Class: CanCan::ModelAdapters::DataMapperAdapter

Inherits:
AbstractAdapter show all
Defined in:
lib/cancan/model_adapters/data_mapper_adapter.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from AbstractAdapter

adapter_class, inherited, #initialize, matches_condition?, override_condition_matching?

Constructor Details

This class inherits a constructor from CanCan::ModelAdapters::AbstractAdapter

Class Method Details

.for_class?(model_class) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cancan/model_adapters/data_mapper_adapter.rb', line 4

def self.for_class?(model_class)
  model_class <= DataMapper::Resource
end

.matches_conditions_hash?(subject, conditions) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cancan/model_adapters/data_mapper_adapter.rb', line 12

def self.matches_conditions_hash?(subject, conditions)
  subject.class.all(:conditions => conditions).include?(subject) # TODO don't use a database query here for performance and other instances
end

.override_conditions_hash_matching?(subject, conditions) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cancan/model_adapters/data_mapper_adapter.rb', line 8

def self.override_conditions_hash_matching?(subject, conditions)
  conditions.any? { |k,v| !k.kind_of?(Symbol) }
end

Instance Method Details

#conditions ⇒ Object 



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# File 'lib/cancan/model_adapters/data_mapper_adapter.rb', line 24

def conditions
  @rules.map(&:conditions)
end

#database_records ⇒ Object 



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# File 'lib/cancan/model_adapters/data_mapper_adapter.rb', line 16

def database_records
  scope = @model_class.all(:conditions => ["0=1"])
  conditions.each do |condition|
    scope += @model_class.all(:conditions => condition)
  end
  scope
end