Commit | Line | Data |
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233380f7 | 1 | |
579597e3 | 2 | (in-package :mewa) |
3 | ||
4 | (defparameter *default-type* :ucw) | |
5 | ||
6 | ;;; maps meta-model slot-types to slot-presentation | |
9d6c69fb DC |
7 | (defparameter *slot-type-map* |
8 | '(boolean ucw::mewa-boolean | |
9 | string ucw::mewa-string | |
10 | number ucw::mewa-currency | |
11 | integer ucw::mewa-integer | |
12 | currency ucw::mewa-currency | |
13 | )) | |
579597e3 | 14 | |
15 | ;;; an alist of model-class-name . attributes | |
16 | ;;; should really be a hash-table. | |
17 | (defvar *attribute-map* (list)) | |
18 | ||
19 | ;;; some utilities for merging plists | |
20 | ||
21 | (defun plist-nunion (new-props plist) | |
d0c40011 | 22 | (loop for cons on new-props by #'cddr |
579597e3 | 23 | do (setf (getf plist (first cons)) (second cons)) |
24 | finally (return plist))) | |
25 | ||
26 | (defun plist-union (new-props plist) | |
27 | "Non-destructive version of plist-nunion" | |
28 | (plist-nunion new-props (copy-list plist))) | |
29 | ||
30 | (defun gen-ptype (type) | |
31 | (or (getf *slot-type-map* type) type)) | |
32 | ||
33 | (defun gen-presentation-slots (instance) | |
34 | (mapcar #'(lambda (x) (gen-pslot (cadr x) | |
35 | (string (car x)) | |
36 | (car x))) | |
9d6c69fb | 37 | (meta-model:list-slot-types instance))) |
579597e3 | 38 | |
39 | ||
40 | (defun gen-pslot (type label slot-name) | |
41 | (copy-list `(,(gen-ptype type) | |
42 | :label ,label | |
43 | :slot-name ,slot-name))) | |
44 | ||
45 | (defun gen-presentation-args (instance args) | |
46 | (declare (ignore instance)) | |
47 | (if args args nil)) | |
48 | ||
49 | ||
50 | (defun find-or-create-attributes (class-name) | |
51 | "return an exisiting class attribute map or create one. | |
52 | ||
53 | A map is a cons of class-name . attributes. | |
54 | attributes is an alist keyed on the attribute nreeame." | |
55 | (or (assoc class-name *attribute-map*) | |
56 | (progn | |
57 | (setf *attribute-map* (acons class-name (list (list)) *attribute-map*)) | |
58 | (assoc class-name *attribute-map*)))) | |
59 | ||
60 | (defgeneric find-class-attributes (class)) | |
61 | ||
62 | (defmethod find-class-attributes ((model t)) | |
63 | (find-or-create-attributes (class-name (class-of model)))) | |
64 | ||
65 | (defmethod find-class-attributes ((model symbol)) | |
66 | (find-or-create-attributes model)) | |
67 | ||
68 | (defmethod add-attribute ((model t) name def) | |
69 | (let ((map (find-class-attributes model))) | |
70 | (setf (cdr map) (acons name def (cdr map))))) | |
71 | ||
72 | (defmethod find-attribute ((model t) name) | |
73 | (assoc name (cdr (find-class-attributes model)))) | |
74 | ||
75 | (defmethod (setf find-attribute) ((def list) (model t) name) | |
76 | (let ((attr (find-attribute model name))) | |
77 | (if attr | |
78 | (prog2 | |
79 | (setf (cdr attr) def) | |
80 | attr) | |
81 | (prog2 | |
82 | (add-attribute model name def) | |
83 | (find-attribute model name))))) | |
84 | ||
85 | (defmethod set-attribute ((model t) name definition &key (inherit t)) | |
86 | (setf (find-attribute model name) | |
87 | (if inherit | |
88 | (cons (car definition) | |
89 | (plist-union (cdr definition) | |
90 | (cddr (find-attribute model name)))) | |
91 | definition))) | |
92 | ||
e8e743d7 | 93 | (defmethod perform-set-attributes ((model t) definitions) |
94 | (dolist (def definitions) | |
95 | (funcall #'set-attribute model (first def) (rest def)))) | |
579597e3 | 96 | |
19531fbd | 97 | (defmethod default-attributes ((model t)) |
a6644385 | 98 | "return the default attributes for a given model using the meta-model's meta-data" |
7129498f | 99 | (append (mapcar #'(lambda (s) |
100 | (cons (car s) | |
101 | (gen-pslot | |
1679abef | 102 | (if (meta-model:foreign-key-p model (car s)) |
103 | 'ucw::foreign-key | |
104 | (cadr s)) | |
105 | (string (car s)) (car s)))) | |
106 | (meta-model:list-slot-types model)) | |
107 | (mapcar #'(lambda (s) | |
108 | (cons s (append (gen-pslot 'ucw::has-many (string s) s) | |
109 | `(:presentation | |
110 | (make-presentation | |
111 | ,model | |
112 | :type :one-line))))) | |
19531fbd | 113 | (meta-model:list-has-many model)))) |
