Thanks Fred.
I got the following error.
NoMethodError in ProductsController#search
undefined method `stringify_keys!' for #<Amazon::Element:0x10373c6a8>
/Library/User/Gems/1.8/gems/activerecord-2.3.3/lib/active_record/
base.rb:2731:in `attributes='
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.3/lib/active_record/
base.rb:2434:in `initialize'
/Users/User/Documents/Aptana Studio Workspace/Flatworld/app/models/
product.rb:5:in `initialize'
/Users/User/Documents/Aptana Studio Workspace/Flatworld/app/models/
products.rb:31:in `new'
.... [more]
and actual code for the model class is:
----------------------------------------------------------------
class Product < ActiveRecord::Base
has_many :inventories
def initialize(item)
super
@amazon_asin = item.get('asin')
@manufacturer = item.get('itemattributes/manufacturer')
@name = item.get('itemattributes/title')
@releasedate = item.get('itemattributes/releasedate')
@amazon_url = item.get('detailpageurl')
@amazon_image = item.get_hash('smallimage')
end
----------------------------------------------------------------
item is the result from Amazon API search result. I am trying to
instantiate Product class with the result data set.
Is this right approach to instantiate model class by overriding
initialize method with super method within?
Ryo
On 11月8日, 午後6:27, Frederick Cheung <[email protected]> wrote:
> On Nov 8, 8:04 am, RyoichiroKamiya<[email protected]>
> wrote:
>
> > Hi,
>
> > I am trying to set initial process when instantiating model by
> > overriding initialize() method which takes arguments. The initialize()
> > method overrides the parent ActiveRecord::Base class's by taking
> > arguments and assign arguments to its instance variables.
>
> > class Product < ActiveRecord::Base
>
> > def initialize(item = nil)
> > super
> > # and then process to assign variables from item argument to
> > instance variables
> > # ....
> > end
>
> What does the actual code in there look like? What is the error that
> you get ?
>
> Fred
>
>
>
> > In order to fully leverage ActiveRecord::Base class functionality, I'm
> > calling super to run the default initialization process (i.e. set up
> > all setter/getter methods). However, the Product class above still
> > can't find getter/setter methods for its variables. In the meantime, I
> > found the following blog article suggesting use after_initialize
> > instead of overriding Active Record object.
>
> > Rails: Don't override initialize on ActiveRecord
> > objectshttp://blog.dalethatcher.com/2008/03/rails-dont-override-initialize-o...
>
> > I could not find ways to set arguments for this after_initialize
> > approach.
>
> > Can anybody advise should I override initialize() or use
> > after_initialize with some ways to take arguments?
>
> > Thanks,
> > Ryo
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