method

expand_hash_conditions_for_aggregates

v3.0.0 - Show latest stable - Class: ActiveRecord::Base

expand_hash_conditions_for_aggregates(attrs)

protected

Accepts a hash of SQL conditions and replaces those attributes that correspond to a composed_of relationship with their expanded aggregate attribute values. Given:

    class Person < ActiveRecord::Base
      composed_of :address, :class_name => "Address",
        :mapping => [%w(address_street street), %w(address_city city)]
    end

Then:

    { :address => Address.new("813 abc st.", "chicago") }
      # => { :address_street => "813 abc st.", :address_city => "chicago" }

# File activerecord/lib/active_record/base.rb, line 1262
        def expand_hash_conditions_for_aggregates(attrs)
          expanded_attrs = {}
          attrs.each do |attr, value|
            unless (aggregation = reflect_on_aggregation(attr.to_sym)).nil?
              mapping = aggregate_mapping(aggregation)
              mapping.each do |field_attr, aggregate_attr|
                if mapping.size == 1 && !value.respond_to?(aggregate_attr)
                  expanded_attrs[field_attr] = value
                else
                  expanded_attrs[field_attr] = value.send(aggregate_attr)
                end
              end
            else
              expanded_attrs[attr] = value
            end
          end
          expanded_attrs
        end

expand_hash_conditions_for_aggregates

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