;;;;
;;;; Name: sqlite-sql.lisp
;;;; Purpose: High-level SQLite interface
-;;;; Authors: Aurelio Bignoli and Marcus Pearce
+;;;; Authors: Aurelio Bignoli, Kevin Rosenberg, Marcus Pearce
;;;; Created: Aug 2003
;;;;
;;;; $Id$
;;;;
;;;; This file, part of CLSQL, is Copyright (c) 2003 by Aurelio Bignoli and
-;;;; Marcus Pearce
+;;;; Copyright (c) 2003-2004 by Kevin Rosenberg and Marcus Pearce.
;;;;
;;;; CLSQL users are granted the rights to distribute and use this software
;;;; as governed by the terms of the Lisp Lesser GNU Public License
:connection-spec connection-spec
:sqlite-db (sqlite:sqlite-open (first connection-spec)))
(sqlite:sqlite-error (err)
- (error 'clsql-connect-error
+ (error 'sql-connection-error
:database-type database-type
:connection-spec connection-spec
- :errno (sqlite:sqlite-error-code err)
- :error (sqlite:sqlite-error-message err)))))
+ :error-id (sqlite:sqlite-error-code err)
+ :message (sqlite:sqlite-error-message err)))))
(defmethod database-disconnect ((database sqlite-database))
(sqlite:sqlite-close (sqlite-db database))
(handler-case
(multiple-value-bind (data row-n col-n)
(sqlite:sqlite-get-table (sqlite-db database) sql-expression)
- #+clisp (declare (ignore data))
- #-clisp (sqlite:sqlite-free-table data)
+ (sqlite:sqlite-free-table data)
(unless (= row-n 0)
- (error 'clsql-simple-warning
+ (error 'sql-warning
:format-control
"Result set not empty: ~@(~A~) row~:P, ~@(~A~) column~:P "
:format-arguments (list row-n col-n))))
(sqlite:sqlite-error (err)
- (error 'clsql-sql-error
+ (error 'sql-database-data-error
:database database
:expression sql-expression
- :errno (sqlite:sqlite-error-code err)
- :error (sqlite:sqlite-error-message err))))
+ :error-id (sqlite:sqlite-error-code err)
+ :message (sqlite:sqlite-error-message err))))
t)
-(defmethod database-query (query-expression (database sqlite-database) result-types)
- (declare (ignore result-types)) ; SQLite is typeless!
- (handler-case
- (multiple-value-bind (data row-n col-n)
- (sqlite:sqlite-get-table (sqlite-db database) query-expression)
- #-clisp (declare (type sqlite:sqlite-row-pointer-type data))
- (if (= row-n 0)
- nil
- (prog1
- ;; The first col-n elements are column names.
- (loop for i from col-n below (* (1+ row-n) col-n) by col-n
- collect (loop for j from 0 below col-n
- collect
- (#+clisp aref
- #-clisp sqlite:sqlite-aref
- data (+ i j))))
- #-clisp (sqlite:sqlite-free-table data))
- ))
- (sqlite:sqlite-error (err)
- (error 'clsql-sql-error
- :database database
- :expression query-expression
- :errno (sqlite:sqlite-error-code err)
- :error (sqlite:sqlite-error-message err)))))
-
-#-clisp
(defstruct sqlite-result-set
(vm (sqlite:make-null-vm)
- :type sqlite:sqlite-vm-pointer)
+ #-clisp :type
+ #-clisp sqlite:sqlite-vm-pointer)
(first-row (sqlite:make-null-row)
- :type sqlite:sqlite-row-pointer-type)
- (n-col 0 :type fixnum))
-#+clisp
-(defstruct sqlite-result-set
- (vm nil)
- (first-row nil)
+ #-clisp :type
+ #-clisp sqlite:sqlite-row-pointer-type)
+ (col-names (sqlite:make-null-row)
+ #-clisp :type
+ #-clisp sqlite:sqlite-row-pointer-type)
+ (result-types nil)
(n-col 0 :type fixnum))
-(defmethod database-query-result-set
- ((query-expression string) (database sqlite-database) &key full-set result-types)
- (declare (ignore full-set result-types))
+(defmethod database-query (query-expression (database sqlite-database) result-types field-names)
+ (declare (optimize (speed 3) (safety 0) (debug 0) (space 0)))
(handler-case
- (let* ((vm (sqlite:sqlite-compile (sqlite-db database)
- query-expression))
- (result-set (make-sqlite-result-set :vm vm)))
- #-clisp (declare (type sqlite:sqlite-vm-pointer vm))
+ (multiple-value-bind (result-set n-col)
+ (database-query-result-set query-expression database
