Check what migrations need to be done inside ruby script

Rails
1

Hi all

I have a feature in a small app that creates the migration files needed
from a small GUI

it executes the rake task command to generate the migration files from
inside a ruby script

so I need to get a simple way to know what files havent been processed
in the current migration compared to the db schema

e.g. inside the db/migrate I count the files with something like

Dir.glob(“db/migrate/*”).size

then I get the current db version info with

%x{rake.bat db:version}.split(’ ').last.to_i

then I compare the two values so that I can automatically execute from a
controller

%x{rake.bat db:migrate} #windows fix to add the .bat

Is there an easier way to do this?

Thanks
Art

2
Arthur R. wrote: 
Hi all

I have a feature in a small app that creates the migration files needed

from a small GUI


it executes the rake task command to generate the migration files from

inside a ruby script


so I need to get a simple way to know what files havent been processed

in the current migration compared to the db schema


e.g. inside the db/migrate I count the files with something like


Dir.glob(“db/migrate/*”).size


then I get the current db version info with


%x{rake.bat db:version}.split(’ ').last.to_i


then I compare the two values so that I can automatically execute from a

controller


%x{rake.bat db:migrate} #windows fix to add the .bat


Is there an easier way to do this?


Thanks

Art
Why not just do the migration and let rails figure out what needs to be done. You are duplicating what rake db:migrate does.Â

Norm

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