52 lines
1.5 KiB
Ruby
52 lines
1.5 KiB
Ruby
# Copyright (C) 2012-2021 Zammad Foundation, http://zammad-foundation.org/
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# rubocop:disable Style/ClassVars
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module Import
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module OTRS
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class History
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include Import::Helper
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def initialize(history)
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init_callback(history)
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ensure_history_attribute
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add
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end
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def init_callback(_)
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raise 'No init callback defined for this history!'
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end
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private
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def add
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::History.add(@history_attributes)
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reset_primary_key_sequence('histories')
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end
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# make sure that no other thread is importing just the same
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# history attribute which causes a ActiveRecord::RecordNotUnique
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# exception we (currently) can't handle otherwise
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def ensure_history_attribute
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history_attribute = @history_attributes[:history_attribute]
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return if !history_attribute
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return if history_attribute_exists?(history_attribute)
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@@created_history_attributes[history_attribute] = true
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::History.attribute_lookup(history_attribute)
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end
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def history_attribute_exists?(name)
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@@created_history_attributes ||= {}
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return false if !@@created_history_attributes[name]
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# make sure the history attribute is added before we
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# we perform further import
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# otherwise the following import logic (add) will
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# try to add the history attribute, too
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sleep 1 until ::History::Attribute.exists?(name: name)
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true
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end
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end
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end
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end
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