+ :result-types result-types
+ :full-set nil)
+ (do* ((rows nil)
+ (col-names (when field-names
+ (loop for j from 0 below n-col
+ collect (sqlite:sqlite-aref (sqlite-result-set-col-names result-set) j))))
+ (new-row (make-list n-col) (make-list n-col))
+ (row-ok (database-store-next-row result-set database new-row)
+ (database-store-next-row result-set database new-row)))
+ ((not row-ok)
+ (values (nreverse rows) col-names))
+ (push new-row rows)))
+ (sqlite:sqlite-error (err)
+ (error 'sql-database-data-error
+ :database database
+ :expression query-expression
+ :error-id (sqlite:sqlite-error-code err)
+ :message (sqlite:sqlite-error-message err)))))
- ;;; To obtain column number we have to read the first row.
+(defmethod database-query-result-set ((query-expression string)
+ (database sqlite-database)
+ &key result-types full-set)
+ (handler-case
+ (let ((vm (sqlite:sqlite-compile (sqlite-db database)
+ query-expression)))
+ ;;; To obtain column number/datatypes we have to read the first row.
(multiple-value-bind (n-col cols col-names)
(sqlite:sqlite-step vm)
- (declare (ignore col-names)
- #-clisp (type sqlite:sqlite-row-pointer-type cols)
- )
- (setf (sqlite-result-set-first-row result-set) cols
- (sqlite-result-set-n-col result-set) n-col)
- (values result-set n-col nil)))
+ (let ((result-set (make-sqlite-result-set
+ :vm vm
+ :first-row cols
+ :n-col n-col
+ :col-names col-names
+ :result-types
+ (canonicalize-result-types
+ result-types
+ n-col
+ col-names))))
+ (if full-set
+ (values result-set n-col nil)
+ (values result-set n-col)))))
(sqlite:sqlite-error (err)
- (error 'clsql-sql-error
+ (error 'sql-database-error
:database database
:expression query-expression
- :errno (sqlite:sqlite-error-code err)
- :error (sqlite:sqlite-error-message err)))))
+ :error-id (sqlite:sqlite-error-code err)
+ :message (sqlite:sqlite-error-message err)))))
+
+(defun canonicalize-result-types (result-types n-col col-names)
+ (when result-types
+ (let ((raw-types (if (eq :auto result-types)
+ (loop for j from n-col below (* 2 n-col)
+ collect (ensure-keyword (sqlite:sqlite-aref col-names j)))
+ result-types)))
+ (loop for type in raw-types
+ collect
+ (case type
+ ((:int :integer :tinyint :long :bigint)
+ :int32)
+ ((:float :double)
+ :double)
+ ((:numeric)
+ :number)
+ (otherwise
+ :string))))))
(defmethod database-dump-result-set (result-set (database sqlite-database))
(handler-case
(sqlite:sqlite-finalize (sqlite-result-set-vm result-set))
(sqlite:sqlite-error (err)
- (error 'clsql-simple-error
- :format-control "Error finalizing SQLite VM: ~A"
- :format-arguments (list (sqlite:sqlite-error-message err))))))
+ (error 'sql-database-error
+ :message
+ (format nil "Error finalizing SQLite VM: ~A"
+ (sqlite:sqlite-error-message err))))))
(defmethod database-store-next-row (result-set (database sqlite-database) list)
- (let ((n-col (sqlite-result-set-n-col result-set)))
+ (let ((n-col (sqlite-result-set-n-col result-set))
+ (result-types (sqlite-result-set-result-types result-set)))
(if (= n-col 0)
;; empty result set
nil
(multiple-value-bind (n new-row col-names)
(sqlite:sqlite-step (sqlite-result-set-vm result-set))
(declare (ignore n col-names)
- #-clisp (type sqlite:sqlite-row-pointer-type new-row)
- )
+ #-clisp (type sqlite:sqlite-row-pointer-type new-row))
(if (sqlite:null-row-p new-row)
(return-from database-store-next-row nil)
(setf row new-row)))
(sqlite:sqlite-error (err)
- (error 'clsql-simple-error
- :format-control "Error in sqlite-step: ~A"
- :format-arguments
- (list (sqlite:sqlite-error-message err)))))
+ (error 'sql-database-error
+ :message
+ (format nil "Error in sqlite-step: ~A"
+ (sqlite:sqlite-error-message err)))))
- ;; Use the row previously read by database-query-result-set.
