search for: connection_cost

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2009 Nov 04
0
The error occurred while evaluating nil.prefetch_primary_key
...b:146:in `save'' from /home/markus/Development/GPT2/my_test2/vendor/rails/activerecord/lib/active_record/base.rb:693:in `create'' from (irb):5>> For this test I created a new rails-project (version 2.2.3). Models : class Connection < ActiveRecord::Base has_many :connection_costs end class Project < ActiveRecord::Base has_many :connection_costs end class WaySearchRun < ActiveRecord::Base has_many :connection_costs end class ConnectionCost < ActiveRecord::Base belongs_to :connection # dosn''t WORK !!!! belong...