47 lines
1.1 KiB
Ruby
47 lines
1.1 KiB
Ruby
class EnvironmentSerializer < BaseSerializer
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include WithPagination
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Item = Struct.new(:name, :size, :latest)
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entity EnvironmentEntity
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def within_folders
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tap { @itemize = true }
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end
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def itemized?
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@itemize
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end
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def represent(resource, opts = {})
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if itemized?
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itemize(resource).map do |item|
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{ name: item.name,
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size: item.size,
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latest: super(item.latest, opts) }
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end
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else
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super(resource, opts)
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end
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end
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private
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def itemize(resource)
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items = resource.order('folder ASC')
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.group('COALESCE(environment_type, name)')
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.select('COALESCE(environment_type, name) AS folder',
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'COUNT(*) AS size', 'MAX(id) AS last_id')
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# It makes a difference when you call `paginate` method, because
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# although `page` is effective at the end, it calls counting methods
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# immediately.
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items = @paginator.paginate(items) if paginated?
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environments = resource.where(id: items.map(&:last_id)).index_by(&:id)
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items.map do |item|
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Item.new(item.folder, item.size, environments[item.last_id])
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end
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end
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end
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