Fun Things To Do

Finding js errors while precompiling

JS_PATH = "app/assets/javascripts/**/*.js"; 
Dir[JS_PATH].each do |file_name|
  begin
    Uglifier.compile(File.read(file_name))
    print '.'
  rescue
    puts "\n#{file_name}"
  end
end

Form Object with nested fields

https://stackoverflow.com/a/43662000/1507845

lodash.js

var object = { top_level: 2, attrs: { foo: { baz: 'bang' } } }

object.attrs.nope.no #=> Uncaught TypeError: Cannot read property 'no' of undefined

_.chain(object).get('attrs').get('nope').get('no', 'default').value(); #=> 'default'

simple_form.rb

# Nice % sign at end of input
config.wrappers :with_addon, tag: 'div', class: 'form-group with-addon', error_class: 'has-error' do |b|
  b.use :html5
  b.use :label, class: 'control-label', wrap_with: { tag: 'span', class: 'label-block' }

  b.wrapper tag: 'span', class: 'input-group input-right' do |ba|
    ba.use :input, class: 'form-control'
    ba.wrapper tag: 'span', class: 'input-group-addon' do |ao|
      ao.use :hint
    end
  end
  b.use :error, wrap_with: { tag: 'span', class: 'help-block' }
end

# Usage
= f.input :tax_amount, wrapper: :with_addon, hint: '%'

Splats and content_tag

# Definition
def checkbox_no_form(label: nil, **options)
  capture do
    concat content_tag :div, class: 'xcitee-checkbox', & -> do
      concat content_tag :label, & -> do
        concat label
        concat content_tag :input, nil, { type: 'checkbox', **options }
        concat content_tag :span, nil, class: 'x-checkbox'
      end
    end
  end
end

# Usage
= checkbox_no_form(class: 'active-only', label: t('.active_only'), checked: checked)