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
57 lines
1.6 KiB
Ruby
57 lines
1.6 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 MigrateUserExternalMailData < 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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include EachBatch
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end
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class UserSyncedAttributesMetadata < ActiveRecord::Base
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self.table_name = 'user_synced_attributes_metadata'
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include EachBatch
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end
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def up
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User.each_batch do |batch|
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start_id, end_id = batch.pluck('MIN(id), MAX(id)').first
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execute <<-EOF
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INSERT INTO user_synced_attributes_metadata (user_id, provider, email_synced)
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SELECT id, email_provider, external_email
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FROM users
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WHERE external_email = TRUE
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AND NOT EXISTS (
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SELECT true
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FROM user_synced_attributes_metadata
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WHERE user_id = users.id
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AND (provider = users.email_provider OR (provider IS NULL AND users.email_provider IS NULL))
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)
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AND id BETWEEN #{start_id} AND #{end_id}
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EOF
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end
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end
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def down
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UserSyncedAttributesMetadata.each_batch do |batch|
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start_id, end_id = batch.pluck('MIN(id), MAX(id)').first
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execute <<-EOF
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UPDATE users
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SET users.email_provider = metadata.provider, users.external_email = metadata.email_synced
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FROM user_synced_attributes_metadata as metadata, users
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WHERE metadata.email_synced = TRUE
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AND metadata.user_id = users.id
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AND id BETWEEN #{start_id} AND #{end_id}
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EOF
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end
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end
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end
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