+ ;; Use the row previously read by database-query-result-set.
(setf (sqlite-result-set-first-row result-set)
(sqlite:make-null-row)))
(loop for i = 0 then (1+ i)
for rest on list
do (setf (car rest)
- (#+clisp aref
- #-clisp sqlite:sqlite-aref
- row i)))
- #-clisp (sqlite:sqlite-free-row row)
+ #-clisp
+ (clsql-uffi:convert-raw-field
+ (uffi:deref-array
+ (uffi:deref-pointer row 'sqlite:sqlite-row-pointer) '(:array (* :unsigned-char)) i)
+ result-types
+ i)
+ #+clisp
+ (let ((type (if result-types
+ (nth i result-types)
+ :string))
+ (val (sqlite:sqlite-aref row i)))
+ (case type
+ (:string
+ val)
+ (:integer
+ (when val (parse-integer val)))
+ (:number
+ (read-from-string val))
+ (:double
+ (when val
+ (coerce
+ (read-from-string val)
+ 'double-float)))))))
+ (sqlite:sqlite-free-row row)
t))))
;;; Object listing
-(defmethod database-list-tables ((database sqlite-database) &key owner)
+(defmethod database-list-tables-and-sequences ((database sqlite-database) &key owner)
(declare (ignore owner))
;; Query is copied from .table command of sqlite comamnd line utility.
+ (mapcar #'car (database-query
+ "SELECT name FROM sqlite_master WHERE type='table' UNION ALL SELECT name FROM sqlite_temp_master WHERE type='table' ORDER BY name"
+ database nil nil)))
+
+(defmethod database-list-tables ((database sqlite-database) &key owner)
(remove-if #'(lambda (s)
(and (>= (length s) 11)
- (string= (subseq s 0 11) "_clsql_seq_")))
- (mapcar #'car (database-query
- "SELECT name FROM sqlite_master WHERE type='table' UNION ALL SELECT name FROM sqlite_temp_master WHERE type='table' ORDER BY name"
- database '()))))
+ (string-equal (subseq s 0 11) "_CLSQL_SEQ_")))
+ (database-list-tables-and-sequences database :owner owner)))
(defmethod database-list-views ((database sqlite-database)
&key (owner nil))
(declare (ignore owner))
(mapcar #'car (database-query
"SELECT name FROM sqlite_master WHERE type='view' UNION ALL SELECT name FROM sqlite_temp_master WHERE type='view' ORDER BY name"
- database nil)))
+ database nil nil)))
(defmethod database-list-indexes ((database sqlite-database)
&key (owner nil))
(declare (ignore owner))
(mapcar #'car (database-query
"SELECT name FROM sqlite_master WHERE type='index' UNION ALL SELECT name FROM sqlite_temp_master WHERE type='index' ORDER BY name"
- database nil)))
+ database nil nil)))
+
+(defmethod database-list-table-indexes (table (database sqlite-database)
+ &key (owner nil))
+ (declare (ignore owner))
+ (let ((*print-circle* nil))
+ (mapcar #'car
+ (database-query
+ (format
+ nil
+ "SELECT name FROM sqlite_master WHERE type='index' AND tbl_name='~A' UNION ALL SELECT name FROM sqlite_temp_master WHERE type='index' AND tbl_name='~A' ORDER BY name"
+ table table)
+ database nil nil))))
(declaim (inline sqlite-table-info))
(defun sqlite-table-info (table database)
(database-query (format nil "PRAGMA table_info('~A')" table)
- database '()))
+ database nil nil))
(defmethod database-list-attributes (table (database sqlite-database)
&key (owner nil))
&key (owner nil))
(declare (ignore owner))
(loop for field-info in (sqlite-table-info table database)
