X-Git-Url: http://git.kpe.io/?p=hyperobject.git;a=blobdiff_plain;f=mop.lisp;h=5307f3ed545f07ed60be74ca9ee88378f1ab2cce;hp=49c6d9789cc2da19d6644969a87391e2a9c81844;hb=84f0745468d57540f972b31c230f1ccae2bc1768;hpb=ab662b1b37a8b859b607bee29ae4bdbc0075228e

diff --git a/mop.lisp b/mop.lisp
index 49c6d97..5307f3e 100644
--- a/mop.lisp
+++ b/mop.lisp
@@ -11,16 +11,12 @@
 ;;;; in Text, HTML, and XML formats. This includes hyperlinking
 ;;;; capability and sub-objects.
 ;;;;
-;;;; $Id: mop.lisp,v 1.62 2003/04/25 04:53:52 kevin Exp $
-;;;;
-;;;; This file is Copyright (c) 2000-2002 by Kevin M. Rosenberg
+;;;; $Id$
 ;;;;
+;;;; This file is Copyright (c) 2000-2003 by Kevin M. Rosenberg
 ;;;; *************************************************************************
  
-(in-package :hyperobject)
-
-(eval-when (:compile-toplevel :execute)
-  (declaim (optimize (speed 2) (safety 2) (compilation-speed 0) (debug 2))))
+(in-package #:hyperobject)
 
 ;; Main class
 
@@ -29,6 +25,9 @@
    (user-name :initarg :user-name :type string :initform nil
 	      :accessor user-name
 	      :documentation "User name for class")
+   (user-name-plural :initarg :user-name-plural :type string :initform nil
+		     :accessor user-name-plural
+		     :documentation "Plural 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")
@@ -38,7 +37,13 @@
    (version :initarg :version :initform nil
 	    :accessor version
 	    :documentation "Version number for class")
-   (sql-name :initarg :sql-name :initform nil)
+   (closures :initarg :closures :initform nil
+	     :accessor closures
+	     :documentation "Closures to call on slot chnages")
+   (sql-name :initarg :sql-name :accessor sql-name :initform nil
+	     :documentation "SQL Name for this class")
+   (guid :initarg :guid :accessor guid :initform nil
+	 :documentation "ID string for this class")
 
    ;;; The remainder of these fields are calculated one time
    ;;; in finalize-inheritence.
@@ -51,12 +56,17 @@
    (direct-rules :type list :initform nil :initarg :direct-rules
 		 :accessor direct-rules
 		 :documentation "List of rules to fire on slot changes.")
+   (direct-views :type list :initform nil :initarg :direct-views
+		 :accessor direct-views
+		 :documentation "List of views")
    (class-id :type integer :initform nil
 	     :accessor class-id
 	     :documentation "Unique ID for the class")
    (default-view :initform nil :initarg :default-view :accessor default-view
 		 :documentation "The default view for a class")
-
+   (documementation :initform nil :initarg :documentation
+		    :documentation "Documentation string for hyperclass.")
+   
    ;; SQL commands
    (create-table-cmd :initform nil :reader create-table-cmd)
    (create-indices-cmds :initform nil :reader create-index-cmds)
@@ -70,23 +80,26 @@
   (:documentation "Metaclass for Markup Language classes."))
 
 (defclass subobject ()
-  ((name-class :type symbol :initform nil :initarg :name-class :reader name-class)
-   (name-slot :type symbol :initform nil :initarg :name-slot :reader name-slot)
-   (lookup :type symbol :initform nil :initarg :lookup :reader lookup)
-   (lookup-keys :type list :initform nil :initarg :lookup-keys
-		:reader lookup-keys))
-  (:documentation "Contains subobject information"))
+  ((name-class :type symbol :initarg :name-class :reader name-class)
+   (name-slot :type symbol :initarg :name-slot :reader name-slot)
+   (subobj-class :type symbol :initarg :subobj-class :reader subobj-class)
+   (lookup :type (or function symbol) :initarg :lookup :reader lookup)
+   (lookup-keys :type list :initarg :lookup-keys :reader lookup-keys))
+  (:documentation "subobject information")
+  (:default-initargs :name-class nil :name-slot nil :subobj-class nil
+		     :lookup nil :lookup-keys nil))
 
