src/presentations.lisp

   1 (in-package :lisp-on-lines)
   2
   3 (defaction edit-instance ((self mewa))
   4   (call-presentation (instance self) :type :editor))
   5
   6 ;;;one-line objects
   7 (defcomponent mewa-one-line-presentation (mewa one-line-presentation)
   8   ()
   9   (:default-initargs
  10    :attributes-getter #'one-line-attributes-getter
  11    :global-properties '(:editablep nil)))
  12
  13 (defmethod one-line-attributes-getter ((self mewa))
  14   (or (meta-model::find-slots-of-type (instance self))
  15       (meta-model::list-keys (instance self))))
  16
  17 ;;;objects
  18 (defcomponent mewa-object-presentation (mewa object-presentation)
  19   ((instance :accessor instance :initarg :instance :initform nil)))
  20
  21 (defcomponent mewa-viewer (mewa-object-presentation)
  22   ()
  23   (:default-initargs
  24    :global-properties '(:editablep nil)))
  25
  26 (defcomponent mewa-editor (mewa-object-presentation)
  27   ()
  28   (:default-initargs
  29    :global-properties '(:editablep t)))
  30
  31 (defcomponent mewa-creator (mewa-editor)
  32   ())
  33
  34 (defmethod present ((pres mewa-object-presentation))
  35   (<:table :class (css-class pres)
  36     (dolist (slot (slots pres))
  37       (<:tr :class "presentation-slot-row"
  38             (present-slot-as-row pres slot))))
  39     (render-options pres (instance pres)))
  40
  41 (defmethod present-slot-as-row ((pres mewa-object-presentation) (slot slot-presentation))
  42   (<:td :class "presentation-slot-label" (<:as-html (label slot)))
  43   (<:td :class "presentation-slot-value" (present-slot slot (instance pres))))
  44
  45
  46 (defcomponent two-column-presentation (mewa-object-presentation) ())
  47
  48 (defmethod present ((pres two-column-presentation))
  49
  50   (<:table :class (css-class pres)
  51            (loop for slot on (slots pres) by #'cddr
  52                  do
  53                  (<:tr :class "presentation-slot-row"
  54                        (<:td :class "presentation-slot-label"
  55                              (<:as-html (label (first slot))))
  56                        (<:td :class "presentation-slot-value"
  57                              (present-slot (first slot) (instance pres)))
  58                        (when (second slot)
  59                          (<:td :class "presentation-slot-label"
  60                                (<:as-html (label (second slot))))
  61                          (<:td :class "presentation-slot-value"
  62                                (present-slot (second slot) (instance pres))))))
  63            (render-options pres (instance pres))))
  64
  65
  66 ;;;lists
  67 (defcomponent mewa-list-presentation (mewa list-presentation)
  68   ((instances :accessor instances :initarg :instances :initform nil)
  69    (instance :accessor instance)
  70    (select-label :accessor select-label :initform "select" :initarg :select-label)
  71    (selectablep :accessor selectablep :initform t :initarg :selectablep)
  72    (deleteablep :accessor deletablep :initarg :deletablep :initform nil)
  73    (viewablep :accessor viewablep :initarg :viewablep :initform nil)))
  74
  75 (defaction select-from-listing ((listing mewa-list-presentation) object index)
  76   (answer object))
  77
  78 (defmethod render-list-row ((listing mewa-list-presentation) object index)
  79   (<:tr :class "item-row"
  80     (<:td :align "center" :valign "top"
  81       (when (editablep listing)
  82         (let ((object object))
  83           (<ucw:input :type "submit"
  84                       :action (edit-from-listing listing object index)
  85                       :value (edit-label listing))))
  86       (<:as-is " ")
  87       (when (deleteablep listing)
  88         (let ((index index))
  89           (<ucw:input :type "submit"
  90                       :action (delete-from-listing listing object index)
  91                       :value (delete-label listing))))
  92       (when (selectablep listing)
  93         (let ((index index))
  94           (<ucw:input :type "submit"
  95                       :action (select-from-listing listing object index)
  96                       :value (select-label listing))))
  97       (when (viewablep listing)
  98         (let ((index index))
  99           (<ucw:input :type "submit"
 100                       :action (call-component listing  (make-presentation object))
 101                       :value "view"))))
 102     (dolist (slot (slots listing))
 103       (<:td :class "data-cell" (present-slot slot object)))
 104     (<:td :class "index-number-cell")
 105     ))
 106
 107 (defmethod get-all-instances ((self mewa-list-presentation))
 108   (instances self))
 109
 110
 111 ;;;; * Presentation Searches
 112
 113
 114 ;;;; ** "search all fields" criteria
 115
 116 (defgeneric search-expr (criteria instance)
 117   (:documentation "Return ready to apply criteria.
 118                    to do with What it is backend dependent."))
