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# frozen_string_literal: true
module Gitlab
module BackgroundMigration
# Class that will backfill the following fields from user to user_details
# * linkedin
# * twitter
# * skype
# * website_url
# * location
# * organization
class BackfillUserDetailsFields < BatchedMigrationJob
operation_name :backfill_user_details_fields
feature_category :database
def perform
query = <<~SQL
(COALESCE(linkedin, '') IS DISTINCT FROM '')
OR (COALESCE(twitter, '') IS DISTINCT FROM '')
OR (COALESCE(skype, '') IS DISTINCT FROM '')
OR (COALESCE(website_url, '') IS DISTINCT FROM '')
OR (COALESCE(location, '') IS DISTINCT FROM '')
OR (COALESCE(organization, '') IS DISTINCT FROM '')
SQL
field_limit = UserDetail::DEFAULT_FIELD_LENGTH
each_sub_batch(
batching_scope: ->(relation) {
relation.where(query).select(
'id AS user_id',
"substring(COALESCE(linkedin, '') from 1 for #{field_limit}) AS linkedin",
"substring(COALESCE(twitter, '') from 1 for #{field_limit}) AS twitter",
"substring(COALESCE(skype, '') from 1 for #{field_limit}) AS skype",
"substring(COALESCE(website_url, '') from 1 for #{field_limit}) AS website_url",
"substring(COALESCE(location, '') from 1 for #{field_limit}) AS location",
"substring(COALESCE(organization, '') from 1 for #{field_limit}) AS organization"
)
}
) do |sub_batch|
upsert_user_details_fields(sub_batch)
end
end
def upsert_user_details_fields(relation)
connection.execute(
<<~SQL
INSERT INTO user_details (user_id, linkedin, twitter, skype, website_url, location, organization)
#{relation.to_sql}
ON CONFLICT (user_id)
DO UPDATE SET
"linkedin" = EXCLUDED."linkedin",
"twitter" = EXCLUDED."twitter",
"skype" = EXCLUDED."skype",
"website_url" = EXCLUDED."website_url",
"location" = EXCLUDED."location",
"organization" = EXCLUDED."organization"
SQL
)
end
end
end
end
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