Some part of class in ActiveRecord

Rails
1

Hello !

I’ve a question regarding Rails and Active Record.

I’ve a class, for instance “Host” witch is populated with data from a
remote API. I call a specific address and create my object. My object
has a
specific and unique ID.

I would like to add additional data to this object. This data would be
stored in my MySQL database. I want to only store this additional data
in
my database and do the link with my ID.

My idea for a Rails POV is to add an extra parameter in my “Host” class
with something like “host_extra” whitch is an ActiveRecord::Base class
with
my extra data and in my constructor in my Host class I do a
HostExtra.find(id).

What do you think of my solution? A better solution exists to do
something
like that?

Thanks!

Regards,

2

On Wednesday, July 22, 2015 at 10:52:16 AM UTC+1, Julien B. wrote:

stored in my MySQL database. I want to only store this additional data in
like that?

You could certainly have a one to one association between this host
class
and some other table, although it’s not clear to me why you wouldn’t
just
store it in the hosts table (not to say that there can’t be a good
reason
for this, you just haven’t said why you want to do this).

Fred

3

Hello!

Thanks for the update. The problem is that I don’t have a “Host” table.
All
informations regarding the host are from my external API. I just want to
“extend” those information with dedicated data.

Le mercredi 22 juillet 2015 11:57:09 UTC+2, Frederick C. a écrit :

4

On Jul 22, 2015, at 6:05 AM, Julien B. [email protected] wrote:

Hello!

Thanks for the update. The problem is that I don’t have a “Host” table. All
informations regarding the host are from my external API. I just want to “extend”
those information with dedicated data.

Maybe the answer is to cache the API output in a hosts table locally
(and add your extra bits at the same time), and then do either a
scheduled refresh or make a request against the API on each “show” for a
particular host? Then you could update the local cache if there are
changes, and everything (local and API data) would stay in synch.

Walter

5

On Wednesday, July 22, 2015 at 11:05:03 AM UTC+1, Julien B. wrote:

Hello!

Thanks for the update. The problem is that I don’t have a “Host” table.
All informations regarding the host are from my external API. I just want
to “extend” those information with dedicated data.

In that case why not (although as Walter says you might consider
persisting
the API data, although keeping that up to date might be a can of worms
you
don’t want to open).

Fred