sql - What's the best way to sanitize destroy_all - Rails -


i have following controller in rails:

class foocontroller < applicationcontroller     def delete_foo(bar):         foo.destroy_all("foo = '#{@bar}'")

is 

foo.destroy_all("foo = ?", @bar)

always valid?

destroy_all works on relation. why not do

 foo.where(foo: bar).destroy_all

-

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