Module: Mcmire::ArAttrLazy::BaseExt::ClassMethods

Defined in:
lib/mcmire/ar_attr_lazy/base_ext.rb

Instance Method Summary collapse

Instance Method Details

#find_with_attr_lazy(*args) ⇒ Object 



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# File 'lib/mcmire/ar_attr_lazy/base_ext.rb', line 13

def find_with_attr_lazy(*args)
  # don't limit :select clause if there aren't any lazy attributes defined on this model
  # or we're inside a scope right now that has already defined :select
  if attr_lazy_columns.empty? or (scope = scope(:find) and scope[:select])
    find_without_attr_lazy(*args)
  else
    with_scope(:find => { :select => unlazy_column_list }) do
      find_without_attr_lazy(*args)
    end
  end
end

#read_lazy_attribute(record, attr) ⇒ Object 



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# File 'lib/mcmire/ar_attr_lazy/base_ext.rb', line 25

def read_lazy_attribute(record, attr)
  # we use with_exclusive_scope here to override any :includes that may have happened in a parent scope
  select = [primary_key, attr].map {|c| "#{quoted_table_name}.#{connection.quote_column_name(c)}" }.join(",")
  with_exclusive_scope(:find => { :select => select }) do
    find_without_attr_lazy(record[primary_key])[attr]
  end
end

#unlazy_column_list ⇒ Object 



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# File 'lib/mcmire/ar_attr_lazy/base_ext.rb', line 9

def unlazy_column_list
  unlazy_column_names.map {|c| "#{quoted_table_name}.#{connection.quote_column_name(c)}" }.join(",")
end

#unlazy_column_names ⇒ Object 



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# File 'lib/mcmire/ar_attr_lazy/base_ext.rb', line 5

def unlazy_column_names
  column_names - attr_lazy_columns
end