[英]Save Rails ActiveRecord objects into a temporary table (MySQL)
A user can import data into our website from a file. 用户可以从文件中将数据导入我们的网站。 The data normally contains several hundred Items (Item < ActiveRecord::Base). 数据通常包含数百个项目(Item <ActiveRecord :: Base)。
Although the validations help, they cannot solve the problem of sanity-checking the content. 尽管验证有所帮助,但它们无法解决检查内容的完整性问题。 For that we would like to have a test mode. 为此,我们希望有一个测试模式。
Could we use a temporary Items table for this with Rails/MySQL, and, if yes, how should we do it? 我们可以使用Rails / MySQL的临时Items表,如果是,我们应该怎么做?
You can use AR Extensions gem for this. 您可以使用AR Extensions gem。 Read this article for more details. 阅读本文了解更多详情。
User.create_temporary_table do | temp_model|
# now perform the inserts on temp table.
temp_model.create(...)
...
end # table dropped automatically
OR 要么
temp_model = User.create_temporary_table
temp_model.create(...)
#do something
...
...
#drop the temp table
temp_model.drop
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