;;;; *************************************************************************
(defpackage #:clsql-mysql
- (:use #:common-lisp #:clsql-base #:mysql #:clsql-uffi)
+ (:use #:common-lisp #:clsql-sys #:mysql #:clsql-uffi)
(:export #:mysql-database)
(:documentation "This is the CLSQL interface to MySQL."))
(let ((mysql-ptr (mysql-init (uffi:make-null-pointer 'mysql-mysql)))
(socket nil))
(if (uffi:null-pointer-p mysql-ptr)
- (error 'clsql-connect-error
+ (error 'sql-connection-error
:database-type database-type
:connection-spec connection-spec
- :errno (mysql-errno mysql-ptr)
- :error (mysql-error-string mysql-ptr))
+ :error-id (mysql-errno mysql-ptr)
+ :message (mysql-error-string mysql-ptr))
(uffi:with-cstrings ((host-native host)
(user-native user)
(password-native password)
db-native 0 socket-native 0))
(progn
(setq error-occurred t)
- (error 'clsql-connect-error
+ (error 'sql-connection-error
:database-type database-type
:connection-spec connection-spec
- :errno (mysql-errno mysql-ptr)
- :error (mysql-error-string mysql-ptr)))
+ :error-id (mysql-errno mysql-ptr)
+ :message (mysql-error-string mysql-ptr)))
(make-instance 'mysql-database
:name (database-name-from-spec connection-spec
database-type)
(when field-names
(result-field-names num-fields res-ptr))))
(mysql-free-result res-ptr))
- (error 'clsql-sql-error
+ (error 'sql-database-data-error
:database database
:expression query-expression
- :errno (mysql-errno mysql-ptr)
- :error (mysql-error-string mysql-ptr))))
- (error 'clsql-sql-error
+ :error-id (mysql-errno mysql-ptr)
+ :message (mysql-error-string mysql-ptr))))
+ (error 'sql-database-data-error
:database database
:expression query-expression
- :errno (mysql-errno mysql-ptr)
- :error (mysql-error-string mysql-ptr))))))
+ :error-id (mysql-errno mysql-ptr)
+ :message (mysql-error-string mysql-ptr))))))
(defmethod database-execute-command (sql-expression (database mysql-database))
(uffi:with-cstring (sql-native sql-expression)
(if (zerop (mysql-real-query mysql-ptr sql-native
(length sql-expression)))
t
- (error 'clsql-sql-error
+ (error 'sql-database-data-error
:database database
:expression sql-expression
- :errno (mysql-errno mysql-ptr)
- :error (mysql-error-string mysql-ptr))))))
+ :error-id (mysql-errno mysql-ptr)
+ :message (mysql-error-string mysql-ptr))))))
(defstruct mysql-result-set
(mysql-num-rows res-ptr))
(values result-set
num-fields)))
- (error 'clsql-sql-error
+ (error 'sql-database-data-error
:database database
:expression query-expression
- :errno (mysql-errno mysql-ptr)
- :error (mysql-error-string mysql-ptr))))
- (error 'clsql-sql-error
+ :error-id (mysql-errno mysql-ptr)
+ :message (mysql-error-string mysql-ptr))))
+ (error 'sql-database-data-error
:database database
:expression query-expression
- :errno (mysql-errno mysql-ptr)
- :error (mysql-error-string mysql-ptr))))))
+ :error-id (mysql-errno mysql-ptr)
+ :message (mysql-error-string mysql-ptr))))))
(defmethod database-dump-result-set (result-set (database mysql-database))
(mysql-free-result (mysql-result-set-res-ptr result-set))
(defmethod database-create (connection-spec (type (eql :mysql)))
(destructuring-bind (host name user password) connection-spec
(multiple-value-bind (output status)
- (clsql-base:command-output "mysqladmin create -u~A -p~A -h~A ~A"
+ (clsql-sys:command-output "mysqladmin create -u~A -p~A -h~A ~A"
user password
(if host host "localhost")
name)
(if (or (not (eql 0 status))
(and (search "failed" output) (search "error" output)))
- (error 'clsql-access-error
- :connection-spec connection-spec
- :database-type type
- :error
- (format nil "database-create failed: ~A" output))
- t))))
+ (error 'sql-database-error
+ :message
+ (format nil "mysql database creation failed with connection-spec ~A."
