src/slot-presentations.lisp

   1 (declaim (optimize (speed 0) (space 3) (safety 0)))
   2 (in-package :lisp-on-lines)
   3
   4
   5 ;;;; I dont think i'm using these anymore.
   6 (defun multiple-value-funcall->list (function &rest args)
   7   "The function to be called by m-v-bf"
   8                    (multiple-value-call #'list (apply function args)))
   9
  10 (defmacro multiple-value-bindf (vars form &body body)
  11   "Like M-V-B, only it works in actions. form must be a function call"
  12                    `(destructuring-bind ,vars
  13                      (multiple-value-funcall->list #',(car form) ,@(cdr form))
  14                      ,@body))
  15
  16
  17 ;;;; ** Textarea Slot Presentation
  18
  19 (defslot-presentation text-slot-presentation ()
  20   ((rows :initarg :rows :accessor rows :initform 5)
  21    (columns :initarg :columns :accessor columns :initform 40)
  22    (escape-html-p :initarg :escape-html-p :accessor escape-html-p :initform nil)
  23    (convert-newlines-p :initarg :convert-newlines-p :accessor convert-newlines-p :initform nil))
  24   (:type-name text))
  25
  26 (defmethod present-slot ((slot text-slot-presentation) instance)
  27   (flet ((maybe-convert-newline-and-escape-html-then-print ()
  28            (let ((string (if (convert-newlines-p slot)
  29                              (with-output-to-string (new-string)
  30                                (with-input-from-string
  31                                    (s (presentation-slot-value slot instance))
  32                                  (loop for line = (read-line s nil)
  33                                        while line
  34                                        do (format new-string "~A~A" line "<br/>"))))
  35                              (presentation-slot-value slot instance))))
  36              (if (escape-html-p slot)
  37                  (<:as-html string)
  38                  (<:as-is string)))))
  39
  40     (if (editablep slot)
  41         (<ucw:textarea
  42          :accessor (presentation-slot-value slot instance)
  43          :reader (or (presentation-slot-value slot instance)
  44                  "")
  45          :rows (rows slot)
  46          :cols (columns slot))
  47         (when (presentation-slot-value slot instance)
  48           (maybe-convert-newline-and-escape-html-then-print)))))
  49
  50
  51 (defcomponent mewa-slot-presentation ()
  52   ((validate-functions :accessor validate-functions :initform (list (constantly t)))
  53    (slot-name :accessor slot-name
  54               :initarg :slot-name
  55               :documentation
  56               "The name of the slot being accessed")
  57    (fill-gaps-only-p :accessor fill-gaps-only-p
  58                      :initarg :fill-gaps-only-p
  59                      :initform nil
  60                      :documentation
  61                      "When nil, the instance is syncronised with the database.
  62 When T, only the default value for primary keys and the joins are updated.")
  63    (show-label-p :accessor show-label-p :initarg :show-label-p :initform t)
  64    (creatablep :accessor creatablep :initarg :creatablep :initform t))
  65   (:documentation "The superclass of all Mewa slot presentations"))
  66
  67
  68
  69 ;;;; this has to be in the eval when i would think
  70 (eval-when (:compile-toplevel :load-toplevel :execute)
  71   (defun generate-slot-presentation-definition-for-type (type)
  72     (let* ((u-name (intern (format nil "~A-SLOT-PRESENTATION" type)))
  73            (sp-name (intern (format nil "MEWA-~A" u-name)))
  74            (t-name (intern (format nil "MEWA-~A" type))))
  75       `(defslot-presentation ,sp-name (,u-name mewa-slot-presentation)
  76         ()
  77         (:type-name ,t-name)))))
  78
  79 (defmacro define-base-mewa-presentations (&body types)
  80   "Define the mewa-slot-presentations by subclassing the base UCW ones"
  81     `(progn ,@(mapcar #'generate-slot-presentation-definition-for-type
  82                       types)))
  83
  84 ;;;then actually define the base presentations :
  85 (define-base-mewa-presentations
  86   boolean
  87   string
  88   number
  89   integer
  90   currency)
  91
  92 (defslot-presentation clsql-wall-time-slot-presentation (mewa-relation-slot-presentation)
  93        ((input-id :accessor input-id :initform (arnesi:random-string 10 arnesi:+ascii-alphabet+))
  94         (trigger-id :accessor trigger-id :initform (arnesi:random-string 10 arnesi:+ascii-alphabet+))
  95         (default-to-now-p :accessor default-to-now-p :initarg :default-to-now-p :initform nil))
  96        (:type-name clsql-sys:wall-time))
