virtual_community.rb
2.18 KB
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class VirtualCommunity < ActiveRecord::Base
# returns the available features for a VirtualCommunity, in the form of a
# hash, with pairs in the form <tt>'feature_name' => 'Feature name'</tt>.
def self.available_features
{
'some_feature' => _('Some feature'),
'other_feature' => _('Other feature'),
}
end
# #################################################
# Relationships and applied behaviour
# #################################################
# One VirtualCommunity can be reached by many domains
has_many :domains, :as => :owner
# a VirtualCommunity can be configured
acts_as_configurable
# #################################################
# Attributes
# #################################################
# Enables a feature
def enable(feature)
self.settings["#{feature}_enabled"] = true
end
# Disables a feature
def disable(feature)
self.settings["#{feature}_enabled"] = false
end
# Tells if a feature is enabled
def enabled?(feature)
self.settings["#{feature}_enabled"] == true
end
# enables the features identified by <tt>features</tt>, which is expected to
# be an Enumarable object containing the identifiers of the desired features.
# Passing <tt>nil</tt> is the same as passing an empty Array.
def enabled_features=(features)
features ||= []
self.class.available_features.keys.each do |feature|
if features.include? feature
self.enable(feature)
else
self.disable(feature)
end
end
end
# #################################################
# Validations
# #################################################
# <tt>name</tt> is mandatory
validates_presence_of :name
# only one virtual community can be the default one
validates_uniqueness_of :is_default, :if => (lambda do |virtual_community| virtual_community.is_default? end), :message => _('Only one Virtual Community can be the default one')
# #################################################
# Business logic in general
# #################################################
# the default VirtualCommunity.
def self.default
self.find(:first, :conditions => [ 'is_default = ?', true ] )
end
end