On Fri, 2010-03-12 at 21:34 -0800, RichardOnRails wrote:
> Hi Craig,
>
> Thanks for responding.
>
> sql.db
> There doesn't appear to be such a critter in my project, although it
> was created with script/scaffold
>
> db\schema.db
> create_table "expenses", :force => true do |t|
> [snip]
> t.integer "amount", :limit => 10, :precision => 10, :scale =>
> 0
>
> But just before I logged in right now, the fundamental cause of my
> problem struck me:
> When I declared expense:decimal in the scaffold, I didn't
> declare :scale=>10, :precision=>2, which is what I want. So there's a
> new question, I think:
> - Can I declare successive migrations where I drop column and then add
> column, or
> - can I just add those attributes to the column?
>
> I don't care about the any data in there at the moment: it's all toy
> data for testing.
>
> I look forward to your additional thoughts.
----
1 - When I said SQL DB, I meant the actual SQL Database that you are
using. i.e. MySQL, SQLite, PostgreSQL, etc. Do you know how to look at
your database?
2 - Get familiar with Rails API...
http://api.rubyonrails.org/
It has answers to so many things that you can look up for reference
and in this case, you probably want to find ActiveRecord::Migrations and
you will find that yes, you can drop/add columns and you can change
columns via migrations.
Craig
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