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# frozen_string_literal: true
module Decidim
# A Helper to render and link to resources.
module ResourceHelper
# Gets the classes linked to the given class for the `current_component`, and formats
# them in a nice way so that they can be used in a form. Resulting format looks like
# this, considering the given class is related to `Decidim::Meetings::Meeting`:
#
# [["decidim/meetings/meeting", "Meetings"]]
#
# This method is intended to be used as a check to render the filter or not. Use the
# `linked_classes_filter_values_for(klass)` method to get the form filter collection
# values.
#
# klass - The class that will have its linked resources formatted.
#
# Returns an Array of Arrays of Strings.
# Returns an empty Array if no links are found.
def linked_classes_for(klass)
return [] unless klass.respond_to?(:linked_classes_for)
klass.linked_classes_for(current_component).map do |k|
[k.underscore, content_tag(:span, t(k.demodulize.underscore, scope: "decidim.filters.linked_classes"))]
end
end
# Uses the `linked_classes_for(klass)` helper method to find the linked classes,
# and adds a default value to it so that it can be used directly in a form.
#
# Example:
#
# <% if linked_classes_for(klass).any? %>
# <%= form.collection_check_boxes :related_to, linked_classes_filter_values_for(klass), :first, :last %>
# <% end %>
#
# klass - The class that will have its linked resources formatted.
#
# Returns an Array of Arrays of Strings.
def linked_classes_filter_values_for(klass)
[["", content_tag(:span, t("all", scope: "decidim.filters.linked_classes"))]] + linked_classes_for(klass)
end
# Returns an instance of ResourceLocatorPresenter with the given resource
def resource_locator(resource)
return resource.resource_locator if resource.respond_to?(:resource_locator)
::Decidim::ResourceLocatorPresenter.new(resource)
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems