X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=sql%2Fmetaclasses.lisp;h=d6d92b85ce3595aef251d63779212c3fe69753b1;hb=f69c5bfba59d54628f9a08b83413ec3df3c92432;hp=34e6c696cd9e1a8af59be50d93989abc51e7fe0d;hpb=e3f355aa2b125569097bd7108fbbd14daa23e7aa;p=clsql.git diff --git a/sql/metaclasses.lisp b/sql/metaclasses.lisp index 34e6c69..d6d92b8 100644 --- a/sql/metaclasses.lisp +++ b/sql/metaclasses.lisp @@ -37,7 +37,7 @@ ;; ------------------------------------------------------------ ;; metaclass: view-class -(defclass view-metaclass (standard-class) +(defclass standard-db-class (standard-class) ((view-table :accessor view-table :initarg :view-table) @@ -45,10 +45,6 @@ :accessor object-definition :initarg :definition :initform nil) - (version - :accessor object-version - :initarg :version - :initform 0) (key-slots :accessor key-slots :initform nil) @@ -58,94 +54,19 @@ :initform nil)) (:documentation "VIEW-CLASS metaclass.")) -#+lispworks -(defmacro push-on-end (value location) - `(setf ,location (nconc ,location (list ,value)))) - -;; As Heiko Kirscke (author of PLOB!) would say: !@##^@%! Lispworks! -#+lispworks -(defconstant +extra-slot-options+ '(:column :db-kind :db-reader :nulls-ok - :db-writer :db-type :db-info)) - -#+lispworks -(define-setf-expander assoc (key alist &environment env) - (multiple-value-bind (temps vals stores store-form access-form) - (get-setf-expansion alist env) - (let ((new-value (gensym "NEW-VALUE-")) - (keyed (gensym "KEYED-")) - (accessed (gensym "ACCESSED-")) - (store-new-value (car stores))) - (values (cons keyed temps) - (cons key vals) - `(,new-value) - `(let* ((,accessed ,access-form) - (,store-new-value (assoc ,keyed ,accessed))) - (if ,store-new-value - (rplacd ,store-new-value ,new-value) - (progn - (setq ,store-new-value - (acons ,keyed ,new-value ,accessed)) - ,store-form)) - ,new-value) - `(assoc ,new-value ,access-form))))) - -#+lispworks -(defmethod clos::canonicalize-defclass-slot :around - ((prototype view-metaclass) slot) - "\\lw\\ signals an error on unknown slot options; so this method -removes any extra allowed options before calling the default method -and returns the canonicalized extra options concatenated to the result -of the default method. The extra allowed options are the value of the -\\fcite{+extra-slot-options+}." - (let ((extra-slot-options ()) - (rest-options ()) - (result ())) - (do ((olist (cdr slot) (cddr olist))) - ((null olist)) - (let ((option (car olist))) - (cond - ((find option +extra-slot-options+) - ;;(push (cons option (cadr olist)) extra-slot-options)) - (setf (assoc option extra-slot-options) (cadr olist))) - (t - (push (cadr olist) rest-options) - (push (car olist) rest-options))))) - (setf result (call-next-method prototype (cons (car slot) rest-options))) - (dolist (option extra-slot-options) - (push-on-end (car option) result) - (push-on-end `(quote ,(cdr option)) result)) - result)) +;;; Lispworks 4.2 and before requires special processing of extra slot and class options -#+lispworks -(defconstant +extra-class-options+ '(:base-table :version :schemas)) - -#+lispworks -(defmethod clos::canonicalize-class-options :around - ((prototype view-metaclass) class-options) - "\\lw\\ signals an error on unknown class options; so this method -removes any extra allowed options before calling the default method -and returns the canonicalized extra options concatenated to the result -of the default method. The extra allowed options are the value of the -\\fcite{+extra-class-options+}." - (let ((extra-class-options nil) - (rest-options ()) - (result ())) - (dolist (o class-options) - (let ((option (car o))) - (cond - ((find option +extra-class-options+) - ;;(push (cons option (cadr o)) extra-class-options)) - (setf (assoc option extra-class-options) (cadr o))) - (t - (push o rest-options))))) - (setf result (call-next-method prototype rest-options)) - (dolist (option extra-class-options) - (push-on-end (car option) result) - (push-on-end `(quote ,(cdr option)) result)) - result)) +(defvar +extra-slot-options+ '(:column :db-kind :db-reader :void-value :db-constraints + :db-writer :db-info)) +(defvar +extra-class-options+ '(:base-table)) + +(dolist (slot-option +extra-slot-options+) + (process-slot-option standard-db-class slot-option)) +(dolist (class-option +extra-class-options+) + (process-class-option standard-db-class class-option)) -(defmethod validate-superclass ((class view-metaclass) +(defmethod validate-superclass ((class standard-db-class) (superclass standard-class)) t) @@ -155,7 +76,7 @@ of the default method. The extra allowed options are the value of the ((typep arg 'sql-ident) (slot-value arg 'name)) ((stringp arg) - (intern (string-upcase arg))))) + (intern (symbol-name-default-case arg))))) (defun column-name-from-arg (arg) (cond ((symbolp arg) @@ -163,7 +84,7 @@ of the default method. The