;;;; Purpose: High-level MySQL interface using UFFI
;;;; Date Started: Feb 2002
;;;;
-;;;; $Id$
+;;;; This file, part of CLSQL, is Copyright (c) 2002-2009 by Kevin M. Rosenberg
;;;;
;;;; CLSQL users are granted the rights to distribute and use this software
;;;; as governed by the terms of the Lisp Lesser GNU Public License
;;; Field conversion functions
-(defun result-field-names (num-fields res-ptr)
- (declare (fixnum num-fields))
- (let ((names '())
- (field-vec (mysql-fetch-fields res-ptr)))
- (dotimes (i num-fields)
- (declare (fixnum i))
- (let* ((field (uffi:deref-array field-vec '(:array mysql-field) i))
- (name (uffi:convert-from-foreign-string
- (uffi:get-slot-value field 'mysql-field 'mysql::name))))
- (push name names)))
+(defun result-field-names (res-ptr)
+ (let ((names '()))
+ (mysql-field-seek res-ptr 0)
+ (loop
+ (let ((field (mysql-fetch-field res-ptr)))
+ (when (uffi:null-pointer-p field) (return))
+ (push (uffi:convert-from-cstring (clsql-mysql-field-name field)) names)))
(nreverse names)))
-(defun make-type-list-for-auto (num-fields res-ptr)
- (declare (fixnum num-fields))
- (let ((new-types '())
- (field-vec (mysql-fetch-fields res-ptr)))
- (dotimes (i num-fields)
- (declare (fixnum i))
- (let* ((field (uffi:deref-array field-vec '(:array mysql-field) i))
- (flags (uffi:get-slot-value field 'mysql-field 'mysql::flags))
- (unsigned (plusp (logand flags 32)))
- (type (uffi:get-slot-value field 'mysql-field 'type)))
- (push
- (case type
- ((#.mysql-field-types#tiny
- #.mysql-field-types#short
- #.mysql-field-types#int24)
- (if unsigned
- :uint32
- :int32))
- (#.mysql-field-types#long
- (if unsigned
- :uint
- :int))
- (#.mysql-field-types#longlong
- (if unsigned
- :uint64
- :int64))
- ((#.mysql-field-types#double
- #.mysql-field-types#float
- #.mysql-field-types#decimal)
- :double)
- (otherwise
- t))
- new-types)))
+(defun make-type-list-for-auto (res-ptr)
+ (let ((new-types '()))
+ (mysql-field-seek res-ptr 0)
+ (loop
+ (let ((field (mysql-fetch-field res-ptr)))
+ (when (uffi:null-pointer-p field) (return))
+ (let* ((flags (clsql-mysql-field-flags field))
+ (unsigned (plusp (logand flags 32)))
+ (type (clsql-mysql-field-type field)))
+ (push
+ (case type
+ ((#.mysql-field-types#tiny
+ #.mysql-field-types#short
+ #.mysql-field-types#int24)
+ (if unsigned
+ :uint32
+ :int32))
+ (#.mysql-field-types#long
+ (if unsigned
+ :uint
+ :int))
+ (#.mysql-field-types#longlong
+ (if unsigned
+ :uint64
+ :int64))
+ ((#.mysql-field-types#double
+ #.mysql-field-types#float
+ #.mysql-field-types#decimal)
+ :double)
+ (otherwise
+ t))
+ new-types))))
(nreverse new-types)))
-(defun canonicalize-types (types num-fields res-ptr)
+(defun canonicalize-types (types res-ptr)
(when types
- (let ((auto-list (make-type-list-for-auto num-fields res-ptr)))
+ (let ((auto-list (make-type-list-for-auto res-ptr)))
(cond
((listp types)
(canonicalize-type-list types auto-list))
(defmethod database-initialize-database-type ((database-type (eql :mysql)))
t)
-(uffi:def-type mysql-mysql-ptr-def (* mysql-mysql))
+;;(uffi:def-type mysql-mysql-ptr-def (* mysql-mysql))
+;;(uffi:def-type mysql-mysql-res-ptr-def (* mysql-mysql-res))
+(uffi:def-type mysql-mysql-ptr-def mysql-mysql)
+(uffi:def-type mysql-mysql-res-ptr-def mysql-mysql-res)
(uffi:def-type mysql-row-def mysql-row)
-(uffi:def-type mysql-mysql-res-ptr-def (* mysql-mysql-res))
(defclass mysql-database (database)
((mysql-ptr :accessor database-mysql-ptr :initarg :mysql-ptr
:connection-spec connection-spec
:error-id (mysql-errno mysql-ptr)
:message (mysql-error-string mysql-ptr)))
- (let ((db
- (make-instance 'mysql-database
- :name (database-name-from-spec connection-spec
- database-type)
- :database-type :mysql
- :connection-spec connection-spec
+ (let* ((db
+ (make-instance 'mysql-database
+ :name (database-name-from-spec connection-spec
+ database-type)
+ :database-type :mysql
+ :connection-spec connection-spec
:server-info (uffi:convert-from-cstring
(mysql:mysql-get-server-info mysql-ptr))
:mysql-ptr mysql-ptr))
- (cmd "SET SESSION sql_mode='ANSI'"))
- (if (zerop (mysql-real-query mysql-ptr cmd (expression-length cmd)))
- db
- (progn
- (warn "Error setting ANSI mode for MySQL.")
