+
+
+;;;; * Presentation Searches
+
+
+;;;; ** "search all fields" criteria
+
+(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)
+ (criteria-input :accessor criteria-input :initform "")
+ (new-criteria :accessor new-criteria :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 set-search-input-for-criteria ((criteria ucw::criteria) (input t))
+ (error "No search-input-for-criteria method for ~A : ~A" criteria input))
+
+(defmethod set-search-input-for-criteria ((c ucw::string-criteria) input)
+ (setf (ucw::search-text c) input))
+
+(defmethod set-search-input-for-criteria ((c ucw::negated-criteria) i)
+ nil)
+
+
+(defmethod mewa-add-criteria ((self component) (criteria ucw::criteria))
+ (set-search-input-for-criteria criteria (criteria-input self))
+ (ucw::add-criteria self criteria))
+
+(defmethod find-default-criteria (c ucw::mewa-string-slot-presentation)
+ 'ucw::string-contains)
+
+
+
+(defmethod render-criteria ((res response) (s mewa-presentation-search))
+ (setf (criteria-input s) "")
+ (<:ul
+ (dolist (c (criteria s))
+ (<:li (render-on res c)
+ (let ((c c))
+ (<ucw:input :action (ucw::drop-criteria s c) :type "submit" :value "eliminate"))))
+ (<:li
+ "Search For: "
+ (<ucw:input :type "text" :accessor (criteria-input s))
+ " Using : "
+ (<ucw:select :accessor (new-criteria s)
+ (dolist (criteria (ucw::applicable-criteria s))
+ (<ucw:option :value criteria (<:as-html (label criteria)))))
+ (<ucw:input :type "submit" :action (mewa-add-criteria s (new-criteria s))
+ :value "add"))))
+
+(defmethod submit-search ((s mewa-presentation-search))
+ (with-slots (criteria-input) s
+
+ (unless (or (null criteria-input)
+ (string-equal "" (remove #\Space criteria-input)))
+
+ (mewa-add-criteria s (new-criteria s)))
+
+ (ok s)))
+
+(defmethod render-on ((res response) (self mewa-presentation-search))
+ ;(<:as-html (search-query self))
+ (render-criteria res self)
+ (<ucw:input :type "submit" :value "Search" :action (submit-search 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