Fred,
I do have a "changed" method!
#
# Typically used by "set" accessors to indicate that an attribute
of this object has been changed.
#
def changed
@has_changed = true
end
Why would this cause a problem?
On 23 Dec, 16:37, "[email protected]"
<[email protected]> wrote:
> Fred,
>
> I'll look for "changed".
>
> I can re-create the error in the console - please see below. The error
> would suggest that attribute_names in attributes_with_quotes is set to
> true though as you can see the 'attributes.keys' for the instance
> being saved seems ok.
>
> *** CONSOLE OUTPUT - r, an existing Root object in the DB, raises an
> error when I try to save it back
> r = Property.find(1)
> => #<Root id: 1, type: "Root", name: "Base of Administrator",
> yaml_container: nil, parent_id: nil, owner_id: 1, custodian_id: 1,
> property_control_id: 1, include_parent_responses: false, inheritable:
> false, response_vehicle_id: nil, acquire_child_values: false,
> description: nil, rating: nil, link_base_id: nil, base_image_id: nil,
> event_when_id: nil, event_description_id: nil>>> r.save
>
> NoMethodError: undefined method `each' for true:TrueClass
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> base.rb:2808:in `attributes_with_quotes'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> base.rb:2706:in `update_without_lock'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> locking/optimistic.rb:70:in `update_without_dirty'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> dirty.rb:146:in `update_without_callbacks'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> callbacks.rb:253:in `update_without_timestamps'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> timestamp.rb:38:in `update'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> base.rb:2699:in `create_or_update_without_callbacks'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> callbacks.rb:222:in `create_or_update'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> base.rb:2383:in `save_without_validation'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> validations.rb:1009:in `save_without_dirty'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> dirty.rb:79:in `save_without_transactions'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> transactions.rb:179:in `send'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> transactions.rb:179:in `with_transaction_returning_status'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> connection_adapters/abstract/database_statements.rb:66:in
> `transaction'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> transactions.rb:129:in `transaction'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> transactions.rb:138:in `transaction'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> transactions.rb:178:in `with_transaction_returning_status'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> transactions.rb:146:in `save'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> transactions.rb:158:in `rollback_active_record_state!'
> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/
> transactions.rb:146:in `save'
> from (irb):24
> from :0>> r.attributes.keys
> => ["rating", "property_control_id", "name", "yaml_container",
> "event_description_id", "type", "response_vehicle_id", "id",
> "event_when_id", "custodian_id", "description", "base_image_id",
> "owner_id", "acquire_child_values", "link_base_id", "parent_id",
> "include_parent_responses", "inheritable"]
>
>
>
> On 23 Dec, 16:31, Frederick Cheung <[email protected]> wrote:
>
> > On 23 Dec 2008, at 15:44, [email protected] wrote:
>
> > > I'm not sure which model is causing the problem. I am now trapping
>
> > It would be the model being saved/created. A method called changed
> > would cause a problem for example.
>
> > Fred
>
> > > exceptions and the error first occurs when I execute root.save (see
> > > ***1***). 'root' is an instance of my Property model. I also get the
> > > same error when executing code *** 2 *** (which follows the execution
> > > of *** 1 ***) - member.save forces another (different) instance of
> > > Property to be saved to the properties table which again triggers the
> > > same error. FYI 'member.create_default_characteristics(user)' (in ***
> > > 2 ***) calls create_root() (*** 1 ***). The log file also suggests
> > > that both errors are raised on an INSERT into my properties table.
>
> > > *** 1 ***
>
> > > def create_root(administrator)
> > > begin
> > > root = create_root_collection(self.pingee_name,
> > > administrator,
> > > GlobalAccessibility.new,
> > > OwnerAccessibility.new)
> > > root.save
> > > rescue Exception => exe
> > > logger.info("*** Member.create_root #{exe} #{root.name.to_s}
> > > ***")
> > > end
> > > self.root = root
> > > end
>
> > > *** 2 ***
> > > def self.add_member_for_user(user)
> > > member = new(:user_id => user.id, :pingee_name =>
> > > user.pingee_name)
> > > # Create the member's default characteristics and save it all
> > > to the database in a single
> > > # transaction
> > > begin
> > > transaction do
> > > member.create_default_characteristics(user)
> > > member.save!
