Rails - Mar 2007 - Where's the list of valid attributes / methods for column objects?

I''m trying to figure out what the valid attributes are on a column
object.
The Rails scaffolding generates a list view that uses column.column_name for 
example. ActiveRecord::Base#columns says it returns "an array of column 
objects for the table associated with this class".  But I can''t
find a list
of the attributes of / methods on a column object anywhere.

Any help would be very much appreciated.

Thanks,
Bill 



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Hello,

On 2 Mar 2007, at 05:07, Bill Walton wrote:
> I''m trying to figure out what the valid attributes are on a column
> object.
> The Rails scaffolding generates a list view that uses  
> column.column_name for
> example. ActiveRecord::Base#columns says it returns "an array of  
> column
> objects for the table associated with this class".  But I
can''t
> find a list
> of the attributes of / methods on a column object anywhere.
Try using script/console:

Let''s say that you have a User model.

 >> User.columns.first.methods
=> ["to_a", "respond_to?", "returning",
"daemonize", "type", "limit",
"protected_methods", "human_name",
"silence_stream", "eql?",
"number?", "instance_variable_set", "precision",
"is_a?", "taguri",
"hash", "to_s", "send", "dclone",
"remove_subclasses_of", "ri",
"pretty_print_cycle", "primary", "default",
"with_options",
"taguri=", "silence_warnings",
"pretty_print_inspect", "class",
"tainted?", "private_methods", "primary=",
"__send__", "to_yaml",
"to_yaml_properties", "untaint", "scale",  
"extend_with_included_modules_from", "id",
"instance_eval",
"inspect", "require_library_or_gem",
"pretty_print", "klass",
"type_cast_code", "clone", "text?",
"public_methods", "b64encode",
"extended_by", "extend", "require_gem",
"freeze", "suppress",
"display", "encode64", "instance_values",
"po", "type_cast", "`",
"__id__", "pretty_print_instance_variables",
"methods", "==",
"method", "sql_type", "decode64", "gem",
"===", "to_json",
"subclasses_of", "dup", "nil?",
"enable_warnings",
"instance_variables", "copy_instance_variables_from",
"instance_of?",
"load", "name", "poc", "to_param",
"instance_exec", "=~",
"object_id", "singleton_methods", "decode_b",
"null", "unloadable",
"taint", "equal?", "silence_stderr",
"blank?",
"instance_variable_get", "frozen?", "kind_of?",
"require",
"to_yaml_style"]

Regards,
Andy Stewart

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Also see:

http://api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/Column.html


~ j.


On 3/2/07, Andrew Stewart
<boss-rAnrN1QAkGGttCpgsWEBFlaTQe2KTcn/@public.gmane.org>
wrote:
>
> Hello,
>
> On 2 Mar 2007, at 05:07, Bill Walton wrote:
> > I''m trying to figure out what the valid attributes are on a
column
> > object.
> > The Rails scaffolding generates a list view that uses
> > column.column_name for
> > example. ActiveRecord::Base#columns says it returns "an array of
> > column
> > objects for the table associated with this class".  But I
can''t
> > find a list
> > of the attributes of / methods on a column object anywhere.
>
> Try using script/console:
>
> Let''s say that you have a User model.
>
>  >> User.columns.first.methods
> => ["to_a", "respond_to?", "returning",
"daemonize", "type", "limit",
> "protected_methods", "human_name",
"silence_stream", "eql?",
> "number?", "instance_variable_set",
"precision", "is_a?", "taguri",
> "hash", "to_s", "send", "dclone",
"remove_subclasses_of", "ri",
> "pretty_print_cycle", "primary", "default",
"with_options",
> "taguri=", "silence_warnings",
"pretty_print_inspect", "class",
> "tainted?", "private_methods", "primary=",
"__send__", "to_yaml",
> "to_yaml_properties", "untaint", "scale",
> "extend_with_included_modules_from", "id",
"instance_eval",
> "inspect", "require_library_or_gem",
"pretty_print", "klass",
> "type_cast_code", "clone", "text?",
"public_methods", "b64encode",
> "extended_by", "extend", "require_gem",
"freeze", "suppress",
> "display", "encode64", "instance_values",
"po", "type_cast", "`",
> "__id__", "pretty_print_instance_variables",
"methods", "==",
> "method", "sql_type", "decode64",
"gem", "===", "to_json",
> "subclasses_of", "dup", "nil?",
"enable_warnings",
> "instance_variables", "copy_instance_variables_from",
"instance_of?",
> "load", "name", "poc", "to_param",
"instance_exec", "=~",
> "object_id", "singleton_methods", "decode_b",
"null", "unloadable",
> "taint", "equal?", "silence_stderr",
"blank?",
> "instance_variable_get", "frozen?",
"kind_of?", "require",
> "to_yaml_style"]
>
> Regards,
> Andy Stewart
>
> >
>
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