You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: 20150724154819_add_waiting_payment_to_contribution_report.rb
    path of file: ./repos/catarse/db/migrate
    
    the code of the file until where you have to start completion: class AddWaitingPaymentToContributionReport < ActiveRecord::Migration
  def up
    execute <<-SQL
    DROP VIEW "1".contribution_reports_for_project_owners;
    CREATE VIEW "1".
    
  def down
    execute <<-SQL
    DROP VIEW "1".contribution_reports_for_project_owners;
    CREATE VIEW "1".contribution_reports_for_project_owners AS
    SELECT b.project_id,
      COALESCE(r.id, 0) AS reward_id,
      p.user_id AS project_owner_id,
      r.description AS reward_description,
      r.deliver_at::date AS deliver_at,
      pa.paid_at::date AS confirmed_at,
      pa.value AS contribution_value,
      pa.value * (( SELECT settings.value::numeric AS value
             FROM settings
            WHERE settings.name = 'catarse_fee'::text)) AS service_fee,
      u.email AS user_email,
      COALESCE(b.payer_document, u.cpf) AS cpf,
      u.name AS user_name,
      b.payer_email,
      pa.gateway,
      b.anonymous,
      pa.state,
      COALESCE(u.address_street, b.address_street) AS street,
      COALESCE(u.address_complement, b.address_complement) AS complement,
      COALESCE(u.address_number, b.address_number) AS address_number,
      COALESCE(u.address_neighbourhood, b.address_neighbourhood) AS neighbourhood,
      COALESCE(u.address_city, b.address_city) AS city,
      COALESCE(u.address_state, b.address_state) AS address_state,
      COALESCE(u.address_zip_code, b.address_zip_code) AS zip_code
     FROM contributions b
       JOIN users u ON u.id = b.user_id
       JOIN projects p ON b.project_id = p.id
       JOIN payments pa ON pa.contribution_id = b.id
       LEFT JOIN rewards r ON r.id = b.reward_id
    WHERE pa.state = ANY (ARRAY['paid'::character varying::text, 'pending'::character varying::text]);
    SQL
  end