- when (string= attribute (second field-info))
- return (third field-info)))
-
-(defun %sequence-name-to-table-name (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_")
- (subseq table-name 11)))
-
-(defmethod database-create-sequence (sequence-name
- (database sqlite-database))
- (let ((table-name (%sequence-name-to-table-name sequence-name)))
- (database-execute-command
- (concatenate 'string "CREATE TABLE " table-name
- " (id INTEGER PRIMARY KEY)")
- database)
- (database-execute-command
- (format nil "INSERT INTO ~A VALUES (-1)" table-name)
- database)))
-
-(defmethod database-drop-sequence (sequence-name
- (database sqlite-database))
- (database-execute-command
- (concatenate 'string "DROP TABLE "
- (%sequence-name-to-table-name sequence-name))
- database))
-
-(defmethod database-list-sequences ((database sqlite-database)
- &key (owner nil))
- (declare (ignore owner))
- (mapcan #'(lambda (s)
- (let ((sn (%table-name-to-sequence-name (car s))))
- (and sn (list sn))))
- (database-query
- "SELECT name FROM sqlite_master WHERE type='table' UNION ALL SELECT name FROM sqlite_temp_master WHERE type='table' ORDER BY name"
- database '())))
-
-(defmethod database-sequence-next (sequence-name (database sqlite-database))
- (let ((table-name (%sequence-name-to-table-name sequence-name)))
- (database-execute-command
- (format nil "UPDATE ~A SET id=(SELECT id FROM ~A)+1"
- table-name table-name)
- database)
- (sqlite:sqlite-last-insert-rowid (sqlite-db database))
- (parse-integer
- (caar (database-query (format nil "SELECT id from ~A" table-name)
- database nil)))))
-
-(defmethod database-set-sequence-position (sequence-name
- (position integer)
- (database sqlite-database))
- (let ((table-name (%sequence-name-to-table-name sequence-name)))
- (database-execute-command
- (format nil "UPDATE ~A SET id=~A" table-name position)
- database)
- (sqlite:sqlite-last-insert-rowid (sqlite-db database))))
-
-(defmethod database-sequence-last (sequence-name (database sqlite-database))
- (declare (ignore sequence-name)))
+ when (string= attribute (second field-info))
+ return
+ (let* ((raw-type (third field-info))
+ (start-length (position #\( raw-type))
+ (type (if start-length
+ (subseq raw-type 0 start-length)
+ raw-type))
+ (length (if start-length
+ (parse-integer (subseq raw-type (1+ start-length))
+ :junk-allowed t)
+ nil)))
+ (values (when type (ensure-keyword type))
+ length
+ nil
+ (if (string-equal (fourth field-info) "0")
+ 1 0)))))
(defmethod database-create (connection-spec (type (eql :sqlite)))
(declare (ignore connection-spec))
(defmethod database-probe (connection-spec (type (eql :sqlite)))
(destructuring-bind (name) connection-spec
- ;; TODO: Add a test that this file is a real sqlite database
- (and (probe-file name) t)))
+ ;; TODO: Add a test that this file is a real sqlite database
+ (or (string-equal ":memory:" name)
+ (and (probe-file name) t))))
+
+;;; Database capabilities
+
+(defmethod db-type-has-boolean-where? ((db-type (eql :sqlite)))
+ nil)
+
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