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comp.lang.ruby

Execute Ruby code stored in database

Petr Janda

1/6/2008 1:02:00 PM

Hi,
I've got a hypothetical question, and im hoping someone can answer it.
Let's say ive got a MySql server and I store some Ruby code inside a
column/table/database. Is there anyway I can load this data from a Ruby
program and execute the code as if it was a part of the program?

Cheers,
Petr
--
Posted via http://www.ruby-....
2 Answers

hemant

1/6/2008 1:14:00 PM

0

On Jan 6, 2008 6:31 PM, Petr Janda <petr@punchyouremployer.com> wrote:
> Hi,
> I've got a hypothetical question, and im hoping someone can answer it.
> Let's say ive got a MySql server and I store some Ruby code inside a
> column/table/database. Is there anyway I can load this data from a Ruby
> program and execute the code as if it was a part of the program?
>

One obvious way is to use 'eval'


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John Joyce

1/8/2008 12:54:00 PM

0


On Jan 6, 2008, at 7:01 AM, Petr Janda wrote:

> Hi,
> I've got a hypothetical question, and im hoping someone can answer it.
> Let's say ive got a MySql server and I store some Ruby code inside a
> column/table/database. Is there anyway I can load this data from a
> Ruby
> program and execute the code as if it was a part of the program?
>
> Cheers,
> Petr
> --
> Posted via http://www.ruby-....
>
There could be a few ways to do this.
One method would be actually loading that text to a string, and the
string having a file name like name. Then use try to "load
that_string.rb"
No idea if that would work.

The method that would work for sure, get data from DB, save it as
a .rb text file, "load" the file. Of course, that's pointless if you
have to do all of that.

If you just want snippets of code, use eval on the snippets loaded
from DB.

Generally speaking, the file system of the OS is going to be faster
than any DB.