generate tables or database schema from model in ruby on rails
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I am having an existing rails project in which some important files and directories has been missed.

project rails version (2.3.8) i found it in environment.rb 

currently what i am having is 


    app
       controllers (fully coded)
       helpers  (fully coded)
       models (fully coded)
       reports (fully coded)
       views  (fully coded)
   
    config ---> default configurations (fully coded)
    lib ---> contains nothing
    public --> contains images and scripts (fully coded)
    script ---> contains server,runner,plugin,dbconsole....


app directory fully contains working state of codes, app/model contains more than 100 .rb files , so i assume it will be more than 100 tables


the mainly missing things are db directory, .gem file, rake file, doc, test, vendor 

**Note:**
  i don't  have the table schema and database for that project

I am newbie to rails and i am from java background , in java by using hibernate there is an pojo(model in rails) to database option available, i am looking  for similar kind of stuffs for rails , and my main aim to run that project , so guys please help me.