24 lines
639 B
Ruby
24 lines
639 B
Ruby
# frozen_string_literal: true
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class AddTopicCustomFields < ActiveRecord::Migration[4.2]
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def change
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create_table :topic_custom_fields do |t|
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t.integer :topic_id, null: false
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t.string :name, limit: 256, null: false
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t.text :value
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t.timestamps null: false
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end
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add_index :topic_custom_fields, %i[topic_id name]
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# migrate meta_data into custom fields
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execute <<-SQL
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INSERT INTO topic_custom_fields(topic_id, name, value)
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SELECT id, (each(meta_data)).key, (each(meta_data)).value
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FROM topics WHERE meta_data <> ''
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SQL
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remove_column :topics, :meta_data
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end
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end
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