大佬教程收集整理的这篇文章主要介绍了ruby-on-rails – Google-maps-for-Rails – 未定义的方法`gmaps’for(object)in rake task，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。
enter code here troy$rake populate:scans --trace ** Invoke populate:scans (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute populate:scans http://goo.gl/fb/977ze Sat,16 Jul 2011 19:43:59 GMT 47.676506 -122.121872 91df0f32209c5212XXXXXXXXXXXXXXX rake aborted! undefined method `gmaps' for #<Scan:0x000001051fb9a8> /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activemodel-3.0.9/lib/active_model/attribute_methods.rb:392:in `method_missing' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.9/lib/active_record/attribute_methods.rb:46:in `method_missing' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/gmaps4rails-0.9.1/lib/gmaps4rails/acts_as_gmappable.rb:12:in `process_geocoding' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.9/lib/active_support/callBACks.rb:415:in `_run_validate_callBACks' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activemodel-3.0.9/lib/active_model/validations.rb:212:in `run_validations!' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activemodel-3.0.9/lib/active_model/validations/callBACks.rb:67:in `block in run_validations!' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.9/lib/active_support/callBACks.rb:414:in `_run_validation_callBACks' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activemodel-3.0.9/lib/active_model/validations/callBACks.rb:67:in `run_validations!' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activemodel-3.0.9/lib/active_model/validations.rb:179:in `valid?' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.9/lib/active_record/validations.rb:55:in `valid?' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.9/lib/active_record/validations.rb:75:in `perform_validations' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.9/lib/active_record/validations.rb:43:in `save' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.9/lib/active_record/attribute_methods/dirty.rb:21:in `save' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.9/lib/active_record/transactions.rb:240:in `block (2 levels) in save' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.9/lib/active_record/transactions.rb:292:in `block in with_transaction_returning_status' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.9/lib/active_record/connection_adapters/abstract/database_statements.rb:139:in `transaction' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.9/lib/active_record/transactions.rb:207:in `transaction' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.9/lib/active_record/transactions.rb:290:in `with_transaction_returning_status' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.9/lib/active_record/transactions.rb:240:in `block in save' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.9/lib/active_record/transactions.rb:251:in `rollBACk_active_record_state!' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.9/lib/active_record/transactions.rb:239:in `save' /Users/troy/Documents/projects/qrbrowser/lib/tasks/populate.rake:42:in `block (3 levels) in <top (required)>' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/nokogiri-1.5.0/lib/nokogiri/xml/node_set.rb:239:in `block in each' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/nokogiri-1.5.0/lib/nokogiri/xml/node_set.rb:238:in `upto' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/nokogiri-1.5.0/lib/nokogiri/xml/node_set.rb:238:in `each' /Users/troy/Documents/projects/qrbrowser/lib/tasks/populate.rake:23:in `block (2 levels) in <top (required)>' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/task.rb:205:in `call' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/task.rb:205:in `block in execute' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/task.rb:200:in `each' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/task.rb:200:in `execute' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/task.rb:158:in `block in invoke_with_call_chain' /Users/troy/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/task.rb:151:in `invoke_with_call_chain' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/task.rb:144:in `invoke' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/application.rb:112:in `invoke_task' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/application.rb:90:in `block (2 levels) in top_level' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/application.rb:90:in `each' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/application.rb:90:in `block in top_level' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/application.rb:129:in `standard_exception_handling' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/application.rb:84:in `top_level' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/application.rb:62:in `block in run' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/application.rb:129:in `standard_exception_handling' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/lib/rake/application.rb:59:in `run' /Users/troy/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.9.2/bin/rake:32:in `<top (required)>' /Users/troy/.rvm/gems/ruby-1.9.2-p180/bin/rake:19:in `load' /Users/troy/.rvm/gems/ruby-1.9.2-p180/bin/rake:19:in `<main>' Tasks: TOP => populate:scans
acts_as_gmappable :process_geocoding => false
解决方案2：
当您创建模型的实例时,请执行以下操作：
@scan.instance_eval do
def process_geocoding
true
end
end
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