module Locomotive class Snippet include Locomotive::Mongoid::Document ## fields ## field :name field :slug field :template ## associations ## referenced_in :site, :class_name => 'Locomotive::Site' ## callbacks ## before_validation :normalize_slug after_save :update_templates after_destroy :update_templates ## validations ## validates_presence_of :site, :name, :slug, :template validates_uniqueness_of :slug, :scope => :site_id ## behaviours ## attr_protected :id attr_accessible :name, :slug, :template ## methods ## def as_json(options = {}) Locomotive::SnippetPresenter.new(self).as_json end protected def normalize_slug # TODO: refactor it self.slug = self.name.clone if self.slug.blank? && self.name.present? self.slug.permalink! if self.slug.present? end def update_templates return unless (self.site rescue false) # not run if the site is being destroyed pages = self.site.pages.any_in(:snippet_dependencies => [self.slug]).to_a pages.each do |page| self._change_snippet_inside_template(page.template.root) page.send(:_serialize_template) Page.without_callback(:save, :after, :update_template_descendants) do page.save(:validate => false) end end end def _change_snippet_inside_template(node) case node when Locomotive::Liquid::Tags::Snippet node.refresh(self) if node.slug == self.slug when Locomotive::Liquid::Tags::InheritedBlock _change_snippet_inside_template(node.parent) if node.parent end # Walk the children of this entry if they're available. if node.respond_to?(:nodelist) (node.nodelist || []).each do |child| self._change_snippet_inside_template(child) end end end end end