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 (defmethod find-default-attributes ((object t))
  12   "return the default attributes for a given object using the meta-model's meta-data"
  13   (append (mapcar #'(lambda (s)
  14                       (cons (car s)
  15                             (gen-pslot
  16                              (if (meta-model:foreign-key-p object (car s))
  17                                  'foreign-key
  18                                  (cadr s))
  19                              (string (car s)) (car s))))
  20                   (meta-model:list-slot-types object))
  21           (mapcar #'(lambda (s)
  22                       (cons s (append (gen-pslot 'has-many (string s) s)
  23                                       `(:presentation
  24                                         (make-presentation
  25                                          ,object
  26                                          :type :one-line)))))
  27                   (meta-model:list-has-many object))
  28           (find-default-presentation-attribute-definitions)))
  29
  30 (defmethod set-default-attributes ((object t))
  31   "Set the default attributes for MODEL"
  32   (clear-attributes object)
  33   (mapcar #'(lambda (x)
  34               (setf (find-attribute object (car x)) (cdr x)))
  35           (find-default-attributes object)))
  36
  37 ;;;; This automagically initialises any meta model
  38
  39 (eval-when (:compile-toplevel :load-toplevel :execute)
  40   (defmethod meta-model::generate-base-class-expander :after (meta-model name args)
  41     (set-default-attributes name)))
  42
  43 ;;;; The following macros are used to initialise a set of database tables as LoL objects.
  44
  45
  46
  47 (eval-when (:compile-toplevel :load-toplevel :execute)
  48   (defun generate-define-view-for-table (table)
  49     "
  50 Generates a form that, when evaluated, initialises the given table as an lol object.
  51 This involves creating a meta-model, a clsql view-class, and the setting up the default attributes for a mewa presentation"
  52
  53     `(progn
  54       (def-view-class-from-table ,table)
  55       (set-default-attributes (quote ,(meta-model::sql->sym table))))))
  56
  57 (defmacro define-view-for-table (&rest tables)
  58   " expand to a form which initialises TABLES for use with LOL"
  59   `(progn
  60     ,@(loop for tbl in tables collect (generate-define-view-for-table tbl))
  61     (values)))
  62
  63 (defmacro define-views-for-database ()
  64   "expands to init-i-f-t using the listing of tables provided by meta-model"
  65   `(define-view-for-table ,@(meta-model::list-tables)))
  66
  67 (eval-when (:compile-toplevel :load-toplevel :execute)
  68   (defun %make-view (object type attributes args)
  69
  70       (when attributes
  71         (setf args
  72               (cons `(:attributes ,attributes) args)))
  73       `(mewa::make-presentation
  74         ,object
  75         :type ,type
  76         ,@(when args
  77                 `(:initargs
  78                   '(,@ (mapcan #'identity args)))))))
  79
  80 (defmethod make-view (object &rest args &key (type :viewer)
  81                       &allow-other-keys )
  82   (remf args :type)
  83   ;(warn "~A ~A" args `(:type ,type :initargs ,@args))
  84   (apply #'make-presentation object `(:type ,type ,@ (when args
  85                                                        `(:initargs ,args)))))
  86
  87 (defmacro present-view ((object &optional (type :viewer) (parent 'self))
  88                         &body attributes-and-args)
  89   (arnesi:with-unique-names (view)
  90     `(let ((,view (lol::make-view ,object
  91                                  :type ,type
  92                                  ,@(when (car attributes-and-args)
  93                                          `(:attributes ',(car attributes-and-args)))
  94                                  ,@ (cdr attributes-and-args))))
  95       (setf (ucw::parent ,view) ,parent)
  96       (lol::present ,view))))
  97
  98
  99 (defmacro call-view ((object &optional (type :viewer) (component 'self component-supplied-p))
 100                      &body attributes-and-args)
 101   `(ucw:call-component
 102     ,component
 103     ,(%make-view object type (car attributes-and-args) (cdr attributes-and-args))))
 104
 105 (defmethod slot-view ((self mewa) slot-name)
 106   (mewa::find-attribute-slot self slot-name))
 107
 108 (defmethod present-slot-view ((self mewa) slot-name &optional (instance (instance self)))
 109   (let ((v (slot-view self slot-name)))
 110
 111      (if v
 112          (present-slot v instance)
 113          (<:as-html slot-name))))
 114
 115
 116 (defmethod find-slots-of-type (model &key (type 'string)
 117                               (types '((string)) types-supplied-p))
 118   "returns a list of slots matching TYPE, or matching any of TYPES"
 119   (let (ty)
 120     (if types-supplied-p
 121         (setf ty types)
 122         (setf ty (list type)))
 123     (remove nil (mapcar #'(lambda (st) (when (member (second st) ty)
 124                                          (first st)))
 125              (lisp-on-lines::list-slot-types model)))))
 126
 127
 128
 129
 130
 131
 132 (defmethod word-search (class-name slots search-terms
 133                         &key (limit 10) (where (sql-and t)))
 134   (select class-name
 135           :where (sql-and
 136                   where
 137                   (word-search-where class-name slots search-terms :format-string "~a%"))
 138                            :flatp t
 139                            :limit limit))
 140
 141
 142 (defmethod word-search (class-name slots (s string) &rest args)
 143   (apply #'word-search class-name slots (list s) args))
 144
 145 (defmethod word-search-where (class-name slots search-terms &key (format-string "%~a%"))
 146   (sql-or
 147    (mapcar #'(lambda (term)
 148                (apply #'sql-or
 149                       (mapcar #'(lambda (slot)
 150                                   (sql-uplike
 151                                    (sql-slot-value class-name slot)
 152                                    (format nil format-string  term)))
 153                               slots)))
 154            search-terms)))
 155
 156
 157