engine/app/models/asset_collection.rb

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class AssetCollection
include Mongoid::Document
include Mongoid::Timestamps
include Mongoid::CustomFields
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## fields ##
field :name, :type => String
field :slug, :type => String
# field :asset_fields_counter, :type => Integer, :default => 0 # FIXME (custom fields)
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## associations ##
belongs_to_related :site
embeds_many :assets #, :custom_fields => true # FIXME (custom fields)
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# embeds_many :asset_fields # FIXME (custom fields)
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## behaviours ##
custom_fields_for :assets
# accepts_nested_attributes_for :asset_fields, :allow_destroy => true # FIXME (custom fields)
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## callbacks ##
before_validate :normalize_slug
before_save :store_asset_positions!
## validations ##
validates_presence_of :site, :name, :slug
validates_uniqueness_of :slug, :scope => :site_id
## methods ##
def ordered_assets
self.assets.sort { |a, b| (a.position || 0) <=> (b.position || 0) }
end
def assets_order
self.ordered_assets.collect(&:id).join(',')
end
def assets_order=(order)
@assets_order = order
end
def ordered_asset_fields # FIXME (custom fields)
self.asset_fields.sort { |a, b| (a.position || 0) <=> (b.position || 0) }
end
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protected
def normalize_slug
self.slug = self.name.clone if self.slug.blank? && self.name.present?
self.slug.slugify! if self.slug.present?
end
def store_asset_positions!
return if @assets_order.nil?
@assets_order.split(',').each_with_index do |asset_id, index|
self.assets.find(asset_id).position = index
end
self.assets.each do |asset|
if !@assets_order.split(',').include?(asset._id)
self.assets.delete(asset)
asset.send(:delete)
end
end
end
end