73 lines
1.6 KiB
Ruby
73 lines
1.6 KiB
Ruby
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class Carto::Log < ActiveRecord::Base
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has_one :data_import, class_name: Carto::DataImport, foreign_key: :logger
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MAX_ENTRY_LENGTH = 256
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ENTRY_POSTFIX = "\n"
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ENTRY_FORMAT = "%s: %s#{ENTRY_POSTFIX}"
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TYPE_USER_CREATION = 'user_creation'.freeze
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# INFO: disable ActiveRecord inheritance column
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self.inheritance_column = :_type
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def self.new_user_creation
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log = Carto::Log.new
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log.entries = 'New user creation'
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log.type = TYPE_USER_CREATION
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log
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end
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def append(line, truncate = true, timestamp = Time.now.utc)
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line.slice!(MAX_ENTRY_LENGTH..-1) if truncate
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entry = ENTRY_FORMAT % [ timestamp, line.slice(0..MAX_ENTRY_LENGTH) ]
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self.entries = "#{self.entries}#{entry}"
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self.save
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end
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def append_exception(line, exception:, truncate: true, timestamp: Time.now.utc)
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append("#{line}: #{exception_to_string(exception)}", truncate, timestamp)
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end
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def store
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self.save
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end
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def logger
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@logger ||= LogWriter.new(self)
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end
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private
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def exception_to_string(error)
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error.inspect + "\n" + error.backtrace.join("\n") + "\n"
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end
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# A logger implementation that logs to this Carto::Log
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class LogWriter < ::Logger
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SAVE_BLOCK = 10 # Save the changes to DB every X lines
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def initialize(log)
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@log = log
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@stored_entries = 0
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end
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def add(_severity, _progname = nil, message = nil)
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if message.present?
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@log.entries += message.to_s + "\n"
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@stored_entries += 1
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if @stored_entries >= SAVE_BLOCK
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@stored_entries = 0
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@log.save
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end
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end
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end
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def close
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@log.save
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end
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end
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end
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