59 lines
1.5 KiB
Ruby
59 lines
1.5 KiB
Ruby
module Models
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module Extensions
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module Page
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module Parts
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extend ActiveSupport::Concern
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included do
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embeds_many :parts, :class_name => 'PagePart'
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before_validation do |p|
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if p.parts.empty?
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p.parts << PagePart.build_body_part(p.respond_to?(:body) ? p.body : nil)
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end
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end
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end
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module InstanceMethods
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def parts_attributes=(attributes)
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self.update_parts(attributes.values.map { |attrs| PagePart.new(attrs) })
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end
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def joined_parts
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self.parts.enabled.map(&:template).join('')
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end
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protected
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def update_parts(parts)
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performed = []
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# add / update
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parts.each do |part|
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if (existing = self.parts.detect { |p| p.id == part.id || p.slug == part.slug })
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existing.attributes = part.attributes.delete_if { |k, v| %w{_id slug}.include?(k) }
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else
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self.parts << (existing = part)
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end
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performed << existing unless existing.disabled?
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end
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# disable missing parts
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(self.parts.map(&:slug) - performed.map(&:slug)).each do |slug|
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self.parts.detect { |p| p.slug == slug }.disabled = true
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end
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end
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def update_parts!(new_parts)
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self.update_parts(new_parts)
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self.save
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end
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end
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end
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end
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end
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end
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