;;;;
;;;; A simple example file for hyperobjects
;;;;
-;;;; $Id: person.lisp,v 1.3 2002/12/13 22:15:30 kevin Exp $
+;;;; $Id: person.lisp,v 1.4 2002/12/14 02:30:58 kevin Exp $
;;;;
;;;; This file is Copyright (c) 2000-2002 by Kevin M. Rosenberg
;;;;
:value-constraint integerp :input-filter convert-to-date)
(resume :value-type string :initarg :resume :reader resume
:value-constraint stringp)
- (addresses :value-type (list-of subobject) :initarg :addresses :reader addresses))
+;; (addresses :value-type (list-of subobject) :initarg :addresses :reader addresses))
+ (addresses :subobject t :initarg :addresses :reader addresses))
(:metaclass hyperobject-class)
(:default-initargs :first-name "" :last-name "" :dob 0 :resume nil)
(:default-print-slots first-name last-name dob resume)
(:user-name "Person")
(:description "A Person")
(:direct-rules
- ((:rule-1 (:depends-on '(last-name first-name))
- (setf full-name (concatentate 'string first-name " " last-name))))))
+ (:rule-1 (:dependants (last-name first-name) :volatile full-name)
+ (setf full-name (concatentate 'string first-name " " last-name)))))
(defun format-date (ut)
(when (typep ut 'integer)
:value-constraint stringp)
(street :value-type (varchar 30) :initarg :street :reader street
:value-constraint stringp)
- (phones :value-type (list-oj subobject) :initarg :phones :reader phones)
+ (phones :subobject t :initarg :phones :reader phones))
(:metaclass hyperobject-class)
(:default-initargs :title nil :street nil)
(:user-name "Address")
;;;; in Text, HTML, and XML formats. This includes hyperlinking
;;;; capability and sub-objects.
;;;;
-;;;; $Id: mop.lisp,v 1.13 2002/12/13 22:26:41 kevin Exp $
+;;;; $Id: mop.lisp,v 1.14 2002/12/14 02:30:58 kevin Exp $
;;;;
;;;; This file is Copyright (c) 2000-2002 by Kevin M. Rosenberg
;;;;
(version :initarg :version :initform nil
:accessor version
:documentation "Version number for class")
- (sql-name :initarg :table-name :initform nil)
+ (sql-name :initarg :sql-name :initform nil)
;;; The remainder of these fields are calculated one time
;;; in finalize-inheritence.
"List of fields that contain a list of subobjects objects.")
(hyperlinks :type list :initform nil :accessor hyperlinks
:documentation "List of fields that have hyperlinks")
- (direct-rules :type list :initform nil :accessor direct-rules
+ (direct-rules :type list :initform nil :initarg :direct-rules
+ :accessor direct-rules
:documentation "List of rules to fire on slot changes.")
(class-id :type integer :initform nil
:accessor class-id
(t
obj)))
+(defun canonicalize-value-type (vt)
+ (typecase vt
+ (atom
+ (ensure-keyword vt))
+ (cons
+ (cons (ensure-keyword (car vt)) (cdr vt)))
+ (t
+ t)))
+
(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))
- (let ((ia (compute-effective-slot-definition-initargs
- cl #+lispworks name dsds)))
- (apply
- #'make-instance 'hyperobject-esd
- :ho-type ho-type
- :sql-type sql-type
- :length length
- :print-formatter (slot-value dsd 'print-formatter)
- :subobject (slot-value dsd 'subobject)
- :hyperlink (slot-value dsd 'hyperlink)
- :hyperlink-parameters (slot-value dsd 'hyperlink-parameters)
- :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)
- (when (consp ho-type)
- (setq ho-type (car ho-type)))
- (check-type ho-type symbol)
- (case ho-type
- ((or :string :cdata :varchar :char)
+ (value-type (canonicalize-value-type (slot-value dsd 'value-type))))
+ (multiple-value-bind (sql-type length) (value-type-to-sql-type value-type)
+ (setf (slot-value dsd 'sql-type) sql-type)
+ (setf (slot-value dsd 'type) (value-type-to-lisp-type value-type))
+ (let ((ia (compute-effective-slot-definition-initargs
+ cl #+lispworks name dsds)))
+ (apply
+ #'make-instance 'hyperobject-esd
