Hi Colin,
I think u r using rails 3.2.x where mass assignment is protected for
saving the record into the db
you need to write this piece of code in model

attr_accessible : field/column name

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On Fri, Jun 8, 2012 at 12:32 PM, Colin Law wrote:
On 7 June 2012 23:08, cyber c. wrote:
Hi,

i added a column to my DB using
rails g migration AddAttrToTablename attr:string
rake db:migrate

I didnt change the model file. Should i?

Now when i create a new record to the table assigning values to existing
attrs and newly added attribute i get this error "Can't mass-assign
protected attributes: attr"

Any1 understand whats happening here?
You probably need to add the new field to the attr_accessible list in
the model.rb file so you can do such things as update_attributes(
params[...]) or new( params[...] )

Colin
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