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
  13 (eval-when (:compile-toplevel :load-toplevel :execute)
  14   (defun generate-define-view-for-table (table)
  15     "
  16 Generates a form that, when evaluated, initialises the given table as an lol object.
  17 This involves creating a meta-model, a clsql view-class, and the setting up the default attributes for a mewa presentation"
  18
  19     `(progn
  20       (def-view-class-from-table ,table)
  21       (set-default-attributes (quote ,(meta-model::sql->sym table))))))
  22
  23 (defmacro define-view-for-table (&rest tables)
  24   " expand to a form which initialises TABLES for use with LOL"
  25   `(progn
  26     ,@(loop for tbl in tables collect (generate-define-view-for-table tbl))
  27     (values)))
  28
  29 (defmacro define-views-for-database ()
  30   "expands to init-i-f-t using the listing of tables provided by meta-model"
  31   `(define-view-for-table ,@(meta-model::list-tables)))
  32
  33 (eval-when (:compile-toplevel :load-toplevel :execute)
  34   (defun %make-view (object type attributes args)
  35
  36       (when attributes
  37         (setf args
  38               (cons `(:attributes ,attributes) args)))
  39       `(mewa::make-presentation
  40         ,object
  41         :type ,type
  42         ,@(when args
  43                 `(:initargs
  44                   '(,@ (mapcan #'identity args)))))))
  45
  46 (defmethod make-view (object &rest args &key (type :viewer)
  47                       &allow-other-keys )
  48   (remf args :type)
  49   ;(warn "~A ~A" args `(:type ,type :initargs ,@args))
  50   (apply #'make-presentation object `(:type ,type ,@ (when args
  51                                                        `(:initargs ,args)))))
  52
  53 (defmacro present-view ((object &optional (type :viewer) (parent 'self))
  54                         &body attributes-and-args)
  55   (arnesi:with-unique-names (view)
  56     `(let ((,view (lol::make-view ,object
  57                                  :type ,type
  58                                  ,@(when (car attributes-and-args)
  59                                          `(:attributes ',(car attributes-and-args)))
  60                                  ,@ (cdr attributes-and-args))))
  61       (setf (ucw::parent ,view) ,parent)
  62       (lol::present ,view))))
  63
  64
  65 (defmacro call-view ((object &optional (type :viewer) (component 'self component-supplied-p))
  66                      &body attributes-and-args)
  67   `(ucw:call-component
  68     ,component
  69     ,(%make-view object type (car attributes-and-args) (cdr attributes-and-args))))
  70
  71 (defmethod slot-view ((self mewa) slot-name)
  72   (mewa::find-attribute-slot self slot-name))
  73
  74 (defmethod present-slot-view ((self mewa) slot-name &optional (instance (instance self)))
  75   (present-slot (slot-view self slot-name) instance))
  76
  77
  78 (defmethod find-slots-of-type (model &key (type 'string)
  79                               (types '((string)) types-supplied-p))
  80   "returns a list of slots matching TYPE, or matching any of TYPES"
  81   (let (ty)
  82     (if types-supplied-p
  83         (setf ty types)
  84         (setf ty (list type)))
  85     (remove nil (mapcar #'(lambda (st) (when (member (second st) ty)
  86                                          (first st)))
  87              (lisp-on-lines::list-slot-types model)))))
  88
  89
  90
  91
  92
  93
  94 (defmethod word-search (class-name slots search-terms
  95                         &key (limit 10) (where (sql-and t)))
  96   (select class-name
  97           :where (sql-and
  98                   where
  99                   (word-search-where class-name slots search-terms :format-string "~a%"))
 100                            :flatp t
 101                            :limit limit))
 102
 103
 104 (defmethod word-search (class-name slots (s string) &rest args)
 105   (apply #'word-search class-name slots (list s) args))
 106
 107 (defmethod word-search-where (class-name slots search-terms &key (format-string "%~a%"))
 108   (sql-or
 109    (mapcar #'(lambda (term)
 110                (apply #'sql-or
 111                       (mapcar #'(lambda (slot)
 112                                   (sql-uplike
 113                                    (sql-slot-value class-name slot)
 114                                    (format nil format-string  term)))
 115                               slots)))
 116            search-terms)))
 117
 118
 119