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 | ||
46cea8c8 DC |
68 | (defmethod clear-class-attributes ((model t)) |
69 | (setf (cdr (find-class-attributes model)) nil)) | |
70 | ||
579597e3 | 71 | (defmethod add-attribute ((model t) name def) |
72 | (let ((map (find-class-attributes model))) | |
73 | (setf (cdr map) (acons name def (cdr map))))) | |
74 | ||
75 | (defmethod find-attribute ((model t) name) | |
76 | (assoc name (cdr (find-class-attributes model)))) | |
77 | ||
78 | (defmethod (setf find-attribute) ((def list) (model t) name) | |
79 | (let ((attr (find-attribute model name))) | |
80 | (if attr | |
81 | (prog2 | |
82 | (setf (cdr attr) def) | |
83 | attr) | |
84 | (prog2 | |
85 | (add-attribute model name def) | |
86 | (find-attribute model name))))) | |
87 | ||
88 | (defmethod set-attribute ((model t) name definition &key (inherit t)) | |
89 | (setf (find-attribute model name) | |
90 | (if inherit | |
91 | (cons (car definition) | |
92 | (plist-union (cdr definition) | |
93 | (cddr (find-attribute model name)))) | |
94 | definition))) | |
95 | ||
e8e743d7 | 96 | (defmethod perform-set-attributes ((model t) definitions) |
97 | (dolist (def definitions) | |
98 | (funcall #'set-attribute model (first def) (rest def)))) | |
579597e3 | 99 | |
34e8e2d6 DC |
100 | |
101 | (defmethod set-attribute-properties ((model t) attribute properties) | |
102 | (let ((a (find-attribute model attribute))) | |
103 | (if a | |
104 | (setf (cddr a) (plist-nunion properties (cddr a))) | |
105 | (error "Attribute ~A does not exist" attribute) ))) | |
106 | ||
107 | (defmethod perform-set-attribute-properties ((model t) definitions) | |
108 | (dolist (def definitions) | |
109 | (funcall #'set-attribute-properties model (car def) (cdr def)))) | |
110 | ||
111 | ||
112 | ||
113 | ||
114 | ||
19531fbd | 115 | (defmethod default-attributes ((model t)) |
a6644385 | 116 | "return the default attributes for a given model using the meta-model's meta-data" |
7129498f | 117 | (append (mapcar #'(lambda (s) |
118 | (cons (car s) | |
119 | (gen-pslot | |
1679abef | 120 | (if (meta-model:foreign-key-p model (car s)) |
121 | 'ucw::foreign-key | |
122 | (cadr s)) | |
123 | (string (car s)) (car s)))) | |
124 | (meta-model:list-slot-types model)) | |
125 | (mapcar #'(lambda (s) | |
126 | (cons s (append (gen-pslot 'ucw::has-many (string s) s) | |
127 | `(:presentation | |
128 | (make-presentation | |
129 | ,model | |
130 | :type :one-line))))) | |
19531fbd | 131 | (meta-model:list-has-many model)))) |
132 | ||
133 | (defmethod set-default-attributes ((model t)) | |
46cea8c8 | 134 | (clear-class-attributes model) |
19531fbd | 135 | (mapcar #'(lambda (x) |
136 | (setf (find-attribute model (car x)) (cdr x))) | |
137 | (default-attributes model))) | |
138 | ||
139 | ||
579597e3 | 140 | (defgeneric attributes-getter (model)) |
141 | ||
19531fbd | 142 | ;;;presentations |
143 | ||
144 | ||
145 | ||
146 | ||
579597e3 | 147 | (defcomponent mewa () |
148 | ((attributes | |
149 | :initarg :attributes | |
150 | :accessor attributes | |
151 | :initform nil) | |
152 | (attributes-getter | |
153 | :accessor attributes-getter | |
154 | :initform #'get-attributes | |
155 | :initarg :attributes-getter) | |
156 | (global-properties | |
157 | :initarg :global-properties | |
158 | :accessor global-properties | |
159 | :initform nil) | |
160 | (classes | |
161 | :initarg :classes | |
162 | :accessor classes | |
163 | :initform nil) | |
164 | (use-instance-class-p | |
165 | :initarg :use-instance-class-p | |
166 | :accessor use-instance-class-p | |
167 | :initform t) | |
168 | (initializedp :initform nil) | |
d1bb68e0 | 169 | (modifiedp :accessor modifiedp :initform nil) |
170 | (modifications :accessor modifications :initform nil))) | |
579597e3 | 171 | |
