Module: BMC::SortingHelper

Included in:
AllHelpers, Sorter
Defined in:
app/helpers/bmc/sorting_helper.rb

Instance Method Summary collapse

Instance Method Details

#sortable_column(name, column, options = {}) ⇒ Object 



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# File 'app/helpers/bmc/sorting_helper.rb', line 2

def sortable_column(name, column, options = {})
  unless column.is_a?(Symbol)
    raise ArgumentError, "invalid column, please use symbol"
  end

  current_column, current_direction = sortable_column_order

  if current_column == column
    if current_direction == :asc
      name           = "#{name} ↓"
      new_sort_param = "-#{column}"
    end

    if current_direction == :desc
      name           = "#{name} ↑"
      new_sort_param = column
    end

    klass = "sort #{current_direction}"
  else
    new_sort_param = column
    klass          = "sort"
  end

  unless (url_params = options.delete(:url_params))
    url_params = (params.try(:permit!) || params).to_h.symbolize_keys
  end
  url_params[:sort] = new_sort_param

  html_options = {class: klass}.merge(options)

  link_to(name, url_params, html_options)
end

#sortable_column_order(sort_param = ) ⇒ Object 



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# File 'app/helpers/bmc/sorting_helper.rb', line 36

def sortable_column_order(sort_param = params[:sort])
  sort_param = sort_param.to_s

  if sort_param.present?
    if sort_param.start_with?("-")
      column     = sort_param[1..].to_sym
      direction  = :desc
    else
      column     = sort_param.to_sym
      direction  = :asc
    end
  end

  if block_given?
    yield(column, direction)
  else
    [column, direction]
  end
end