Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
873 views
in Technique[技术] by (71.8m points)

ruby on rails - generate activerecord schema from an existing table

Does anyone know of a way to do this?

I have an existing table that I created with sql and I would like to create a schema from it that would reproduce the table (minus the data)

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)
  1. Edit config/database.rb to point to the database you want copied.
  2. rake db:schema:dump
  3. Create a blank migration
  4. Copy the relevant create_table lines from the schema dump and paste it into the migration file
  5. Manually insert the migration timestamp into schema_migrations table (this applies to existing setup only as it already has the relevant table)

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...