module ActiveAdmin module Filters module FormtasticAddons # # The below are Formtastic method overrides that jump inside of the Ransack # search object to get at the object being searched upon. # def humanized_method_name if klass.respond_to?(:human_attribute_name) klass.human_attribute_name(method) else method.to_s.public_send(builder.label_str_method) end end def reflection_for(method) klass.reflect_on_association(method) if klass.respond_to? :reflect_on_association end def column_for(method) klass.columns_hash[method.to_s] if klass.respond_to? :columns_hash end def column column_for method end # # The below are custom methods that Formtastic does not provide. # # The resource class, unwrapped from Ransack def klass @object.object.klass end def polymorphic_foreign_type?(method) klass.reflect_on_all_associations.select{ |r| r.macro == :belongs_to && r.options[:polymorphic] } .map(&:foreign_type).include? method.to_s end # # These help figure out whether the given method or association will be recognized by Ransack. # def searchable_has_many_through? if reflection && reflection.options[:through] reflection.through_reflection.klass.ransackable_attributes.include? reflection.foreign_key else false end end def seems_searchable? has_predicate? || ransacker? || scope? end # If the given method has a predicate (like _eq or _lteq), it's pretty # likely we're dealing with a valid search method. def has_predicate? !!Ransack::Predicate.detect_from_string(method.to_s) end # Ransack lets you define custom search methods, called ransackers. def ransacker? klass._ransackers.key? method.to_s end # Ransack supports exposing selected scopes on your model for advanced searches. def scope? context = Ransack::Context.for klass context.respond_to?(:ransackable_scope?) && context.ransackable_scope?(method.to_s, klass) end end end end