Module: SimpleGroup::Group

Defined in:
lib/simple_group/group.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/simple_group/group.rb', line 3

def self.included(base)
  base.class_eval do
    has_many :combinations, class_name: 'SimpleGroup::Combination', as: :group, dependent: :destroy, inverse_of: :group do
      def group_items
        includes(:group_item).map(&:group_item)
      end
    end
  end
end

Instance Method Details

#add(model) ⇒ Object

Raises:



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# File 'lib/simple_group/group.rb', line 22

def add(model)
  raise SimpleGroup::GroupNotAllowError unless model.class.groupable?
  SimpleGroup::Combination.new(group: self, group_item: model).save
end

#count ⇒ Object 



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# File 'lib/simple_group/group.rb', line 46

def count
  self.combinations.count
end

#exclude?(model) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/simple_group/group.rb', line 18

def exclude?(model)
  !include?(model)
end

#for_type(klass) ⇒ Object 



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# File 'lib/simple_group/group.rb', line 42

def for_type(klass)
  self.combinations.for_type(klass)
end

#include?(model) ⇒ Boolean

Returns:

  • (Boolean)

Raises:



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# File 'lib/simple_group/group.rb', line 13

def include?(model)
  raise SimpleGroup::GroupNotAllowError unless model.class.groupable?
  SimpleGroup::Combination.exists?(group: self, group_item: model)
end

#remove(model) ⇒ Object 



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# File 'lib/simple_group/group.rb', line 27

def remove(model)
  raise_error unless model.class.groupable?
  group = SimpleGroup::Combination.where(
      group_type: self.class.name,
      group_id: self,
      group_item_type: model.class.name,
      group_item_id: model
  ).first
  if group.present?
    group.destroy
  else
    false
  end
end