;;;; Purpose: High-level MySQL interface using UFFI
;;;; Date Started: Feb 2002
;;;;
-;;;; This file, part of CLSQL, is Copyright (c) 2002-2009 by Kevin M. Rosenberg
+;;;; This file, part of CLSQL, is Copyright (c) 2002-2010 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
(defpackage #:clsql-mysql
(:use #:common-lisp #:clsql-sys #:mysql #:clsql-uffi)
(:export #:mysql-database)
+ (:import-from :clsql-sys
+ :escaped :unescaped :combine-database-identifiers
+ :escaped-database-identifier :unescaped-database-identifier :database-identifier
+ :%sequence-name-to-table :%table-name-to-sequence-name)
(:documentation "This is the CLSQL interface to MySQL."))
(in-package #:clsql-mysql)
-;; if we have :sb-unicode, UFFI will treat :cstring as a UTF-8 string
-(defun expression-length (query-expression)
- (length #+sb-unicode (sb-ext:string-to-octets query-expression
- :external-format :utf8)
- #-sb-unicode query-expression))
-
;;; Field conversion functions
(defun result-field-names (res-ptr)
(defmethod database-name-from-spec (connection-spec (database-type (eql :mysql)))
(check-connection-spec connection-spec database-type
- (host db user password &optional port))
- (destructuring-bind (host db user password &optional port) connection-spec
- (declare (ignore password))
+ (host db user password &optional port options))
+ (destructuring-bind (host db user password &optional port options) connection-spec
+ (declare (ignore password options))
(concatenate 'string
(etypecase host
(null "localhost")
"")
"/" db "/" user)))
+(defun lookup-option-code (option)
+ (if (assoc option +mysql-option-parameter-map+)
+ (symbol-value (intern
+ (concatenate 'string (symbol-name-default-case "mysql-option#")
+ (symbol-name option))
+ (symbol-name '#:mysql)))
+ (progn
+ (warn "Unknown mysql option name ~A - ignoring.~%" option)
+ nil)))
+
+(defun set-mysql-options (mysql-ptr options)
+ (flet ((lookup-option-type (option)
+ (cdr (assoc option +mysql-option-parameter-map+))))
+ (dolist (option options)
+ (if (atom option)
+ (let ((option-code (lookup-option-code option)))
+ (when option-code
+ (mysql-options mysql-ptr option-code uffi:+null-cstring-pointer+)))
+ (destructuring-bind (name . value) option
+ (let ((option-code (lookup-option-code name)))
+ (when option-code
+ (case (lookup-option-type name)
+ (:none
+ (mysql-options mysql-ptr option-code uffi:+null-cstring-pointer+))
+ (:char-ptr
+ (if (stringp value)
+ (uffi:with-foreign-string (fs value)
+ (mysql-options mysql-ptr option-code fs))
+ (warn "Expecting string argument for mysql option ~A, got ~A ~
+- ignoring.~%"
+ name value)))
+ (:uint-ptr
+ (if (integerp value)
+ (uffi:with-foreign-object (fo :unsigned-int)
+ (setf (uffi:deref-pointer fo :unsigned-int) value)
+ (mysql-options mysql-ptr option-code fo))
+ (warn "Expecting integer argument for mysql option ~A, got ~A ~
+- ignoring.~%"
+ name value)))
+ (:boolean-ptr
+ (uffi:with-foreign-object (fo :byte)
+ (setf (uffi:deref-pointer fo :byte)
+ (if (or (zerop value) (null value))
+ 0
+ 1))
+ (mysql-options mysql-ptr option-code fo)))))))))))
+
(defmethod database-connect (connection-spec (database-type (eql :mysql)))
(check-connection-spec connection-spec database-type
- (host db user password &optional port))
- (destructuring-bind (host db user password &optional port) connection-spec
+ (host db user password &optional port options))
+ (destructuring-bind (host db user password &optional port options) connection-spec
(let ((mysql-ptr (mysql-init (uffi:make-null-pointer 'mysql-mysql)))
(socket nil))
(if (uffi:null-pointer-p mysql-ptr)
(password-native password)
(db-native db)
(socket-native socket))
+ (when options
+ (set-mysql-options mysql-ptr options))
(let ((error-occurred nil))
(unwind-protect
(if (uffi:null-pointer-p
:mysql-ptr mysql-ptr))
(cmd "SET SESSION sql_mode='ANSI'"))
(uffi:with-cstring (cmd-cs cmd)
- (if (zerop (mysql-real-query mysql-ptr cmd-cs (expression-length cmd)))
+ (if (zerop (mysql-real-query mysql-ptr cmd-cs (uffi:foreign-encoded-octet-count
+ cmd :encoding (encoding db))))
db
(progn
(warn "Error setting ANSI mode for MySQL.")
