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Question

Ruby on Rails中的语法是什么？这是我正在尝试做的事情:

我试图从表格中找到所有姓氏,这些名字以egm开头like %egm%.我知道如何使用find_by_sql,但只是好奇地了解Ruby方式.

s = Person.find_by_last_name('nan%')

Answer 1

Person.where('name LIKE ?', '%egm%').all

Answer 2

l_name_var = "nan"
Person.where("people.last_name LIKE :l_name", {:l_name => "#{l_name_var}%"})

或者在你的情况下

l_name_var = "egm"
Person.where("people.last_name LIKE :l_name", {:l_name => "%#{l_name_var}%"})