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method

build_from_hash

Importance_0
v3.0.0 - Show latest stable - 0 notes - Class: ActiveRecord::PredicateBuilder
build_from_hash(attributes, default_table) public

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# File activerecord/lib/active_record/relation/predicate_builder.rb, line 8
    def build_from_hash(attributes, default_table)
      predicates = attributes.map do |column, value|
        table = default_table

        if value.is_a?(Hash)
          table = Arel::Table.new(column, :engine => @engine)
          build_from_hash(value, table)
        else
          column = column.to_s

          if column.include?('.')
            table_name, column = column.split('.', 2)
            table = Arel::Table.new(table_name, :engine => @engine)
          end

          attribute = table[column] || Arel::Attribute.new(table, column)

          case value
          when Array, ActiveRecord::Associations::AssociationCollection, ActiveRecord::Relation
            values = value.to_a
            attribute.in(values)
          when Range, Arel::Relation
            attribute.in(value)
          else
            attribute.eq(value)
          end
        end
      end

      predicates.flatten
    end
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