7d4da81272
* install rubocop * 1961 automatic rubocop fixes * update rubocop.yml to ignore half of the remaining cops * rubocop lint warnings * random other warnings fixed
36 lines
1 KiB
Ruby
36 lines
1 KiB
Ruby
class MappingPolymorphism < ActiveRecord::Migration
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def up
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add_column :mappings, :mappable_id, :integer
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add_column :mappings, :mappable_type, :string
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add_index :mappings, [:mappable_id, :mappable_type]
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Mapping.find_each do |mapping|
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if mapping.synapse_id.nil? && mapping.topic_id.nil?
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puts "Mapping id=#{mapping.id} has no valid id, skipping!"
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next
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end
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if !mapping.synapse_id.nil? && !mapping.topic_id.nil?
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puts "Mapping id=#{mapping.id} has both topic and synapse ids, skipping!"
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next
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end
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if mapping.synapse_id.nil?
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mapping.mappable = Topic.find_by(id: mapping.topic_id)
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else
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mapping.mappable = Synapse.find_by(id: mapping.synapse_id)
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end
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if mapping.mappable.nil?
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mapping.delete
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else
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mapping.save
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end
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end
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end
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def down
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remove_index :mappings, [:mappable_id, :mappable_type]
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remove_column :mappings, :mappable_id, :integer
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remove_column :mappings, :mappable_type, :string
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end
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end
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