 119
 120 (defmacro def-search-expr (((self criteria-type)) (model-expr &body body))
 121   `(defmethod search-expr ((,self ,criteria-type) instance)
 122      (,model-expr
 123       instance
 124       (slot-name (presentation ,self))
 125       ,@body)))
 126
 127 (defmethod search-expr ((self negated-criteria) instance)
 128   (when (criteria self)
 129     (meta-model:expr-not
 130      instance
 131      (search-expr (criteria self) instance))))
 132
 133 (def-search-expr ((self string-starts-with))
 134     (meta-model:expr-starts-with (search-text self)))
 135
 136 (def-search-expr ((self string-ends-with))
 137     (meta-model:expr-ends-with (search-text self)))
 138
 139 (def-search-expr ((self string-contains))
 140     (meta-model:expr-contains (search-text self)))
 141
 142 (def-search-expr ((self number-less-than))
 143     (meta-model:expr-< (number-input self)))
 144
 145 (def-search-expr ((self number-greater-than))
 146     (meta-model:expr-> (number-input self)))
 147
 148 (def-search-expr ((self number-equal-to))
 149     (meta-model:expr-= (number-input self)))
 150
 151
 152
 153 (defcomponent mewa-presentation-search (presentation-search)
 154   ((display-results-p :accessor display-results-p :initarg :display-results-p :initform nil)
 155    (criteria-input :accessor criteria-input :initform "")
 156    (new-criteria :accessor new-criteria :initform nil)))
 157
 158 (defmethod instance ((self mewa:mewa-presentation-search))
 159   (instance (search-presentation self)))
 160
 161 (defmethod search-expr ((self mewa:mewa-presentation-search) instance)
 162   (apply #'meta-model:expr-and instance
 163          (mapcan (lambda (c) (let ((e  (search-expr c instance)))
 164                                (if (listp e) e (list e))))
 165                  (criteria self))))
 166
 167 (defmethod search-query ((self mewa:mewa-presentation-search))
 168   (search-expr self (instance self)))
 169
 170 (defmethod valid-instances ((self mewa:mewa-presentation-search))
 171   (meta-model:select-instances (instance self) (search-query self)))
 172
 173 (defmethod get-all-instances ((self mewa-presentation-search))
 174   (meta-model:select-instances (instance self)))
 175
 176 (defmethod ok ((self mewa-presentation-search) &optional arg)
 177   (declare (ignore arg))
 178   (setf (instances (list-presentation self)) (valid-instances self))
 179   (setf (display-results-p self) t))
 180
 181
 182 (defmethod set-search-input-for-criteria ((criteria criteria) (input t))
 183   (error "No search-input-for-criteria method for ~A : ~A" criteria input))
 184
 185 (defmethod set-search-input-for-criteria ((c string-criteria) input)
 186   (setf (search-text c) input))
 187
 188 (defmethod set-search-input-for-criteria ((c negated-criteria) i)
 189   nil)
 190
 191
 192 (defmethod mewa-add-criteria ((self component) (criteria criteria))
 193   (set-search-input-for-criteria criteria (criteria-input self))
 194   (add-criteria self criteria))
 195
 196 (defmethod find-default-criteria (c mewa-string-slot-presentation)
 197   'string-contains)
 198
 199
 200
 201 (defmethod render-criteria ((res response) (s mewa-presentation-search))
 202   (setf (criteria-input s) "")
 203   (<:ul
 204    (dolist (c (criteria s))
 205      (<:li (render-on res c)
 206            (let ((c c))
 207              (<ucw:input :action (drop-criteria s c) :type "submit" :value "eliminate"))))
 208      (<:li
 209       "Search For: "
 210       (<ucw:input :type "text" :accessor (criteria-input s))
 211       " Using : "
 212        (<ucw:select :accessor (new-criteria s)
 213          (dolist (criteria (applicable-criteria s))
 214            (<ucw:option :value criteria (<:as-html (label criteria)))))
 215        (<ucw:input :type "submit" :action (mewa-add-criteria s (new-criteria s))
 216                    :value "add"))))
 217
 218 (defmethod submit-search ((s mewa-presentation-search))
 219   (with-slots (criteria-input) s
 220
 221     (unless (or (null criteria-input)
 222                 (string-equal "" (remove #\Space criteria-input)))
 223
 224       (mewa-add-criteria s (new-criteria s)))
 225
 226     (ok s)))
 227
 228 (defmethod render-on ((res response) (self mewa-presentation-search))
 229   ;(<:as-html (search-query self))
 230   (render-criteria res self)
 231   (<ucw:input :type "submit" :value "Search" :action (submit-search self))
 232   (when (display-results-p self)
 233     (let ((listing (list-presentation self)))
 234       (setf
 235        (slot-value listing 'ucw::calling-component) (slot-value self 'ucw::calling-component)
 236        (slot-value listing 'ucw::place) (slot-value self 'ucw::place)
 237        (slot-value listing 'ucw::continuation) (slot-value self 'ucw::continuation))
 238
 239       (render-on res listing))))
 240
 241
 242 ;;;;
 243 (defcomponent dont-show-unset-slots ()())
 244
 245 (defmethod slots :around ((self dont-show-unset-slots))
 246   (remove-if-not #'(lambda (s) (let ((s (presentation-slot-value s (instance self))))
 247                                  (and s (not (equal "" s)))))
 248                  (call-next-method)))