Thanks for this useful article.
I’m developing an application dedicated to generate statistical reports, I would like that user after saving their stat report they save sql queries too. To do that I wrote the following module:
module SqlHunter
class ActiveRecord::ConnectionAdapters::AbstractAdapter

@@queries = []
cattr_accessor :queries
def log_info_with_trace(sql, name, runtime)
return unless @logger && @logger.debug?
@@queries << sql
end
alias_method_chain :log_info, :trace
end
end

in the controller I wrote that

sqlfile = File.open("public/advancedStats/#{@dir_name}/advancedStatQuery.sql", 'w')
@queries = ActiveRecord::ConnectionAdapters::AbstractAdapter::queries
for query in @queries do
sqlfile.write("#{query} \n")
end
sqlfile.close

I also modified Rails environment by adding this line:

ActiveRecord::Base.logger.level = Logger::DEBUG

This program is working and I can get queries but, all queries. In contrast I need only the specific queries done by one user to generate a stat report.

Do you have any idea to fix that,
Thanks,

mgatri