从订单中获取，会员联系信息。

members.rb

def mobile_specs(mobile)
  mobile = mobile.to_s[0..2].to_i # 号段
  china_mobile = { 
    '2G' => [134, 135, 136, 137, 138, 139, 150, 151, 152, 157, 158, 159, 182], 
    '3G' => [187, 188]
  }
  china_unicom = { 
    '2G' => [130, 131, 132, 155, 156], 
    '3G' => [185, 186]
  }
  china_telecom = { 
    '2G' => [133, 153], 
    '3G' => [180, 189]
  }
  case
  when china_mobile['2G'].include?(mobile)
    { carrier: '中国移动', network: '2G' }
  when china_mobile['3G'].include?(mobile)
    { carrier: '中国移动', network: '3G' }
  when china_unicom['2G'].include?(mobile)
    { carrier: '中国联通', network: '2G' }
  when china_unicom['3G'].include?(mobile)
    { carrier: '中国联通', network: '3G' }
  when china_telecom['2G'].include?(mobile)
    { carrier: '中国电信', network: '2G' }
  when china_telecom['3G'].include?(mobile)
    { carrier: '中国电信', network: '3G' }
  else
    { carrier: mobile, network: mobile }
  end
end
def cache_receivers(member, trade)
    current_receiver = nil
    if member.receivers.exists?
      current_receiver = member.receivers.where(
        receiver_mobile: trade.receiver_mobile,
        receiver_name: trade.receiver_name,
        receiver_address: trade.receiver_address,
      ).last
    end
    # 检测：手机号、姓名、地址，是否存在。
    if current_receiver.nil?
      specs = mobile_specs(trade.receiver_mobile)
      member.receivers << Receiver.new({
        receiver_address: trade.receiver_address,
        receiver_city: trade.receiver_city,
        receiver_district: trade.receiver_district,
        receiver_mobile: trade.receiver_mobile,
        receiver_name: trade.receiver_name,
        receiver_state: trade.receiver_state, 
        receiver_zip: trade.receiver_zip,
        mobile_carrier: specs[:carrier],
        mobile_network: specs[:network],
      })
    member.save
  end
end
def process(user)
  trades = user.trades
  total = trades.count
  user.trades.each do |trade|
    puts "======================#{total}"
    member = user.members.where(buyer_nick: trade.buyer_nick).last
    cache_receivers(member, trade) if member
    total -= 1
  end
end
user = User.all[5]
process(user)