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application_helper.rb
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Sun, Aug 10, 9:06 AM

application_helper.rb
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module ApplicationHelper
# Custom helper for better display of big numbers
# @example number_by_magnitude(4242)
# "4.2K"
#
# @param number[Numeric]
# @return [String] human friendly respresentation
def number_by_magnitude(number)
number_to_human(number, units: { thousand: :K, million: :M, billion: :G })
end
# Creates a bootstrap form-group div with an additional 'Add' button next to the select field
#
# @param object[ActiveRecord::Object] the form's subject
# @param resource[Symbol] the objects class
# @param attr[Symbol] the select box's attribute
# @param attr_name[String] the attribute's display name
# @param options[Array] the select box options
# @param path[String] the add button's path
def select_with_errors_and_button(object, resource, attr, attr_name, options, path)
has_errors = object.errors[attr].present?
content_tag(:div, class: "form-group #{' has-error' if has_errors }") do
attr_label = label(resource, attr, attr_name, class: 'control-label col-xs-4 required')
select_div = content_tag(:div, class: 'col-xs-6') do
select_part = select_tag([resource, attr].join('_').to_sym,
options,
name: "#{resource}[#{attr}]",
class: 'form-control'
)
if has_errors
select_part.concat(content_tag(:span, class: 'help-block') { object.errors[attr].first })
end
select_part
end
button_part = content_tag(:div, class: 'col-xs-1') do
link_to 'Add', path, class: 'btn btn-primary', role: 'button'
end
attr_label.concat(select_div).concat(button_part)
end
end
# Returns a style class depending on the given parameter
#
# @param status[Char]
def success_class(status)
case status
when 'T' then 'success'
when 'E' then 'danger'
end
end
end

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