Can I use set rails and getter for attributes for db columns

Question

In rails, we can access the db column through the provided attribute rails, but can we change this? for example, I have db with a column with a name, I can implement something like.

def name
  "sir" + name
end

I tried, but this leads to a stack overflow. There is a way to do this.

more questions if there is a difference between the name and self.name.

Answer 1

def name
  "sir" + read_attribute(:name)
end

But avoid this practice. Instead, use an optional getter / setter, also known as a "virtual attribute". Read this answer for more information: attribute decoration in rails

. . 3

"sir sir sir name"

,

def name
  n = read_attribute(:name)
  if /^sir/.match(name)
    n
  else
    "sir #{n}"
  end
end

, , .

Answer 2

, , :

def name
  "sir" + self[:name]
end

Answer 3

Use super

Ruby Override Methods

It has a lot of explanations, but I think it's as simple as calling a method that I already defined

def name
  "sir #{super}"
end