I don't know much about dm-0.9.11 but this looks like it should work
with the 0.10.x series. If that's an option for you, you could try to
upgrade to either dm-0.10.1 (which is available as a gem), or even
better, upgrade to the latest code from git repositories. You can have
a look at http://sick.snusnu.info/2009/06/03/migrating-to-datamapper-0100/
for help on how to migrate from 0.9.11 to 0.10.x. Also, there are
instructions on how to fetch the latest git version.
HTH
snusnu
On Tue, Dec 1, 2009 at 11:11, sankar <esankaranaraya...@gmail.com> wrote:
> hi,
> i got the following error while update records, Please help me why i
> got this error and also i attach my sample code in bottom of error
> message.
>
> /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/associations/
> one_to_many.rb:302:in `save_resource': undefined method
> `attach_parent' for #<DataMapper::Associations::RelationshipChain:
> 0xb7751fa4> (NoMethodError)
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/relationship.rb:172:in `with_repository'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> support/kernel.rb:6:in `repository'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core.rb:
> 181:in `repository'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> repository.rb:44:in `scope'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core.rb:
> 181:in `repository'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> support/kernel.rb:6:in `repository'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/relationship.rb:172:in `with_repository'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/one_to_many.rb:298:in `save_resource'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/one_to_many.rb:210:in `save'
> from /usr/lib/ruby/gems/1.8/gems/extlib-0.9.13/lib/extlib/
> lazy_array.rb:452:in `each'
> from /usr/lib/ruby/gems/1.8/gems/extlib-0.9.13/lib/extlib/
> lazy_array.rb:452:in `each'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/one_to_many.rb:309:in `send'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/one_to_many.rb:309:in `method_missing'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/one_to_many.rb:210:in `save'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> resource.rb:301:in `hookable__save_nan_before_advised'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> resource.rb:301:in `each'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> resource.rb:301:in `hookable__save_nan_before_advised'
> from /usr/lib/ruby/gems/1.8/gems/extlib-0.9.13/lib/extlib/
> hook.rb:299:in `save'
> from /usr/lib/ruby/gems/1.8/gems/extlib-0.9.13/lib/extlib/
> hook.rb:297:in `catch'
> from /usr/lib/ruby/gems/1.8/gems/extlib-0.9.13/lib/extlib/
> hook.rb:297:in `save'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/one_to_many.rb:303:in `save_resource'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/relationship.rb:172:in `with_repository'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> support/kernel.rb:6:in `repository'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core.rb:
> 181:in `repository'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> repository.rb:44:in `scope'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core.rb:
> 181:in `repository'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> support/kernel.rb:6:in `repository'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/relationship.rb:172:in `with_repository'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/one_to_many.rb:298:in `save_resource'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/one_to_many.rb:210:in `save'
> from /usr/lib/ruby/gems/1.8/gems/extlib-0.9.13/lib/extlib/
> lazy_array.rb:452:in `each'
> from /usr/lib/ruby/gems/1.8/gems/extlib-0.9.13/lib/extlib/
> lazy_array.rb:452:in `each'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/one_to_many.rb:309:in `send'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/one_to_many.rb:309:in `method_missing'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> associations/one_to_many.rb:210:in `save'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> resource.rb:301:in `hookable__save_nan_before_advised'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> resource.rb:301:in `each'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> resource.rb:301:in `hookable__save_nan_before_advised'
> from /usr/lib/ruby/gems/1.8/gems/extlib-0.9.13/lib/extlib/
> hook.rb:299:in `save'
> from /usr/lib/ruby/gems/1.8/gems/extlib-0.9.13/lib/extlib/
> hook.rb:297:in `catch'
> from /usr/lib/ruby/gems/1.8/gems/extlib-0.9.13/lib/extlib/
> hook.rb:297:in `save'
> from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/
> resource.rb:538:in `update_attributes'
> from sample_datamapper.rb:75
>
>
> my example code is
>
> require 'rubygems'
> require 'dm-core'
>
> DataMapper.setup( :default, "sqlite3:///home/abs1/sample2/test1.db" )
>
> class Commit
> include DataMapper::Resource
> property :id, Integer, :serial => true
> property :identifier, String, :nullable => false
> property :message, String, :length => 255
> property :author, String, :length => 255
> property :committed_at, DateTime
> property :created_at, DateTime
> property :updated_at, DateTime
> has 1, :build, :class_name => "Build",
> :order => [:created_at.desc]
> end
>
> class Build
> include DataMapper::Resource
> property :id, Integer, :serial => true
> property :output, Text, :default => "", :lazy => false
> property :successful, Boolean, :default => false
> property :commit_id, Integer, :nullable => false
> property :created_at, DateTime
> property :updated_at, DateTime
> property :started_at, DateTime
> property :completed_at, DateTime
> has n, :buildsteps, :class_name => "BuildStep"
> has n, :steps, :through => :buildsteps, :mutable => true
> end
>
> class Step
> include DataMapper::Resource
> has n, :buildsteps, :class_name => "BuildStep"
> has n, :builds, :through => :buildsteps, :mutable => true
> property :id, Integer, :serial => true
> property :name, String
> property :dsp_name, String
> property :dsp_order, Integer
> property :created_at, DateTime
> property :updated_at, DateTime
> end
>
> class
> BuildStep
> include
> DataMapper::Resource
> belongs_to :build, :class_name => "Build", :child_key =>
> [:build_id]
> belongs_to :step, :class_name => "Step", :child_key =>
> [:step_id]
> property :id, Integer, :serial => true
> property :started_at, DateTime
> property :completed_at, DateTime
> property :output, Text
> property :successful, Boolean
> property :created_at, DateTime
> property :updated_at, DateTime
> end
>
> DataMapper.auto_migrate!
> build = Build.new(:commit_id => 2, :output => "rake aboted" )
> commit = Commit.create(:identifier => '0782', :author =>
> 'sankar', :message => "rake file added")
> commit.update_attributes(:build => build)
> build = commit.build
>
> Step.create(:name => 'rake unit')
> Step.create(:name => 'rake integration')
> Step.create(:name => 'rake features')
>
> Step.all.each { |steps|
> BuildStep.create(:step => steps, :build => build)
> }
>
> build.steps
>
> commit.update_attributes(:committed_at => Time.now)
>
> --
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