114 | ||
115 | (defmethod set-default-attributes ((model t)) | |
116 | (mapcar #'(lambda (x) | |
117 | (setf (find-attribute model (car x)) (cdr x))) | |
118 | (default-attributes model))) | |
119 | ||
120 | ||
579597e3 | 121 | (defgeneric attributes-getter (model)) |
122 | ||
19531fbd | 123 | ;;;presentations |
124 | ||
125 | ||
126 | ||
127 | ||
579597e3 | 128 | (defcomponent mewa () |
129 | ((attributes | |
130 | :initarg :attributes | |
131 | :accessor attributes | |
132 | :initform nil) | |
133 | (attributes-getter | |
134 | :accessor attributes-getter | |
135 | :initform #'get-attributes | |
136 | :initarg :attributes-getter) | |
137 | (global-properties | |
138 | :initarg :global-properties | |
139 | :accessor global-properties | |
140 | :initform nil) | |
141 | (classes | |
142 | :initarg :classes | |
143 | :accessor classes | |
144 | :initform nil) | |
145 | (use-instance-class-p | |
146 | :initarg :use-instance-class-p | |
147 | :accessor use-instance-class-p | |
148 | :initform t) | |
149 | (initializedp :initform nil) | |
d1bb68e0 | 150 | (modifiedp :accessor modifiedp :initform nil) |
151 | (modifications :accessor modifications :initform nil))) | |
579597e3 | 152 | |
579597e3 | 153 | |
154 | (defmethod attributes :around ((self mewa)) | |
155 | (let ((a (call-next-method))) | |
156 | (or a (funcall (attributes-getter self) self)))) | |
157 | ||
19531fbd | 158 | (defgeneric get-attributes (mewa)) |
159 | ||
579597e3 | 160 | (defmethod get-attributes ((self mewa)) |
161 | (if (instance self) | |
162 | (append (meta-model:list-slots (instance self)) | |
163 | (meta-model:list-has-many (instance self))) | |
164 | nil)) | |
165 | ||
579597e3 | 166 | |
167 | (defmethod find-instance-classes ((self mewa)) | |
168 | (mapcar #'class-name | |
169 | (it.bese.arnesi.mopp:compute-class-precedence-list (class-of (instance self))))) | |
170 | ||
171 | (defmethod find-all-attributes ((self mewa)) | |
172 | (reduce #'append | |
173 | (mapcar #'(lambda (x) | |
174 | (cdr (find-class-attributes x))) | |
175 | (classes self)))) | |
176 | ||
177 | (defun make-attribute (&rest props &key type &allow-other-keys) | |
178 | (remf props :type) | |
179 | (cons (gensym) (cons type props))) | |
180 | ||
181 | ||
182 | (defmethod find-applicable-attributes ((self mewa)) | |
183 | (let ((all-attributes (find-all-attributes self))) | |
184 | (flet ((gen-att (x) (let ((att (assoc x all-attributes))) | |
185 | (when att | |
186 | (setf (cddr att) (plist-union (global-properties self) (cddr att))) | |
187 | att)))) | |
188 | (if (attributes self) | |
189 | (remove 'nil | |
190 | (mapcar #'(lambda (x) | |
191 | (cond | |
192 | ;;simple casee | |
193 | ((symbolp x) | |
194 | (gen-att x)) | |
195 | ;;if the car is a keyword then this is an inline def | |
196 | ((and (listp x) (keywordp (car x))) | |
197 | (let ((att (apply #'make-attribute x))) | |
198 | (setf (cddr att) | |
199 | (plist-union (cddr att) (global-properties self))) | |
200 | att)) | |
201 | ;; if the plist has a :type | |
202 | ((and (listp x) (getf (cdr x) :type)) | |
203 | (let ((new (cdr (apply #'make-attribute (cdr x)))) | |
204 | (def (gen-att (car x)))) | |
205 | (setf (cdr new) (plist-union (cdr new) (cddr def))) | |
206 | (cons (car def) new))) | |
207 | ;;finally if we are just overiding the props | |
208 | ((and (listp x) (symbolp (car x))) | |
209 | (let ((new (cdr (apply #'make-attribute (cdr x)))) | |
210 | (def (gen-att (car x)))) | |
211 | (setf (cdr new) (plist-union (cdr new) (cddr def))) | |
212 | (cons (car def) (cons (second def) (cdr new))))) | |
213 | ||
214 | ) | |
215 | ) | |
216 | ||
217 | (attributes self))) | |
218 | all-attributes)))) | |
219 | ||
220 | (defmethod find-slot-presentations ((self mewa)) | |
221 | (mapcar #'(lambda (s) | |
222 | (let ((class-name (or (gethash (second s) ucw::*slot-type-mapping*) 'mewa-object-presentation))) | |
223 | (apply #'make-instance | |
224 | class-name | |
225 | (append (cddr s) (list :parent self))))) | |
226 | (find-applicable-attributes self))) | |
227 | ||
579597e3 | 228 | |
229 | ||
230 | (defmethod initialize-slots ((self mewa)) | |
231 | (when (use-instance-class-p self) | |
232 | (setf (classes self) | |
