(database-disconnect database)
(setf (slot-value database 'clsql-sys::state) :closed))))))
+
+;;; Prepared statements
+
+(defclass mysql-stmt ()
+ ((database :initarg :database :reader database)
+ (stmt :initarg :stmt :accessor stmt)
+ (input-bind :initarg :input-bind :reader input-bind)
+ (output-bind :initarg :output-bind :reader output-bind)
+ (types :initarg :types :reader types)
+ (result-set :initarg :result-set :reader result-set)
+ (num-fields :initarg :num-fields :reader num-fields)
+ (field-names :initarg :field-names :accessor stmt-field-names)
+ (length-ptr :initarg :length-ptr :reader length-ptr)
+ (is-null-ptr :initarg :is-null-ptr :reader is-null-ptr)
+ (result-types :initarg :result-types :reader result-types)))
+
+(defun clsql-type->mysql-type (type)
+ (cond
+ ((in type :null) mysql-field-types#null)
+ ((in type :int :integer) mysql-field-types#long)
+ ((in type :short) mysql-field-types#short)
+ ((in type :bigint) mysql-field-types#longlong)
+ ((in type :float :double :number) mysql-field-types#double)
+ ((and (consp type) (in (car type) :char :string :varchar)) mysql-field-types#var-string)
+ (t
+ (error 'sql-user-error
+ :message
+ (format nil "Unknown clsql type ~A." type)))))
+
+#+mysql-client-v4.1
+(defmethod database-prepare (sql-stmt types (database mysql-database) result-types field-names)
+ (let* ((mysql-ptr (database-mysql-ptr database))
+ (stmt (mysql-stmt-init mysql-ptr)))
+ (when (uffi:null-pointer-p stmt)
+ (error 'sql-database-error
+ :error-id (mysql-errno mysql-ptr)
+ :message (mysql-error-string mysql-ptr)))
+
+ (uffi:with-cstring (native-query sql-stmt)
+ (unless (zerop (mysql-stmt-prepare stmt native-query (length sql-stmt)))
+ (error 'sql-database-error
+ :error-id (mysql-errno mysql-ptr)
+ :message (mysql-error-string mysql-ptr))))
+
+ (unless (= (mysql-stmt-param-count stmt) (length types))
+ (error 'sql-database-error
+ :message
+ (format nil "Mysql param count (~D) does not match number of types (~D)"
+ (mysql-stmt-param-count stmt) (length types))))
+
+ (let ((rs (mysql-stmt-result-metadata stmt)))
+ (when (uffi:null-pointer-p rs)
+ (error 'sql-database-error
+ :message "NULL result metadata"))
+
+ (let* ((field-vec (mysql-fetch-fields rs))
+ (num-fields (mysql-num-fields rs))
+ (input-bind (uffi:allocate-foreign-object mysql-bind (length types)))
+ (output-bind (uffi:allocate-foreign-object mysql-bind num-fields))
+ (length-ptr (uffi:allocate-foreign-object :unsigned-long num-fields))
+ (is-null-ptr (uffi:allocate-foreign-object :byte num-fields))
+ (mysql-types (mapcar 'clsql-type->mysql-type types)))
+
+ (dotimes (i (length types))
+ (let* ((binding (uffi:deref-array input-bind '(:array mysql-bind) i)))
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer-type)
+ (nth i mysql-types))
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer-length) 0)))
+
+ (dotimes (i num-fields)
+ (declare (fixnum i))
+ (let* ((field (uffi:deref-array field-vec '(:array mysql-field) i))
+ (type (uffi:get-slot-value field 'mysql-field 'type))
+ (binding (uffi:deref-array output-bind '(:array mysql-bind) i)))
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer-type) type)
+
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer-length) 0)
