How to create a table using ActiveRecord alone

Ruby
1

Hi all,

I know I can create a table by running MySql first. I search some
tutorials on google but they all talk about creating a table using
MySql-like database then use ActiveRecord to connect them. I wonder if
it is possible to create a table with ActiveRecord only.

Thanks,

Li

2

On Sep 11, 2008, at 5:07 PM, Li Chen wrote:

–
Posted via http://www.ruby-forum.com/.

You could use migrations. But thats just another way of describing the
table.

If you want another approach (defining a model and then letting the
abstraction
layer create the required database), you could use datamapper
instead1.

Then, you class will look like this:

1 class Post
2 include DataMapper::Resource
3 property :id, Integer, :serial => true
4 property :title, String
5 property :subtitle, String :lazy => [:show]
6 property :body, Text :lazy => [:show]
7 property :views, Integer, :lazy => [:show]
8 property :summary, Text
9 end

#and

Post.auto_migrate!

will create/migrate your table automatically.

Regards,
Florian

3

Florian G. wrote:

If you want another approach (defining a model and then letting the
abstraction
layer create the required database), you could use datamapper
instead1.

Then, you class will look like this:

I visit the wetsite: http://www.datamapper.org. It says it is not good
under window system. I wonder how good it is under Vista.