Smartystreets invalid zipcode for ActiveRecord object raises NoMethodError

[gdomingu]

BEFORE POSTING AN ISSUE, PLEASE MAKE SURE THE PROBLEM IS NOT ADDRESSED IN THE README!

Expected behavior

object.geocode => nil

Actual behavior

object.geocode => 
NoMethodError: undefined method `[]' for nil:NilClass
	from /usr/local/lib/ruby/gems/2.4.0/gems/geocoder-1.5.1/lib/geocoder/results/base.rb:47:in `latitude'
	from /usr/local/lib/ruby/gems/2.4.0/gems/geocoder-1.5.1/lib/geocoder/stores/active_record.rb:300:in `block in geocode'
	from /usr/local/lib/ruby/gems/2.4.0/gems/geocoder-1.5.1/lib/geocoder/stores/base.rb:110:in `do_lookup'
	from /usr/local/lib/ruby/gems/2.4.0/gems/geocoder-1.5.1/lib/geocoder/stores/active_record.rb:298:in `geocode'

Noticed that when using Geocoder.search with the invalid zip get back a result.

results = Geocoder.search("10300")
results.first            
=> #<Geocoder::Result::SmartyStreets:0x000055729111ebe0 @data={"input_index"=>0, "status"=>"invalid_zipcode", "reason"=>"Invalid ZIP Code."}, @cache_hit=true>

Because the result is not an empty array I thought it might be causing some issues.

Steps to reproduce

# config/initializers/geocoder.rb
Geocoder.configure(
	lookup: :smarty_streets,
	api_key: ['auth_id', 'auth_token'],
)

rails g model address zip
rails db:migrate

class Address < ApplicationRecord
  geocoded_by :zip
end

address = Address.create(zip: "10300")
address.geocode

Environment info

• Geocoder version: 1.5.1
• Rails version: 5.0.0
• Database (if applicable):
• Lookup (if applicable): Smartystreets

[alexreisner]

Yes, this looks like a bug in Geocoder::Result::SmartyStreets#coordinates. Thanks for reporting!