src/mewa/slot-presentations.lisp

   1 (in-package :it.bese.ucw)
   2
   3 (defun multiple-value-funcall->list (function &rest args)
   4                    (multiple-value-call #'list (apply function args)))
   5
   6 (defmacro multiple-value-bindf (vars form &body body)
   7                    `(destructuring-bind ,vars
   8                      (multiple-value-funcall->list #',(car form) ,@(cdr form))
   9                      ,@body))
  10
  11 (defslot-presentation mewa-boolean-slot-presentation (boolean-slot-presentation)
  12   ((slot-name :accessor slot-name :initarg :slot-name))
  13   (:type-name mewa-boolean))
  14
  15 (defslot-presentation mewa-string-slot-presentation (string-slot-presentation   )
  16
  17   ((slot-name :accessor slot-name :initarg :slot-name))
  18   (:type-name mewa-string))
  19
  20 (defslot-presentation mewa-number-slot-presentation (number-slot-presentation)
  21   ((slot-name :accessor slot-name :initarg :slot-name))
  22   (:type-name mewa-number))
  23
  24 (defslot-presentation mewa-integer-slot-presentation (integer-slot-presentation)
  25   ((slot-name :accessor slot-name :initarg :slot-name))
  26   (:type-name mewa-integer))
  27
  28 (defslot-presentation mewa-currency-slot-presentation (currency-slot-presentation)
  29
  30   ((slot-name :accessor slot-name :initarg :slot-name))
  31   (:type-name mewa-currency))
  32
  33 (defslot-presentation clsql-wall-time-slot-presentation (mewa-relation-slot-presentation)
  34        ()
  35        (:type-name clsql-sys:wall-time))
  36
  37 (defmethod presentation-slot-value ((slot clsql-wall-time-slot-presentation) instance)
  38   (let ((date (call-next-method)))
  39     (when date (multiple-value-bind (y m d) (clsql:time-ymd date)
  40       (format nil "~a/~a/~a" m d y)))))
  41
  42 (defmethod (setf presentation-slot-value) ((value string) (slot clsql-wall-time-slot-presentation) instance)
  43   (let ((new-time (clsql:parse-date-time (remove #\Space value)))
  44         (old-time (when (slot-boundp instance (slot-name slot))
  45                     (slot-value instance (slot-name slot)))))
  46     (unless (or (eql old-time new-time)
  47                 (when (and new-time old-time)
  48                   (equal :equal (clsql:time-compare new-time old-time))))
  49     (setf (presentation-slot-value slot instance) new-time ))))
  50
  51 (defmethod label :around ((slot clsql-wall-time-slot-presentation))
  52   (concatenate 'string (call-next-method) "  (mm/dd/yyyy)"))
  53
  54 (defmethod present-slot ((slot clsql-wall-time-slot-presentation) instance)
  55   (let ((date (presentation-slot-value slot instance))
  56         (input-id (string (gensym))))
  57     (if (and date (not (editablep slot)))
  58         (<:span (<:as-html date)))
  59     (when (editablep slot)
  60       (<ucw:input :accessor (presentation-slot-value slot instance) :id input-id)
  61       (<:script :type "text/javascript"
  62                 (<:as-is (format nil "
  63       Calendar.setup({
  64         inputField     :    \"~a\",
  65         ifFormat       :    \"%m/%d/%Y\",
  66       });" input-id))))))
  67
  68 (defslot-presentation  mewa-relation-slot-presentation ()
  69   ((slot-name :accessor slot-name :initarg :slot-name)
  70    (foreign-instance :accessor foreign-instance)
  71    (linkedp :accessor linkedp :initarg :linkedp :initform t))
  72   (:type-name relation))
  73
  74 (defun get-fkey-data (instance slot-name)
  75   "ugly workaround b/c UCW does not like M-V-B"
  76   (multiple-value-bind (finstance foreign-slot-name)
  77       (meta-model:explode-foreign-key instance slot-name)
  78     (cons finstance foreign-slot-name)))
  79
  80 (defaction search-records ((slot mewa-relation-slot-presentation) instance)
  81   (let* ((d (get-fkey-data instance (slot-name slot)))
