105 lines
3.1 KiB
Ruby
105 lines
3.1 KiB
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 FixWronglyRenamedRoutes < ActiveRecord::Migration
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include Gitlab::Database::RenameReservedPathsMigration::V1
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DOWNTIME = false
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disable_ddl_transaction!
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DISALLOWED_ROOT_PATHS = %w[
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-
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abuse_reports
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api
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autocomplete
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explore
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health_check
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import
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invites
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jwt
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koding
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member
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notification_settings
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oauth
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sent_notifications
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unicorn_test
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uploads
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users
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]
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FIXED_PATHS = DISALLOWED_ROOT_PATHS.map { |p| "#{p}0" }
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class Route < Gitlab::Database::RenameReservedPathsMigration::V1::MigrationClasses::Route
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self.table_name = 'routes'
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end
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def routes
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@routes ||= Route.arel_table
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end
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def namespaces
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@namespaces ||= Arel::Table.new(:namespaces)
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end
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def wildcard_collection(collection)
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collection.map { |word| "#{word}%" }
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end
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# The routes that got incorrectly renamed before, still have a namespace that
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# contains the correct path.
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# This query fetches all rows from the `routes` table that meet the following
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# conditions using `api` as an example:
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# - route.path ILIKE `api0%`
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# - route.source_type = `Namespace`
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# - namespace.parent_id IS NULL
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# - namespace.path ILIKE `api%`
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# - NOT(namespace.path ILIKE `api0%`)
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# This gives us all root-routes, that were renamed, but their namespace was not.
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#
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def wrongly_renamed
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Route.joins("INNER JOIN namespaces ON routes.source_id = namespaces.id")
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.where(
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routes[:source_type].eq('Namespace')
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.and(namespaces[:parent_id].eq(nil))
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)
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.where(namespaces[:path].matches_any(wildcard_collection(DISALLOWED_ROOT_PATHS)))
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.where.not(namespaces[:path].matches_any(wildcard_collection(FIXED_PATHS)))
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.where(routes[:path].matches_any(wildcard_collection(FIXED_PATHS)))
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end
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# Using the query above, we just fetch the `route.path` & the `namespace.path`
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# `route.path` is the part of the route that is now incorrect
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# `namespace.path` is what it should be
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# We can use `route.path` to find all the namespaces that need to be fixed
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# And we can use `namespace.path` to apply the correct name.
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#
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def paths_and_corrections
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connection.select_all(
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wrongly_renamed.select(routes[:path], namespaces[:path].as('namespace_path')).to_sql
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)
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end
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# This can be used to limit the `update_in_batches` call to all routes for a
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# single namespace, note the `/` that's what went wrong in the initial migration.
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#
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def routes_in_namespace_query(namespace)
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routes[:path].matches_any([namespace, "#{namespace}/%"])
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end
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def up
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paths_and_corrections.each do |root_namespace|
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wrong_path = root_namespace['path']
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correct_path = root_namespace['namespace_path']
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replace_statement = replace_sql(Route.arel_table[:path], wrong_path, correct_path)
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update_column_in_batches(:routes, :path, replace_statement) do |table, query|
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query.where(routes_in_namespace_query(wrong_path))
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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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end
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end
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