72 lines
1.6 KiB
Ruby
72 lines
1.6 KiB
Ruby
class PoolVersion < ActiveRecord::Base
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class Error < Exception ; end
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validates_presence_of :updater_id, :updater_ip_addr
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belongs_to :pool
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belongs_to :updater, :class_name => "User"
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before_validation :initialize_updater
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module SearchMethods
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def for_user(user_id)
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where("updater_id = ?", user_id)
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end
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def search(params)
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q = scoped
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return q if params.blank?
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if params[:updater_id].present?
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q = q.for_user(params[:updater_id].to_i)
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end
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if params[:updater_name].present?
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q = q.where("updater_id = (select _.id from users _ where lower(_.name) = ?)", params[:updater_name].mb_chars.downcase)
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end
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if params[:pool_id].present?
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q = q.where("pool_id = ?", params[:pool_id].to_i)
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end
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q
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end
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end
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extend SearchMethods
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def updater_name
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User.id_to_name(updater_id)
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end
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def pretty_name
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name.tr("_", " ")
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end
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def initialize_updater
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self.updater_id = CurrentUser.id
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self.updater_ip_addr = CurrentUser.ip_addr
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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 diff(version)
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new_posts = post_id_array
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old_posts = version.present? ? version.post_id_array : []
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return {
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:added_posts => new_posts - old_posts,
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:removed_posts => old_posts - new_posts,
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:unchanged_posts => new_posts & old_posts
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}
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end
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def changes
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@changes ||= diff(previous)
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end
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def previous
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PoolVersion.where(["pool_id = ? and updated_at < ?", pool_id, updated_at]).order("updated_at desc").first
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end
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end
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