqueness: { scope: :post_id, message: "have already voted for this post" }
|
|
validates :score, inclusion: { in: [1, -1], message: "must be 1 or -1" }
|
|
|
|
after_create :update_score_after_create
|
|
after_destroy :update_score_after_destroy
|
|
|
|
scope :positive, -> { where("post_votes.score > 0") }
|
|
scope :negative, -> { where("post_votes.score < 0") }
|
|
scope :public_votes, -> { positive.where(user: User.has_public_favorites) }
|
|
|
|
deletable
|
|
|
|
def self.visible(user)
|
|
user.is_admin? ? all : where(user: user).or(public_votes)
|
|
end
|
|
|
|
def self.search(params)
|
|
q = search_attributes(params, :id, :created_at, :updated_at, :score, :user, :post)
|
|
|
|
q.apply_default_order(params)
|
|
end
|
|
|
|
def is_positive?
|
|
score > 0
|
|
end
|
|
|
|
def is_negative?
|
|
score < 0
|
|
end
|
|
|
|
def update_score_after_create
|
|
if is_positive?
|
|
Post.update_counters(post_id, { score: score, up_score: score })
|
|
else
|
|
Post.update_counters(post_id, { score: score, down_score: score })
|
|
end
|
|
end
|
|
|
|
def update_score_after_destroy
|
|
if is_positive?
|
|
Post.update_counters(post_id, { score: -score, up_score: -score })
|
|
else
|
|
Post.update_counters(post_id, { score: -score, down_score: -score })
|
|
end
|
|
end
|
|
|
|
def self.available_includes
|
|
[:user, :post]
|
|
end
|
|
end
|