 
 (defmethod print-object ((obj subobject) (s stream))
-  (print-unreadable-object (obj s :type t :identity t)
-    (format s "~S" (name obj))))
+  (print-unreadable-object (obj s :type t)
+    (format s "~S" (name-slot obj))))
 
 (defclass hyperlink ()
   ((name :type symbol :initform nil :initarg :name :reader name)
    (lookup
     ;; The type specifier seems to break sbcl
-    ;; :type (or function symbol)
+    :type (or function symbol)
+    ;;    :type t
     :initform nil :initarg :lookup :reader lookup)
    (link-parameters :type list :initform nil :initarg :link-parameters
 		    :reader link-parameters)))
@@ -95,22 +108,48 @@
   (print-unreadable-object (obj s :type t :identity t)
     (format s "~S" (name obj))))
 
-#+(or cmu scl sbcl)
 (defmethod validate-superclass ((class hyperobject-class) (superclass standard-class))
   t)
 
 (defmethod finalize-inheritance :after ((cl hyperobject-class))
+  ;; Work-around needed for OpenMCL
+  #+ignore
+  (unless (find-class (class-name cl))
+    (setf (find-class (class-name cl)) cl))
+  
   (init-hyperobject-class cl)
   )
 
+(eval-when (:compile-toplevel :load-toplevel :execute)
+  (when (>= (length (generic-function-lambda-list
+		     (ensure-generic-function
+		      'compute-effective-slot-definition)))
+	    3)
+    (pushnew :ho-normal-cesd cl:*features*))
+  
+    (when (>= (length (generic-function-lambda-list
+		       (ensure-generic-function
+			'direct-slot-definition-class)))
+	    3)
+      (pushnew :ho-normal-dsdc cl:*features*))
+    
+    (when (>= (length (generic-function-lambda-list
+		       (ensure-generic-function
+			'effective-slot-definition-class)))
+	      3)
+      (pushnew :ho-normal-esdc cl:*features*)))
+
 ;; Slot definitions
-(defmethod direct-slot-definition-class ((cl hyperobject-class) 
-					 #+allegro &rest
-					 iargs)
+(defmethod direct-slot-definition-class ((cl hyperobject-class)
+					 #+ho-normal-dsdc &rest iargs)
   (find-class 'hyperobject-dsd))
 
+(defmethod effective-slot-definition-class ((cl hyperobject-class) 
+					    #+ho-normal-esdc &rest iargs)
+  (find-class 'hyperobject-esd))
+
 
-					; Slot definitions
+;;; Slot definitions
 
 (eval-when (:compile-toplevel :load-toplevel :execute)
   (defmacro process-class-option (slot-name &optional required)
@@ -121,7 +160,7 @@
       (when (and ,required (null value))
 	(error "hyperobject class slot ~A must have a value" name))
       (list name `',value))
-    #+(or allegro sbcl cmu scl)
+    #+(or allegro sbcl cmu scl openmcl)
     (declare (ignore slot-name required))
     )
 
@@ -190,60 +229,97 @@
     (atom
      (ensure-keyword vt))
     (cons
-     (cons (ensure-keyword (car vt)) (cdr vt)))
+     (list (ensure-keyword (car vt)) (cadr vt)))
     (t
      t)))
 
