97 lines
2.4 KiB
Ruby
97 lines
2.4 KiB
Ruby
class Pool < ActiveRecord::Base
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validates_uniqueness_of :name
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validates_format_of :name, :with => /\A[^\s;,]+\Z/, :on => :create, :message => "cannot have whitespace, commas, or semicolons"
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belongs_to :creator, :class_name => "User"
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belongs_to :updater, :class_name => "User"
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has_many :versions, :class_name => "PoolVersion", :dependent => :destroy, :order => "pool_versions.id ASC"
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before_validation :normalize_name
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before_validation :initialize_creator, :on => :create
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after_save :create_version
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attr_accessible :name, :description, :post_ids, :is_active
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def self.name_to_id(name)
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select_value_sql("SELECT id FROM pools WHERE name = ?", name.downcase)
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end
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def self.create_anonymous(creator, creator_ip_addr)
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Pool.new do |pool|
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pool.name = "TEMP:#{Time.now.to_f}.#{rand(1_000_000)}"
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pool.creator = creator
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pool.save
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pool.name = "anonymous:#{pool.id}"
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pool.save
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end
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end
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def initialize_creator
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self.creator_id = CurrentUser.id
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end
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def normalize_name
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self.name = name.downcase
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end
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def revert_to!(version)
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self.post_ids = version.post_ids
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save
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end
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def add_post!(post)
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return if post_ids =~ /(?:\A| )#{post.id}(?:\Z| )/
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self.post_ids += " #{post.id}"
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self.post_ids = post_ids.strip
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save
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end
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def remove_post!(post)
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self.post_ids = post_ids.gsub(/(?:\A| )#{post.id}(?:\Z| )/, " ")
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self.post_ids = post_ids.strip
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save
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end
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def posts(options = {})
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offset = options[:offset] || 0
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limit = options[:limit] || 20
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ids = post_id_array[offset, limit]
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Post.where(["id IN (?)", ids])
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end
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def post_id_array
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@post_id_array ||= post_ids.scan(/\d+/).map(&:to_i)
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end
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def clear_post_id_array
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@post_id_array = nil
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end
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def neighbor_posts(post)
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post_ids =~ /\A#{post.id} (\d+)|(\d+) #{post.id} (\d+)|(\d+) #{post.id}\Z/
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if $2 && $3
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{:previous => $2.to_i, :next => $3.to_i}
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elsif $1
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{:next => $1.to_i}
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elsif $4
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{:previous => $4.to_i}
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else
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nil
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end
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end
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def create_version
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last_version = versions.last
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if last_version && CurrentUser.ip_addr == last_version.updater_ip_addr && CurrentUser.id == last_version.updater_id
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last_version.update_attribute(:post_ids, post_ids)
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else
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versions.create(:post_ids => post_ids)
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end
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end
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def reload(options = {})
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super
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clear_post_id_array
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end
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end
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