233 | (append (find-instance-classes self) | |
234 | (classes self)))) | |
235 | (setf (slots self) (find-slot-presentations self))) | |
236 | ||
237 | ||
579597e3 | 238 | (defmethod make-presentation ((object t) &key (type :viewer) (initargs nil)) |
239 | (let* ((p (make-instance 'mewa-object-presentation)) | |
240 | (a (progn (setf (slot-value p 'instance) object) | |
241 | (initialize-slots p) | |
242 | (assoc type (find-all-attributes p)))) | |
243 | ||
244 | (i (apply #'make-instance (second a) (plist-union initargs (cddr a))))) | |
245 | (setf (slot-value i 'instance) object) | |
246 | i)) | |
247 | ||
19531fbd | 248 | (defmethod make-presentation ((object t) &key (type :viewer) (initargs nil)) |
249 | (let* ((p (make-instance 'mewa-object-presentation)) | |
250 | (a (progn (setf (slot-value p 'instance) object) | |
251 | (initialize-slots p) | |
252 | (assoc type (find-all-attributes p)))) | |
253 | ||
254 | (i (apply #'make-instance (or (second a) | |
255 | ;; if we didnt find the type, | |
256 | ;; use the symbol as a class. | |
257 | (if (eql (symbol-package type) | |
258 | (find-package 'keyword)) | |
259 | (symbol-name type) | |
260 | type)) | |
261 | (plist-union initargs (cddr a))))) | |
262 | (setf (slot-value i 'instance) object) | |
2acd3ba2 | 263 | (initialize-slots i) |
264 | (setf (slot-value i 'initializedp) t) | |
19531fbd | 265 | i)) |
266 | ||
267 | ||
268 | ||
269 | ||
270 | ||
579597e3 | 271 | (defmethod call-component :before ((from standard-component) (to mewa)) |
272 | (unless (slot-value to 'initializedp) | |
273 | (initialize-slots to)) | |
274 | (setf (slot-value to 'initializedp) t) | |
275 | (setf (slots to) (mapcar #'(lambda (x) (prog2 | |
276 | (setf (component.place x) (component.place from)) | |
277 | x)) | |
9d6c69fb | 278 | (slots to)))) |
579597e3 | 279 | |
280 | (defmacro call-presentation (object &rest args) | |
ae09804a | 281 | `(present-object ,object :presentation (make-presentation ,object ,@args))) |
282 | ||
ae09804a | 283 | (defaction cancel-save-instance ((self mewa)) |
1679abef | 284 | (cond |
285 | ((slot-value (instance self) 'clsql-sys::view-database) | |
286 | (meta-model::update-instance-from-records (instance self)) | |
287 | (answer self)) | |
288 | (t (answer nil)))) | |
ae09804a | 289 | |
290 | (defaction save-instance ((self mewa)) | |
7129498f | 291 | (meta-model:sync-instance (instance self)) |
ae09804a | 292 | (setf (modifiedp self) nil) |
293 | (answer self)) | |
294 | ||
295 | ||
12dcf3d4 | 296 | (defaction ensure-instance-sync ((self mewa)) |
ae09804a | 297 | (when (modifiedp self) |
298 | (let ((message (format nil "Record has been modified, Do you wish to save the changes?<br/> ~a" (print (modifications self))))) | |
299 | (case (call 'option-dialog | |
300 | :message message | |
301 | :options '((:save . "Save changes to Database") | |
302 | (:cancel . "Cancel all changes"))) | |
303 | (:cancel | |
304 | (cancel-save-instance self)) | |
305 | (:save | |
12dcf3d4 | 306 | (save-instance self)))))) |
ae09804a | 307 | |
e8e743d7 | 308 | (defaction ok ((self mewa) &optional arg) |
309 | "Returns the component if it has not been modified. if it has been, prompt user to save or cancel" | |
310 | (declare (ignore arg)) | |
311 | (ensure-instance-sync self) | |
312 | (answer self)) | |
313 | ||
314 | ||
315 | ||
ae09804a | 316 | |
317 | ||
318 | (defmethod (setf presentation-slot-value) :around (value (slot slot-presentation) instance) | |
319 | (let* ((old (prog1 | |
320 | (presentation-slot-value slot instance) | |
321 | (call-next-method))) | |
322 | (new (presentation-slot-value slot instance))) | |
323 | ||
324 | (unless (equal new old ) | |
325 | (let ((self (ucw::parent slot))) | |
326 | (setf (modifiedp self) instance | |
233380f7 | 327 | (modifications self) (append (list (type-of new) (type-of old) (type-of value) slot instance ))))))) |
328 | ||
329 | ||
330 | ;; This software is Copyright (c) Drew Crampsie, 2004-2005. | |
331 | ;; You are granted the rights to distribute | |
332 | ;; and use this software as governed by the terms | |
333 | ;; of the Lisp Lesser GNU Public License | |
334 | ;; (http://opensource.franz.com/preamble.html), | |
335 | ;; known as the LLGPL. |