579597e3 | 172 | |
173 | (defmethod attributes :around ((self mewa)) | |
174 | (let ((a (call-next-method))) | |
175 | (or a (funcall (attributes-getter self) self)))) | |
176 | ||
19531fbd | 177 | (defgeneric get-attributes (mewa)) |
178 | ||
579597e3 | 179 | (defmethod get-attributes ((self mewa)) |
180 | (if (instance self) | |
181 | (append (meta-model:list-slots (instance self)) | |
182 | (meta-model:list-has-many (instance self))) | |
183 | nil)) | |
184 | ||
579597e3 | 185 | |
186 | (defmethod find-instance-classes ((self mewa)) | |
187 | (mapcar #'class-name | |
188 | (it.bese.arnesi.mopp:compute-class-precedence-list (class-of (instance self))))) | |
189 | ||
190 | (defmethod find-all-attributes ((self mewa)) | |
191 | (reduce #'append | |
192 | (mapcar #'(lambda (x) | |
193 | (cdr (find-class-attributes x))) | |
194 | (classes self)))) | |
195 | ||
196 | (defun make-attribute (&rest props &key type &allow-other-keys) | |
197 | (remf props :type) | |
198 | (cons (gensym) (cons type props))) | |
199 | ||
200 | ||
201 | (defmethod find-applicable-attributes ((self mewa)) | |
202 | (let ((all-attributes (find-all-attributes self))) | |
203 | (flet ((gen-att (x) (let ((att (assoc x all-attributes))) | |
204 | (when att | |
205 | (setf (cddr att) (plist-union (global-properties self) (cddr att))) | |
206 | att)))) | |
207 | (if (attributes self) | |
208 | (remove 'nil | |
209 | (mapcar #'(lambda (x) | |
210 | (cond | |
211 | ;;simple casee | |
212 | ((symbolp x) | |
213 | (gen-att x)) | |
214 | ;;if the car is a keyword then this is an inline def | |
215 | ((and (listp x) (keywordp (car x))) | |
216 | (let ((att (apply #'make-attribute x))) | |
217 | (setf (cddr att) | |
218 | (plist-union (cddr att) (global-properties self))) | |
219 | att)) | |
220 | ;; if the plist has a :type | |
221 | ((and (listp x) (getf (cdr x) :type)) | |
222 | (let ((new (cdr (apply #'make-attribute (cdr x)))) | |
223 | (def (gen-att (car x)))) | |
224 | (setf (cdr new) (plist-union (cdr new) (cddr def))) | |
225 | (cons (car def) new))) | |
226 | ;;finally if we are just overiding the props | |
227 | ((and (listp x) (symbolp (car x))) | |
228 | (let ((new (cdr (apply #'make-attribute (cdr x)))) | |
229 | (def (gen-att (car x)))) | |
230 | (setf (cdr new) (plist-union (cdr new) (cddr def))) | |
231 | (cons (car def) (cons (second def) (cdr new))))) | |
232 | ||
233 | ) | |
234 | ) | |
235 | ||
236 | (attributes self))) | |
237 | all-attributes)))) | |
238 | ||
239 | (defmethod find-slot-presentations ((self mewa)) | |
240 | (mapcar #'(lambda (s) | |
241 | (let ((class-name (or (gethash (second s) ucw::*slot-type-mapping*) 'mewa-object-presentation))) | |
242 | (apply #'make-instance | |
243 | class-name | |
244 | (append (cddr s) (list :parent self))))) | |
245 | (find-applicable-attributes self))) | |
246 | ||
579597e3 | 247 | |
248 | ||
249 | (defmethod initialize-slots ((self mewa)) | |
250 | (when (use-instance-class-p self) | |
251 | (setf (classes self) | |
252 | (append (find-instance-classes self) | |
253 | (classes self)))) | |
254 | (setf (slots self) (find-slot-presentations self))) | |
255 | ||
256 | ||
579597e3 | 257 | (defmethod make-presentation ((object t) &key (type :viewer) (initargs nil)) |
258 | (let* ((p (make-instance 'mewa-object-presentation)) | |
259 | (a (progn (setf (slot-value p 'instance) object) | |
260 | (initialize-slots p) | |
261 | (assoc type (find-all-attributes p)))) | |
262 | ||
263 | (i (apply #'make-instance (second a) (plist-union initargs (cddr a))))) | |
264 | (setf (slot-value i 'instance) object) | |
265 | i)) | |
266 | ||
19531fbd | 267 | (defmethod make-presentation ((object t) &key (type :viewer) (initargs nil)) |
268 | (let* ((p (make-instance 'mewa-object-presentation)) | |
