/usr/share/common-lisp/source/clsql-mysql/db-mysql/mysql-sql.lisp is in cl-sql-mysql 6.4.1-1.
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;;;; *************************************************************************
;;;; FILE IDENTIFICATION
;;;;
;;;; Name: mysql-sql.lisp
;;;; Purpose: High-level MySQL interface using UFFI
;;;; Date Started: Feb 2002
;;;;
;;;; 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
;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
;;;; *************************************************************************
(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)
;;; Field conversion functions
(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 (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 res-ptr)
(when types
(let ((auto-list (make-type-list-for-auto res-ptr)))
(cond
((listp types)
(canonicalize-type-list types auto-list))
((eq types :auto)
auto-list)
(t
nil)))))
(defmethod database-initialize-database-type ((database-type (eql :mysql)))
t)
;;(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)
(defclass mysql-database (database)
((mysql-ptr :accessor database-mysql-ptr :initarg :mysql-ptr
:type mysql-mysql-ptr-def)
(server-info :accessor database-server-info :initarg :server-info
:type string)))
(defmethod database-type ((database mysql-database))
:mysql)
(defmethod database-name-from-spec (connection-spec (database-type (eql :mysql)))
(check-connection-spec connection-spec database-type
(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")
(pathname (namestring host))
(string host))
(if port
(concatenate 'string
":"
(etypecase port
(integer (write-to-string port))
(string port)))
"")
"/" 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 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)
(error 'sql-connection-error
:database-type database-type
:connection-spec connection-spec
: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 db)
(socket-native socket))
(when options
(set-mysql-options mysql-ptr options))
(let ((error-occurred nil))
(unwind-protect
(if (uffi:null-pointer-p
(mysql-real-connect
mysql-ptr host-native user-native password-native
db-native
(etypecase port
(null 0)
(integer port)
(string (parse-integer port)))
socket-native 0))
(progn
(setq error-occurred t)
(error 'sql-connection-error
:database-type database-type
: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
:server-info (uffi:convert-from-cstring
(mysql:mysql-get-server-info mysql-ptr))
: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 (uffi:foreign-encoded-octet-count
cmd :encoding (encoding db))))
db
(progn
(warn "Error setting ANSI mode for MySQL.")
db)))))
(when error-occurred (mysql-close mysql-ptr)))))))))
(defmethod database-disconnect ((database mysql-database))
(mysql-close (database-mysql-ptr database))
(setf (database-mysql-ptr database) nil)
t)
(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
(uffi:foreign-encoded-octet-count
sql-expression :encoding (encoding database))))
t
(error 'sql-database-data-error
:database database
:expression sql-expression
:error-id (mysql-errno mysql-ptr)
: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)
(num-fields 0 :type fixnum)
(full-set nil :type boolean))
(defmethod database-query-result-set ((query-expression string)
(database mysql-database)
&key full-set result-types)
(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))
t)
(defmethod database-store-next-row (result-set (database mysql-database) list)
(let* ((res-ptr (mysql-result-set-res-ptr result-set))
(row (mysql-fetch-row res-ptr))
(lengths (mysql-fetch-lengths res-ptr))
(types (mysql-result-set-types result-set)))
(declare (type mysql-mysql-res-ptr-def res-ptr)
(type mysql-row-def row))
(unless (uffi:null-pointer-p row)
(loop for i from 0 below (mysql-result-set-num-fields result-set)
for rest on list
do
(setf (car rest)
(convert-raw-field
(uffi:deref-array row '(:array (* :unsigned-char)) i)
(nth i types)
:length
(uffi:deref-array lengths '(:array :unsigned-long) i)
:encoding (encoding database))))
list)))
;; Table and attribute introspection
(defmethod database-list-tables ((database mysql-database) &key (owner nil))
(declare (ignore owner))
(cond
((eql #\5 (char (database-server-info database) 0))
(loop for (name type) in (database-query "SHOW FULL TABLES" database nil nil)
when (and (string-equal type "base table")
(not (and (>= (length name) 11)
(string-equal (subseq name 0 11) "_CLSQL_SEQ_"))))
collect name))
(t
(remove-if #'(lambda (s)
(and (>= (length s) 11)
(string-equal (subseq s 0 11) "_CLSQL_SEQ_")))
(mapcar #'car (database-query "SHOW TABLES" database nil nil))))))
(defmethod database-list-views ((database mysql-database)
&key (owner nil))
(declare (ignore owner))
(cond
((eql #\5 (char (database-server-info database) 0))
(loop for (name type) in (database-query "SHOW FULL TABLES" database nil nil)
when (string-equal type "view")
collect name))
(t
nil)))
(defmethod database-list-indexes ((database mysql-database)
&key (owner nil))
(let ((result '()))
(dolist (table (database-list-tables database :owner owner) result)
(setq result
(append (database-list-table-indexes table database :owner owner)
result)))))
(defmethod database-list-table-indexes (table (database mysql-database)
&key (owner nil))
(declare (ignore owner))
(do ((results nil)
(rows (database-query
(format nil "SHOW INDEX FROM ~A" (escaped-database-identifier
table database))
database nil nil)
(cdr rows)))
((null rows) (nreverse results))
(let ((col (nth 2 (car rows))))
(unless (find col results :test #'string-equal)
(push col results)))))
(defmethod database-list-attributes ((table clsql-sys::%database-identifier)
(database mysql-database)
&key (owner nil)
&aux (table (unescaped-database-identifier table)))
(declare (ignore owner))
(mapcar #'car
(database-query
(format nil "SHOW COLUMNS FROM ~A" (escaped-database-identifier
table database))
database nil nil)))
(defmethod database-attribute-type ((attribute clsql-sys::%database-identifier)
(table clsql-sys::%database-identifier)
(database mysql-database)
&key (owner nil)
&aux (table (unescaped-database-identifier table))
(attribute (unescaped-database-identifier attribute)))
(declare (ignore owner))
(let ((row (car (database-query
(format nil
