<@492751562872193025> <@138354902966599681>  and another question, please
when I use Resource tools, how can I declare variable since I don't have access to the controller?
`<%
  @certificate = @resource.record
  @supplier = @certificate.supplier
  @company_rf = @supplier.company_rf
  @url = Certificates::CalculateLink.call(certificate: @certificate)
  @global_certificate = Certificates::FindGlobalCertificate.call(certificate: @certificate)
%>`
I did this but it is a very bad practice and bad smell

declare them on the `.rb` file and then use them in the `erb` using `tool.SOMETHING`

<@492751562872193025> sorry but I could not do this... what .rb file?
BaseResource or BaseResourceTool?
And how can I declare these variables?
I did not find it anywhere

https://docs.avohq.io/3.0/resource-tools.html 
deserves a topic here like Custom variables

You can declare them on the tool inicializer

you should declare them on the `tool_name.rb` file

when you generated the tool `r g avo:resource_tool something`, you got two files. `something.rb` and `something.html.erb`. the `something.rb` file is where you should declare the variables

https://github.com/avo-hq/avodocs/issues/146