src/slot-presentations.lisp

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