Module: Sequel::Plugins::LazyAttributes::ClassMethods

Defined in:
lib/sequel/plugins/lazy_attributes.rb

Instance Method Summary collapse

Instance Method Details

#freeze ⇒ Object

Freeze lazy attributes module when freezing model class.



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# File 'lib/sequel/plugins/lazy_attributes.rb', line 42

def freeze
  @lazy_attributes_module.freeze if @lazy_attributes_module

  super
end

#lazy_attributes(*attrs) ⇒ Object

Remove the given attributes from the list of columns selected by default. For each attribute given, create an accessor method that allows a lazy lookup of the attribute. Each attribute should be given as a symbol.



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# File 'lib/sequel/plugins/lazy_attributes.rb', line 51

def lazy_attributes(*attrs)
  unless select = dataset.opts[:select]
    select = dataset.columns.map{|c| Sequel.qualify(dataset.first_source, c)}
  end
  db_schema = @db_schema
  set_dataset(dataset.select(*select.reject{|c| attrs.include?(dataset.send(:_hash_key_symbol, c))}))
  @db_schema = db_schema
  attrs.each{|a| define_lazy_attribute_getter(a)}
end