Rails tips

rails_tips.rb

## CONSOLE
# Routes for a controller
rake routes CONTROLLER=products


## CONTROLLER
# Redirect to referrer
redirect_to :back # raise RedirectBackError if no referer

# Before filter and after filter in a same method
around_filter

# Usefull plugin for params verification in action
Link: https://github.com/sikachu/verification
ex: verify :params => "admin_privileges", :only => :update_post, :redirect_to => { :action => "settings" }

## ACTIVE RECORD
# Update updated_at timestamp entry
product.touch
=> Set updated_at to now

# Get SQL query
User.first.to_sql
=> SELECT * FROM 'users' WHERE 'users'.'id' = 1

# Get tables list
conn.tables
=> ["schema_info", ...]

# Create table temporary wich only exist for the migrations.
:temporary => true