  97
  98 (defmethod presentation-slot-value ((slot clsql-wall-time-slot-presentation) instance)
  99   (let ((date (call-next-method)))
 100     (when date (multiple-value-bind (y m d) (clsql:time-ymd date)
 101       (format nil "~a/~a/~a" m d y)))))
 102
 103 (defmethod (setf presentation-slot-value) ((value string) (slot clsql-wall-time-slot-presentation) instance)
 104   (let ((new-time (clsql:parse-date-time (remove #\Space value)))
 105         (old-time (when (slot-boundp instance (slot-name slot))
 106                     (slot-value instance (slot-name slot)))))
 107     (unless (or (eql old-time new-time)
 108                 (when (and new-time old-time)
 109                   (equal :equal (clsql:time-compare new-time old-time))))
 110     (setf (presentation-slot-value slot instance) new-time))))
 111
 112 (defmethod label :around ((slot clsql-wall-time-slot-presentation))
 113   (concatenate 'string (call-next-method) "  (m/d/y)"))
 114
 115 (defmethod present-slot ((slot clsql-wall-time-slot-presentation) instance)
 116   (let ((date (presentation-slot-value slot instance)))
 117     ;; Default values
 118     (when (and (not date) (default-to-now-p slot))
 119       (setf (presentation-slot-value slot instance) (clsql:get-time)))
 120     ;;simple viewer
 121     (if (and date (not (editablep slot)))
 122         (<:as-html date))
 123     ;; editor
 124     (when (editablep slot)
 125       (<ucw:input :accessor (presentation-slot-value slot instance) :id (input-id slot) :style "display:inline")
 126       (<:button :id (trigger-id slot) (<:as-html "[...]"))
 127       (<:script :type "text/javascript"
 128                 (<:as-is (format nil "
 129
 130 Calendar.setup({
 131  inputField     :    \"~a\",
 132  button         :    \"~a\",
 133  ifFormat       :    \"%m/%d/%Y\" });" (input-id slot) (trigger-id slot)))))))
 134
 135 (defslot-presentation  mewa-relation-slot-presentation (mewa-slot-presentation slot-presentation)
 136   ((foreign-instance :accessor foreign-instance)
 137    (linkedp :accessor linkedp :initarg :linkedp :initform t)
 138    (creator :accessor creator :initarg :creator :initform :editor)
 139    (new-instance :accessor new-instance :initform nil))
 140   (:type-name relation))
 141
 142 (defaction search-records ((slot mewa-relation-slot-presentation) instance)
 143   (multiple-value-bindf (finstance foreign-slot-name)
 144       (meta-model:explode-foreign-key instance (slot-name slot))
 145     (let ((new-instance (new-instance self)))
 146       (unless new-instance
 147         (setf (new-instance self)
 148               (call-component
 149                (ucw::parent slot)
 150                (make-instance (or (cadr (mewa:find-attribute finstance :presentation-search))
 151                                   'mewa::mewa-presentation-search)
 152                               :search-presentation
 153                               (mewa:make-presentation finstance
 154                                                       :type :search-presentation)
 155                               :list-presentation
 156                               (mewa:make-presentation finstance
 157                                                       :type :listing)))))
 158       (sync-foreign-instance slot new-instance))))
 159
 160 (defmethod sync-foreign-instance ((slot mewa-relation-slot-presentation) foreign-instance)
 161   (let ((instance (instance (ucw::parent slot))))
 162     (multiple-value-bind (foo f-slot-name)
 163         (meta-model:explode-foreign-key instance (slot-name slot))
 164       (setf (slot-value instance (slot-name slot)) (slot-value foreign-instance f-slot-name))
 165       (meta-model:sync-instance instance :fill-gaps-only-p (fill-gaps-only-p slot)))))
 166
 167
 168 (defaction create-record-on-foreign-key ((slot mewa-relation-slot-presentation) instance)
 169   (multiple-value-bindf (finstance foreign-slot-name)
 170       (meta-model:explode-foreign-key instance (slot-name slot))
 171     (let ((new-instance
 172            (call-component
 173             (ucw::parent slot)
 174             (mewa:make-presentation finstance :type (creator self)))))
 175
 176       ;;;; TODO: this next bit is due to a bad design decision.
 177       ;;;; Components should always have (ok) return self, but somewhere
 178       ;;;; i've made in return (instance self) sometimes, and this
 179       ;;;; bahaviour is totatlly fucked.
 180
 181      (when (typep new-instance 'mewa::mewa)
 182        (setf new-instance (instance new-instance)))
 183
 184       ;;;; sorry about that, and now back t our regular program.
