Class: CanCan::ModelAdapters::MongoidAdapter

Inherits:
AbstractAdapter
  • Object
show all
Defined in:
lib/cancancan/model_adapters/mongoid_adapter.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.for_class?(model_class) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cancancan/model_adapters/mongoid_adapter.rb', line 4

def self.for_class?(model_class)
  model_class <= Mongoid::Document
end

.matches_conditions_hash?(subject, conditions) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cancancan/model_adapters/mongoid_adapter.rb', line 19

def self.matches_conditions_hash?(subject, conditions)
  # To avoid hitting the db, retrieve the raw Mongo selector from
  # the Mongoid Criteria and use Mongoid::Matchers#matches?
  q = subject.class.where(conditions).selector
  if subject.respond_to?(:_matches?)
    subject._matches?(q)
  else
    subject.matches?(q)
  end
end

.override_conditions_hash_matching?(subject, conditions) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cancancan/model_adapters/mongoid_adapter.rb', line 8

def self.override_conditions_hash_matching?(subject, conditions)
  conditions.any? do |k, _v|
    key_is_not_symbol = -> { !k.is_a?(Symbol) }
    subject_value_is_array = lambda do
      subject.respond_to?(k) && subject.send(k).is_a?(Array)
    end

    key_is_not_symbol.call || subject_value_is_array.call
  end
end

Instance Method Details

#database_records ⇒ Object 



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# File 'lib/cancancan/model_adapters/mongoid_adapter.rb', line 30

def database_records
  if @rules.empty?
    @model_class.where(_id: { '$exists' => false, '$type' => 7 }) # return no records in Mongoid
  elsif @rules.size == 1 && @rules[0].conditions.is_a?(Mongoid::Criteria)
    @rules[0].conditions
  else
    # we only need to process can rules if
    # there are no rules with empty conditions
    database_records_from_multiple_rules
  end
end

#database_records_from_multiple_rules ⇒ Object 



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# File 'lib/cancancan/model_adapters/mongoid_adapter.rb', line 42

def database_records_from_multiple_rules
  rules = @rules.reject { |rule| rule.conditions.empty? && rule.base_behavior }
  process_can_rules = @rules.count == rules.count

  rules.inject(@model_class.all) do |records, rule|
    if process_can_rules && rule.base_behavior
      records.or simplify_relations(@model_class, rule.conditions)
    elsif !rule.base_behavior
      records.excludes simplify_relations(@model_class, rule.conditions)
    else
      records
    end
  end
end