-(eval-when (:compile-toplevel :load-toplevel :execute)
-  (when (>= (length (generic-function-lambda-list
-		     (ensure-generic-function
-		      'compute-effective-slot-definition)))
-	    3)
-    (push :ho-named-cesd-fun cl:*features*)))
-
 (defmethod compute-effective-slot-definition :around ((cl hyperobject-class)
-						      #+ho-named-cesd-fun name
+						      #+ho-normal-cesd name
 						      dsds)
-  #+allegro (declare (ignore name))
+  (declare (ignore #+ho-normal-cesd name))
+  (let ((esd (call-next-method)))
+    (if (typep esd 'hyperobject-esd)
+	(compute-hyperobject-esd esd dsds)
+	esd)))
+
+(defun compute-hyperobject-esd (esd dsds)
   (let* ((dsd (car dsds))
 	 (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)))))
-
-
-#+ho-named-cesd-fun
-(setq cl:*features* (delete :ho-named-cesd-fun cl:*features*))
+    (multiple-value-bind (sql-type sql-length) 
+	(value-type-to-sql-type value-type)
+      (setf (esd-sql-type esd) sql-type)
+      (setf (esd-sql-length esd) sql-length))
+    (setf (slot-value esd 'type) (value-type-to-lisp-type value-type))
+    (setf (esd-value-type esd) value-type)
+    (setf (esd-user-name esd)
+	  (aif (dsd-user-name dsd)
+	       it
+	       (string-downcase (symbol-name (slot-definition-name dsd)))))
+    (setf (esd-sql-name esd)
+	  (aif (dsd-sql-name dsd)
+	       it
+	       (lisp-name-to-sql-name (slot-definition-name dsd))))
+    (setf (esd-sql-name esd)
+	  (aif (dsd-sql-name dsd)
+	       it
+	       (lisp-name-to-sql-name (slot-definition-name dsd))))
+    (dolist (name '(print-formatter subobject hyperlink hyperlink-parameters
+		    description value-constraint indexed null-allowed
+		    unique short-description void-text read-only-groups
+		    hidden-groups unit disable-predicate view-type
+		    list-of-values stored))
+      (setf (slot-value esd name) (slot-value dsd name)))
+    esd))
+
+(defun lisp-name-to-sql-name (lisp)
+  "Convert a lisp name (atom or list, string or symbol) into a canonical
+SQL name"
+  (unless (stringp lisp)
+    (setq lisp
+	  (typecase lisp
+	    (symbol (symbol-name lisp))
+	    (t (write-to-string lisp)))))
+  (do* ((len (length lisp))
+	(sql (make-string len))
+	(i 0 (1+ i)))
+      ((= i len) (string-upcase sql))
+    (declare (fixnum i)
+	     (simple-string sql))
+    (setf (schar sql i)
+	  (let ((c (char lisp i)))
+	    (case c
+	      ((#\- #\$ #\+ #\#) #\_)
+	      (otherwise c))))))
+
+#+ho-normal-cesd
+(setq cl:*features* (delete :ho-normal-cesd cl:*features*))
+#+ho-normal-dsdc
+(setq cl:*features* (delete :ho-normal-dsdc cl:*features*))
+#+ho-normal-esdc
+(setq cl:*features* (delete :ho-normal-esdc cl:*features*))
+
+(defun lisp-type-is-a-string (type)
+  (or (eq type 'string)
+      (and (listp type) (some #'(lambda (x) (eq x 'string)) type))))
+
+(defun base-value-type (value-type)
+  (if (atom value-type)
+      value-type
+    (car value-type)))
 
 (defun value-type-to-lisp-type (value-type)
-  (case (if (atom value-type)
-	    value-type
-	    (car value-type))
+  (case (base-value-type value-type)
     ((:string :cdata :varchar :char)
      '(or null string))
+    (:datetime
+     '(or null integer))
     (:character
      '(or null character))
     (:fixnum
      '(or null fixnum))
     (:boolean
      '(or null boolean))
-    (:integer
+    ((:integer :long-integer)
      '(or null integer))
     ((:float :single-float)
      '(or null single-float))
@@ -254,129 +330,125 @@
 
 (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)))
+  (let ((type (base-value-type value-type))
 	(length (when (consp value-type)
 		  (cadr value-type))))
     (values
      (case type
-       ((:string :cdata)
-	:string)
+       ((:char :character)
+	:char)
+       (:varchar
+	:varchar)
        ((:fixnum :integer)
 	:integer)
+       (:long-integer
+	:long-integer)
        (:boolean
 	:boolean)
        ((:float :single-float)
 	:single-float)
        (:double-float
 	:double-float)
+       (:datetime
+        :long-integer)
        (otherwise
 	:text))
      length)))
 
