engineersmnky questions

engineersmnky answers

• Update_all query with joins in rails console
• Rollback entire transaction within nested transaction
• Generate a hash of all letters and digits
• Rails: Convert a complex SQL query to Arel or ActiveRecord
• Conditional CSS in Ruby and Haml Table
• How to sanitize Arel SQL?
• Why does Ruby use =~ instead of ~= for matching operator?
• dry-struct How to conditionally validate one attribute?
• FactoryGirl initialize_with multiple params
• What are some nice ways to reverse a nested hash?