engine/app/models/layout.rb

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class Layout < LiquidTemplate
## associations ##
has_many_related :pages
embeds_many :parts, :class_name => 'PagePart'
## callbacks ##
before_save :build_parts_from_value
after_save :update_parts_in_pages
## validations ##
validates_format_of :value, :with => Locomotive::Regexps::CONTENT_FOR_LAYOUT, :message => :missing_content_for_layout
## methods ##
protected
def build_parts_from_value
if self.value_changed? || self.new_record?
self.parts.clear
body = nil
self.value.scan(Locomotive::Regexps::CONTENT_FOR).each do |part|
part[1].strip!
part[1] = nil if part[1].empty?
slug = part[0].strip.downcase
if slug == 'layout'
body = PagePart.new :slug => slug, :name => I18n.t('attributes.defaults.page_parts.name')
else
self.parts.build :slug => slug, :name => (part[1] || slug).gsub("\"", '')
end
end
self.parts.insert(0, body) if body
@_update_pages = true if self.value_changed?
end
end
def update_parts_in_pages
self.pages.each { |p| p.send(:update_parts!, self.parts) } if @_update_pages
end
end