gistfile1.ru

# <product>
# 	<orders>
# 		<order>
# 			<amount>1</amount>
# 		</order>
# 		<order>
# 			<amount>1</amount>
# 		</order>
# 	</orders>
# </product>
# 
# becomes
# 
# <product>
# 	<orders-attributes>
# 		<amount>1</amount>
# 	</orders-attributes>
# 	<orders-attributes>
# 		<amount>1</amount>
# 	</orders-attributes>
# </product>



def fix_from_xml_nested_assocations klass, p
	# Get all the associations for the model
	klass.reflect_on_all_associations(:has_many).each do |association|
	  a = association.name.to_s
	  # If the parameters include this association key
	  if p.has_key? a
	    # The association should contain the singular form of the key
	    unless p[a][a.singularize].nil?
	      # If there are multiple records, this will contain an array
	      if p[a][a.singularize].is_a? Array
	        # Move the data into the relevant key
	        p[a + "_attributes"] = p[a][a.singularize]
	      # If there is only one record, this will contain a hash of that record
	      elsif p[a][a.singularize].is_a? Hash
	        # We need to put the hash into an array to make it work properly
	        p[a + "_attributes"] = [p[a][a.singularize]]
	      end
	      # Delete the original key
	      p.delete a
	    end
	  end
	end
	# Return the fixed params
	p
end