;;;; *************************************************************************
(defpackage #:clsql-mysql
- (:use #:common-lisp #:clsql-base-sys #:mysql #:clsql-uffi)
+ (:use #:common-lisp #:clsql-sys #:mysql #:clsql-uffi)
(:export #:mysql-database)
(:documentation "This is the CLSQL interface to MySQL."))
;;; 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)))
+ (nreverse names)))
+
(defun make-type-list-for-auto (num-fields res-ptr)
(declare (fixnum num-fields))
(let ((new-types '())
- #+ignore (field-vec (mysql-fetch-fields res-ptr)))
+ (field-vec (mysql-fetch-fields res-ptr)))
(dotimes (i num-fields)
(declare (fixnum i))
- (let* ( (field (mysql-fetch-field-direct res-ptr i))
- #+ignore (field (uffi:deref-array field-vec '(:array mysql-field) i))
+ (let* ((field (uffi:deref-array field-vec '(:array mysql-field) i))
(type (uffi:get-slot-value field 'mysql-field 'type)))
(push
(case type
(defmethod database-query (query-expression (database mysql-database)
- result-types)
+ 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)
(setq result-types (canonicalize-types
result-types num-fields
res-ptr))
- (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))))))
- (mysql-free-result res-ptr))
- (error 'clsql-sql-error
- :database database
- :expression query-expression
- :errno (mysql-errno mysql-ptr)
- :error (mysql-error-string mysql-ptr))))
- (error 'clsql-sql-error
- :database database
- :expression query-expression
- :errno (mysql-errno mysql-ptr)
- :error (mysql-error-string mysql-ptr))))))
-
-#+ignore
-(defmethod database-query (query-expression (database mysql-database)
- result-types)
- (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-query mysql-ptr query-native))
- (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))
- (loop for row = (mysql-fetch-row res-ptr)
- until (uffi:null-pointer-p row)
- collect
- (loop for i fixnum from 0 below num-fields
- collect
- (convert-raw-field
- (uffi:deref-array row '(:array
- (* :unsigned-char))
- i)
- result-types i))))
+ (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 'clsql-sql-error
:database database
(declare (ignore owner))
(remove-if #'(lambda (s)
(and (>= (length s) 11)
- (string= (subseq s 0 11) "_clsql_seq_")))
- (mapcar #'car (database-query "SHOW TABLES" database nil))))
+ (string-equal (subseq s 0 11) "_CLSQL_SEQ_")))
+ (mapcar #'car (database-query "SHOW TABLES" database nil nil))))
;; MySQL 4.1 does not support views
(defmethod database-list-views ((database mysql-database)
&key (owner nil))
(let ((result '()))
(dolist (table (database-list-tables database :owner owner) result)
- (mapc #'(lambda (index) (push (nth 2 index) result))
- (database-query
- (format nil "SHOW INDEX FROM ~A" (string-upcase table))
- database nil)))))
+ (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" (string-upcase table))
+ 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 string) (database mysql-database)
&key (owner nil))
(mapcar #'car
(database-query
(format nil "SHOW COLUMNS FROM ~A" table)
- database nil)))
+ database nil nil)))
(defmethod database-attribute-type (attribute (table string)
(database mysql-database)
&key (owner nil))
(declare (ignore owner))
- (let ((result
- (mapcar #'cadr
- (database-query
- (format nil
- "SHOW COLUMNS FROM ~A LIKE '~A'" table attribute)
- database nil))))
- (let* ((str (car result))
- (end-str (position #\( str))
- (substr (subseq str 0 end-str)))
- (if substr
- (intern (string-upcase substr) :keyword) nil))))
+ (let ((row (car (database-query
+ (format nil
+ "SHOW COLUMNS FROM ~A LIKE '~A'" table attribute)
+ 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
(defun %sequence-name-to-table (sequence-name)
- (concatenate 'string "_clsql_seq_" (sql-escape sequence-name)))
+ (concatenate 'string "_CLSQL_SEQ_" (sql-escape sequence-name)))
(defun %table-name-to-sequence-name (table-name)
(and (>= (length table-name) 11)
- (string= (subseq table-name 0 11) "_clsql_seq_")
+ (string-equal (subseq table-name 0 11) "_CLSQL_SEQ_")
(subseq table-name 11)))
(defmethod database-create-sequence (sequence-name
(defmethod database-list-sequences ((database mysql-database)
&key (owner nil))
(declare (ignore owner))
- (mapcar #'(lambda (s) (%table-name-to-sequence-name (car s)))
- (database-query "SHOW TABLES LIKE '%clsql_seq%'"
- database nil)))
+ (mapcan #'(lambda (s)
+ (let ((sn (%table-name-to-sequence-name (car s))))
+ (and sn (list sn))))
+ (database-query "SHOW TABLES" database nil nil)))
(defmethod database-set-sequence-position (sequence-name
(position integer)
(mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database)))
(defmethod database-sequence-next (sequence-name (database mysql-database))
- (database-execute-command
- (concatenate 'string "UPDATE " (%sequence-name-to-table sequence-name)
- " SET id=LAST_INSERT_ID(id+1)")
- database)
- (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database)))
+ (without-interrupts
+ (database-execute-command
+ (concatenate 'string "UPDATE " (%sequence-name-to-table sequence-name)
+ " 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))
(declare (ignore sequence-name)))
-
-
(defmethod database-create (connection-spec (type (eql :mysql)))
(destructuring-bind (host name user password) connection-spec
(multiple-value-bind (output status)
- (clsql-base-sys: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)
(defmethod database-destroy (connection-spec (type (eql :mysql)))
(destructuring-bind (host name user password) connection-spec
(multiple-value-bind (output status)
- (clsql-base-sys: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)
t))))
(defmethod database-probe (connection-spec (type (eql :mysql)))
+ (when (find (second connection-spec) (database-list connection-spec type)
+ :key #'car :test #'string-equal)
+ t))
+
+(defmethod database-list (connection-spec (type (eql :mysql)))
(destructuring-bind (host name user password) connection-spec
+ (declare (ignore name))
(let ((database (database-connect (list host "mysql" user password) type)))
(unwind-protect
- (when
- (find name (database-query "select db from db"
- database :auto)
- :key #'car :test #'string-equal)
- t)
- (database-disconnect database)))))
+ (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))))))
+
+;;; 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)
+
+(defmethod db-type-has-subqueries? ((db-type (eql :mysql)))
+ ;; MySQL 4.1 will apparently have subqueries, need to check *mysql-client-info*
+ nil)
+
+(defmethod db-type-has-boolean-where? ((db-type (eql :mysql)))
+ nil)
+
+(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-sys:database-type-library-loaded :mysql)
+ (clsql-sys:initialize-database-type :database-type :mysql))
-(when (clsql-base-sys:database-type-library-loaded :mysql)
- (clsql-base-sys:initialize-database-type :database-type :mysql))
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