Variable Method Name

Hello List!

I come to you after a long while of troubleshooting and researching to
no avail. My wish is to reference a class variable whose name is
stored as a string in another variable. I will try to set up an
example:

variable_name = ‘text’
print @#{variable_name}

I think that is how it would work, and i think the syntax is nearly
correct, but… its not.

Any help? Thanks alot guys!

–nathan

Any help? Thanks alot guys!

Not quite the same, but let’s say you have an AR model named Foo that
has
an attribute named bar, then:

myfoo = Foo.find(:first)
myfoo.send(‘bar’) # same as myfoo.bar

Maybe that will get you closer…

On 1/12/07, BlackNute [email protected] wrote:

variable_name = ‘text’
print @#{variable_name}

instance_variable_get("@#{variable_name")

http://ruby-doc.org/core/


Chris W.
http://errtheblog.com

On 1/17/07, Chris W. [email protected] wrote:

On 1/12/07, BlackNute [email protected] wrote:

variable_name = ‘text’
print @#{variable_name}

instance_variable_get("@#{variable_name")

Whoops, should be

instance_variable_get("@#{variable_name}")

of course.

BlackNute wrote:

Hello List!

I come to you after a long while of troubleshooting and researching to
no avail. My wish is to reference a class variable whose name is
stored as a string in another variable. I will try to set up an
example:

variable_name = ‘text’
print @#{variable_name}

I had asked questions like this.
http://www.ruby-forum.com/topic/93236#187853
http://www.ruby-forum.com/topic/93682#189535

variable_name = ‘text’
print @#{variable_name}

eval(“print #{variable_name}”)


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