 185
 186       (meta-model:sync-instance new-instance)
 187       (setf (slot-value instance (slot-name slot)) (slot-value new-instance foreign-slot-name))
 188       (meta-model:sync-instance instance :fill-gaps-only-p (fill-gaps-only-p self)))))
 189
 190
 191 (defmethod present-relation ((slot mewa-relation-slot-presentation) instance)
 192  ;;;;(<:as-html (slot-name slot) "=> " (foreign-instance slot) " from " instance )
 193   (let* ((i (foreign-instance slot))
 194          (pres (mewa::make-presentation
 195                 i
 196                 :type :one-line
 197                 :initargs (list
 198                            :global-properties
 199                            (list :editablep nil :linkedp nil)))))
 200       (when (and (ucw::parent slot) (slot-boundp slot 'ucw::place))
 201         (setf (component.place pres) (component.place (ucw::parent slot))))
 202       (when i (<ucw:render-component :component pres))))
 203
 204 (defmethod present-slot ((slot mewa-relation-slot-presentation) instance)
 205   (present-relation slot instance))
 206
 207 (defslot-presentation foreign-key-slot-presentation (mewa-relation-slot-presentation)
 208   ()
 209   (:type-name foreign-key)
 210   (:default-initargs))
 211
 212 (defaction view-instance ((self component) instance &rest initargs)
 213   (call-component (ucw::parent self) (apply #'mewa:make-presentation instance initargs))
 214   ;; the viewed instance could have been changed/deleted, so we sync this instance
 215   (meta-model:sync-instance (instance (ucw::parent self))))
 216
 217
 218 (defmethod  present-slot :around ((slot foreign-key-slot-presentation) instance)
 219   (setf (foreign-instance slot)
 220         (when (presentation-slot-value slot instance)
 221           (meta-model:explode-foreign-key instance (slot-name slot))))
 222   (flet ((render () (when (foreign-instance slot)(call-next-method))))
 223     (if (slot-boundp slot 'ucw::place)
 224         (cond
 225           ((editablep slot)
 226            (render)
 227            (<ucw:submit :action  (search-records slot instance) :value "Search" :style "display:inline")
 228            (<ucw:submit :action  (create-record-on-foreign-key slot instance) :value "Add New" :style "display:inline"))
 229           ((linkedp slot)
 230            (<ucw:a :action (view-instance slot (foreign-instance slot))
 231                    (render)))
 232           (t
 233            (render)))
 234         ;; presentation is used only for rendering
 235         (render))))
 236
 237
 238 (defmethod find-foreign-instances ((slot foreign-key-slot-presentation))
 239   (clsql:select (class-name (class-of (meta-model:explode-foreign-key (instance slot) (slot-name slot))))))
 240
 241
 242
 243 ;;;; HAS MANY
 244 (defslot-presentation has-many-slot-presentation (mewa-relation-slot-presentation)
 245   ((add-new-label :accessor add-new-label :initarg :add-new-label :initform "Add New"))
 246   (:type-name has-many))
 247
 248 (defaction add-to-has-many ((slot has-many-slot-presentation) instance)
 249   ;; if the instance is not stored we must make sure to mark it stored now!
 250   (unless (meta-model::persistentp instance)
 251     (setf (mewa::modifiedp (ucw::parent self)) t))
 252   ;; sync up the instance
 253   ;;(mewa:ensure-instance-sync (parent slot))
 254   (meta-model:sync-instance (instance (ucw::parent slot)))
 255
 256   (multiple-value-bindf (class home foreign)
 257       (meta-model:explode-has-many instance (slot-name slot))
 258     (let ((new (make-instance class)))
 259       (setf (slot-value new foreign) (slot-value instance home))
 260       (meta-model:sync-instance new :fill-gaps-only-p (fill-gaps-only-p self))
 261       (call-component (ucw::parent slot)  (mewa:make-presentation new :type (creator slot)))
 262       (meta-model:sync-instance instance))))
 263
 264 (defmethod present-slot ((slot has-many-slot-presentation) instance)
 265   (when (slot-boundp slot 'ucw::place)
 266     (<ucw:submit :action (add-to-has-many slot instance) :value (add-new-label slot)))
 267   (let* ((i (get-foreign-instances slot instance))
 268          (presentation (and i (make-presentation (car  i) :type :one-line))))
 269     (when i
 270       (flet ((linker (i string)
 271                (<ucw:a
 272                 :action (view-instance slot i
 273                                        :initargs
 274                                        `(:global-properties ,
 275                                          (list
 276                                           :linkedp t
 277                                           :editablep nil)))
 278                 (<:as-html string))))
 279         (<:table :cellpadding 10
