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) (setf (component.place pres) (component.place (ucw::parent slot))))
  86       (flet ((render () (when i (<ucw:render-component :component pres))))
  87       (cond
  88         ((editablep slot)
  89          (render)
  90          (<ucw:a :action (search-records slot instance) (<:as-html " (search)"))
  91          (<ucw:a :action (create-record slot i) (<:as-html " (new)")))
  92         ((linkedp slot)
  93          (<ucw:a :action (view-instance slot i)
  94                  (render)))
  95         (t
  96          (render))))))
  97
  98
  99
 100 (defmethod present-slot ((slot mewa-relation-slot-presentation) instance)
 101   (present-relation slot instance))
 102
 103 (defslot-presentation foreign-key-slot-presentation (mewa-relation-slot-presentation)
 104   ()
 105   (:type-name foreign-key)
 106   (:default-initargs))
 107
 108 (defaction view-instance ((self component) instance &rest initargs)
 109   (call-component (parent self) (apply #'mewa:make-presentation instance initargs)))
 110
 111 (defmethod  present-slot :before ((slot foreign-key-slot-presentation) instance)
 112   (setf (foreign-instance slot) (meta-model:explode-foreign-key instance (slot-name slot))))
 113
 114 ;;;; HAS MANY
 115 (defslot-presentation has-many-slot-presentation (mewa-relation-slot-presentation)
 116   ()
 117   (:type-name has-many))
 118
 119 (defmethod present-slot ((slot has-many-slot-presentation) instance)
 120   (let ((i (get-foreign-instances slot instance))
 121         (linkedp (linkedp slot)))
 122   (<:ul
 123    (dolist (s i)
 124      (let ((s s))
 125      (setf (foreign-instance slot) s)
 126      (<ucw:a :action (view-instance slot s :initargs `(:global-properties ,(list :linkedp t :editablep nil)))
 127      (<:li   (setf (linkedp slot) nil)
 128              (present-relation slot instance))))))))
 129
 130
 131 (defmethod get-foreign-instances ((slot has-many-slot-presentation) instance)
 132   (slot-value instance (slot-name slot)))
 133
 134 (defslot-presentation has-very-many-slot-presentation (has-many-slot-presentation)
 135   ((number-to-display :accessor number-to-display :initarg :number-to-display :initform 10)
 136    (current :accessor current :initform 0)
 137    (len :accessor len )
 138    (instances :accessor instances))
 139
 140   (:type-name has-very-many))
 141
 142 (defmethod list-next ((slot has-very-many-slot-presentation))
 143   (setf (current slot) (incf (current slot) (number-to-display slot)))
 144   (when (< (len slot) (current slot))
 145     (setf (current slot) (- (number-to-display slot) (len slot)))))
 146
 147 (defmethod list-prev ((slot has-very-many-slot-presentation))
 148   (setf (current slot) (decf (current slot) (number-to-display slot)))
 149   (when  (> 0 (current slot))
 150     ;;what to do here is open to debate
 151     (setf (current slot) (- (len slot)(number-to-display slot)  ))))
 152
 153
 154 (defmethod present-slot ((slot has-very-many-slot-presentation) instance)
 155   ;;(<:as-html "isance: " instance)
 156   (<ucw:a :action (list-prev slot) (<:as-html "<<"))
 157   (let ((self (parent slot)))
 158     (<ucw:a :action (call-component self (mewa:make-presentation (car (slot-value instance (slot-name slot))) :type :listing :initargs (list :instances (instances slot))))
 159             (<:as-html  (label slot) (format nil " ~a-~a " (current slot) (+ (current slot) (number-to-display slot))))))
 160   (<ucw:a :action (list-next slot) (<:as-html ">>"))
 161   (call-next-method)
 162   (<:as-html "total :" (len slot)))
 163
 164 (defmethod get-foreign-instances :around ((slot has-very-many-slot-presentation) instance)
 165   (let ((f (call-next-method)))
 166     (setf (len slot) (length f))
 167     (setf (instances slot) f)
 168   (loop for cons on (nthcdr (current slot) f)
 169                    for i from 0 upto (number-to-display slot)
 170                    collect (car cons))))
 171
 172 (defslot-presentation has-a-slot-presentation (one-of-presentation)
 173   ((key :initarg :key :accessor key))
 174   (:type-name has-a))
 175
 176 (defmethod get-foreign-slot-value ((slot has-a-slot-presentation) (object t) (slot-name t))
 177   (slot-value object slot-name))
 178
 179 (defmethod present-slot ((slot has-a-slot-presentation) instance)
 180       (<:as-html (presentation-slot-value slot instance))
 181   (if (editablep slot)
 182       (<ucw:select :accessor (presentation-slot-value slot instance) :test #'equalp
 183         (when (allow-nil-p slot)
 184           (<ucw:option :value nil (<:as-html (none-label slot))))
 185         (dolist (option (get-foreign-instances (presentation slot) instance))
 186           (setf (instance (presentation slot)) option)
 187           (<ucw:option :value (get-foreign-slot-value slot option (key slot)) (present (presentation slot)))))
 188       (if (presentation-slot-value slot instance)
 189           (progn
 190             (setf (instance (presentation slot)) (presentation-slot-value slot instance))
 191             (present (presentation slot)))
 192           (<:as-html "--"))))