"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))
(start-length (position #\( raw-type))
(type (if start-length
(subseq raw-type 0 start-length)
raw-type))
(length (when start-length
(parse-integer (subseq raw-type (1+ start-length))
:junk-allowed t))))
(when type
(values (ensure-keyword type) length nil (if (string-equal null "YES") 1 0))))))
;;; Sequence functions
(defmethod database-create-sequence (sequence-name
(database mysql-database))
(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)")
database)
(database-execute-command
(concatenate 'string "INSERT INTO " table-name
" VALUES (-1)")
database)))
(defmethod database-drop-sequence (sequence-name
(database mysql-database))
(database-execute-command
(concatenate 'string "DROP TABLE "
(%sequence-name-to-table sequence-name database))
database))
(defmethod database-list-sequences ((database mysql-database)
&key (owner nil))
(declare (ignore owner))
(mapcan #'(lambda (s)
(let ((sn (%table-name-to-sequence-name (car s))))
(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 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 database)
" SET id=LAST_INSERT_ID(id+1)")
database)
(mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database))))
(defmethod database-sequence-last (sequence-name (database mysql-database))
(without-interrupts
(caar (database-query
(concatenate 'string "SELECT id from "
(%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)
type)))
(setf (slot-value database 'clsql-sys::state) :open)
(unwind-protect
(database-execute-command (format nil "create database ~A" name) database)
(database-disconnect database)))))
(defmethod database-destroy (connection-spec (type (eql :mysql)))
(destructuring-bind (host name user password) connection-spec
(let ((database (database-connect (list host "" user password)
type)))
(setf (slot-value database 'clsql-sys::state) :open)
(unwind-protect
(database-execute-command (format nil "drop database ~A" name) database)
(database-disconnect database)))))
(defmethod database-probe (connection-spec (type (eql :mysql)))
(when (find (second connection-spec) (database-list connection-spec type)
:test #'string-equal)
t))
(defmethod database-list (connection-spec (type (eql :mysql)))
(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
(progn
(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-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)
((or (eq type :blob) (and (consp type) (in (car type) :blob))) 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 (uffi:foreign-encoded-octet-count
sql-stmt :encoding (encoding database))))
(mysql-stmt-close 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))
(mysql-stmt-close stmt)
(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)
(warn "mysql_stmt_result_metadata returned NULL")
#+nil
(mysql-stmt-close stmt)
#+nil
(error 'sql-database-error
:message "mysql_stmt_result_metadata returned NULL"))
(let ((input-bind (uffi:allocate-foreign-object 'mysql-bind (length types)))
(mysql-types (mapcar 'clsql-type->mysql-type types))
field-vec num-fields is-null-ptr output-bind length-ptr)
(print 'a)
(dotimes (i (length types))
(let* ((binding (uffi:deref-array input-bind '(:array mysql-bind) i)))
(setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-type)
(nth i mysql-types))
(setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 0)))
(print 'b)
(unless (uffi:null-pointer-p rs)
(setq field-vec (mysql-fetch-fields rs)
num-fields (mysql-num-fields rs)
is-null-ptr (uffi:allocate-foreign-object :byte num-fields)
output-bind (uffi:allocate-foreign-object 'mysql-bind num-fields)
length-ptr (uffi:allocate-foreign-object :unsigned-long num-fields))
(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 'mysql::buffer-type) type)
(setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 0)
#+need-to-allocate-foreign-object-for-this
(setf (uffi:get-slot-value binding 'mysql-bind 'mysql::is-null)
(+ i (uffi:pointer-address is-null-ptr)))
#+need-to-allocate-foreign-object-for-this
(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 'mysql::buffer-length) 1024)
(setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
(uffi:allocate-foreign-object :unsigned-char 1024)))
(#.mysql-field-types#tiny
(setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
(uffi:allocate-foreign-object :byte)))
(#.mysql-field-types#short
(setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
(uffi:allocate-foreign-object :short)))
(#.mysql-field-types#long
(setf (uffi:get-slot-value binding 'mysql-bind 'mysql::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 'mysql::buffer)
(uffi:allocate-foreign-object :long)))
(#.mysql-field-types#float
(setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
(uffi:allocate-foreign-object :float)))
(#.mysql-field-types#double
(setf (uffi:get-slot-value binding 'mysql-bind 'mysql::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))
(mysql-stmt-close stmt)
(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)
(when (is-null-ptr stmt)
(setf (uffi:deref-array (is-null-ptr stmt) '(:array :byte) (1- position)) 1)))
(t
(when (is-null-ptr stmt)
(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 'mysql::buffer) value))
(t
(warn "Unknown input bind type ~D." type))
)))))
#+mysql-client-v4.1
(defmethod database-run-prepared ((stmt mysql-stmt))
(print 'a1)
(when (input-bind 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))))))
(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 'mysql::buffer-type))
(buffer (uffi:get-slot-value bind 'mysql-bind 'mysql::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 :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#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-client-v5 t
#-mysql-client-v5 nil)
(defmethod db-type-has-subqueries? ((db-type (eql :mysql)))
#+(or mysql-client-v4.1 mysql-client-v5) t
#-(or mysql-client-v4.1 mysql-client-v5) nil)
(defmethod db-type-has-boolean-where? ((db-type (eql :mysql)))
#+(or mysql-client-v4.1 mysql-client-v5) t
#-(or mysql-client-v4.1 mysql-client-v5) 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)))))
(defmethod db-type-has-prepared-stmt? ((db-type (eql :mysql)))
#+(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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