 280          (<:tr
 281           (<:th)                        ;empty col for (view) link
 282           (dolist (s (slots presentation))
 283             (<:th (<:as-html  (label s)))))
 284          (dolist (s i)
 285            (let ((s s))
 286              (setf (foreign-instance slot) s)
 287              (when (slot-boundp slot 'ucw::place)
 288                (<:tr
 289                 (<:td (linker s " (view) "))
 290                 (dolist (p (slots (make-presentation s :type :one-line
 291                                                      :initargs
 292                                                      '(:global-properties
 293                                                        (:editablep nil)))))
 294                   (<:td
 295
 296                    (present-slot p s))))))))))))
 297
 298
 299 (defmethod get-foreign-instances ((slot has-many-slot-presentation) instance)
 300   (slot-value instance (slot-name slot)))
 301
 302 (defmethod presentation-slot-value ((slot has-many-slot-presentation) instance)
 303   (get-foreign-instances slot instance))
 304
 305 (defslot-presentation has-very-many-slot-presentation (has-many-slot-presentation)
 306   ((number-to-display :accessor number-to-display :initarg :number-to-display :initform 10)
 307    (current :accessor current :initform 0)
 308    (len :accessor len )
 309    (instances :accessor instances))
 310   (:type-name has-very-many))
 311
 312 (defmethod list-next ((slot has-very-many-slot-presentation))
 313   (setf (current slot) (incf (current slot) (number-to-display slot)))
 314   (when (< (len slot) (current slot))
 315     (setf (current slot) (- (number-to-display slot) (len slot)))))
 316
 317 (defmethod list-prev ((slot has-very-many-slot-presentation))
 318   (setf (current slot) (decf (current slot) (number-to-display slot)))
 319   (when  (> 0 (current slot))
 320     ;;what to do here is open to debate
 321     (setf (current slot) (- (len slot)(number-to-display slot)  ))))
 322
 323
 324 (defmethod present-slot ((slot has-very-many-slot-presentation) instance)
 325   ;;(<:as-html "isance: " instance)
 326   (if (slot-boundp slot 'ucw::place)
 327       (progn
 328         (<ucw:a :action (list-prev slot) (<:as-html "<<"))
 329         (let ((self (ucw::parent slot)))
 330           (<ucw:a :action (call-component self (mewa:make-presentation (car (slot-value instance (slot-name slot))) :type :listing :initargs (list :instances (instances slot))))
 331                 (<:as-html  (label slot) (format nil " ~a-~a " (current slot) (+ (current slot) (number-to-display slot))))))
 332         (<ucw:a :action (list-next slot) (<:as-html ">>"))
 333         (call-next-method)
 334         (<:as-html "total :" (len slot)))
 335       (call-next-method)))
 336
 337 (defmethod get-foreign-instances :around ((slot has-very-many-slot-presentation) instance)
 338   (let ((f (call-next-method)))
 339     (setf (len slot) (length f))
 340     (setf (instances slot) f)
 341   (loop for cons on (nthcdr (current slot) f)
 342                    for i from 0 upto (number-to-display slot)
 343                    collect (car cons))))
 344
 345
 346 ;;;; * Has-a
 347 (defslot-presentation has-a-slot-presentation (mewa-relation-slot-presentation)
 348   ((allow-nil-p :accessor allow-nil-p :initarg :allow-nil-p :initform t)
 349    (attributes :accessor attributes :initarg :attributes :initform nil))
 350   (:type-name has-a))
 351
 352 (defmethod find-foreign-slot-value ((slot has-a-slot-presentation) (object t))
 353   (multiple-value-bind (c s)
 354       (meta-model:explode-foreign-key (instance (ucw::parent slot)) (slot-name slot))
 355     (slot-value object s)))
 356
 357 (defmethod get-foreign-instances ((slot mewa-relation-slot-presentation) instance)
 358   (clsql:select (class-name (class-of
 359                              (meta-model:explode-foreign-key instance (slot-name slot))))
 360                 :flatp t))
 361
 362 (defmethod present-slot ((slot has-a-slot-presentation) instance)
 363 ;      (<:as-html (presentation-slot-value slot instance))
 364   (if (editablep slot)
 365       (progn (<ucw:select :accessor (presentation-slot-value slot instance) :test #'equalp
 366         (when (allow-nil-p slot)
 367           (<ucw:option :value nil (<:as-html "none")))
 368         (dolist (option (get-foreign-instances slot instance))
 369           (<ucw:option :value (find-foreign-slot-value slot option)
 370                        (lol:present
 371                         (lol:make-presentation option
 372                            :type :as-string
 373                            :initargs
 374                            `(:attributes ,(attributes slot)))