- db))))
+ (cmd "SET SESSION sql_mode='ANSI'"))
+ (uffi:with-cstring (cmd-cs cmd)
+ (if (zerop (mysql-real-query mysql-ptr cmd-cs (expression-length cmd)))
+ db
+ (progn
+ (warn "Error setting ANSI mode for MySQL.")
+ db)))))
(when error-occurred (mysql-close mysql-ptr)))))))))
(defmethod database-query (query-expression (database mysql-database)
- result-types field-names)
+ result-types field-names)
(declare (optimize (speed 3) (safety 0) (debug 0) (space 0)))
(let ((mysql-ptr (database-mysql-ptr database)))
(uffi:with-cstring (query-native query-expression)
(if (zerop (mysql-real-query mysql-ptr query-native
- (expression-length query-expression)))
- (let ((res-ptr (mysql-use-result mysql-ptr)))
- (if res-ptr
- (unwind-protect
- (let ((num-fields (mysql-num-fields res-ptr)))
- (declare (fixnum num-fields))
- (setq result-types (canonicalize-types
- result-types num-fields
- res-ptr))
- (values
- (loop for row = (mysql-fetch-row res-ptr)
- for lengths = (mysql-fetch-lengths res-ptr)
- until (uffi:null-pointer-p row)
- collect
- (do* ((rlist (make-list num-fields))
- (i 0 (1+ i))
- (pos rlist (cdr pos)))
- ((= i num-fields) rlist)
- (declare (fixnum i))
- (setf (car pos)
- (convert-raw-field
- (uffi:deref-array row '(:array
- (* :unsigned-char))
- i)
- result-types i
- (uffi:deref-array lengths '(:array :unsigned-long)
- i)))))
- (when field-names
- (result-field-names num-fields res-ptr))))
- (mysql-free-result res-ptr))
- (error 'sql-database-data-error
- :database database
- :expression query-expression
- :error-id (mysql-errno mysql-ptr)
- :message (mysql-error-string mysql-ptr))))
- (error 'sql-database-data-error
- :database database
- :expression query-expression
- :error-id (mysql-errno mysql-ptr)
- :message (mysql-error-string mysql-ptr))))))
+ (expression-length query-expression)))
+ (let ((res-ptr (mysql-use-result mysql-ptr)))
+ (if (and res-ptr (not (uffi:null-pointer-p res-ptr)))
+ (unwind-protect
+ (let ((num-fields (mysql-num-fields res-ptr)))
+ (declare (fixnum num-fields))
+ (setq result-types (canonicalize-types
+ result-types res-ptr))
+ (values
+ (loop for row = (mysql-fetch-row res-ptr)
+ for lengths = (mysql-fetch-lengths res-ptr)
+ until (uffi:null-pointer-p row)
+ collect
+ (do* ((rlist (make-list num-fields))
+ (i 0 (1+ i))
+ (pos rlist (cdr pos)))
+ ((= i num-fields) rlist)
+ (declare (fixnum i))
+ (setf (car pos)
+ (convert-raw-field
+ (uffi:deref-array row '(:array
+ (* :unsigned-char))
+ i)
+ result-types i
+ (uffi:deref-array lengths '(:array :unsigned-long)
+ i)))))
+ (when field-names
+ (result-field-names res-ptr))))
+ (mysql-free-result res-ptr))
+ (unless (zerop (mysql-errno mysql-ptr))
+ ;;from http://dev.mysql.com/doc/refman/5.0/en/mysql-field-count.html
+ ;; if mysql_use_result or mysql_store_result return a null ptr,
+ ;; we use a mysql_errno check to see if it had a problem or just
+ ;; was a query without a result. If no error, just return nil.
+ (error 'sql-database-data-error
+ :database database
+ :expression query-expression
+ :error-id (mysql-errno mysql-ptr)
+ :message (mysql-error-string mysql-ptr)))))
+ (error 'sql-database-data-error
+ :database database
+ :expression query-expression
+ :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)
:full-set full-set
:types
(canonicalize-types
- result-types num-fields
- res-ptr))))
+ result-types res-ptr))))
(if full-set
(values result-set
num-fields
(defmethod database-list (connection-spec (type (eql :mysql)))
(destructuring-bind (host name user password &optional port) connection-spec
- (declare (ignore name))
- (let ((database (database-connect (list host "mysql" user password port) type)))
+ (let ((database (database-connect (list host (or name "mysql")
+ user password port) type)))
(unwind-protect
(progn
(setf (slot-value database 'clsql-sys::state) :open)
#+(or mysql-client-v4.1 mysql-client-v5) t
#-(or mysql-client-v4.1 mysql-client-v5) nil)
+(defmethod db-type-has-auto-increment? ((db-type (eql :mysql)))
+ t)
+
(when (clsql-sys:database-type-library-loaded :mysql)
(clsql-sys:initialize-database-type :database-type :mysql))
-
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