> > > end
> > > member
> > > rescue Exception => exe
> > > logger.info("*** Member.add_member_for_user #{exe} ***")
> > > end
> > > end
>
> > > On 23 Dec, 15:19, Frederick Cheung <[email protected]> wrote:
> > >> On 23 Dec 2008, at 14:04, [email protected] wrote:
>
> > >>> I have checked for method/association name clashes and can't see
> > >>> any.
> > >>> Any tips on how I might debug this further would be very much
> > >>> appreciated - I am completely stuck!
>
> > >> You could start by showing the code in your model. If you've got any
> > >> plugins you're using it's worth making sure they aren't the problem
>
> > >> Fred
>
> > >>> To recap, I am getting the error "undefined method `each' for
> > >>> true:TrueClass" when an Active Record method (in active_record/
> > >>> base.rb
> > >>> - see below) is being executed. So I assume 'attribute_names' is
> > >>> being
> > >>> set to true for some reason.
>
> > >>> # Returns a copy of the attributes hash where all the values
> > >>> have been safely quoted for use in
> > >>> # an SQL statement.
> > >>> def attributes_with_quotes(include_primary_key = true,
> > >>> include_readonly_attributes = true, attribute_names =
> > >>> @attributes.keys)
> > >>> quoted = {}
> > >>> connection = self.class.connection
> > >>> attribute_names.each do |name|
> > >>> if (column = column_for_attribute(name)) &&
> > >>> (include_primary_key || !column.primary)
> > >>> value = read_attribute(name)
>
> > >>> # We need explicit to_yaml because quote() does not
> > >>> properly convert Time/Date fields to YAML.
> > >>> if value && self.class.serialized_attributes.has_key?
> > >>> (name) && (value.acts_like?(:date) || value.acts_like?(:time))
> > >>> value = value.to_yaml
> > >>> end
>
> > >>> quoted[name] = connection.quote(value, column)
> > >>> end
> > >>> end
> > >>> include_readonly_attributes ? quoted :
> > >>> remove_readonly_attributes(quoted)
> > >>> end
>
> > >>> On 20 Dec, 14:26, Frederick Cheung <[email protected]>
> > >>> wrote:
> > >>>> On Dec 20, 1:52 pm,
> > >>>> "[email protected]"<[email protected]> wrote:
> > >>>>> To add, I am seeing the following when I retrieve an existing Root
> > >>>>> object in the Rails console and then try to save it again:
>
> > >>>> My guess would be that you have a method or an association with a
> > >>>> name
> > >>>> that has since been used internally by activerecord. If you can
> > >>>> show
> > >>>> more of your model someone might be able to spot the troublemaker.
>
> > >>>> Fred
>
> > >>>>> => #<Root id: 1, type: "Root", name: "Base of Administrator",
> > >>>>> yaml_container: nil, parent_id: nil, owner_id: 1, custodian_id: 1,
> > >>>>> property_control_id: 1, include_parent_responses: false,
> > >>>>> inheritable:
> > >>>>> false, response_vehicle_id: nil, acquire_child_values: false,
> > >>>>> description: nil, rating: nil, link_base_id: nil, base_image_id:
> > >>>>> nil,
> > >>>>> event_when_id: nil, event_description_id: nil>>> root.save
>
> > >>>>> NoMethodError: undefined method `each' for true:TrueClass
> > >>>>> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/
> > >>>>> active_record/
> > >>>>> base.rb:2808:in `attributes_with_quotes'
> > >>>>> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/
> > >>>>> active_record/
> > >>>>> base.rb:2706:in `update_without_lock'
> > >>>>> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/
> > >>>>> active_record/
> > >>>>> locking/optimistic.rb:70:in `update_without_dirty'
> > >>>>> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/
> > >>>>> active_record/
> > >>>>> dirty.rb:146:in `update_without_callbacks'
> > >>>>> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/
> > >>>>> active_record/
> > >>>>> callbacks.rb:253:in `update_without_timestamps'
> > >>>>> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/
> > >>>>> active_record/
> > >>>>> timestamp.rb:38:in `update'
> > >>>>> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/
> > >>>>> active_record/
> > >>>>> base.rb:2699:in `create_or_update_without_callbacks'
> > >>>>> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/
> > >>>>> active_record/
> > >>>>> callbacks.rb:222:in `create_or_update'
> > >>>>> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/
> > >>>>> active_record/
> > >>>>> base.rb:2383:in `save_without_validation'
>
> ...
>
> read more ยป
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