26 lines
1023 B
Ruby
26 lines
1023 B
Ruby
# See http://doc.gitlab.com/ce/development/migration_style_guide.html
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# for more information on how to write migrations for GitLab.
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class SetUploadsPathSizeForMysql < ActiveRecord::Migration[4.2]
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include Gitlab::Database::MigrationHelpers
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# Set this constant to true if this migration requires downtime.
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DOWNTIME = false
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def up
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# We need at least 297 at the moment. For more detail on that number, see:
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# https://gitlab.com/gitlab-org/gitlab-ce/issues/40168#what-is-the-expected-correct-behavior
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#
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# Rails + PostgreSQL `string` is equivalent to a `text` field, but
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# Rails + MySQL `string` is `varchar(255)` by default. Also, note that we
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# have an upper limit because with a unique index, MySQL has a max key
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# length of 3072 bytes which seems to correspond to `varchar(1024)`.
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change_column :uploads, :path, :string, limit: 511
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end
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def down
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# It was unspecified, which is varchar(255) by default in Rails for MySQL.
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change_column :uploads, :path, :string
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end
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end
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