ohhh, thanks. Things make sense now when I look at my object state in debug & see the strings..
On Thu, Nov 27, 2008 at 8:15 PM, Frederick Cheung <[EMAIL PROTECTED]> wrote: > > > > On Nov 27, 7:54 am, "Greg Hauptmann" <[EMAIL PROTECTED]> > wrote: >> thanks - I'll have a look at the code - so would it be correct to say >> then that the Rails framework does effectively cast the params strings >> to their type prior to any saves to the data? (i.e. its not like it >> leave this up to the database to do itself is it, i.e. like if there >> was a date it doesn't just pass the string representation of the data >> through to the database to store in it's Date field) > > Actually it doesn't (minor exception in that a blank string is turned > into nil for numbers). typecasting happens in read_attribute (check > the source for read/write_attribute. > > > Fred >> >> On Thu, Nov 27, 2008 at 5:31 PM, Frederick Cheung >> >> <[EMAIL PROTECTED]> wrote: >> >> > On Nov 26, 9:43 pm, "Greg Hauptmann" <[EMAIL PROTECTED]> >> > wrote: >> >> Hi, >> >> >> When/where does Rails convert "params" used to populate a model object >> >> from a form, into their correct types in the model object??? (i.e. >> >> from "string") What part of rails does this? >> >> > Well it's the call to column.typecast here: >> >http://github.com/rails/rails/tree/2-2-stable/activerecord/lib/active... >> > Which is defined here: >> >http://github.com/rails/rails/tree/2-2-stable/activerecord/lib/active... >> >> > (but possibly overriden by individual connection adapters). >> >> > How that interacts with BaseWithoutTable I have no idea. >> >> > Fred >> >> I have a form upload and in my create method where I go >> >> :@graph_options = GraphOptions.new(params[:graph_options])" it is not >> >> doing the type conversion, as the attributes remain as strings. >> >> >> Note I am using BaseWithoutTable >> >> >> ------------------ >> >> class GraphOptions < ActiveRecord::BaseWithoutTable >> >> column :label_title, :string >> >> column :start_date, :date >> >> column :end_date, :date >> >> column :granularity, :integer >> >> column :chart_type, :integer >> >> . >> >> . >> >> . >> >> ------------------ >> >> >> thanks > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
