将source_location 和command 字段添加到您的papertrail 版本表将帮助您:
- track what 命令导致
nil whodunnit 发生变化。
- 确保正确记录由 rake 任务 或 rails 控制台 发起的更改。
为此,请创建迁移以将 source_location 和 command 字段添加到您的版本表中:
class AddSourceLocationAndCommandToVersions < ActiveRecord::Migration
def change
add_column :versions, :source_location, :text
add_column :versions, :command, :text
end
end
我在papertrail.rb 中设置了以下内容。我正在使用JSON serializer,但这些更改可能适用于普通序列化程序。 serializer 声明之后的代码是您感兴趣的:
require "paper_trail/frameworks/rails"
require "paper_trail"
# the following line is required for PaperTrail >= 4.0.0 with Rails
PaperTrail::Rails::Engine.eager_load!
PaperTrail.config.enabled = true
PaperTrail.serializer = PaperTrail::Serializers::JSON
# Store some metadata about where the change came from, even for rake tasks, etc.
# See: https://github.com/paper-trail-gem/paper_trail/wiki/Setting-whodunnit-in-the-rails-console
def PaperTrail.set_global_metadata
request.controller_info ||= {}
request.controller_info[:command] ||= "#{File.basename($PROGRAM_NAME)} #{ARGV.join ' '} (#{$PID})"
request.controller_info[:source_location] = caller.find { |line|
line.starts_with? Rails.root.to_s and
!line.starts_with? __FILE__
}
end
# Defer evaluation in case we're using spring loader (otherwise it would be something like "spring app | app | started 13 secs ago | development")
# There's no way to set up deferred evaluation of PaperTrail.request.controller_info from here like
# we can with whodunnit, so abuse that property of PaperTrail.request.whodunnit to set other
# metadata. Reserve the whodunnit field for storing the actual name or id of the human who made the
# change.
PaperTrail.request.whodunnit = ->() {
PaperTrail.set_global_metadata
if Rails.const_defined?("Console") || $rails_rake_task
"#{`whoami`.strip}: console"
else
"#{`whoami`.strip}: #{File.basename($PROGRAM_NAME)} #{ARGV.join ' '}"
end
}
Rails.application.configure do
console do
PaperTrail.request.controller_info = { command: "rails console" }
PaperTrail.request.whodunnit = ->() {
PaperTrail.set_global_metadata
@paper_trail_whodunnit ||= (
if Rails.const_defined?("Console") || $rails_rake_task
"#{`whoami`.strip}: console"
else
"#{`whoami`.strip}: #{File.basename($PROGRAM_NAME)} #{ARGV.join ' '}"
end
)
}
end
end
请注意,在请求之外发生记录创建的任何地方,如果您不希望它为空,您可以手动将whodunnit 值设置为特定的值。例如。在我的种子文件中,我执行以下操作:
class SeedCreator
def initialize
PaperTrail.request.whodunnit = ->() {
PaperTrail.set_global_metadata # save source_location & command
"seed" # set whodunnit value to "seed"
}
create_campaign
create_users
# more seeding of models....
end
end
除了提高 Papertrail 表的质量(知道哪个命令触发了记录更新)之外,此配置还可以帮助您确定幻象 whodunnits 的保存位置。