On Fri, 5 Apr 2013 00:57:32 -0700 (PDT)
Gavin Williams <fatmc...@gmail.com> wrote:

> Morning all
> 
> I'm working on converting some of my NetApp providers to
> prefetch/flush style to try and optimize performance. 
> 
> I've hit an issue on my Netapp_user provider, around handling
> resource creation versus resource modification? 
> What's the easiest way to differentiate? 
> 
> Current code is here: 
> https://github.com/fatmcgav/fatmcgav-netapp/commit/66092978f4182c5474a60011db99ee2e3e12e689
> 
> Any tips appreciated. 
> 
> Regards
> Gavin 
> 

There is no way to check *why* the flush method was called, you just now
that at least one property has been updated. You do not see if `ensure`
updated or let's say `passmaxage`. Does this actually cause problems?

One thing I've spotted is that your create method does update the
@property_hash[:ensure] value but no other value. This seems to be
wrong because if the resource was absent before, @property_hash is
initally an empty hash. Because when `ensure` changes no other
properties are synced you don't have the desired values of all the other
properties available in the `flush` method. So your `create` method
should propably look like
    
    def create
      resource.class.validproperties.each do |property|
        if value = resource.should(property)
          @property_hash[property] = value
        end
      end
    end

-Stefan

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