30 lines
1.1 KiB
Ruby
30 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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module InitializerConnections
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# Prevents any database connections within the block
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# by using an empty connection handler
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# rubocop:disable Database/MultipleDatabases
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def self.with_disabled_database_connections
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return yield if Gitlab::Utils.to_boolean(ENV['SKIP_RAISE_ON_INITIALIZE_CONNECTIONS'])
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original_handler = ActiveRecord::Base.connection_handler
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dummy_handler = ActiveRecord::ConnectionAdapters::ConnectionHandler.new
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ActiveRecord::Base.connection_handler = dummy_handler
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yield
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if dummy_handler&.connection_pool_names&.present?
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raise "Unxpected connection_pools (#{dummy_handler.connection_pool_names}) ! Call `connects_to` before this block"
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end
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rescue ActiveRecord::ConnectionNotEstablished
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message = "Database connection should not be called during initializers. Read more at https://docs.gitlab.com/ee/development/rails_initializers.html#database-connections-in-initializers"
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raise message
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ensure
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ActiveRecord::Base.connection_handler = original_handler
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dummy_handler&.clear_all_connections!
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end
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# rubocop:enable Database/MultipleDatabases
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end
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