```ruby
# If set, email_from is the address the site sends emails as.  If left alone, emails
# are sent from CONFIG["admin_contact"].
CONFIG['email_from'] ||= CONFIG['admin_contact']

# Set default locale.
CONFIG['default_locale'] ||= 'en'

# Set default url_base if not set in local config.
CONFIG['url_base'] ||= 'http://' + CONFIG['server_host']

# Set secure to false by default due to ssl requirement
CONFIG['secure'] = 'false'
```

Correct way to define default.
user
```ruby
# If set, email_from is the address the site sends emails as.  If left alone, emails
# are sent from CONFIG["admin_contact"].
CONFIG['email_from'] ||= CONFIG['admin_contact']

# Set default locale.
CONFIG['default_locale'] ||= 'en'

# Set default url_base if not set in local config.
CONFIG['url_base'] ||= 'http://' + CONFIG['server_host']

# Set secure to false by default due to ssl requirement
CONFIG['secure'] ||= 'false'
```
assistant