Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw
 
PerlMonks  

Re: O-O design, aggregation of objects

by mpeever (Friar)
on Nov 08, 2008 at 03:55 UTC ( #722351=note: print w/ replies, xml ) Need Help??


in reply to O-O design, aggregation of objects

If I call User->new(), should that actually create a database entry?

I'm interested to see what feedback you get. But I assure you, DB writes on object creation is a bad idea. It will lead to a ton of spurious of DB writes, and possibly race conditions. In the very least, creating the objects from the DB will be interesting, as de-serializing those objects from the DB will trigger DB writes...


Comment on Re: O-O design, aggregation of objects
Re^2: O-O design, aggregation of objects
by dsheroh (Parson) on Nov 08, 2008 at 16:28 UTC
    ...except that you can instantiate an object without calling ->new, so the infinite loops you mention are easily avoided.

    I'd still say "no" to save-immediately-on-create because it's likely to result in a number of spurious database records being created. (I don't know about the OP, but I sometimes instantiate temporary objects which have no reason to be stored persistently.)

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://722351]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others perusing the Monastery: (15)
As of 2014-12-18 14:47 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Is guessing a good strategy for surviving in the IT business?





    Results (56 votes), past polls