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