27 lines
512 B
Elixir
27 lines
512 B
Elixir
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defmodule Zoeyscomputer.Repo.Migrations.ChangeGistsId do
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alias Ecto.Repo
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alias Zoeyscomputer.IdGenerator
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use Ecto.Migration
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import Ecto.Query, only: [from: 2]
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def change do
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alter table(:gists) do
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add(:new_id, :string)
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end
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flush()
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execute """
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UPDATE gists SET new_id = substring(md5(random()::text), 0, 8)
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"""
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alter table(:gists) do
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remove(:id)
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modify(:new_id, :string, primary_key: true)
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end
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rename(table(:gists), :new_id, to: :id)
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end
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end
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