How can I drop and remigrate?
On 21 Feb., 11:31, Jim Ruther Nill <[email protected]> wrote: > could you confirm if the error still exists if you drop your db and > remigrate? > > > > > > > > > > On Mon, Feb 21, 2011 at 5:30 PM, rogi <[email protected]> wrote: > > class Worker < ActiveRecord::Base > > has_many :trainings > > has_many :courses, :through => :trainings > > belongs_to :ressort > > > def firstname_and_name > > first_name+" "+last_name > > end > > end > > > --- > > class Ressort < ActiveRecord::Base > > has_many :workers > > end > > > --- > > > class Course < ActiveRecord::Base > > has_many :trainings > > has_many :workers, :through => :trainings > > end > > > On 20 Feb., 22:46, Colin Law <[email protected]> wrote: > > > On 20 February 2011 16:59, rogi <[email protected]> wrote: > > > > > irb(main):038:0> Ressort.find(1).workers > > > > NoMethodError: undefined method `workers' for #<Ressort:0x3215328> > > > > > irb(main):039:0> Worker.first.ressort > > > > ActiveRecord::StatementInvalid: SQLite3::SQLException: no such column: > > > > ressorts.worker_id: SELECT "ressorts".* FROM "re > > > > ssorts" WHERE ("ressorts".worker_id = 1) LIMIT 1 > > > > Can you paste the contents of ressort.rb and worker.rb? Do not > > > re-type them, copy and paste here please. > > > Also db/schema.rb > > > > Colin > > > > > => Worker(id: integer, first_name: string, last_name: string, > > > > created_at: datetime, updated_at: datetime, ressort_id: in > > > > teger) > > > > > class AddRessortIdToWorkers < ActiveRecord::Migration > > > > def self.up > > > > add_column :workers, :ressort_id, :integer > > > > end > > > > > def self.down > > > > remove_column :workers, :ressort_id > > > > end > > > > end > > > > > class CreateRessorts < ActiveRecord::Migration > > > > def self.up > > > > create_table :ressorts do |t| > > > > t.string :name > > > > t.text :description > > > > > t.timestamps > > > > end > > > > end > > > > > def self.down > > > > drop_table :ressorts > > > > end > > > > end > > > > > On Feb 20, 4:05 pm, Michael Pavling <[email protected]> wrote: > > > >> On 20 February 2011 13:23, rogi <[email protected]> wrote: > > > > >> > No: > > > > >> > ActiveRecord::StatementInvalid: SQLite3::SQLException: no such > > column: > > > >> > ressorts.worker_id: SELECT "ressorts".* FROM "ressorts" WHERE > > > >> > ("ressorts".worker_id = 1) LIMIT 1 > > > > >> What command did you type to get this return value? It's certainly > > > >> weird if you asked for "Worker.first"... (or Worker.all.first) > > > > >> > irb(main):037:0> Ressort > > > >> > => Ressort(id: integer, name: string, description: text, created_at: > > > >> > datetime, updated_at: datetime) > > > > >> ...And what if you display "Worker"? > > > > >> I think your migrations would help too... I really don't think you've > > > >> quite got all the structure in place yet. > > > > > -- > > > > 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 athttp:// > > 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. > > -- > ------------------------------------------------------------- > visit my blog athttp://jimlabs.heroku.com -- 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.