 ;;;; Class initialization function
 
-;; defines a slot-unbound method for class and slot-name, fills
-;; the slot by calling reader function with the slot values of
-;; the instance's reader-keys
-(defmacro def-lazy-reader (class slot-name reader &rest reader-keys)
-  (let* ((the-slot-name (gensym))
-	 (the-class (gensym))
-	 (the-instance (gensym))
-	 (keys '()))
-    (dolist (key reader-keys)
-      (push (list 'slot-value the-instance (list 'quote key)) keys))
-    (setq keys (nreverse keys))
-    `(defmethod slot-unbound (,the-class (,the-instance ,class)
-			      (,the-slot-name (eql ',slot-name)))
-      (declare (ignore ,the-class))
-      (setf (slot-value ,the-instance ,the-slot-name) (,reader ,@keys)))))
-
-
-#+lispworks
-(defun intern-eql-specializer (slot)
-  `(eql ,slot))
-
-#+(or sbcl cmu lispworks)
-(defun ensure-lazy-reader (class-name slot-name reader &rest reader-keys)
-  (let ((keys nil)
-	(gf (ensure-generic-function 'slot-unbound)))
-    (dolist (key reader-keys)
-      (push (list 'slot-value 'the-instance (list 'quote key)) keys))
-    (setq keys (nreverse keys))
-    (multiple-value-bind (method-lambda init-args-values)
-	(make-method-lambda
-	 gf
-	 (class-prototype (generic-function-method-class gf))
-	 #-lispworks
-	 `(lambda (the-class the-instance the-slot-name)
-	   (declare (ignore the-class))
-	   (setf (slot-value the-instance the-slot-name) (,reader ,@keys)))
-	 #+lispworks
-	 '(the-class the-instance the-slot-name)
-	 #+lispworks
-	 nil
-	 #+lispworks
-	 `(setf (slot-value the-instance the-slot-name) (,reader ,@keys))
-	 nil)
-      (add-method gf
-		  (apply
-		   #'make-instance (generic-function-method-class gf)
-		   ':specializers (list (class-of (find-class class-name))
-					(find-class class-name)
-					(intern-eql-specializer slot-name))
-		   ':lambda-list '(the-class the-instance the-slot-name)
-		   ':function (compile nil method-lambda)
-		   init-args-values)))))
+;; One entry for each class with lazy readers defined.  The value is a plist mapping
+;; slot-name to a lazy reader, each of which is a list of a function and slot-names.
+(defvar *lazy-readers* (make-hash-table))
+
+(defmethod slot-unbound ((class hyperobject-class) instance slot-name)
+  (let ((lazy-reader
+	 (loop for super in (class-precedence-list class)
+	       as lazy-reader = (getf (gethash super *lazy-readers*) slot-name)
+	       when lazy-reader return it)))
+    (if lazy-reader
+	(setf (slot-value instance slot-name)
+	      (if (atom lazy-reader)
+		  (make-instance lazy-reader)
+		  (apply (car lazy-reader)
+			 (loop for arg-slot-name in (cdr lazy-reader)
+			       collect (slot-value instance arg-slot-name)))))
+	;; No lazy reader -- defer to regular slot-unbound handling.
+	(call-next-method))))
+
+;; The reader is a function and the reader-keys are slot names.  The slot is lazily set to
+;; the result of applying the function to the slot-values of those slots, and that value
+;; is also returned.
+(defun ensure-lazy-reader (cl class-name slot-name subobj-class reader 
+			   &rest reader-keys)
+  (setf (getf (gethash cl *lazy-readers*) slot-name)
+    (aif subobj-class
+	 it
+	 (list* reader (copy-list reader-keys)))))
+
+(defun remove-lazy-reader (class-name slot-name)
+  (setf (getf (gethash (find-class class-name) *lazy-readers*) slot-name)
+    nil))
+
 
