Is it possible to access @resource variables inside a type?
I would like to make some decisions on parameters based on other parameters
that may have already been set.
For example,
---
newparam(:param1) do
Puppet.debug "Found drivesperarray parameter"
desc "parameter 1"
validate do |value|
if resource[:otherparam] then
#dosomething
else
resource[:param1] = 0
end
end
Puppet.debug "Parameter 1 is: #{@resource[:param1]}"
end
---
But I keep getting messages like "undefined method `[]'' for
nil:NilClass"
Anyone have experience with this? I''ve tried searching around for
example
without much luck...
Thanks!
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On Tuesday, July 31, 2012 4:05:28 PM UTC-5, ZJE wrote:> > Is it possible to access @resource variables inside a type? > > I would like to make some decisions on parameters based on other > parameters that may have already been set. > > For example, > --- > newparam(:param1) do > Puppet.debug "Found drivesperarray parameter" > desc "parameter 1" > validate do |value| > if resource[:otherparam] then > #dosomething > else > resource[:param1] = 0 > end > end > Puppet.debug "Parameter 1 is: #{@resource[:param1]}" > end > --- > > But I keep getting messages like "undefined method `[]'' for nil:NilClass" > > Anyone have experience with this? I''ve tried searching around for example > without much luck... > > Thanks! >Actually, it turns out that setting "resource[:param1] = 0" invokes the validate loop and the whole thing blows up eventually throws "stack level too deep" (glad that it didn''t let it keep going) -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To view this discussion on the web visit https://groups.google.com/d/msg/puppet-users/-/bPZFhA3wtNMJ. To post to this group, send email to puppet-users@googlegroups.com. To unsubscribe from this group, send email to puppet-users+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/puppet-users?hl=en.
On Tuesday, July 31, 2012 2:05:28 PM UTC-7, ZJE wrote:> > Is it possible to access @resource variables inside a type? > > I would like to make some decisions on parameters based on other > parameters that may have already been set. > > For example, > --- > newparam(:param1) do > Puppet.debug "Found drivesperarray parameter" > desc "parameter 1" > validate do |value| > if resource[:otherparam] then > #dosomething > else > resource[:param1] = 0 > end > end > Puppet.debug "Parameter 1 is: #{@resource[:param1]}" > end > --- > > But I keep getting messages like "undefined method `[]'' for nil:NilClass" > > Anyone have experience with this? I''ve tried searching around for example > without much luck... > >It sounds like what you actually want is a munge block, which is used to change the value of the parameter. munge do |value| if resource[:otherparam] then #dosomething else 0 end end validate should be used only to raise an exception if the value is invalid. Puppet will call validate and then munge. Also, parameters are set in the order they''re defined in the type/<type>.rb file, and validated/munged before moving on to the next parameter. So a parameter can only depend on the values of parameters that come *before* it.> Thanks! >-- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To view this discussion on the web visit https://groups.google.com/d/msg/puppet-users/-/vNg7G08OxowJ. To post to this group, send email to puppet-users@googlegroups.com. To unsubscribe from this group, send email to puppet-users+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/puppet-users?hl=en.
On Tuesday, July 31, 2012 6:54:14 PM UTC-5, Nick Lewis wrote:> > On Tuesday, July 31, 2012 2:05:28 PM UTC-7, ZJE wrote: >> >> Is it possible to access @resource variables inside a type? >> >> I would like to make some decisions on parameters based on other >> parameters that may have already been set. >> >> For example, >> --- >> newparam(:param1) do >> Puppet.debug "Found drivesperarray parameter" >> desc "parameter 1" >> validate do |value| >> if resource[:otherparam] then >> #dosomething >> else >> resource[:param1] = 0 >> end >> end >> Puppet.debug "Parameter 1 is: #{@resource[:param1]}" >> end >> --- >> >> But I keep getting messages like "undefined method `[]'' for nil:NilClass" >> >> Anyone have experience with this? I''ve tried searching around for example >> without much luck... >> >> > It sounds like what you actually want is a munge block, which is used to > change the value of the parameter. > > munge do |value| > if resource[:otherparam] then > #dosomething > else > 0 > end > end > > validate should be used only to raise an exception if the value is > invalid. Puppet will call validate and then munge. Also, parameters are set > in the order they''re defined in the type/<type>.rb file, and > validated/munged before moving on to the next parameter. So a parameter can > only depend on the values of parameters that come *before* it. > > >> Thanks! >> >Hi Nick, You''re exactly right - even though I had read about munge, I completely forgot it and must''ve missed it a million times in the documentation. Thanks so much! -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To view this discussion on the web visit https://groups.google.com/d/msg/puppet-users/-/9qbvu_qT-jQJ. To post to this group, send email to puppet-users@googlegroups.com. To unsubscribe from this group, send email to puppet-users+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/puppet-users?hl=en.