;;;; in Text, HTML, and XML formats. This includes hyperlinking
;;;; capability and sub-objects.
;;;;
-;;;; $Id: mop.lisp,v 1.10 2002/12/13 05:44:19 kevin Exp $
+;;;; $Id: mop.lisp,v 1.12 2002/12/13 22:00:05 kevin Exp $
;;;;
;;;; This file is Copyright (c) 2000-2002 by Kevin M. Rosenberg
;;;;
(defclass hyperobject-class (standard-class)
( ;; slots initialized in defclass
(user-name :initarg :user-name :type string :initform nil
- :documentation "User name for class")
+ :accessor user-name
+ :documentation "User name for class")
(default-print-slots :initarg :default-print-slots :type list :initform nil
+ :accessor default-print-slots
:documentation "Defaults slots for a view")
(description :initarg :description :initform nil
+ :accessor description
:documentation "Class description")
(version :initarg :version :initform nil
- :documentation "Version number for class")
+ :accessor version
+ :documentation "Version number for class")
(sql-name :initarg :table-name :initform nil)
;;; The remainder of these fields are calculated one time
;;; in finalize-inheritence.
- (subobjects :initform nil :documentation
+ (subobjects :initform nil :accessor subobjects
+ :documentation
"List of fields that contain a list of subobjects objects.")
- (hyperlinks :type list :initform nil :documentation
- "List of fields that have hyperlinks")
- (class-id :type integer :initform nil :documentation
- "Unique ID for the class")
+ (hyperlinks :type list :initform nil :accessor hyperlinks
+ :documentation "List of fields that have hyperlinks")
+ (direct-rules :type list :initform nil :accessor direct-rules
+ :documentation "List of rules to fire on slot changes.")
+ (class-id :type integer :initform nil
+ :accessor class-id
+ :documentation "Unique ID for the class")
;; SQL commands
(create-table-cmd :initform nil :reader create-table-cmd)
`(,(intern (symbol-name x))
:initarg
,(intern (symbol-name x) (symbol-name :keyword))
- :initform nil))
+ :initform nil
+ :accessor
+ ,(intern (concatenate 'string
+ (symbol-name :dsd-)
+ (symbol-name x)))))
*slot-options*))))
(eval
`(defclass hyperobject-esd (standard-effective-slot-definition)
`(,(intern (symbol-name x))
:initarg
,(intern (symbol-name x) (symbol-name :keyword))
- :initform nil))
- (append *slot-options* *slot-options-no-initarg*)))))
+ :initform nil
+ :accessor
+ ,(intern (concatenate 'string
+ (symbol-name :esd-)
+ (symbol-name x)))))
+ (append *slot-options* *slot-options-no-initarg*)))))
) ;; eval-when
(defun intern-in-keyword (obj)
(t
obj)))
-(defmethod compute-effective-slot-definition :around
- ((cl hyperobject-class) #+(or allegro lispworks) name dsds)
+(defmethod compute-effective-slot-definition :around ((cl hyperobject-class)
+ #+(or allegro lispworks) name
+ dsds)
#+allergo (declare (ignore name))
(let* ((dsd (car dsds))
(ho-type (intern-in-keyword (slot-value dsd 'type)))
(sql-type (ho-type-to-sql-type ho-type))
(length (when (consp ho-type) (cadr ho-type))))
+ #+allergo (declare (ignore name))
(setf (slot-value dsd 'ho-type) ho-type)
(setf (slot-value dsd 'sql-type) sql-type)
(setf (slot-value dsd 'type) (ho-type-to-lisp-type ho-type))
:description (slot-value dsd 'description)
:user-name (slot-value dsd 'user-name)
:index (slot-value dsd 'index)
+ :value-constraint (slot-value dsd 'value-constraint)
+ :null-allowed (slot-value dsd 'null-allowed)
ia))))
(defun ho-type-to-lisp-type (ho-type)
(defun finalize-subobjects (cl)
"Process class subobjects slot"
- (setf (slot-value cl 'subobjects)
+ (setf (subobjects cl)
(let ((subobjects '()))
(dolist (slot (class-slots cl))
- (let-when (subobj-def (slot-value slot 'subobject))
+ (let-when (subobj-def (esd-subobject slot))
(let ((subobject (make-instance 'subobject
:name-class (class-name cl)
:name-slot (slot-definition-name slot)
(let ((*print-circle* nil))
(setf (documentation (class-name cl) 'class)
(format nil "Hyperobject~A~A~A~A"
- (aif (slot-value cl 'user-name)
+ (aif (user-name cl)
(format nil ": ~A" it ""))
- (aif (slot-value cl 'description)
+ (aif (description cl)
(format nil "~%Class description: ~A" it) "")
- (aif (slot-value cl 'subobjects)
+ (aif (subobjects cl)
(format nil "~%Subobjects:~{ ~A~}" (mapcar #'name-slot it)) "")
- (aif (slot-value cl 'default-print-slots)
+ (aif (default-print-slots cl)
(format nil "~%Default print slots:~{ ~A~}" it) "")
))))
(find name (class-slots cl) :key #'slot-definition-name))
(defun hyperobject-class-user-name (obj)
- (awhen (slot-value (class-of obj) 'user-name)
+ (awhen (user-name (class-of obj))
(if (consp it)
(car it)
it)))
(defun hyperobject-class-subobjects (obj)
- (slot-value (class-of obj) 'subobjects))
+ (subobjects (class-of obj)))
(defun hyperobject-class-hyperlinks (obj)
- (slot-value (class-of obj) 'hyperlinks))
+ (hyperlinks (class-of obj)))
(defun hyperobject-class-fields (obj)
(class-slots (class-of obj)))
+;;; Slot accessor and class rules
+
+(defun fire-class-rules (cl obj)
+ "Fire all class rules. Called after a slot is modified."
+ (dolist (rule (direct-rules cl))
+ (cmsg "firing rule: ~a" rule)))
+
+
+(defmethod (setf slot-value-using-class)
+ :around (new-value (cl hyperobject-class) obj
+ (slot standard-effective-slot-definition))
+ (cmsg-c :verbose "Setf slot value: class: ~s, obj: ~s, slot: ~s, value: ~s" cl (class-of obj) slot new-value)
+ (let ((func (esd-value-constraint slot)))
+ (cond
+ ((and func (not (funcall func new-value obj)))
+ (warn "Rejected change to value of slot ~a of object ~a"
+ (slot-definition-name slot) obj)
+ (slot-value obj (slot-definition-name slot)))
+ (t
+ (call-next-method)
+ (fire-class-rules cl obj)
+ new-value))))
+
+(defmethod slot-value-using-class :around ((cl hyperobject-class) obj
+ (slot standard-effective-slot-definition))
+ (let ((value (call-next-method)))
+ (cmsg-c :verbose "slot value: class: ~s, obj: ~s, slot: ~s" cl (class-of obj) slot)
+ value))
projects / hyperobject.git / blobdiff