method

has_cached_counter?

v4.2.7 - Show latest stable - 0 notes - Class: ActiveRecord::Associations::HasManyAssociation

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What's this?

has_cached_counter?(reflection = reflection()) private

Returns whether a counter cache should be used for this association.

The counter_cache option must be given on either the owner or inverse association, and the column must be present on the owner.

Show source

# File activerecord/lib/active_record/associations/has_many_association.rb, line 88
        def has_cached_counter?(reflection = reflection())
          if reflection.options[:counter_cache] || (inverse = inverse_which_updates_counter_cache(reflection)) && inverse.options[:counter_cache]
            owner.attribute_present?(cached_counter_attribute_name(reflection))
          end
        end

has_cached_counter?

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