For a has_and_belongs_to_many association there has to be a migration (but there is no model!). Rails does not automatically create tables for you. If you are still in development, just drop your database and migrate again: rake db:migrate:reset
On Sat, Sep 22, 2012 at 12:06 PM, Fahim Patel <pafa...@gmail.com> wrote: > > Actually i have raise same question yesterday, but no buddy response . > Today i raise new topic and u response.. > I will explain now > I am using has_and_belong_to_many association . This association will > create third table automatically as per my > knowledge, and by chance i have deleted that table from mysql. > Now i wish to get that table but as i know there is no migration file is > created when we use this type of Association. > And i dont want to create migration because than i am not following the > rails rules. > And if i create migration than what is use of has_and_belongs_**to_many > association. > > Refer my Yesterday question for better explaintion... > Hope u will understood now. > > > I have two models cow and milkman. > I am using has_and_belongs_to_many in both models . > By mistake i have deleted cows_milkmans table from database. > > When i use this command i am getting error > a = Cow.last > a.milkmans # when i fire this command then i am getting error that > cows_milkmans table not exist > > As per my knowledge has_and_belongs_**to_many will create third table > automatically , no migration is needed. > > How can get that table ? > > On Friday, September 21, 2012 4:49:58 PM UTC+5:30, Fahim Patel wrote: >> >> Hi all >> >> As we all know that rake db:test:prepare effects all the changes from >> development database to test database. >> But due to one mistake i wish to make development database same as my >> test database. >> >> So how can i get effects from test database to development database ? >> >> >> -- > 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 rubyonrails-talk@googlegroups.com. > To unsubscribe from this group, send email to > rubyonrails-talk+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msg/rubyonrails-talk/-/_EK15DE3gEAJ. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- 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 rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