(setf (database-mysql-ptr database) nil)
t)
-
-(defmethod database-query (query-expression (database mysql-database)
- 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 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))
- (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)
(let ((mysql-ptr (database-mysql-ptr database)))
(declare (type mysql-mysql-ptr-def mysql-ptr))
(if (zerop (mysql-real-query mysql-ptr sql-native
- (expression-length sql-expression)))
+ (uffi:foreign-encoded-octet-count
+ sql-expression :encoding (encoding database))))
t
(error 'sql-database-data-error
:database database
:message (mysql-error-string mysql-ptr))))))
+(defmethod database-query (query-expression (database mysql-database)
+ result-types field-names)
+ (declare (optimize (speed 3) (safety 0) (debug 0) (space 0)))
+ (let ((mysql-ptr (database-mysql-ptr database)))
+ (declare (type mysql-mysql-ptr-def mysql-ptr))
+ (when (database-execute-command query-expression database)
+ (let ((res-ptr (mysql-use-result mysql-ptr)))
+ (declare (type mysql-mysql-res-ptr-def res-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)
+ (nth i result-types)
+ :length
+ (uffi:deref-array lengths '(:array :unsigned-long) i)
+ :encoding (encoding database)))))
+ (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))))))))
+
+
(defstruct mysql-result-set
(res-ptr (uffi:make-null-pointer 'mysql-mysql-res) :type mysql-mysql-res-ptr-def)
(types nil :type list)
(defmethod database-query-result-set ((query-expression string)
(database mysql-database)
&key full-set result-types)
- (uffi:with-cstring (query-native query-expression)
- (let ((mysql-ptr (database-mysql-ptr database)))
- (declare (type mysql-mysql-ptr-def mysql-ptr))
- (if (zerop (mysql-real-query mysql-ptr query-native
- (expression-length query-expression)))
- (let ((res-ptr (if full-set
- (mysql-store-result mysql-ptr)
- (mysql-use-result mysql-ptr))))
- (declare (type mysql-mysql-res-ptr-def res-ptr))
- (if (not (uffi:null-pointer-p res-ptr))
- (let* ((num-fields (mysql-num-fields res-ptr))
- (result-set (make-mysql-result-set
- :res-ptr res-ptr
- :num-fields num-fields
- :full-set full-set
- :types
- (canonicalize-types
- result-types res-ptr))))
- (if full-set
- (values result-set
- num-fields
- (mysql-num-rows res-ptr))
- (values result-set
- num-fields)))
- (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))))))
+ (let ((mysql-ptr (database-mysql-ptr database)))
+ (declare (type mysql-mysql-ptr-def mysql-ptr))
+ (when (database-execute-command query-expression database)
+ (let ((res-ptr (if full-set
+ (mysql-store-result mysql-ptr)
+ (mysql-use-result mysql-ptr))))
+ (declare (type mysql-mysql-res-ptr-def res-ptr))
+ (if (not (uffi:null-pointer-p res-ptr))
+ (let* ((num-fields (mysql-num-fields res-ptr))
+ (result-set (make-mysql-result-set
+ :res-ptr res-ptr
+ :num-fields num-fields
+ :full-set full-set
+ :types
+ (canonicalize-types
+ result-types res-ptr))))
+ (if full-set
+ (values result-set
+ num-fields
+ (mysql-num-rows res-ptr))
+ (values result-set
+ num-fields)))
+ (error 'sql-database-data-error
+ :database database
+ :expression query-expression
+ :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))
(setf (car rest)
(convert-raw-field
(uffi:deref-array row '(:array (* :unsigned-char)) i)
- types
- i
- (uffi:deref-array lengths '(:array :unsigned-long) i))))
+ (nth i types)
+ :length
+ (uffi:deref-array lengths '(:array :unsigned-long) i)
+ :encoding (encoding database))))
list)))
(declare (ignore owner))
(do ((results nil)
(rows (database-query
- (format nil "SHOW INDEX FROM ~A" table)
+ (format nil "SHOW INDEX FROM ~A" (escaped-database-identifier
+ table database))
database nil nil)
(cdr rows)))
((null rows) (nreverse results))
(declare (ignore owner))
(mapcar #'car
(database-query
- (format nil "SHOW COLUMNS FROM ~A" table)
+ (format nil "SHOW COLUMNS FROM ~A" (escaped-database-identifier
+ table database))
database nil nil)))
(defmethod database-attribute-type (attribute (table string)
(declare (ignore owner))
