Dan*_*Tao 2 activerecord ruby-on-rails
假设我想加载一堆Foo记录,但我只想将id和title属性加载到内存中:
foos = Foo.where([condition]).select('id, title')
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如果我想加载所有属性EXCEPT(即因为它是巨型文本列)会怎么样?你知道,像:
foos = Foo.where([condition]).select('* except giant_text_dump')
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显然这不起作用.但有办法吗?
像这样?
Foo.where([condition]).select(*Foo.attribute_names.reject { |attr| attr == 'giant_text_dump' })
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