Check that @config exists. Fixes #413 #2
Merged
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Error message is:
ActiveRecord::StatementInvalid: NoMethodError: undefined method `[]' for
nil:NilClass:
from octopus/lib/octopus/abstract_adapter.rb:23:in
octopus_shard' from octopus/lib/octopus/abstract_adapter.rb:12:in
instrument'from vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:478:in `log'
This has shown to surface in the ibm_db and sqlserver adapters.