Converting Array to String in a model using before filters

rubyonrails-talk
1

Hi,

    I have a list coming in a field like :selected_lists => [1,2,3,4] from a form     while storing it in a database i need to join this list into a string

   so then in my model class,

2 
I have a list coming in a field like :selected\_lists => \[1,2,3,4\]

from a form

Correction :selected_lists => [1,2,3,4] to ---------> :lists_selected => [1,2,3,4] Regards, Vimal Das

3

----------------------------------------------------------------------------------   so that before saving i call a function to format the array to string and store it using attr_accessor method   I printed the "self.lists_selected" and i got "1,2,3,4" as the result

  I thought this would do my job   I am wondering why 'nil' is stored in the table.   Please help me out off this guys.

Because your attr_accessor overwrote the accessor which saves to a
database column with one that saves to an instance variable

4

So, is there anyother way to carry this out of the box

Regards, Vimal Das

5

Thanks again Fred to make me try this out... I got it after analysing ur reply further

So the trick is not to add a attr_accessor for lists_selected

Regards, Vimal Das

6

Thanks again Fred to make me try this out... I got it after analysing ur reply further

So the trick is not to add a attr_accessor for lists_selected

Regards, Vimal Das