Jon questions

Jon answers

• Wrong Number of Arguments Errors when upgrading Rails 5.2 to 6.0
• Rails 3 Custom Validation for Email Uniqueness
• How to put angularjs attributes in rails erb
• no validates_attachment_file_name when upgrading to Paperclip 4.1 from 3.5
• how to test sending emails to both recipients (Rspec)
• Capybara choose("radio button") not working
• Bootstrap grid system formatting photos in Rails
• Run a rails query in batches
• How to translate timezone full names to tz abbreviations?
• Rails controller accept json POST request