0fc9f9d3e7
DB schema generated by a migration may look different in rails 4 and 5 (because rails 5 may use different default values). For this reason it's important to explicitly set for which rails version a migration was written for. See https://stackoverflow.com/questions/35929869/activerecordmigration-deprecation-warning-asks-for-rails-version-but-im-no/35930912#35930912
143 lines
3.2 KiB
Ruby
143 lines
3.2 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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# This migration generates missing routes for any projects and namespaces that
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# don't already have a route.
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#
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# On GitLab.com this would insert 611 project routes, and 0 namespace routes.
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# The exact number could vary per instance, so we take care of both just in
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# case.
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class GenerateMissingRoutes < ActiveRecord::Migration[4.2]
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include Gitlab::Database::MigrationHelpers
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DOWNTIME = false
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disable_ddl_transaction!
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class User < ActiveRecord::Base
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self.table_name = 'users'
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end
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class Route < ActiveRecord::Base
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self.table_name = 'routes'
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end
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module Routable
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def build_full_path
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if parent && path
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parent.build_full_path + '/' + path
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else
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path
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end
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end
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def build_full_name
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if parent && name
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parent.human_name + ' / ' + name
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else
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name
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end
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end
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def human_name
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build_full_name
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end
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def attributes_for_insert
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time = Time.zone.now
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{
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# We can't use "self.class.name" here as that would include the
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# migration namespace.
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source_type: source_type_for_route,
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source_id: id,
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created_at: time,
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updated_at: time,
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name: build_full_name,
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# The route path might already be taken. Instead of trying to generate a
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# new unique name on every conflict, we just append the row ID to the
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# route path.
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path: "#{build_full_path}-#{id}"
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}
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end
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end
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class Project < ActiveRecord::Base
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self.table_name = 'projects'
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include EachBatch
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include GenerateMissingRoutes::Routable
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belongs_to :namespace, class_name: 'GenerateMissingRoutes::Namespace'
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has_one :route,
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as: :source,
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inverse_of: :source,
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class_name: 'GenerateMissingRoutes::Route'
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alias_method :parent, :namespace
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alias_attribute :parent_id, :namespace_id
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def self.without_routes
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where(
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'NOT EXISTS (
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SELECT 1
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FROM routes
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WHERE source_type = ?
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AND source_id = projects.id
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)',
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'Project'
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)
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end
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def source_type_for_route
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'Project'
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end
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end
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class Namespace < ActiveRecord::Base
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self.table_name = 'namespaces'
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include EachBatch
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include GenerateMissingRoutes::Routable
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belongs_to :parent, class_name: 'GenerateMissingRoutes::Namespace'
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belongs_to :owner, class_name: 'GenerateMissingRoutes::User'
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has_one :route,
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as: :source,
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inverse_of: :source,
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class_name: 'GenerateMissingRoutes::Route'
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def self.without_routes
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where(
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'NOT EXISTS (
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SELECT 1
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FROM routes
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WHERE source_type = ?
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AND source_id = namespaces.id
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)',
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'Namespace'
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)
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end
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def source_type_for_route
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'Namespace'
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end
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end
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def up
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[Namespace, Project].each do |model|
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model.without_routes.each_batch(of: 100) do |batch|
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rows = batch.map(&:attributes_for_insert)
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Gitlab::Database.bulk_insert(:routes, rows)
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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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# Removing routes we previously generated makes no sense.
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end
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end
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