rails change value of parameter in controller

Question

I have this controller

 def mymethod
  @theparam => (params[:valueoftheparam])
  @theparam => "3"
  callothermethodthatusetheparam
 end

So basically, I have "valueoftheparam" which is "2".
I need to change the value of "2" into "3", and let "callothermethodthatusetheparam" the new param (which is "3")
however, "callothermethodthatusetheparam" in the end still used the old value("2").

How I can change this value in the controller, and let "callothermethodthatusetheparam" to use the new param value?

Thank you!

Fernando Diaz Garrido · Accepted Answer · 2011-02-16 09:46:08Z

15

You have to modify the value directly, the instance variable does not point to the param, it just clones its value

params[:valueoftheparam] = 3

answered Feb 16, 2011 at 9:46

Fernando Diaz Garrido

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Comments

rubyprince · Accepted Answer · 2011-02-16 09:57:34Z

1

If you do like this, I am sure you will get 3 printed (@params will be "3")

def my_method
  @param = (params[:valueoftheparam])
  @param = "3"
  other_method
end


def other_method
  puts @param
end

answered Feb 16, 2011 at 9:57

rubyprince

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2 Comments

Fernando Diaz Garrido Over a year ago

I believe what he wants is getting a 3 when he does puts params[:valueoftheparam] in another method

rubyprince Over a year ago

@fernando I couldnt make it out from the question...then your answer is correct...we have to set params[:valueoftheparam] = "3".

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