(let ((row (car (database-query
(format nil
- "SHOW COLUMNS FROM ~A LIKE '~A'" table attribute)
+ "SHOW COLUMNS FROM ~A LIKE '~A'"
+ (escaped-database-identifier
+ table database)
+ (unescaped-database-identifier
+ attribute database))
database nil nil))))
(let* ((raw-type (second row))
(null (third row))
;;; Sequence functions
-(defun %sequence-name-to-table (sequence-name)
- (concatenate 'string "_CLSQL_SEQ_" (sql-escape sequence-name)))
-
-(defun %table-name-to-sequence-name (table-name)
- (and (>= (length table-name) 11)
- (string-equal (subseq table-name 0 11) "_CLSQL_SEQ_")
- (subseq table-name 11)))
-
(defmethod database-create-sequence (sequence-name
(database mysql-database))
- (let ((table-name (%sequence-name-to-table sequence-name)))
+ (let ((table-name (%sequence-name-to-table sequence-name database)))
(database-execute-command
(concatenate 'string "CREATE TABLE " table-name
" (id int NOT NULL PRIMARY KEY AUTO_INCREMENT)")
(defmethod database-drop-sequence (sequence-name
(database mysql-database))
(database-execute-command
- (concatenate 'string "DROP TABLE " (%sequence-name-to-table sequence-name))
+ (concatenate 'string "DROP TABLE "
+ (%sequence-name-to-table sequence-name database))
database))
(defmethod database-list-sequences ((database mysql-database)
(declare (ignore owner))
(mapcan #'(lambda (s)
(let ((sn (%table-name-to-sequence-name (car s))))
- (and sn (list sn))))
+ (and sn (list (car s) sn))))
(database-query "SHOW TABLES" database nil nil)))
(defmethod database-set-sequence-position (sequence-name
(position integer)
(database mysql-database))
(database-execute-command
- (format nil "UPDATE ~A SET id=~A" (%sequence-name-to-table sequence-name)
+ (format nil "UPDATE ~A SET id=~A" (%sequence-name-to-table sequence-name database)
position)
database)
(mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database)))
(defmethod database-sequence-next (sequence-name (database mysql-database))
(without-interrupts
(database-execute-command
- (concatenate 'string "UPDATE " (%sequence-name-to-table sequence-name)
+ (concatenate 'string "UPDATE " (%sequence-name-to-table sequence-name database)
" SET id=LAST_INSERT_ID(id+1)")
database)
(mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database))))
(without-interrupts
(caar (database-query
(concatenate 'string "SELECT id from "
- (%sequence-name-to-table sequence-name))
+ (%sequence-name-to-table sequence-name database))
database :auto nil))))
+(defmethod database-last-auto-increment-id ((database mysql-database) table column)
+ (declare (ignore table column))
+ (car (query "SELECT LAST_INSERT_ID();"
+ :flatp t :field-names nil
+ :database database)))
+
(defmethod database-create (connection-spec (type (eql :mysql)))
(destructuring-bind (host name user password) connection-spec
(let ((database (database-connect (list host "" user password)
t))
(defmethod database-list (connection-spec (type (eql :mysql)))
- (destructuring-bind (host name user password &optional port) connection-spec
+ (destructuring-bind (host name user password &optional port options) connection-spec
+ (declare (ignore options))
(let ((database (database-connect (list host (or name "mysql")
user password port) type)))
(unwind-protect
:message (mysql-error-string mysql-ptr)))
(uffi:with-cstring (native-query sql-stmt)
- (unless (zerop (mysql-stmt-prepare stmt native-query (expression-length sql-stmt)))
+ (unless (zerop (mysql-stmt-prepare stmt native-query (uffi:foreign-encoded-octet-count
+ sql-stmt :encoding (encoding database))))
(mysql-stmt-close stmt)
(error 'sql-database-error
:error-id (mysql-errno mysql-ptr)
((#.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:convert-from-foreign-string buffer :encoding (encoding (database stmt))))
+ (#.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#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))
(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)))
+ (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))))
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