mirror of
https://github.com/openfoodfoundation/openfoodnetwork
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47 lines
1.2 KiB
Ruby
47 lines
1.2 KiB
Ruby
# Finds a unique permalink for a new or updated record.
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# It considers soft-deleted records which are ignored by Spree.
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# Spree's work:
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# https://github.com/spree/spree/blob/09b55f7/core/lib/spree/core/permalinks.rb
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#
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# This may become obsolete with Spree 2.3.
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# https://github.com/spree/spree/commits/master/core/lib/spree/core/permalinks.rb
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module PermalinkGenerator
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def self.included(base)
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base.extend(ClassMethods)
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end
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module ClassMethods
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def find_available_value(existing, requested)
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return requested unless existing.include?(requested)
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used_indices = existing.map do |p|
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p.slice!(/^#{requested}/)
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p.match(/^\d+$/).to_s.to_i
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end
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options = (1..used_indices.length + 1).to_a - used_indices
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requested + options.first.to_s
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end
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end
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def create_unique_permalink(requested)
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existing = others.where("permalink LIKE ?", "#{requested}%").pluck(:permalink)
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self.class.find_available_value(existing, requested)
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end
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def others
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if id.nil?
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scope_with_deleted
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else
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scope_with_deleted.where('id != ?', id)
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end
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end
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def scope_with_deleted
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if self.class.respond_to?(:with_deleted)
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self.class.with_deleted
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else
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self.class.where(nil)
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end
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end
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end
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