在rake任务中使用database.yml而不是提供用户/密码

Question

How do I convert (this works):

desc "Import Bar"
task :import_bar => :environment do
  OCI8.new('user', 'pass', 'database').exec('select foo from bar') do |r| 
    puts r
  end
end

To something like this (not working):

desc "Import Bar"
task :import_bar => :environment do
  ActiveRecord::Base.connection.execute('select foo from bar') do |r|
    puts r
  end
end

database.yml

development:
  adapter: oracle_enhanced
  database: database
  username: user
  password: pass
  pool: 5
  timeout: 5000

rake import_bar

no output

Answer 1

You forgot to iterate through the objects using fetch, try:

desc "Import Bar"
task :import_bar => :environment do
  ActiveRecord::Base.connection.execute('select foo from bar').fetch() do |r|
    r.join(',')
  end
end