src/lisp-on-lines.lisp

   1 (in-package :lisp-on-lines)
   2
   3 ;;;; *LoL Entry points
   4 ;;;;
   5
   6 ;;;; This file contains the high level functions and macros
   7 ;;;; that are part of LoL proper, that is to say, not Mewa
   8 ;;;; or Meta-Model.
   9
  10 ;;;; ** Initialisation
  11 ;;;; The following macros are used to initialise a set of database tables as LoL objects.
  12 (eval-when (:compile-toplevel :load-toplevel :execute)
  13   (defun generate-define-view-for-table (table)
  14     "
  15 Generates a form that, when evaluated, initialises the given table as an lol object.
  16 This involves creating a meta-model, a clsql view-class, and the setting up the default attributes for a mewa presentation"
  17
  18     `(progn
  19       (def-view-class-from-table ,table)
  20       (set-default-attributes (quote ,(meta-model::sql->sym table))))))
  21
  22 (defmacro define-view-for-table (&rest tables)
  23   " expand to a form which initialises TABLES for use with LOL"
  24   `(progn
  25     ,@(loop for tbl in tables collect (generate-define-view-for-table tbl))
  26     (values)))
  27
  28 (defmacro define-views-for-database ()
  29   "expands to init-i-f-t using the listing of tables provided by meta-model"
  30   `(define-view-for-table ,@(meta-model::list-tables)))
  31
  32 (eval-when (:compile-toplevel :load-toplevel :execute)
  33   (defun %make-view (object type &rest attributes-and-args)
  34     (let ((attributes (car attributes-and-args))
  35           (args (cdr attributes-and-args)))
  36       `(mewa:make-presentation
  37         ,object
  38         :type ,type
  39         :initargs
  40         '(,@ (when attributes
  41                `(:attributes ,attributes)))
  42         ,@args))))
  43
  44 (defmethod make-view (object &rest args &key (type :viewer) (attributes nil)
  45                       &allow-other-keys )
  46   (apply #'make-presentation (cdr (%make-view object type (cons attributes args)))))
  47
  48 (defmacro present-view ((object &optional (type :viewer))
  49                         &body attributes-and-args)
  50   `(present ,(%make-view object type attributes-and-args)))
  51
  52
  53 (defmacro call-view ((object &optional (type :viewer) (component 'self component-supplied-p))
  54                      &body attributes-and-args)
  55
  56
  57   `(ucw:call-component
  58     ,component
  59     ,(%make-view object type attributes-and-args)))
  60
  61 (defmethod slot-view ((self mewa) slot-name)
  62   (mewa::find-attribute-slot self slot-name))
  63
  64 (defmethod present-slot-view ((self mewa) slot-name &optional (instance (instance self)))
  65   (present-slot (slot-view self slot-name) instance))
  66
  67
  68
  69
  70 (defmethod find-slots-of-type (model &key (type 'string)
  71                               (types '((string)) types-supplied-p))
  72   "returns a list of slots matching TYPE, or matching any of TYPES"
  73   (let (ty)
  74     (if types-supplied-p
  75         (setf ty types)
  76         (setf ty (list type)))
  77     (remove nil (mapcar #'(lambda (st) (when (member (second st) ty)
  78                                          (first st)))
  79              (lisp-on-lines::list-slot-types model)))))
  80
  81
  82 (defmethod word-search (class-name slots search-terms
  83                         &key (limit 10) (where (sql-and t)))
  84   (select class-name
  85           :where (sql-and
  86                   where
  87                   (word-search-where class-name slots search-terms :format-string "~a%"))
  88                            :flatp t
  89                            :limit limit))
  90
  91
  92 (defmethod word-search (class-name slots (s string) &rest args)
  93   (apply #'word-search class-name slots
  94          (split-sequence:split-sequence #\Space s) args))
  95
  96 (defmethod word-search-where (class-name slots search-terms &key (format-string "%~a%"))
  97   (sql-or
  98    (mapcar #'(lambda (term)
  99                (apply #'sql-or
 100                       (mapcar #'(lambda (slot)
 101                                   (sql-uplike
 102                                    (sql-slot-value class-name slot)
 103                                    (format nil format-string  term)))
 104                               slots)))
 105            search-terms)))
 106