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Versions: 12
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Contents
module CanTango
class Ability
class Cache
class Key
attr_reader :user, :subject
def initialize user, subject = nil
@user = user
@subject = subject || user
end
def self.create_for ability
self.new ability.user, ability.subject
end
def value
raise "No key could be generated for #{user} and #{subject}" if hash_values.empty?
@value ||= hash_values.hash
end
def same? session
raise "No session available" if !session
session[:cache_key] && (value == session[:cache_key].value)
end
protected
def hash_values
@hash_values ||= [user_key, subject_roles_hash].compact
end
def user_key
# raise "#{user.class} must have a method ##{user_key_field}. You can configure this with CanTango.config#user.unique_key_field" if !user.respond_to?(user_key_field)
user.send(user_key_field) if user.respond_to? user_key_field
end
def user_key_field
CanTango.config.user.unique_key_field || :email
end
def subject_roles_hash
role_hash_values.empty? ? nil : role_hash_values.hash
end
def role_hash_values
@role_hash_values ||= [:roles_list, :role_groups_list].inject([]) do |result, meth|
result << subject.send(meth) if subject.respond_to? meth
result
end
end
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems