Rails isolated engine model associations -


i have engine namespace 'shop'. great except if don't add class_name: 'shop::myassociatedmodel' in association declarations errors. example product has many product_images if product model looks ok:

module shop   class product < activerecord::base     has_many :product_images, :class_name => 'shop::productimage'   end end

in case don't use class_name error:

uninitialized constant productimage

on line:

@products.in_groups_of(3) |products|   ...

this engine.rb file:

module shop   class engine < rails::engine     isolate_namespace shop     ...   end end

the engine created rails generator on rails v 3.1.something , upgraded rails 3.2.5

based on rails guides - engines section in link, if don't add namespace, class in parent application's models, not want.


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