ips*_*sum 7 ruby initialization task thor
当我运行Thor任务时,是否可以先调用特定任务?
我的Thorfile:
class Db < Thor
desc "show_Version", "some description ..."
def show_version # <= needs a database connection
puts ActiveRecord::Migrator.current_version
end
private
def connect_to_database # <= call this always when a task from this file is executed
# connect here to database
end
end
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我可以在每个任务中编写"connect_to_database"方法,但这看起来不是很干.
The*_*heo 12
您可以使用它invoke来运行其他任务:
def show_version
invoke :connect_to_database
# ...
end
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这也将确保它们只运行一次,否则你可以像往常一样调用方法,例如
def show_version
connect_to_database
# ...
end
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或者您可以将调用添加到构造函数中,以使其在每次调用时首先运行:
def initialize(*args)
super
connecto_to_database
end
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打电话super是非常重要的,没有它,Thor将不知道该怎么做.