>> DogFood.deploy_all
ActiveRecord::StatementInvalid: PGError: ERROR:  null value in column "user_id" violates not-null constraint
: INSERT INTO collaborators ("app_id", "access", "user_id") VALUES(298, E'edit', NULL)
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:150:in `log'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/connection_adapters/postgresql_adapter.rb:407:in `execute'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:156:in `insert_sql'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:44:in `insert_without_query_dirty'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/connection_adapters/abstract/query_cache.rb:19:in `insert'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/connection_adapters/postgresql_adapter.rb:390:in `insert'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/base.rb:2272:in `create_without_callbacks'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/callbacks.rb:226:in `create_without_timestamps'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/timestamp.rb:29:in `create'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/base.rb:2238:in `create_or_update_without_callbacks'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/callbacks.rb:213:in `create_or_update'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/base.rb:1978:in `save_without_validation!'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/validations.rb:944:in `save_without_transactions!'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/transactions.rb:112:in `save!'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:66:in `transaction'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/transactions.rb:80:in `transaction'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/transactions.rb:100:in `transaction'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/transactions.rb:112:in `save!'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/transactions.rb:120:in `rollback_active_record_state!'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/transactions.rb:112:in `save!'
        from /usr/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/validations.rb:909:in `create!'
        from /mnt/home/core/lib/dog_food.rb:63:in `enabling_direwolf_access'
        from /mnt/home/core/lib/dog_food.rb:47:in `clone_and_update'
        from /mnt/home/core/lib/dog_food.rb:43:in `create'
        from /mnt/home/core/lib/dog_food.rb:24:in `deploy'
        from /mnt/home/core/lib/dog_food.rb:13:in `deploy_all'
        from /mnt/home/core/lib/dog_food.rb:13:in `each'
        from /mnt/home/core/lib/dog_food.rb:13:in `deploy_all'