On Jan 27, 2011, at 1:16 PM, bob wrote: > Hi, I'm trying to figure out why I can't dump and load a ActiveRecord > object with YAML.
Not sure about your error, but you could do... tom = Dummy.new(:name => 'Tom') yml = toml.attributes.to_yaml new_tom = Dummy.new(YAML.load(yml)) or something similar... > Please see the gist below for how to replicate, and the exact error > I'm getting. > > https://gist.github.com/84f44da695b218ae9474 > > Basically I create a new project, new database, and new model. > > Create an instance of the model, call to_yaml on it, store that, and > then try and load an object from that. > > This general idea, of reconstituting a model from it's YAML > representation works in some of my projects, but not in any new > ones. > > I have no idea why this would be the case. > > Changing the type of the yaml dump from > !ruby/object:Dummy > to > !ruby/ActiveRecord:Dummy > helps a little bit, but still returns something weird. > > ruby-1.9.2-p0 > tom > => "--- !ruby/object:Dummy \nattributes: \n id: 1\n name: Tim\n > created_at: 2011-01-27 21:12:33.327345\n updated_at: 2011-01-27 > 21:12:33.327345\nattributes_cache: {}\n\nchanged_attributes: {}\n > \ndestroyed: false\nmarked_for_destruction: false\npersisted: true > \npreviously_changed: {}\n\nreadonly: false\n" > ruby-1.9.2-p0 > bill = tom.gsub("object", 'ActiveRecord') > => "--- !ruby/ActiveRecord:Dummy \nattributes: \n id: 1\n name: Tim > \n created_at: 2011-01-27 21:12:33.327345\n updated_at: 2011-01-27 > 21:12:33.327345\nattributes_cache: {}\n\nchanged_attributes: {}\n > \ndestroyed: false\nmarked_for_destruction: false\npersisted: true > \npreviously_changed: {}\n\nreadonly: false\n" > ruby-1.9.2-p0 > YAML.load(bill) > => #<Syck::DomainType:0x00000100c634b8 @domain="ruby.yaml.org,2002", > @type_id="ActiveRecord:Dummy", @value={"attributes"=>{"id"=>1, > "name"=>"Tim", "created_at"=>"2011-01-27 21:12:33.327345", > "updated_at"=>"2011-01-27 21:12:33.327345"}, "attributes_cache"=>{}, > "changed_attributes"=>{}, "destroyed"=>false, > "marked_for_destruction"=>false, "persisted"=>true, > "previously_changed"=>{}, "readonly"=>false}> > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To post to this group, send email to rubyonrails-talk@googlegroups.com. > To unsubscribe from this group, send email to > rubyonrails-talk+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/rubyonrails-talk?hl=en. > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