  82          (finstance (car d))
  83          (foreign-slot-name (cdr d))
  84          (new-instance
  85     (call-component
  86      (parent slot)
  87      (make-instance (or (cadr (mewa:find-attribute finstance :presentation-search))
  88                         'mewa::mewa-presentation-search)
  89                     :search-presentation
  90                     (mewa:make-presentation finstance
  91                                             :type :search-presentation)
  92                     :list-presentation
  93                     (mewa:make-presentation finstance
  94                                             :type :listing)))))
  95     (setf (slot-value instance (slot-name slot)) (slot-value new-instance foreign-slot-name))
  96     (meta-model:sync-instance instance)))
  97
  98 (defmethod present-relation ((slot mewa-relation-slot-presentation) instance)
  99  ;;;;(<:as-html (slot-name slot) "=> " (foreign-instance slot) " from " instance )
 100   (let* ((i (foreign-instance slot))
 101          (pres (mewa::make-presentation
 102                 i
 103                 :type :one-line
 104                 :initargs (list
 105                            :global-properties
 106                            (list :editablep nil :linkedp nil)))))
 107       (when (and (ucw::parent slot) (slot-boundp slot 'ucw::place))
 108         (setf (component.place pres) (component.place (ucw::parent slot))))
 109       (when i (<ucw:render-component :component pres))))
 110
 111
 112
 113 (defmethod present-slot ((slot mewa-relation-slot-presentation) instance)
 114   (present-relation slot instance))
 115
 116 (defslot-presentation foreign-key-slot-presentation (mewa-relation-slot-presentation)
 117   ()
 118   (:type-name foreign-key)
 119   (:default-initargs))
 120
 121 (defaction view-instance ((self component) instance &rest initargs)
 122   (call-component (parent self) (apply #'mewa:make-presentation instance initargs))
 123   ;; the viewed instance could have been changed/deleted, so we sync this instance
 124   (meta-model:sync-instance (instance (parent self))))
 125
 126
 127 (defmethod  present-slot :around ((slot foreign-key-slot-presentation) instance)
 128   (setf (foreign-instance slot) (when (presentation-slot-value slot instance) (meta-model:explode-foreign-key instance (slot-name slot))))
 129   (flet ((render () (call-next-method)))
 130     (cond
 131       ((editablep slot)
 132        (render)
 133        (<ucw:submit :action  (search-records slot instance) :value "Search" :style "display:inline")
 134        (<ucw:submit :action  (create-record slot instance) :value "Add New" :style "display:inline"))
 135       ((linkedp slot)
 136        (<ucw:a :action (view-instance slot (foreign-instance slot))
 137                (render)))
 138       (t
 139        (render)))))
 140
 141 ;;;; HAS MANY
 142 (defslot-presentation has-many-slot-presentation (mewa-relation-slot-presentation)
 143   ((add-new-label :accessor add-new-label :initarg :add-new-label :initform "Add New"))
 144   (:type-name has-many))
 145
 146
 147 (defaction add-to-has-many ((slot has-many-slot-presentation) instance)
 148   (mewa:ensure-instance-sync (parent slot))
 149   (multiple-value-bindf (class home foreign)
 150       (meta-model:explode-has-many instance (slot-name slot))
 151     (let ((new (make-instance class)))
 152       (setf (slot-value new foreign) (slot-value instance home))
 153       (meta-model:sync-instance new :fill-gaps-only t)
 154       (call-component (parent slot) (mewa:make-presentation new :type :editor))
 155       (meta-model:sync-instance (instance (parent slot))))))
 156
 157 (defmethod present-slot ((slot has-many-slot-presentation) instance)
 158   (<ucw:submit :action (add-to-has-many slot instance) :value (add-new-label slot))
