Habtm additional column

Rails
1

Hi!

In one of my current projects, I have an habtm relationship between two
models. To access the table
via console, I created the model for the join table. so for example, I
have

class Foo
has_and_belongs_to_many :bars, :join_table => ‘foo_bars’

I created a FooBar class so I can actually access the records via AR.
My
question is this, is it fine to
add another column to this table?

2

On Wed, Mar 30, 2011 at 7:24 PM, Jim Ruther N. [email protected]
wrote:

I created a FooBar class so I can actually access the records via AR. My
question is this, is it fine to
add another column to this table?

If you are going to add another column to the FooBar table then you
might as
well change the associations of models Foo and Bar to has_many :foo_bar
and
then put belongs_to :foo belongs_to :bar in your model FooBar. The point
of
the has_and_belongs_to_many is to setup a join table for association
that
you don’t plan on accessing through a model or need additional fields
for.

B.

3

Using HABTM prevents you from using the additional column, but you can
get
the desired effect by replacing HABTM on each side with something like:

class Foo
has_many :foo_bars, :join_table => “foo_bars”
has_many :bars, :through => :foo_bars
end

4

On Thu, Mar 31, 2011 at 1:18 PM, Chris K. [email protected]
wrote:

Using HABTM prevents you from using the additional column, but you can get
the desired effect by replacing HABTM on each side with something like:

I’ve ended up adding a new column to foo_bars which I can access fine
without changing
the current relationships. The problem is with updating a FooBar record
which has no ID column
which rails needs. Since I don’t need an ID column on foo_bars, i just
update the record with
an sql statement.

Cheers!

Hi!
question is this, is it fine to

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