Loading 3000 models to Ruby on Rails. Performances???

rubyonrails-talk
1

Hi,

I just wandering. If I autoload 3000 Ruby on Rails classes, will it need more computer memory? is more rails classes loaded, more memory needed? will it cause performances problems?

Thanks, John

2

Hi John,

More classes and instances will use more memory. Many websites uses Rails with these 3000+ classes in production, so that's not really a problem.

What exactly is your question? You can disable parts of the Rails framework in your environment.rb, but that won't make a big difference.

3

pl wrote:

Hi John,

More classes and instances will use more memory. Many websites uses Rails with these 3000+ classes in production, so that's not really a problem.

What exactly is your question? You can disable parts of the Rails framework in your environment.rb, but that won't make a big difference.

Hi Pl,

Great to know many website use more than 3000+ classes.

Basically, 1. I will have huge numbers of tables and each one of them have totally different columns. This because I want user to be able to upload theirs own data/tables. So, in this case, it can be even 20000+ classes. 2. For each tables, I will have model class that will access that table.

3. By having these no 1 and 2 requirement, I will need to load "model classes" dynamically whenever a user import their own table without restarting rails. So that's why I am looking into autoload feature. But seems like autoload only loading it from file. It will not load based on "string that contain model class"

4

You may really want to look at a NoSQL option, like MongoDB.

5

E. Litwin wrote:

You may really want to look at a NoSQL option, like MongoDB.

Yes, I indeed using NoSQL. Even with NoSQL, you still need Model Class to save and retrieve data. :).

6

John John wrote:

E. Litwin wrote:

You may really want to look at a NoSQL option, like MongoDB.

Yes, I indeed using NoSQL. Even with NoSQL, you still need Model Class to save and retrieve data. :).

oh yeah, I think I found the solution of using Object::const_set

7

The next question is. ---------- is it possible to convert this ----- Object::const_set(name.intern, Class::new do def write    puts "TEST" end end )

--------- convert above to ----------------- string_test = ' def write                    puts "TEST"                end' Object::const_set(name.intern, Class::new do string_test end )

-------- is that possible?

8

no need to answer find the answer using eval