Hi Mark, Thanks, yeah latter I saw that.
On Thu, Feb 24, 2011 at 10:54 AM, Mark Kremer <[email protected]>wrote: > You application crashed because you probably have a user of type "student" > but you don't have a matching class for it. As others explained the > migrations and model generations don't use single table inheritance, so they > won't crash on it. Furthermore the generators don't know which types you > want to use in your application, you have to create these manually as new > models > > If you look at the ActiveRecord::Base API documentation ( > http://api.rubyonrails.org/classes/ActiveRecord/Base.html) and scroll down > to the section on "Single Table Inheritance" you'll see what single table > inheritance is about. > > If you want to know more about Rails' API then you can find all of the API > documentation for Rails here: http://api.rubyonrails.org/ > You can also get some valuable information from the Rails Guides too: > http://guides.rubyonrails.org/ > > > On 22-2-2011 7:15, Bhasker Harihara wrote: > > Hi, > > I used "type" as a column in "rails generate model" there was no error. > > I did a rake db:migrate again no problem. > > I created the values using console again no problem. > > I did a show function in users contoller then rails threw up the error. > But should it not give this error right at the time of generate > model or db:migrate or atleast create. > > ActiveRecord::SubclassNotFound in UsersController#show > > The single-table inheritance mechanism failed to locate the subclass: > 'student'. This error is raised because the column 'type' is reserved for > storing the class in case of inheritance. Please rename this column if you > didn't intend it to be used for storing the inheritance class or overwrite > > User.inheritance_column to use another column for that information. > > -- > 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. > > > -- > 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. > -- 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.
