importing data from existing Ruby On Rails Project

Question

I have just started learning Ruby On Rails. I am setting up an existing Rails project to my local machine. i hope all the process till yet are ok but i dont get how to import the table data from the existing project also i dont know where the data is stored in Rails? i have a db/development.sqlite3 file i have ran 'rake db:schema:load' and 'rake db:migrate' but i guess these commands have just set up the database structure, but not the data insert. It will be a great if anyone can help me this in easiest way along with telling me few fundamentals

Answer 1

Your question can be answered in two ways, depending on what data you have already:

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rake db:seed

Like rake db:migrate, db:seed basically takes what's in your db/seeds.rb & applies to your database. The contents of seeds.db is just simple ActiveRecord:

Model.create({attr: value, attr: value})

If you have "raw" data you'll like to include, you should open your seeds.rb file, populate with ActiveRecord commands (like above), and then run rake db:seed to get it onto the server

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DB Porting

If you have data in another stack, you'll have to "port" (I think?) the data. There is no "Rails way" to do this, as everyone's stack / db is different

The process will basically be to create the right tables in both databases with rake db:migrate, download the relevant data from your old stack, and then upload to your new one