joakimk/pipeline

class Revision < ActiveRecord::Base
  validates :name, format: /\A[a-z0-9]{40}\z/

  belongs_to :project
  has_many :builds, dependent: :destroy

  def self.find_or_create_for_project_and_name(project, name)
    where(project_id: project, name: name).first_or_create!
  end

  def github_url
    if project.github_url
      "#{project.github_url}/commit/#{name}"
    else
      nil
    end
  end

  def newer_revisions
    project.revisions.where("id > ?", id)
  end

  def build_mappings
    BuildMapping.build_list(project.mappings)
  end

  def for_build(name)
    builds.where(name: name).first
  end
end