54 lines
1.2 KiB
Ruby
54 lines
1.2 KiB
Ruby
require 'migration/column_dropper'
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class CreatePostReplyKeys < ActiveRecord::Migration[5.2]
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def up
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create_table :post_reply_keys do |t|
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t.integer :user_id, null: false
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t.integer :post_id, null: false
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t.uuid :reply_key, null: false
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t.timestamps null: false
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end
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add_index :post_reply_keys, :reply_key, unique: true
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Migration::ColumnDropper.mark_readonly(:email_logs, :reply_key)
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sql = <<~SQL
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DELETE FROM email_logs
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WHERE id IN (
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SELECT id
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FROM (
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SELECT
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id,
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ROW_NUMBER() OVER(PARTITION BY post_id, user_id ORDER BY id DESC) AS row_num
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FROM email_logs
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) t
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WHERE t.row_num > 1
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)
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SQL
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execute(sql)
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sql = <<~SQL
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INSERT INTO post_reply_keys(
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user_id, post_id, reply_key, updated_at, created_at
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) SELECT
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user_id,
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post_id,
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reply_key,
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updated_at,
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created_at
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FROM email_logs
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WHERE reply_key IS NOT NULL AND post_id IS NOT NULL AND user_id IS NOT NULL
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SQL
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execute(sql)
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add_index :post_reply_keys, [:user_id, :post_id], unique: true
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end
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def down
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raise ActiveRecord::IrreversibleMigration
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end
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end
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