 159   (let ((i (get-foreign-instances slot instance))
 160         (linkedp (linkedp slot)))
 161     (<:ul
 162      (dolist (s i)
 163        (let ((s s))
 164          (setf (foreign-instance slot) s)
 165          (<ucw:a :action (view-instance slot s :initargs `(:global-properties ,(list :linkedp t :editablep nil)))
 166                  (<:li   (setf (linkedp slot) nil)
 167                          (present-relation slot instance))))))))
 168
 169
 170 (defmethod get-foreign-instances ((slot has-many-slot-presentation) instance)
 171   (slot-value instance (slot-name slot)))
 172
 173 (defmethod presentation-slot-value ((slot has-many-slot-presentation) instance)
 174   (get-foreign-instances slot instance))
 175
 176 (defslot-presentation has-very-many-slot-presentation (has-many-slot-presentation)
 177   ((number-to-display :accessor number-to-display :initarg :number-to-display :initform 10)
 178    (current :accessor current :initform 0)
 179    (len :accessor len )
 180    (instances :accessor instances))
 181
 182   (:type-name has-very-many))
 183
 184 (defmethod list-next ((slot has-very-many-slot-presentation))
 185   (setf (current slot) (incf (current slot) (number-to-display slot)))
 186   (when (< (len slot) (current slot))
 187     (setf (current slot) (- (number-to-display slot) (len slot)))))
 188
 189 (defmethod list-prev ((slot has-very-many-slot-presentation))
 190   (setf (current slot) (decf (current slot) (number-to-display slot)))
 191   (when  (> 0 (current slot))
 192     ;;what to do here is open to debate
 193     (setf (current slot) (- (len slot)(number-to-display slot)  ))))
 194
 195
 196 (defmethod present-slot ((slot has-very-many-slot-presentation) instance)
 197   ;;(<:as-html "isance: " instance)
 198   (<ucw:a :action (list-prev slot) (<:as-html "<<"))
 199   (let ((self (parent slot)))
 200     (<ucw:a :action (call-component self (mewa:make-presentation (car (slot-value instance (slot-name slot))) :type :listing :initargs (list :instances (instances slot))))
 201             (<:as-html  (label slot) (format nil " ~a-~a " (current slot) (+ (current slot) (number-to-display slot))))))
 202   (<ucw:a :action (list-next slot) (<:as-html ">>"))
 203   (call-next-method)
 204   (<:as-html "total :" (len slot)))
 205
 206 (defmethod get-foreign-instances :around ((slot has-very-many-slot-presentation) instance)
 207   (let ((f (call-next-method)))
 208     (setf (len slot) (length f))
 209     (setf (instances slot) f)
 210   (loop for cons on (nthcdr (current slot) f)
 211                    for i from 0 upto (number-to-display slot)
 212                    collect (car cons))))
 213
 214 (defslot-presentation has-a-slot-presentation (one-of-presentation)
 215   ((key :initarg :key :accessor key))
 216   (:type-name has-a))
 217
 218 (defmethod get-foreign-slot-value ((slot has-a-slot-presentation) (object t) (slot-name t))
 219   (slot-value object slot-name))
 220
 221 (defmethod present-slot ((slot has-a-slot-presentation) instance)
 222       (<:as-html (presentation-slot-value slot instance))
 223   (if (editablep slot)
 224       (<ucw:select :accessor (presentation-slot-value slot instance) :test #'equalp
 225         (when (allow-nil-p slot)
 226           (<ucw:option :value nil (<:as-html (none-label slot))))
 227         (dolist (option (get-foreign-instances (presentation slot) instance))
 228           (setf (instance (presentation slot)) option)
 229           (<ucw:option :value (get-foreign-slot-value slot option (key slot)) (present (presentation slot)))))
 230       (if (presentation-slot-value slot instance)
 231           (progn
 232             (setf (instance (presentation slot)) (presentation-slot-value slot instance))
 233             (present (presentation slot)))
 234           (<:as-html "--"))))