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

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#lazy_attributes_module ⇒ Object

Module to store the lazy attribute getter methods, so they can be overridden and call super to get the lazy attribute behavior



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# File 'lib/sequel/plugins/lazy_attributes.rb', line 41

def lazy_attributes_module
  @lazy_attributes_module
end

Instance Method Details

#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 46

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