March 2009 - postmodern-devel - mailman3.common-lisp.net

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by Lucas Hope 16 Mar '09

16 Mar '09

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[postmodern-devel] Bug when redefining a class.
by Lucas Hope 11 Mar '09

11 Mar '09

Hi again, The following triggers an incorrect error for me. Not a major bug since the third case provides a workaround. (defclass FOO () ((bar :col-type real)) (:metaclass dao-class) (:keys baz)) (dao-table-definition 'foo) ;; correct error. ;; redefine: (defclass FOO () ((bar :col-type real)) (:metaclass dao-class)) ;; incorrect error! ;; redefine: (defclass FOO () ((bar :col-type real)) (:metaclass dao-class) (:keys bar)) ;; works, then can run the second defclass successfully. -Luke

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[postmodern-devel] Can't redefine slots as columns - why?
by Lucas Hope 10 Mar '09

10 Mar '09

Hi there, I am just getting my feet wet with postmodern. It looks like I will be doing some heavy development with it for the next couple of weeks. Wish me luck! My (first?) issue is that I want to do something similar to the following example code. Here CIRCLE is an in-memory implementation of a circle, and it is desired to create a DAO object which moves storage to a postgres backend. (We have lots of circles...) Pretend CIRCLE has a host of useful functionality attached and I can't just point all the defmethods to DAO-CIRCLE. (defclass SHAPE () ()) (defclass CIRCLE (SHAPE) (radius)) (defclass DAO-CIRCLE (CIRCLE) ((radius :col-type real)) (:metaclass dao-class)) (dao-table-definition 'dao-circle) => ERROR: Slot RADIUS in class #<DAO-CLASS DAO-CIRCLE> is both a column slot and a regular slot. Why doesn't this work, and how can I make it work? It seems like this is useful functionality to have. I want the DAO-CIRCLE's radius to be a column slot. Cheers, -Luke

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[postmodern-devel] Release 1.14
by Marijn Haverbeke 08 Mar '09

08 Mar '09

I've released 1.14. No major changes, but there was some small stuff sitting in the repo, and the half-year-old date of the last release made the project page look a bit dead ;). http://common-lisp.net/project/postmodern/postmodern-1.14.tgz Best, Marijn

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