+ (setf (uffi:get-slot-value binding 'mysql-bind 'is-null)
+ (+ i (uffi:pointer-address is-null-ptr)))
+ (setf (uffi:get-slot-value binding 'mysql-bind 'length)
+ (+ (* i 8) (uffi:pointer-address length-ptr)))
+
+ (case type
+ ((#.mysql-field-types#var-string #.mysql-field-types#string
+ #.mysql-field-types#tiny-blob #.mysql-field-types#blob
+ #.mysql-field-types#medium-blob #.mysql-field-types#long-blob)
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer-length) 1024)
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer)
+ (uffi:allocate-foreign-object :unsigned-char 1024)))
+ (#.mysql-field-types#tiny
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer)
+ (uffi:allocate-foreign-object :byte)))
+ (#.mysql-field-types#short
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer)
+ (uffi:allocate-foreign-object :short)))
+ (#.mysql-field-types#long
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer)
+ ;; segfaults if supply :int on amd64
+ (uffi:allocate-foreign-object :long)))
+ #+64bit
+ (#.mysql-field-types#longlong
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer)
+ (uffi:allocate-foreign-object :long)))
+ (#.mysql-field-types#float
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer)
+ (uffi:allocate-foreign-object :float)))
+ (#.mysql-field-types#double
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer)
+ (uffi:allocate-foreign-object :double)))
+ ((#.mysql-field-types#time #.mysql-field-types#date
+ #.mysql-field-types#datetime #.mysql-field-types#timestamp)
+ (uffi:allocate-foreign-object 'mysql-time))
+ (t
+ (error "mysql type ~D not supported." type)))))
+
+ (unless (zerop (mysql-stmt-bind-result stmt output-bind))
+ (error 'sql-database-error
+ :error-id (mysql-stmt-errno stmt)
+ :message (uffi:convert-from-cstring
+ (mysql-stmt-error stmt))))
+
+ (make-instance 'mysql-stmt
+ :database database
+ :stmt stmt
+ :num-fields num-fields
+ :input-bind input-bind
+ :output-bind output-bind
+ :result-set rs
+ :result-types result-types
+ :length-ptr length-ptr
+ :is-null-ptr is-null-ptr
+ :types mysql-types
+ :field-names field-names)))))
+
+#+mysql-client-v4.1
+(defmethod database-bind-parameter ((stmt mysql-stmt) position value)
+ ;; FIXME: will need to allocate bind structure. This should probably be
+ ;; done in C since the API is not mature and may change
+ (let ((binding (uffi:deref-array (input-bind stmt) '(:array mysql-bind) (1- position)))
+ (type (nth (1- position) (types stmt))))
+ (setf (uffi:get-slot-value binding 'mysql-bind 'length) 0)
+ (cond
+ ((null value)
+ (setf (uffi:deref-array (is-null-ptr stmt) '(:array :byte) (1- position)) 1))
+ (t
+ (setf (uffi:deref-array (is-null-ptr stmt) '(:array :byte) (1- position)) 0)
+ (case type
+ (#.mysql-field-types#long
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer) value))
+ (t
+ (warn "Unknown input bind type ~D." type))
+ )))))
+
+#+mysql-client-v4.1
+(defmethod database-run-prepared ((stmt mysql-stmt))
+ (print 'a1)
+ (unless (zerop (mysql-stmt-bind-param (stmt stmt) (input-bind stmt)))
+ (error 'sql-database-error
+ :error-id (mysql-stmt-errno (stmt stmt))
+ :message (uffi:convert-from-cstring
+ (mysql-stmt-error (stmt stmt)))))
+ (print 'a2)
+ (unless (zerop (mysql-stmt-execute (stmt stmt)))
+ (error 'sql-database-error
