postmodernity

2017-01-24

postmodernity

Postmodernity is a utility library for the Common Lisp Postmodern library.

Postmodernity provides the DEFPGSTRUCT macro to define a Common Lisp structure and corresponding Postmodern row reader. DEFPGSTRUCT is not intended to provide a structure-based alternative to Postmodern's data access objects but, rather, an alternative to list and alist row readers.

Based on the structure name, DEFPGSTRUCT also creates keyword symbols and adds them to POSTMODERN::*RESULT-STYLES* so that they can be used as result format arguments to POSTMODERN:QUERY, POSTMODERN:PREPARE, POSTMODERN:DEFPREPARED, and POSTMODERN:DEFPREPARED-WITH-NAMES. Note that, in doing so, DEFPGSTRUCT accesses unexported symbols from the POSTMODERN package.

Postmodernity depends on Postmodern and Alexandria. Postmodernity is being developed with SBCL, CCL, and LispWorks on OS X. Postmodernity is being deployed with SBCL on Linux/AMD64.

Installation

(ql:quickload "postmodernity")

Example

(postmodernity:defpgstruct site
  no
  name
  address
  (age #'(lambda (string)
           (ignore-errors (parse-integer string
                                         :junk-allowed t)))))

(postmodern:defprepared-with-names select-site (no)
  ((:select 'no 'name 'address 'age :from 'site :where (:= 'no '$1))
   no)
  :site)

(postmodern:defprepared-with-names select-site! (no)
  ((:select 'no 'name 'address 'age :from 'site :where (:= 'no '$1))
   no)
  :site!)

(postmodern:defprepared select-all-sites
  (:select 'no 'name 'address 'age :from 'site)
  :sites)

License

Postmodernity is distributed under the MIT license. See LICENSE.

Author
Michael J. Forster <mike@forsterfamily.ca>
License
MIT