Rails model validators break earlier migrations -

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i have sequence of migrations in rails app includes following steps:

  1. create basic version of 'user' model
  2. create instance of model - there needs @ least 1 initial user in system can log in , start using it
  3. update 'user' model add new field / column.

now i'm using "validates_inclusion_of" on new field/column. worked fine on initial development machine, had database these migrations applied. however, if go fresh machine , run migrations, step 2 fails, because validates_inclusion_of fails, because field migration 3 hasn't been added model class yet.

as workaround, can comment out "validates_..." line, run migrations, , uncomment it, that's not nice.

better re-order migrations user creation (step 2) comes last, after columns have been added.

i'm rails newbie though, thought i'd ask preferred way handle situation :)

the easiest way avoid issue use rake db:schema:load on second machine, instead of db:migrate. d:s:l uses schema.rb load current version of schema, opposed migrating form scratch.

if run issue when deploying production machine (where preserving data important), you'll have consolidate migrations single file without conflicts.


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