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Last active April 16, 2022 08:31
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rails development notes
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rails-notes.md

Ruby on Rails notes

this gist contain my notes from developing apps with ruby on rails framework correction / suggestion are welcome, thank you

JavaScript on Rails

rails using technique called 'unobtrusive javascript' for handling most of their javascript unobstrusive is just a way to remove inline javascript trigger event ( like click ) to separate js using data- attribute Notes on flash message

  • put flash message inside div with id ( e.g #notice ) and make it partial ( shared/flash_message )
  • give form_with a local:false
  • or remote: true to button_to method
  • make file action_name.js.erb ( or whatever the action_name called )
  • then put this inside action_name.js.erb
$('#notice').html("<%= j render 'shared/flash', flash: flash %>");
  • the action will render flash message, and we can get the message / status via flash: flash ( local )
  • replace dom that change using dom_id helper, or some id of your own
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