extra allowed options are the value of the ((typep arg 'sql-ident) (slot-value arg 'name)) ((stringp arg) - (intern (string-upcase arg))))) + (intern (symbol-name-default-case arg))))) (defun remove-keyword-arg (arglist akey) @@ -178,13 +99,13 @@ of the default method. The extra allowed options are the value of the (pop-arg mylist)) newlist)) -(defmethod initialize-instance :around ((class view-metaclass) +(defmethod initialize-instance :around ((class standard-db-class) &rest all-keys &key direct-superclasses base-table - schemas version qualifier + qualifier &allow-other-keys) (let ((root-class (find-class 'standard-db-object nil)) - (vmc (find-class 'view-metaclass))) + (vmc (find-class 'standard-db-class))) (setf (view-class-qualifier class) (car qualifier)) (if root-class @@ -203,20 +124,16 @@ of the default method. The extra allowed options are the value of the (car base-table) base-table)) (class-name class))))) - (setf (object-version class) version) - (mapc (lambda (schema) - (pushnew (class-name class) (gethash schema *object-schemas*))) - (if (listp schemas) schemas (list schemas))) (register-metaclass class (nth (1+ (position :direct-slots all-keys)) all-keys)))) -(defmethod reinitialize-instance :around ((class view-metaclass) +(defmethod reinitialize-instance :around ((class standard-db-class) &rest all-keys - &key base-table schemas version + &key base-table direct-superclasses qualifier &allow-other-keys) (let ((root-class (find-class 'standard-db-object nil)) - (vmc (find-class 'view-metaclass))) + (vmc (find-class 'standard-db-class))) (setf (view-table class) (table-name-from-arg (sql-escape (or (and base-table (if (listp base-table) @@ -235,10 +152,6 @@ of the default method. The extra allowed options are the value of the direct-superclasses) (remove-keyword-arg all-keys :direct-superclasses))) (call-next-method))) - (setf (object-version class) version) - (mapc (lambda (schema) - (pushnew (class-name class) (gethash schema *object-schemas*))) - (if (listp schemas) schemas (list schemas))) (register-metaclass class (nth (1+ (position :direct-slots all-keys)) all-keys))) @@ -284,9 +197,9 @@ of the default method. The extra allowed options are the value of the (ordered-class-slots class))))) #+(or allegro openmcl) -(defmethod finalize-inheritance :after ((class view-metaclass)) +(defmethod finalize-inheritance :after ((class standard-db-class)) ;; KMRL for slots without a type set, openmcl sets type-predicate to ccl:false - ;; for view-metaclass + ;; for standard-db-class #+openmcl (mapcar #'(lambda (s) @@ -374,13 +287,12 @@ column definition in the database.") :initform nil :documentation "A single constraint or list of constraints for this column") - (nulls-ok - :accessor view-class-slot-nulls-ok - :initarg :nulls-ok + (void-value + :accessor view-class-slot-void-value + :initarg :void-value :initform nil :documentation - "If t, all sql NULL values retrieved from the database become nil; if nil, -all NULL values retrieved are converted by DATABASE-NULL-VALUE") + "Value to store is the SQL value is NULL. Default is NIL.") (db-info :accessor view-class-slot-db-info :initarg :db-info @@ -437,13 +349,13 @@ all NULL values retrieved are converted by DATABASE-NULL-VALUE") standard-effective-slot-definition) ()) -(defmethod direct-slot-definition-class ((class view-metaclass) +(defmethod direct-slot-definition-class ((class standard-db-class) #+kmr-normal-dsdc &rest initargs) (declare (ignore initargs)) (find-class 'view-class-direct-slot-definition)) -(defmethod effective-slot-definition-class ((class view-metaclass) +(defmethod effective-slot-definition-class ((class standard-db-class) #+kmr-normal-esdc &rest initargs) (declare (ignore initargs)) @@ -455,7 +367,7 @@ all NULL values retrieved are converted by DATABASE-NULL-VALUE") (class-precedence-list class)) #-(or sbcl cmu) -(defmethod compute-slots ((class view-metaclass)) +(defmethod compute-slots ((class standard-db-class)) "Need to sort order of class slots so they are the same across implementations." (let ((slots (call-next-method)) @@ -506,7 +418,7 @@ which does type checking before storing a value in a slot." ;; what kind of database value (if any) is stored there, generates and ;; verifies the column name. -(defmethod compute-effective-slot-definition ((class view-metaclass) +(defmethod compute-effective-slot-definition ((class standard-db-class) #+kmr-normal-cesd slot-name direct-slots) #+kmr-normal-cesd (declare (ignore slot-name)) @@ -530,8 +442,8 @@ which does type checking before storing a value in a slot." (when (slot-boundp sd 'db-type) (view-class-slot-db-type sd))) - (setf (slot-value slotd 'nulls-ok) - (view-class-slot-nulls-ok sd)) + (setf (slot-value slotd 'void-value) + (view-class-slot-void-value sd)) ;; :db-kind slot value defaults to :base (store slot value in ;; database)