 375                         ))))
 376              (when (creatablep slot)
 377                (<ucw:submit :action  (create-record-on-foreign-key slot instance) :value "Add New" :style "display:inline")))
 378       (if (presentation-slot-value slot instance)
 379           (progn
 380            (lol:present
 381             (lol:make-presentation (meta-model:explode-foreign-key instance (slot-name slot))
 382                            :type :one-line
 383                            :initargs
 384                            `(:attributes ,(attributes slot)))
 385                            ))
 386            (<:as-html "--"))))
 387
 388 (defslot-presentation many-to-many-slot-presentation (mewa-relation-slot-presentation)
 389   ((list-view :accessor list-view :initarg :list-view :initform :one-line)
 390    (action-view :accessor action-view :initarg :action-view :initform :viewer)
 391    (create-view :initform :creator)
 392    (select-view :initform :as-string :accessor select-view))
 393   (:type-name many-to-many)
 394   (:default-initargs :label "many to many"))
 395
 396 (defun %delete-item (item)
 397   (clsql:with-default-database (clsql:*default-database*)
 398     (ignore-errors
 399     (clsql:delete-instance-records item))))
 400
 401 (defaction delete-item ((self component) instance)
 402   (multiple-value-bind (res err) (%delete-item instance)
 403   (if (not err)
 404       (call 'info-message :message "Removed Instance")
 405       (call 'info-message :message (format nil "Could not remove item. Try removing associated items first. ~A" instance)))))
 406
 407 (defaction delete-relationship ((slot many-to-many-slot-presentation) rel instance)
 408   (delete-item (ucw::parent self) rel)
 409   (sync-instance instance)
 410   (answer-component (ucw::parent self)   t))
 411
 412
 413 (defun find-many-to-many-join-class (slot instance)
 414   (let* ((imd (getf (meta-model::find-slot-metadata instance (slot-name slot))
 415                     :db-info))
 416          (jc (make-instance (getf imd :join-class)))
 417          (jcmd (getf (meta-model::find-slot-metadata jc (getf imd :target-slot))
 418                      :db-info)))
 419     (getf jcmd :join-class)))
 420
 421 (defmethod find-all-instances ((slot many-to-many-slot-presentation) instance)
 422   (clsql:select (find-many-to-many-join-class slot instance) :flatp t))
 423
 424 (defmethod present-slot ((slot many-to-many-slot-presentation) instance)
 425   (let ((instances (slot-value instance (slot-name slot)))
 426         new-instance)
 427     (<:ul
 428      (<:li (<ucw:button :action (add-to-many-to-many slot instance)
 429                          (<:as-html "Add New")))
 430      (<:li  (<ucw:button :action (add-to-many-to-many slot instance new-instance)
 431                          (<:as-html "Add:"))
 432             (<ucw:select :accessor new-instance
 433                          (arnesi:dolist* (i (find-all-instances slot instance))
 434                            (<ucw:option
 435                             :value i
 436                             (lol:present-view (i (select-view slot) slot))))))
 437      (dolist* (i instances)
 438        (<:li
 439         (<ucw:a :action (call-view ((car i) (action-view slot) (ucw::parent slot)))
 440                 (<:as-html "(view) "))
 441         (<ucw:a :action (delete-relationship slot (second i) instance)
 442                 (<:as-html "(remove) "))
 443         (present-view ((car i) (list-view slot) (ucw::parent slot)))) ))))
 444
 445
 446 (defaction add-to-many-to-many ((slot many-to-many-slot-presentation) instance &optional foreign-instance)
 447   ;;;; First things first, we sync.
 448   (sync-instance instance)
 449   (let* (new
 450          (imd (getf (meta-model::find-slot-metadata instance (slot-name slot))
 451                     :db-info))
 452          (jc (make-instance (getf imd :join-class)))
 453          (jcmd (getf (meta-model::find-slot-metadata jc (getf imd :target-slot))
 454                      :db-info))
 455          (fc (make-instance (getf jcmd :join-class)))
 456          (c (if
 457              foreign-instance
 458              foreign-instance
 459              (call-view (fc :creator (ucw::parent slot))))))
 460     (when c
 461       (sync-instance c)
 462 ;      (error "~A ~A ~A" (getf imd :foreign-key) (getf jcmd :foreign-key) (getf imd :home-key))
 463       (setf (slot-value jc (getf imd :foreign-key))
 464             (slot-value instance (getf imd :home-key)))
 465       (setf (slot-value jc (getf jcmd :home-key))
 466             (slot-value c (getf jcmd :foreign-key)))
 467       (sync-instance jc)
 468
 469       (sync-instance instance)
 470       c)))