:initform nil)
(base-type
:accessor meta-model.base-type
- :initform 'clsql)))
+ :initarg :base-type
+ :initform :clsql)))
(defmethod meta-model.metadata ((self (eql nil)))
nil)
+(defmethod meta-model.metadata ((self symbol))
+ (meta-model.metadata (make-instance self)))
+
(defun gen-supers (supers)
(let (subclassp)
(dolist (x supers)
(cons 'meta-model-class supers))))
(defmethod %def-meta-model ((base-type t) name supers slots &rest options)
- `(defclass ,name ,(gen-supers supers)
- ()
- (:default-initargs :metadata ',slots)))
+ `(eval-when (:compile-toplevel :load-toplevel :execute)
+ (defclass ,name ,(gen-supers supers)
+ ()
+ (:default-initargs :metadata ',slots :base-type ,base-type))))
(defmacro def-meta-model (name supers slots &rest options)
- `(progn
+ `(eval-when (:compile-toplevel :load-toplevel :execute)
(when (not (member (quote ,name) *meta-models*))
(setf *meta-models* (cons (quote ,name) *meta-models*)))
(let ((class ,(%def-meta-model (cadr (or (assoc :base-type options) '(t t))) name supers slots options)))
class)))
-(defgeneric def-base-class-expander (model base-type name args))
-
+(defgeneric def-base-type-class-expander (base-type model name args))
-(defmacro def-base-class (name (model) &rest args)
- (let ((i (make-instance model)))
- `(progn
- ,(def-base-class-expander i :clsql name args)
- (defmethod meta-model.metadata ((m ,name))
- ',(meta-model.metadata i)))))
-
+(defmethod def-base-class-expander ((model t) name args)
+ (def-base-type-class-expander (meta-model.base-type model) model name args))
(defmethod base-class-name ((model t))
(class-name (class-of (meta-model.instance model))))
-
-
(defmethod view-class-metadata ((model t))
+ "
+This is what meta-model.metadata used to be called,
+most of the below functions expect this method to exist"
(meta-model.metadata model))
(defun list-item-helper (type view &key (ret-fun #'car))
(list-item-helper
type view
:ret-fun #'rfun)))
- (append (lister :key) (lister :base))))
+ (append (lister :key) (lister :base) (lister nil))))
(defmethod slot-type ((view t) slot)
"returns the CLSQL type of SLOT"
:test-key :target-slot
:return-full t)))
-(defmethod explode-foreign-key ((model clsql:standard-db-object) slot)
+(defmethod explode-foreign-key ((model clsql:standard-db-object) slot &key (createp t))
"returns the clsql view-class joined on SLOT"
(dolist (s (list-join-attributes model))
(when (equal (getf (cdr s) :home-key) slot)
- (return-from explode-foreign-key (slot-value model (car s))))))
+ (let* ((fkey (getf (cdr s) :foreign-key))
+ (new (sync-instance (make-instance (getf (cdr s) :join-class))))
+ (val (or (slot-value model (car s))
+ (progn
+ (when createp
+ (setf
+ (slot-value model slot)
+ (slot-value new fkey))
+ (sync-instance model)
+ (slot-value model (car s)))))))
+
+ (return-from explode-foreign-key
+ (values val fkey))))))
(defun find-join-helper (foreign-key)
(lambda (class slot)
"returns the SLOT in the foreign VIEW-CLASS that joins with FOREIGN-KEY"
(car (list-relations-helper view (find-join-helper foreign-key) :return-key :foreign-key)))
+(defmethod explode-has-many ((view t) join-slot)
+ "returns the class of the join as the primary value, the second and third value is the home key and the foreign key"
+ (let ((att (assoc join-slot (list-join-attributes view))))
+ (values (getf (cdr att) :join-class)
+ (getf (cdr att) :home-key)
+ (getf (cdr att) :foreign-key))))
+
+(defgeneric expr-= (instance slot-name value)
+ (:documentation "Create search expression for appropriate backend."))
+
+(defgeneric expr-> (instance slot-name value)
+ (:documentation "Create search expression for appropriate backend."))
+
+(defgeneric expr-< (instance slot-name value)
+ (:documentation "Create search expression for appropriate backend."))
+
+(defgeneric expr-ends-with (instance slot-name value)
+ (:documentation "Create search expression for appropriate backend."))
+
+(defgeneric expr-starts-with (instance slot-name value)
+ (:documentation "Create search expression for appropriate backend."))
+
+(defgeneric expr-contains (instance slot-name value)
+ (:documentation "Create search expression for appropriate backend."))
+
+(defgeneric expr-and (instance &rest args)
+ (:documentation "Create search expression for appropriate backend."))
+
+(defgeneric expr-or (instance &rest args)
+ (:documentation "Create search expression for appropriate backend."))
+
+(defgeneric expr-not (instance &rest args)
+ (:documentation "Create search expression for appropriate backend."))
+
+(defgeneric select-instances (instance &rest args)
+ (:documentation "Select instances in backend dependent way"))
+
+(defgeneric prepare-slot-name-for-select (instance slot-name)
+ (:method (i s) s))
+
+(defmacro def-compare-expr (instance-type name expr &key value-format)
+ `(defmethod ,name ((instance ,instance-type) slot-name value)
+ (declare (ignore instance))
+ (,expr (prepare-slot-name-for-select instance slot-name) ,(typecase value-format
+ (null 'value)
+ (string `(format nil ,value-format value))
+ (t `(,value-format value))))))
+(defmacro def-logical-expr (instance-type name expr)
+ `(defmethod ,name ((instance ,instance-type) &rest args)
+ (declare (ignore instance))
+ (apply ,expr args)))
\ No newline at end of file