+ connection-spec))
+ t))))
(defmethod database-destroy (connection-spec (type (eql :mysql)))
(destructuring-bind (host name user password) connection-spec
(multiple-value-bind (output status)
- (clsql-base:command-output "mysqladmin drop -f -u~A -p~A -h~A ~A"
+ (clsql-sys:command-output "mysqladmin drop -f -u~A -p~A -h~A ~A"
user password
(if host host "localhost")
name)
(if (or (not (eql 0 status))
(and (search "failed" output) (search "error" output)))
- (error 'clsql-access-error
- :connection-spec connection-spec
- :database-type type
- :error
- (format nil "database-destroy failed: ~A" output))
+ (error 'sql-database-error
+ :message
+ (format nil "mysql database deletion failed with connection-spec ~A."
+ connection-spec))
t))))
(defmethod database-probe (connection-spec (type (eql :mysql)))
(let ((database (database-connect (list host "mysql" user password) type)))
(unwind-protect
(progn
- (setf (slot-value database 'clsql-base::state) :open)
+ (setf (slot-value database 'clsql-sys::state) :open)
(mapcar #'car (database-query "show databases" database :auto nil)))
(progn
(database-disconnect database)
- (setf (slot-value database 'clsql-base::state) :closed))))))
+ (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)
+ (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 :varchar)) mysql-field-types#var-string)
+ (t
+ (error 'sql-user-error
+ :message
+ (format nil "Unknown clsql type ~A." type)))))
+
+(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"))
+ (make-instance 'mysql-stmt
+ :database database
+ :stmt stmt
+ :num-fields (mysql-num-fields rs)
+ :input-bind (uffi:allocate-foreign-object mysql-bind (length types))
+ :output-bind (uffi:allocate-foreign-object mysql-bind (mysql-num-fields rs))
+ :result-set rs
+ :result-types result-types
+ :types (mapcar 'clsql-type->mysql-type types)
+ :field-names field-names))))
+
+(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:get-slot-value binding 'mysql-bind 'is-null) 1))
+ (t
+ (setf (uffi:get-slot-value binding 'mysql-bind 'is-null) 0)
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer-type) type)
+ (case type
+ (#.mysql-field-types#long
+ (let ((ptr (uffi:allocate-foreign-object :long)))
+ (setf (uffi:deref-pointer ptr :long) value)
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer) ptr)))
+ )))))
+
+(defmethod database-run-prepared ((stmt mysql-stmt))
+ (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)))))
+ (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)))))
+ (let ((field-vec (mysql-fetch-fields (result-set stmt))))
+ (dotimes (i (num-fields (result-set stmt)))
+ (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 stmt) '(:array mysql-bind) i)))
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer-type) type)
+ (case type
+ (#.mysql-field-types#var-string
+ (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)))
+ (t
+ (setf (uffi:get-slot-value binding 'mysql-bind 'buffer-length) 0))))))
+ (unless (zerop (mysql-stmt-bind-result (stmt stmt) (output-bind stmt)))
+ (error 'sql-database-error
+ :error-id (mysql-stmt-errno (stmt stmt))
+ :message (uffi:convert-from-cstring
+ (mysql-stmt-error (stmt stmt))))))
+
+
+(defmethod database-free-prepared ((stmt mysql-stmt))
+ (with-slots (stmt) stmt
+ (mysql-stmt-close stmt))
+ )
+
;;; Database capabilities
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)
+(defmethod db-type-has-union? ((db-type (eql :mysql)))
+ (not (eql (schar mysql::*mysql-client-info* 0) #\3)))
+
(defmethod db-type-transaction-capable? ((db-type (eql :mysql)) database)
(let ((tuple (car (database-query "SHOW VARIABLES LIKE 'HAVE_INNODB'" database :auto nil))))
(and tuple (string-equal "YES" (second tuple)))))
-(when (clsql-base:database-type-library-loaded :mysql)
- (clsql-base:initialize-database-type :database-type :mysql))
+(defmethod db-type-has-prepared-stmt? ((db-type (eql :mysql)))
+ #+mysql-client-v4.1 t
+ #-mysql-client-v4.1 nil)
+
+(when (clsql-sys:database-type-library-loaded :mysql)
+ (clsql-sys:initialize-database-type :database-type :mysql))
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