[chef] Re: Re: node.attribute? check nested

[Ranjib Dey < >]

this will bork , if node['foo'] is nil, 

im not aware of anything from chef api, but i know  this is a very common requirement,  I tend to use a helper method, like this :

def nested_attrbs?(*args)

  ret = true

   n = node

  args.each do |nesting|

    unless n.attribute?(nesting)

       ret = false

       break

     else

       n = n[nesting]

     end 

  end

  ret

end

On Sun, Jul 14, 2013 at 9:24 AM, Nic Grayson < " target="_blank"> > wrote:

node['foo']['bar'] is just a variable so any ruby logic will work

puts "it's not set" unless node['foo']['bar']

if node['foo']['bar'] == "biz" etc.

On Sun, Jul 14, 2013 at 11:02 AM, Daniil S < " target="_blank"> > wrote:

Hello.

Official documentation mentions such construction:

not_if { node.attribute?("some_command_complete") }

Can I check nested attribute with it?

For example, if i have attribute node['foo']['bar'], how can i check if it is set?