269 | (a (progn (setf (slot-value p 'instance) object) | |
270 | (initialize-slots p) | |
271 | (assoc type (find-all-attributes p)))) | |
272 | ||
273 | (i (apply #'make-instance (or (second a) | |
274 | ;; if we didnt find the type, | |
275 | ;; use the symbol as a class. | |
276 | (if (eql (symbol-package type) | |
277 | (find-package 'keyword)) | |
278 | (symbol-name type) | |
279 | type)) | |
280 | (plist-union initargs (cddr a))))) | |
281 | (setf (slot-value i 'instance) object) | |
2acd3ba2 | 282 | (initialize-slots i) |
283 | (setf (slot-value i 'initializedp) t) | |
19531fbd | 284 | i)) |
285 | ||
286 | ||
287 | ||
288 | ||
289 | ||
579597e3 | 290 | (defmethod call-component :before ((from standard-component) (to mewa)) |
291 | (unless (slot-value to 'initializedp) | |
292 | (initialize-slots to)) | |
293 | (setf (slot-value to 'initializedp) t) | |
294 | (setf (slots to) (mapcar #'(lambda (x) (prog2 | |
295 | (setf (component.place x) (component.place from)) | |
296 | x)) | |
9d6c69fb | 297 | (slots to)))) |
579597e3 | 298 | |
299 | (defmacro call-presentation (object &rest args) | |
ae09804a | 300 | `(present-object ,object :presentation (make-presentation ,object ,@args))) |
301 | ||
4e2ecf69 DC |
302 | |
303 | (defcomponent about-dialog (option-dialog) | |
304 | ((body :initarg :body))) | |
305 | ||
306 | (defmethod render-on ((res response) (self about-dialog)) | |
307 | (render-on res (slot-value self 'body)) | |
308 | (call-next-method)) | |
309 | ||
ae09804a | 310 | (defaction cancel-save-instance ((self mewa)) |
1679abef | 311 | (cond |
312 | ((slot-value (instance self) 'clsql-sys::view-database) | |
313 | (meta-model::update-instance-from-records (instance self)) | |
314 | (answer self)) | |
315 | (t (answer nil)))) | |
ae09804a | 316 | |
317 | (defaction save-instance ((self mewa)) | |
7129498f | 318 | (meta-model:sync-instance (instance self)) |
ae09804a | 319 | (setf (modifiedp self) nil) |
320 | (answer self)) | |
321 | ||
322 | ||
12dcf3d4 | 323 | (defaction ensure-instance-sync ((self mewa)) |
ae09804a | 324 | (when (modifiedp self) |
325 | (let ((message (format nil "Record has been modified, Do you wish to save the changes?<br/> ~a" (print (modifications self))))) | |
4e2ecf69 DC |
326 | (case (call 'about-dialog |
327 | :body (make-presentation (instance self) | |
328 | :type :viewer) | |
ae09804a | 329 | :message message |
330 | :options '((:save . "Save changes to Database") | |
331 | (:cancel . "Cancel all changes"))) | |
332 | (:cancel | |
333 | (cancel-save-instance self)) | |
334 | (:save | |
12dcf3d4 | 335 | (save-instance self)))))) |
ae09804a | 336 | |
e8e743d7 | 337 | (defaction ok ((self mewa) &optional arg) |
338 | "Returns the component if it has not been modified. if it has been, prompt user to save or cancel" | |
339 | (declare (ignore arg)) | |
340 | (ensure-instance-sync self) | |
341 | (answer self)) | |
342 | ||
343 | ||
344 | ||
ae09804a | 345 | |
346 | ||
347 | (defmethod (setf presentation-slot-value) :around (value (slot slot-presentation) instance) | |
348 | (let* ((old (prog1 | |
349 | (presentation-slot-value slot instance) | |
350 | (call-next-method))) | |
351 | (new (presentation-slot-value slot instance))) | |
352 | ||
353 | (unless (equal new old ) | |
354 | (let ((self (ucw::parent slot))) | |
355 | (setf (modifiedp self) instance | |
4e2ecf69 | 356 | (modifications self) (append (list new old value slot instance) (modifications self))))))) |
233380f7 | 357 | |
358 | ||
359 | ;; This software is Copyright (c) Drew Crampsie, 2004-2005. | |
360 | ;; You are granted the rights to distribute | |
361 | ;; and use this software as governed by the terms | |
362 | ;; of the Lisp Lesser GNU Public License | |
363 | ;; (http://opensource.franz.com/preamble.html), | |
364 | ;; known as the LLGPL. |