Module: Decidim::FilterParamsHelper

Included in:
ViewModel
Defined in:
app/helpers/decidim/filter_params_helper.rb

Overview

A helper to allow only Decidim params to be added to a link. This is useful when we want to preserve the params from a search, ordering or paginating results. Using this, we can link back to where the user was at the show page.

Instance Method Summary collapse

Instance Method Details

Public: Builds a hash to be added to a _path or _url method with only allowed params.

params - An optional Hash with the values of the params. It will try to get them from the controller if none are present.

Returns a Hash.



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# File 'app/helpers/decidim/filter_params_helper.rb', line 16

def filter_link_params(params = nil)
  return {} if params.blank? && (!respond_to?(:controller) || !controller.respond_to?(:params))

  params = controller.params.to_unsafe_h if params.blank?

  params.stringify_keys.slice(
    "order",
    "filter",
    "page",
    "per_page",
    "locale"
  )
end