X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=db-sqlite%2Fsqlite-sql.lisp;h=5a902c97b024c0bb52eba959890a8076548701b2;hb=db9892632e6eb7869aea7a94c16b523a82de1501;hp=78068fbf7089750e3f8833c5701cefafddb92ef5;hpb=fd3c9c9f21ff40904bf27eb7a797bbd6c2d80630;p=clsql.git diff --git a/db-sqlite/sqlite-sql.lisp b/db-sqlite/sqlite-sql.lisp index 78068fb..5a902c9 100644 --- a/db-sqlite/sqlite-sql.lisp +++ b/db-sqlite/sqlite-sql.lisp @@ -1,28 +1,30 @@ -;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*- +;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*- ;;;; ************************************************************************* ;;;; FILE IDENTIFICATION ;;;; -;;;; Name: sqlite-sql.lisp -;;;; Purpose: High-level SQLite interface -;;;; Programmers: Aurelio Bignoli -;;;; Date Started: Aug 2003 +;;;; Name: sqlite-sql.lisp +;;;; Purpose: High-level SQLite interface +;;;; Authors: Aurelio Bignoli and Marcus Pearce +;;;; Created: Aug 2003 ;;;; -;;;; $Id: sqlite-sql.lisp,v 1.5 2004/03/09 20:57:44 aurelio Exp $ +;;;; $Id$ ;;;; -;;;; This file, part of CLSQL, is Copyright (c) 2003 by Aurelio Bignoli +;;;; This file, part of CLSQL, is Copyright (c) 2003 by Aurelio Bignoli 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 ;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL. ;;;; ************************************************************************* -(declaim (optimize (speed 3) (debug 0) (safety 0))) - -(in-package :clsql-sqlite) +(in-package #:clsql-sqlite) (defclass sqlite-database (database) ((sqlite-db :initarg :sqlite-db :accessor sqlite-db))) +(defmethod database-type ((database sqlite-database)) + :sqlite) + (defmethod database-initialize-database-type ((database-type (eql :sqlite))) t) @@ -39,6 +41,8 @@ (handler-case (make-instance 'sqlite-database :name (database-name-from-spec connection-spec :sqlite) + :database-type :sqlite + :connection-spec connection-spec :sqlite-db (sqlite:sqlite-open (first connection-spec))) (sqlite:sqlite-error (err) (error 'clsql-connect-error @@ -71,12 +75,12 @@ :error (sqlite:sqlite-error-message err)))) t) -(defmethod database-query (query-expression (database sqlite-database) types) - (declare (ignore types)) ; SQLite is typeless! +(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 data)) + #-clisp (declare (type sqlite:sqlite-row-pointer-type data)) (if (= row-n 0) nil (prog1 @@ -101,7 +105,7 @@ (vm (sqlite:make-null-vm) :type sqlite:sqlite-vm-pointer) (first-row (sqlite:make-null-row) - :type sqlite:sqlite-row-pointer) + :type sqlite:sqlite-row-pointer-type) (n-col 0 :type fixnum)) #+clisp (defstruct sqlite-result-set @@ -110,8 +114,8 @@ (n-col 0 :type fixnum)) (defmethod database-query-result-set - (query-expression (database sqlite-database) &key full-set types) - (declare (ignore full-set types)) + ((query-expression string) (database sqlite-database) &key full-set result-types) + (declare (ignore full-set result-types)) (handler-case (let* ((vm (sqlite:sqlite-compile (sqlite-db database) query-expression)) @@ -122,7 +126,7 @@ (multiple-value-bind (n-col cols col-names) (sqlite:sqlite-step vm) (declare (ignore col-names) - #-clisp (type sqlite:sqlite-row-pointer cols) + #-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) @@ -135,7 +139,6 @@ :error (sqlite:sqlite-error-message err))))) (defmethod database-dump-result-set (result-set (database sqlite-database)) - (declare (ignore database)) (handler-case (sqlite:sqlite-finalize (sqlite-result-set-vm result-set)) (sqlite:sqlite-error (err) @@ -155,7 +158,7 @@ (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 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) @@ -177,3 +180,157 @@ row i))) #-clisp (sqlite:sqlite-free-row row) t)))) + +;;; Object listing + +(defmethod database-list-tables ((database sqlite-database) &key owner) + (declare (ignore owner)) + ;; Query is copied from .table command of sqlite comamnd line utility. + (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 '())))) + +(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))) + +(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))) + +(defmethod database-list-table-indexes (table (database sqlite-database) + &key (owner nil)) + (declare (ignore owner)) + (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))) + +(declaim (inline sqlite-table-info)) +(defun sqlite-table-info (table database) + (database-query (format nil "PRAGMA table_info('~A')" table) + database '())) + +(defmethod database-list-attributes (table (database sqlite-database) + &key (owner nil)) + (declare (ignore owner)) + (mapcar #'(lambda (table-info) (second table-info)) + (sqlite-table-info table database))) + +(defmethod database-attribute-type (attribute table + (database sqlite-database) + &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 + " (last_value integer PRIMARY KEY, increment_by integer, min_value integer, is_called char(1))") + database) + (database-execute-command + (concatenate 'string "INSERT INTO " table-name + " VALUES (1,1,1,'f')") + 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)) + (without-interrupts + (let* ((table-name (%sequence-name-to-table-name sequence-name)) + (tuple + (car (database-query + (concatenate 'string "SELECT last_value,is_called FROM " + table-name) + database + :auto)))) + (cond + ((char-equal (schar (second tuple) 0) #\f) + (database-execute-command + (format nil "UPDATE ~A SET is_called='t'" table-name) + database) + (parse-integer (car tuple))) + (t + (let ((new-pos (1+ (parse-integer (car tuple))))) + (database-execute-command + (format nil "UPDATE ~A SET last_value=~D" table-name new-pos) + database) + new-pos)))))) + +(defmethod database-sequence-last (sequence-name (database sqlite-database)) + (without-interrupts + (parse-integer + (caar (database-query + (concatenate 'string "SELECT last_value FROM " + (%sequence-name-to-table-name sequence-name)) + database + :auto))))) + +(defmethod database-set-sequence-position (sequence-name + (position integer) + (database sqlite-database)) + (database-execute-command + (format nil "UPDATE ~A SET last_value=~A,is_called='t'" + (%sequence-name-to-table-name sequence-name) + position) + database) + position) + +(defmethod database-create (connection-spec (type (eql :sqlite))) + (declare (ignore connection-spec)) + ;; databases are created automatically by SQLite + t) + +(defmethod database-destroy (connection-spec (type (eql :sqlite))) + (destructuring-bind (name) connection-spec + (if (probe-file name) + (delete-file name) + nil))) + +(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 + (or (string-equal ":memory:" name) + (and (probe-file name) t)))) + + +