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module WithUsages
extend ActiveSupport::Concern
included do
has_many :usages, as: :item
before_destroy :ensure_unused!
organic_on :usages
end
def usage_in_organization(organization = Organization.current)
usages_in_organization(organization).first.try(:parent_item)
end
def usage_in_organization_of_type(type, organization = Organization.current)
item = usage_in_organization(organization)
item.is_a?(type) ? item : nil
end
def navigable_content_in(organization = Organization.current)
self if used_in?(organization)
end
def content_used_in?(organization)
navigable_content_in(organization).present?
end
def used_in?(organization)
usage_in_organization(organization).present?
end
class_methods do
def aggregate_of(association)
super
revamp "rebuild_#{association}!" do |_, this, children, hyper|
old_children = this.send association
added_children = children - old_children
hyper.(children)
this.usages.each { |it| it.index_children!(added_children) }
this
end
end
end
private
def ensure_unused!
if usages.present?
errors.add :base, :in_use, organization: usages.first.organization.name
throw :abort
end
end
end
Version data entries
46 entries across 46 versions & 1 rubygems