Slide 21
Slide 21 text
protected
def method_missing(method, *args, &block)
if Array.method_defined?(method)
to_a.send(method, *args, &block)
elsif @klass.scopes[method]
merge(@klass.send(method, *args, &block))
elsif @klass.respond_to?(method)
scoping { @klass.send(method, *args, &block) }
elsif arel.respond_to?(method)
arel.send(method, *args, &block)
elsif match = DynamicFinderMatch.match(method)
attributes = match.attribute_names
super unless @klass.send(:all_attributes_exists?, attributes)
if match.finder?
find_by_attributes(match, attributes, *args)
elsif match.instantiator?
find_or_instantiator_by_attributes(match, attributes, *args, &block)
end
else
super
end
end
private
def references_eager_loaded_tables?
# always convert table names to downcase as in Oracle quoted table names are in uppercase
joined_tables = (tables_in_string(arel.joins(arel)) + [table.name, table.table_alias]).compact.map{ |t|
t.downcase }.uniq
(tables_in_string(to_sql) - joined_tables).any?
end