method

expand_hash_conditions_for_aggregates

v5.2.3 - Show latest stable - 0 notes - Class: ClassMethods

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What's this?

expand_hash_conditions_for_aggregates(attrs) private

Accepts a hash of SQL conditions and replaces those attributes that correspond to a {#composed_of}[rdoc-ref:Aggregations::ClassMethods#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" }

Show source

# File activerecord/lib/active_record/sanitization.rb, line 152
        def expand_hash_conditions_for_aggregates(attrs) # :doc:
          expanded_attrs = {}
          attrs.each do |attr, value|
            if aggregation = reflect_on_aggregation(attr.to_sym)
              mapping = aggregation.mapping
              mapping.each do |field_attr, aggregate_attr|
                expanded_attrs[field_attr] = if value.is_a?(Array)
                  value.map { |it| it.send(aggregate_attr) }
                elsif mapping.size == 1 && !value.respond_to?(aggregate_attr)
                  value
                else
                  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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