X-Git-Url: https://git.hcoop.net/clinton/lisp-on-lines.git/blobdiff_plain/687d5f1cf0e27ab020a2a91d3495ec6edcef0c9f..8e6e6b5651e88009c62f5502b4fabdf2919e0b4f:/src/mewa/presentations.lisp

diff --git a/src/mewa/presentations.lisp b/src/mewa/presentations.lisp
index 3763c27..53942b1 100644
--- a/src/mewa/presentations.lisp
+++ b/src/mewa/presentations.lisp
@@ -1,5 +1,8 @@
 (in-package :mewa)
 
+(defaction edit-instance ((self mewa))
+  (call-presentation (instance self) :type :editor))
+
 ;;;one-line objects
 (defcomponent mewa-one-line-presentation (mewa one-line-presentation)
   ()
@@ -11,12 +14,34 @@
 ;;;objects
 (defcomponent mewa-object-presentation (mewa ucw:object-presentation) ())
 
+(defcomponent two-column-presentation (mewa-object-presentation) ())
+
+(defmethod present ((pres two-column-presentation))
+  
+  (<:table :class (css-class pres)
+	   (loop for slot on (slots pres) by #'cddr
+		 do 
+		 (<:tr :class "presentation-slot-row"
+		       (<:td :class "presentation-slot-label" 
+			     (<:as-html (label (first slot))))
+		       (<:td :class "presentation-slot-value" 
+			     (present-slot (first slot) (instance pres)))
+		       (when (second slot)
+			 (<:td :class "presentation-slot-label" 
+			       (<:as-html (label (second slot))))
+			 (<:td :class "presentation-slot-value" 
+			       (present-slot (second slot) (instance pres))))))
+	   (render-options pres (instance pres))))
+
+
 ;;;lists
 (defcomponent mewa-list-presentation (mewa ucw:list-presentation) 
-  ((instances :accessor instances :initarg :instances :initform nil)
+  ((ucw::instances :accessor instances :initarg :instances :initform nil)
    (instance :accessor instance)
    (select-label :accessor select-label :initform "select" :initarg :select-label)
-   (selectablep :accessor selectablep :initform t :initarg :selectablep)))
+   (selectablep :accessor selectablep :initform t :initarg :selectablep)
+   (ucw::deleteablep :accessor deletablep :initarg :deletablep :initform nil)
+   (viewablep :accessor viewablep :initarg :viewablep :initform nil)))
 
 (defaction select-from-listing ((listing mewa-list-presentation) object index)
   (answer object))
@@ -39,12 +64,101 @@
 	(let ((index index))
 	  (<ucw:input :type "submit"
 		      :action (select-from-listing listing object index)
-		      :value (select-label listing)))))
+		      :value (select-label listing))))
+      (when (viewablep listing)
+	(let ((index index))
+	  (<ucw:input :type "submit"
+		      :action (call-component listing  (make-presentation object))
+		      :value "view"))))
     (dolist (slot (slots listing))
       (<:td :class "data-cell" (present-slot slot object)))
-    (<:td :class "index-number-cell"
-      (<:i (<:as-html index)))
+    (<:td :class "index-number-cell")
     ))
 
 (defmethod get-all-instances ((self mewa-list-presentation))
   (instances self))
+
+
+;;; searching
+(defgeneric search-expr (criteria instance)
+  (:documentation "Return ready to apply criteria.
+                   What to do with it is backend dependent."))
+
+(defmacro def-search-expr (((self criteria-type)) (model-expr &body body))
+  `(defmethod search-expr ((,self ,criteria-type) instance)
+     (,model-expr
+      instance
+      (ucw::slot-name (ucw::presentation ,self))
+      ,@body)))
+
+(defmethod search-expr ((self ucw::negated-criteria) instance)
+  (when (ucw::criteria self)
+    (meta-model:expr-not
+     instance
+     (search-expr (ucw::criteria self) instance))))
+
+(def-search-expr ((self ucw::string-starts-with))
+    (meta-model:expr-starts-with (ucw::search-text self)))
+
+(def-search-expr ((self ucw::string-ends-with))
+    (meta-model:expr-ends-with (ucw::search-text self)))
+
+(def-search-expr ((self ucw::string-contains))
+    (meta-model:expr-contains (ucw::search-text self)))
+
+(def-search-expr ((self ucw::number-less-than))
+    (meta-model:expr-< (ucw::number-input self)))
+
+(def-search-expr ((self ucw::number-greater-than))
+    (meta-model:expr-> (ucw::number-input self)))
+
+(def-search-expr ((self ucw::number-equal-to))
+    (meta-model:expr-= (ucw::number-input self)))
+
+(defcomponent mewa-presentation-search (ucw::presentation-search)
+  ((display-results-p :accessor display-results-p :initarg :display-results-p :initform nil)))
+
+(defmethod instance ((self mewa:mewa-presentation-search))
+  (instance (ucw::search-presentation self)))
+
+(defmethod search-expr ((self mewa:mewa-presentation-search) instance)
+  (apply #'meta-model:expr-and instance
+         (mapcan (lambda (c) (let ((e (search-expr c instance)))
+                               (if (listp e) e (list e))))
+                 (ucw::criteria self))))
+
+(defmethod search-query ((self mewa:mewa-presentation-search))
+  (search-expr self (instance self)))
+
+(defmethod valid-instances ((self mewa:mewa-presentation-search))
+  (meta-model:select-instances (instance self) (search-query self)))
+
+(defmethod get-all-instances ((self mewa-presentation-search))
+  (meta-model:select-instances (instance self)))
+
+(defmethod ok ((self mewa-presentation-search) &optional arg)
+  (declare (ignore arg))
+  (setf (ucw::instances (ucw::list-presentation self)) (valid-instances self))
+  (setf (display-results-p self) t))
+
+
+(defmethod render-on ((res response) (self mewa-presentation-search))
+  ;(<:as-html (search-query self))
+  (ucw::render-criteria res self)
+  (<ucw:input :type "submit" :value "Search" :action (ok self))
+  (when (display-results-p self)
+    (let ((listing (ucw::list-presentation self)))
+      (setf 
+       (slot-value listing 'ucw::calling-component) (slot-value self 'ucw::calling-component)
+       (slot-value listing 'ucw::place) (slot-value self 'ucw::place)
+       (slot-value listing 'ucw::continuation) (slot-value self 'ucw::continuation))
+      
+      (render-on res listing))))
+
+;;;;
+(defcomponent dont-show-unset-slots ()())
+
+(defmethod slots :around ((self dont-show-unset-slots))
+  (remove-if-not #'(lambda (s) (let ((s (presentation-slot-value s (instance self))))
+				 (and s (not (equal "" s)))))
+		 (call-next-method)))
\ No newline at end of file