+ :error-id (mysql-stmt-errno (stmt stmt))
+ :message (uffi:convert-from-cstring
+ (mysql-stmt-error (stmt stmt)))))
+ (print 'a3)
+ (unless (zerop (mysql-stmt-store-result (stmt stmt)))
+ (error 'sql-database-error
+ :error-id (mysql-stmt-errno (stmt stmt))
+ :message (uffi:convert-from-cstring
+ (mysql-stmt-error (stmt stmt)))))
+ (database-fetch-prepared-rows stmt))
+
+#+mysql-client-v4.1
+(defun database-fetch-prepared-rows (stmt)
+ (do ((rc (mysql-stmt-fetch (stmt stmt)) (mysql-stmt-fetch (stmt stmt)))
+ (num-fields (num-fields stmt))
+ (rows '()))
+ ((not (zerop rc)) (nreverse rows))
+ (push
+ (loop for i from 0 below num-fields
+ collect
+ (let ((is-null
+ (not (zerop (uffi:ensure-char-integer
+ (uffi:deref-array (is-null-ptr stmt) '(:array :byte) i))))))
+ (unless is-null
+ (let* ((bind (uffi:deref-array (output-bind stmt) '(:array mysql-bind) i))
+ (type (uffi:get-slot-value bind 'mysql-bind 'buffer-type))
+ (buffer (uffi:get-slot-value bind 'mysql-bind 'buffer)))
+ (case type
+ ((#.mysql-field-types#var-string #.mysql-field-types#string
+ #.mysql-field-types#tiny-blob #.mysql-field-types#blob
+ #.mysql-field-types#medium-blob #.mysql-field-types#long-blob)
+ (uffi:convert-from-foreign-string buffer))
+ (#.mysql-field-types#tiny
+ (uffi:ensure-char-integer
+ (uffi:deref-pointer buffer :byte)))
+ (#.mysql-field-types#short
+ (uffi:deref-pointer buffer :short))
+ (#.mysql-field-types#long
+ (uffi:deref-pointer buffer :int))
+ #+64bit
+ (#.mysql-field-types#longlong
+ (uffi:deref-pointer buffer :long))
+ (#.mysql-field-types#float
+ (uffi:deref-pointer buffer :float))
+ (#.mysql-field-types#double
+ (uffi:deref-pointer buffer :double))
+ ((#.mysql-field-types#time #.mysql-field-types#date
+ #.mysql-field-types#datetime #.mysql-field-types#timestamp)
+ (let ((year (uffi:get-slot-value buffer 'mysql-time 'mysql::year))
+ (month (uffi:get-slot-value buffer 'mysql-time 'mysql::month))
+ (day (uffi:get-slot-value buffer 'mysql-time 'mysql::day))
+ (hour (uffi:get-slot-value buffer 'mysql-time 'mysql::hour))
+ (minute (uffi:get-slot-value buffer 'mysql-time 'mysql::minute))
+ (second (uffi:get-slot-value buffer 'mysql-time 'mysql::second)))
+ (db-timestring
+ (make-time :year year :month month :day day :hour hour
+ :minute minute :second second))))
+ (t
+ (list type)))))))
+ rows)))
+
+
+
+
+#+mysql-client-v4.1
+(defmethod database-free-prepared ((stmt mysql-stmt))
+ (with-slots (stmt) stmt
+ (mysql-stmt-close stmt))
+ )
+
+
;;; Database capabilities
(defmethod db-type-use-column-on-drop-index? ((db-type (eql :mysql)))
t)
(defmethod db-type-has-views? ((db-type (eql :mysql)))
- ;; MySQL 4.1 will apparently have views, need to check *mysql-client-info*
- nil)
+ #+mysql-client-v5.1 t
+ #-mysql-client-v5.1 nil)
(defmethod db-type-has-subqueries? ((db-type (eql :mysql)))
- ;; MySQL 4.1 will apparently have subqueries, need to check *mysql-client-info*
- nil)
+ #+mysql-client-v4.1 t
+ #-mysql-client-v4.1 nil)
(defmethod db-type-has-boolean-where? ((db-type (eql :mysql)))
- nil)
+ #+mysql-client-v4.1 t
+ #-mysql-client-v4.1 nil)
(defmethod db-type-has-union? ((db-type (eql :mysql)))
(not (eql (schar mysql::*mysql-client-info* 0) #\3)))
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