Re: rake db:migrate does nothing

Ambrose
Fri, 06 Jul 2007 22:07:22 -0000

Hi Rob

Thanks for the reply. Here is my migrate directory listing:

001_add_sessions.rb
002_create_admins.rb
003_create_users.rb
004_create_resumes.rb
005_create_cvs.rb

It didn''t apply migration 004 so I tried another migration 005 and
that didn''t apply wither. I rolled back to 002 and then migrated again
and it redid 003 but once again did not apply 004 or 005.

I am pretty sure there is something odd going on as in the past I have
created a new rails project and run the same migrations creating the
same tables and it works fine.

Cheers

Ambrose

On Jul 6, 2:54 pm, Rob Biedenharn
<R...-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org>
wrote:
> show us a listing of your db/migrate directory.  If you have the same
> class defined in more than one migration file (typically matching the
> CamelCased part of the filename after then number), then your
> migrations go haywire.  One way around this is to use very long,
> descriptive names for your migrations.
>
> -Rob
>
> Rob Biedenharn          http://agileconsultingllc.com
> R...-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org
>
> On Jul 6, 2007, at 5:34 PM,Ambrosewrote:
>
> > Anyone else have any suggestions?
>
> > Thanks
>
> >Ambrose
>
> > On Jul 4, 7:31
pm,Ambrose<ambrose.merr...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> >> Hi Cory - nope, they are not tables I have already created - they
> >> definitely don''t exist before or after the migration :-(
>
> >> I just don''t get it. I''ll use the same code when
I start a new
> >> project
> >> and it will work for a while.
>
> >> Very frustrating.
>
> >> On Jul 4, 2:15 pm, CPerry
<c...-jEJZ73ctDLTqlBn2x/YWAg@public.gmane.org> wrote:
>
> >>> Be sure that you have not already created these tables before.
If
> >>> you
> >>> have you will need to force the migration to work like so....
>
> >>> create_table :resumes force => true do |t|
>
> >>> This will allow the migration to overwrite the original table,
> >>> assuming that you have already previously created it.
>
> >>> --Cory
>
> >>> On Jul 4, 4:09
pm,Ambrose<ambrose.merr...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>
> >>>> In the migrate directory I have got to 005. The foirst 3
> >>>> moigrations
> >>>> worked but migration 004 and 005 did not.
>
> >>>> I just rolled back to version=2 and then ran rake
db:migrate
> >>>> again and
> >>>> it created the table for 003 but once again did not create
the
> >>>> tables
> >>>> for 004 or 005. No errors just did not do anything for 004
and 005.
>
> >>>> Very strange.
>
> >>>> On Jul 4, 1:06 pm, Niels Meersschaert
<nmeersscha...-ee4meeAH724@public.gmane.org>
> >>>> wrote:
>
> >>>>> What does the new migration you just created say is
the migration
> >>>>> number?
> >>>>> How did you create the migration?  The convention is
migrations
> >>>>> are
> >>>>> named 003NameOfMigraton where 003 refers to the
migration number.
>
> >>>>> Niels
>
> >>>>> Sent from my iPhone
>
> >>>>> On Jul 4, 2007, at 4:00
PM,Ambrose<ambrose.merr...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
> >>>>> wrote:
>
> >>>>>> Thanks Niels
>
> >>>>>> I tried creating a new migration but once again it
didn''t fail
> >>>>>> but
> >>>>>> also did not create the table.
>
> >>>>>> The schema says I am on version 3 though I have
tried 2 more
> >>>>>> migrations that have not happened. If I roll back
now I will
> >>>>>> roll back
> >>>>>> to version 2 and lose a table with some test data.
No big deal I
> >>>>>> guess.
>
> >>>>>> Is it your expectation that I will then be able to
successfully
> >>>>>> perform migrations once again? I''ll try
and see.
>
> >>>>>> Thanks
>
> >>>>>>Ambrose
>
> >>>>>> On Jul 4, 12:53 pm, Niels Meersschaert
<nmeersscha...-ee4meeAH724@public.gmane.org>
> >>>>>> wrote:
> >>>>>>> You need to either create a new migration or
roll back to the
> >>>>>>> migration before the one you are editing. If
you look in your
> >>>>>>> db you
> >>>>>>> will see a table called schema info. This has
a single row
> >>>>>>> with a
> >>>>>>> column showing the version of your migration.
>
> >>>>>>> If you are still developing it is fine to edit
the migration,
> >>>>>>> bit if
> >>>>>>> you are in production the rollback could
remove data so the
> >>>>>>> safest
> >>>>>>> approach is to generate a new migration.
>
> >>>>>>> Niels
>
> >>>>>>> Sent from my iPhone
>
> >>>>>>> On Jul 4, 2007, at 3:21
> >>>>>>>
PM,Ambrose<ambrose.merr...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
> >>>>>>> wrote:
>
> >>>>>>>> Very strange.
>
> >>>>>>>> I have created a couple of models, edited
the migration
> >>>>>>>> files and
> >>>>>>>> run
> >>>>>>>> rake db:migrate and voila, the new table
is created.
>
> >>>>>>>> Now I come to create a 3rd model, edit the
migration file:
>
> >>>>>>>> class CreateResumes <
ActiveRecord::Migration
> >>>>>>>> def self.up
> >>>>>>>>   create_table :resumes do |t|
> >>>>>>>>     # t.column :name, :string
> >>>>>>>>     t.column :institution, :string
> >>>>>>>>     t.column :user_id, :integer
>
> >>>>>>>>   end
> >>>>>>>> end
>
> >>>>>>>> def self.down
> >>>>>>>>   drop_table :resumes
> >>>>>>>> end
> >>>>>>>> end
>
> >>>>>>>> and run rake db:migrate and it
doesn''t fail it just does
> >>>>>>>> nothing, it
> >>>>>>>> creates no new table.
>
> >>>>>>>> C:\work\1hh-b>rake db:migrate -t
> >>>>>>>> (in C:/work/1hh-b)
> >>>>>>>> ** Invoke db:migrate (first_time)
> >>>>>>>> ** Invoke environment (first_time)
> >>>>>>>> ** Execute environment
> >>>>>>>> ** Execute db:migrate
> >>>>>>>> ** Invoke db:schema:dump (first_time)
> >>>>>>>> ** Invoke environment
> >>>>>>>> ** Execute db:schema:dump
>
> >>>>>>>> C:\work\1hh-b>
>
> >>>>>>>> Other rake commands work fine such as rake
annotate_models.
>
> >>>>>>>> This isn''t the first time this
has happened. It usually happens
> >>>>>>>> after
> >>>>>>>> I have done a few migrations. Because I am
a noob and building
> >>>>>>>> simple
> >>>>>>>> test apps I just start a new project,
copying over what I have
> >>>>>>>> done to
> >>>>>>>> date and rake db:migrate works fine. But
it isn''t a
> >>>>>>>> satisfactory
> >>>>>>>> solution.
>
> >>>>>>>> Any suggestions would be great.
>
> >>>>>>>> Thanks
>
> >>>>>>>>Ambrose