Class: CanTango::Ability::Cache::Key

Inherits:
Object
  • Object
show all
Defined in:
lib/cantango/ability/cache/key.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(user, subject = nil, method_names = nil) ⇒ Key

Returns a new instance of Key.



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# File 'lib/cantango/ability/cache/key.rb', line 7

def initialize user, subject = nil, method_names = nil
  @user = user
  @subject = subject || user
  @method_names = method_names if method_names
end

Instance Attribute Details

#subject ⇒ Object (readonly)

Returns the value of attribute subject.



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# File 'lib/cantango/ability/cache/key.rb', line 5

def subject
  @subject
end

#user ⇒ Object (readonly)

Returns the value of attribute user.



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# File 'lib/cantango/ability/cache/key.rb', line 5

def user
  @user
end

Class Method Details

.create_for(ability) ⇒ Object 



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# File 'lib/cantango/ability/cache/key.rb', line 17

def self.create_for ability
  self.new ability.user, ability.subject
end

Instance Method Details

#method_names ⇒ Object 



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# File 'lib/cantango/ability/cache/key.rb', line 13

def method_names
  @method_names ||= [:roles_list, :role_groups_list]
end

#same?(session) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cantango/ability/cache/key.rb', line 26

def same? session
  raise "No session available" if !session
  session[:cache_key] && (value == session[:cache_key].value)
end

#to_s ⇒ Object 



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# File 'lib/cantango/ability/cache/key.rb', line 31

def to_s
  "key hash: #{value}"
end

#value ⇒ Object 



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# File 'lib/cantango/ability/cache/key.rb', line 21

def value
  raise "No key could be generated for User:#{user.inspect} and Subject:#{subject} - key field: #{user_key_field}" if hash_values.empty?
  @value ||= hash_values.hash
end