Accessing Session Object from a model


i realise that this goes against the basic idea of the MVC architecture,
but i’ve found myself in a situation where i need to get information
about the current user in a model & i’m not sure how to do it.

Basically, we have a product where each customer has their own profile
with data stored in a separate database. There are some tables in a
common ‘system-wide’ database such as the user, role & permission
tables, but a lot of other stuff has to be divided up into separate DBs
per customer. I realise this isn’t the best way to organise the data but
it’s a requirement of the project so i’m stuck with it.

I need to be able to tell my model what DB to connect to based on what
profile the logged in user has. Something similar to:

class Report < ActiveRecord::Base
:adapter => MyConfig.config(:db_adaptor),
:username => MyConfig.config(:db_user_name),
:password => MyConfig.config(:db_password),
:database => @session[:user] + “_dbname”
set_table_name “reports”

All the DBs have the same login information so the only thing I need to
change is the :database attribute, but I can’t figure out any way to
pass this information into the model before the connection takes place.
Any help or ideas would be greatly appreciated!

Thanks in advance