Sha256: 3930f52903d107222f93a8937e30917b7c782c8a715221aca074d164d507b1a0
Contents?: true
Size: 1.93 KB
Versions: 38
Compression:
Stored size: 1.93 KB
Contents
module Dataset
module Record # :nodoc:
# A mechanism to cache information about an ActiveRecord class to speed
# things up a bit for insertions, finds, and method generation.
class Meta # :nodoc:
attr_reader :class_name, :columns, :record_class, :table_name
# Provides information necessary to insert STI classes correctly for
# later reading.
delegate :name, :inheritance_column, :sti_name, :to => :record_class
def initialize(record_class)
@record_class = record_class
@class_name = record_class.name
@table_name = record_class.table_name
@columns = record_class.columns
end
def id_cache_key
@id_cache_key ||= table_name
end
def inheriting_record?
!record_class.descends_from_active_record?
end
def timestamp_columns
@timestamp_columns ||= begin
timestamps = %w(created_at created_on updated_at updated_on)
columns.select do |column|
timestamps.include?(column.name)
end
end
end
def id_finder_names
@id_finder_names ||= begin
names = descendants.collect {|c| finder_name c}
names.uniq.collect {|n| "#{n}_id".to_sym}
end
end
def model_finder_names
@record_finder_names ||= descendants.collect {|c| finder_name(c).pluralize.to_sym}.uniq
end
def to_s
"#<RecordMeta: #{table_name}>"
end
def descendants
if record_class.respond_to?(:self_and_descendents_from_active_record)
record_class.self_and_descendents_from_active_record
else
record_class.self_and_descendants_from_active_record
end
end
def finder_name(klass)
klass.name.underscore.gsub('/', '_').sub(/^(\w)_/, '\1').gsub(/_(\w)_/, '_\1')
end
end
end
end
Version data entries
38 entries across 38 versions & 5 rubygems