 (defun finalize-subobjects (cl)
   "Process class subobjects slot"
   (setf (subobjects cl)
 	(let ((subobjects '()))
 	  (dolist (slot (class-slots cl))
-	    (let-when (subobj-def (esd-subobject slot))
-		      (let ((subobject (make-instance 'subobject
-						      :name-class (class-name cl)
-						      :name-slot (slot-definition-name slot)
-						      :lookup (if (atom subobj-def)
-								  subobj-def
-								  (car subobj-def))
-						      :lookup-keys (if (atom subobj-def)
-								       nil
-								       (cdr subobj-def)))))
-			(unless (eq (lookup subobject) t)
-			  #-(or sbcl cmu lispworks)
-			  (eval
-			   `(hyperobject::def-lazy-reader ,(name-class subobject)
-			     ,(name-slot subobject) ,(lookup subobject)
-			     ,@(lookup-keys subobject)))
-			  #+(or sbcl cmu lispworks)
-			  (apply #'ensure-lazy-reader 
-				 (name-class subobject) (name-slot subobject) (lookup subobject) (lookup-keys subobject))
-			  )
-			(push subobject subobjects))))
+	    (let-when
+	     (subobj-def (esd-subobject slot))
+	     (let ((subobject
+		    (make-instance 'subobject
+				   :name-class (class-name cl)
+				   :name-slot (slot-definition-name slot)
+				   :subobj-class (when (atom subobj-def)
+						   subobj-def)
+				   :lookup (when (listp subobj-def)
+					     (car subobj-def))
+				   :lookup-keys (when (listp subobj-def)
+						  (cdr subobj-def)))))
+	       (unless (eq (lookup subobject) t)
+		 (apply #'ensure-lazy-reader
+			cl
+			(name-class subobject) (name-slot subobject)
+			(subobj-class subobject)
+			(lookup subobject) (lookup-keys subobject))
+		 (push subobject subobjects)))))
 	  ;; sbcl/cmu reverse class-slots compared to the defclass form
-	  ;; subobject is already reversed from the dolist/push loop, so re-reverse on cmu/sbcl
+	  ;; so re-reverse on cmu/sbcl
 	  #+(or cmu sbcl) subobjects
 	  #-(or cmu sbcl) (nreverse subobjects)
 	  )))
 
+(defun finalize-class-slots (cl)
+  "Make sure all class slots have an expected value"
+  (unless (user-name cl)
+    (setf (user-name cl) (format nil "~:(~A~)" (class-name cl))))
+  
+  (setf (user-name-plural cl)
+	(if (and (consp (user-name cl)) (cadr (user-name cl)))
+	    (cadr (user-name cl))
+	    (format nil "~A~P" (if (consp (user-name cl))
+				   (car (user-name cl))
+				   (user-name cl))
+		    2)))
+
+  (dolist (name '(user-name description version guid sql-name))
+    (awhen (slot-value cl name)
+	   (setf (slot-value cl name)
+	     (if (listp it)
+		 (car it)
+	       it))))
+  
+  (unless (sql-name cl)
+    (setf (sql-name cl) (lisp-name-to-sql-name (class-name cl))))
+  )
+
 (defun finalize-documentation (cl)
   "Calculate class documentation slot"
-  (awhen (slot-value cl 'user-name)
-	 (setf (slot-value cl 'user-name)
-	       (etypecase (slot-value cl 'user-name)
-		 (cons (car it))
-		 ((or string symbol) it))))
-  (awhen (slot-value cl 'description)
-	 (setf (slot-value cl 'description)
-	       (etypecase (slot-value cl 'description)
-		 (cons (car it))
-		 ((or string symbol) it))))
-
   (let ((*print-circle* nil))
-    (setf (documentation (class-name cl) 'class)
+    (setf (documentation cl 'type)
 	  (format nil "Hyperobject~A~A~A~A"
 		  (aif (user-name cl)
 		       (format nil ": ~A" it ""))
@@ -410,6 +482,7 @@
   (finalize-hyperlinks cl)
   (finalize-sql cl)
   (finalize-rules cl)
+  (finalize-class-slots cl)
   (finalize-documentation cl))
 
 
@@ -421,10 +494,10 @@
   (find name (class-slots cl) :key #'slot-definition-name))
 
 (defun hyperobject-class-user-name (obj)
-  (awhen (user-name (class-of obj))
-	 (if (consp it)
-	     (car it)
-	     it)))
+  (user-name (class-of obj)))
+
+(defun hyperobject-class-user-name-plural (obj)
+  (user-name-plural (class-of obj)))
 
 (defun hyperobject-class-subobjects (obj)
   (subobjects (class-of obj)))
@@ -437,3 +510,9 @@
   #+(or cmu sbcl) (reverse (class-slots (class-of obj)))
   #-(or cmu sbcl) (class-slots (class-of obj)))
 
+(defun all-subobjects (obj)
+  "Returns a list of all subobjects in an object"
+  (let ((so-list '()))
+    (dolist (subobj-obj (subobjects (class-of obj)) (nreverse so-list))
+      (dolist (so (funcall (name-slot subobj-obj) obj))
+        (push so so-list)))))