+ :value-type value-type
+ :sql-type sql-type
+ :length length
+ :print-formatter (slot-value dsd 'print-formatter)
+ :subobject (slot-value dsd 'subobject)
+ :hyperlink (slot-value dsd 'hyperlink)
+ :hyperlink-parameters (slot-value dsd 'hyperlink-parameters)
+ :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 value-type-to-lisp-type (value-type)
+ (case (if (atom value-type)
+ value-type
+ (car value-type))
+ ((:string :cdata :varchar :char)
'string)
(:character
'character)
'boolean)
(:integer
'integer)
- ((or :float :single-float)
- 'single-float)
- (:double-float
- 'double-float)
- (nil
- t)
- (otherwise
- ho-type)))
-
-(defun ho-type-to-sql-type (ho-type)
- (when (consp ho-type)
- (setq ho-type (car ho-type)))
- (check-type ho-type symbol)
- (case ho-type
- ((or :string :cdata)
- 'string)
- (:fixnum
- 'integer)
- (:boolean
- 'boolean)
- (:integer
- 'integer)
- ((or :float :single-float)
+ ((:float :single-float)
'single-float)
(:double-float
'double-float)
- (nil
- t)
(otherwise
- ho-type)))
-
+ t)))
+
+(defun value-type-to-sql-type (value-type)
+ "Return two values, the sql type and field length."
+ (let ((type (if (atom value-type)
+ value-type
+ (car value-type)))
+ (length (when (consp value-type)
+ (cadr value-type))))
+ (values
+ (case type
+ ((:string :cdata)
+ :string)
+ ((:fixnum :integer)
+ :integer)
+ (:boolean
+ :boolean)
+ ((:float :single-float)
+ :single-float)
+ (:double-float
+ :double-float)
+ (otherwise
+ :text))
+ length)))
;;;; Class initialization function
;;; Slot accessor and class rules
(defclass rule ()
- ((dependants :initarg dependants :initform nil :accessor dependants)
- (volatile :initarg modifieds :initform nil :accessor modifieds)
- (source-code :initarg source-code :initform nil :accessor source-code)
- (function :initform nil :accessor function)))
-
-(defun compile-rule (source-code cl)
- )
+ ((name :initarg :name :initform nil :accessor name)
+ (dependants :initarg :dependants :initform nil :accessor dependants)
+ (volatile :initarg :volatile :initform nil :accessor volatile)
+ (source-code :initarg :source-code :initform nil :accessor source-code)
+ (func :initform nil :initarg :func :accessor func)))
+
+(defun compile-rule (source-code dependants volatile cl)
+ #'(lambda (obj)
+ `(with-slots ,(append dependants volatile) obj
+ ,@source-code)))
(defun finalize-rules (cl)
(let* ((direct-rules (direct-rules cl))
- (rule-vector (make-vector (length direct-rules) :fill-pointer nil
- :adjustable nil)))
- (dotimes (i (length direct-rules))
+ (rules '()))
+ (dolist (rule direct-rules)
(destructuring-bind (name (&key dependants volatile) &rest source-code)
- (nth i direct-rules)
- (setf (aref rule-vector i) (make-instance 'rule
- :name name
- :dependants depedenants
- :volatile volatile
- :source-code source-code
- :function (compile-rule source-code cl)))))
- (setf (rules cl) rule-vector)))
-
-(defun fire-class-rules (cl obj)
+ rule
+ (setf dependants (mklist dependants)
+ volatile (mklist volatile))
+ (push
+ (make-instance 'rule :name name :dependants dependants
+ :volatile volatile :source-code source-code
+ :func (compile-rule
+ source-code dependants volatile cl))
+ rules)))
+ (setf (rules cl) (nreverse rules))))
+
+
+(defun fire-class-rules (cl obj slot)
"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))))
-
+ (slot standard-effective-slot-definition))
+ #+ignore
+ (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)))
+ (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 slot)
+ new-value))))
+
+#+ignore
(defmethod slot-value-using-class :around ((cl hyperobject-class) obj
(slot standard-effective-slot-definition))
(let ((value (call-next-method)))
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