;;;; *************************************************************************
;;;; FILE IDENTIFICATION
;;;;
-;;;; Name: postgresql-socket-sql.sql
-;;;; Purpose: High-level PostgreSQL interface using socket
-;;;; Programmers: Kevin M. Rosenberg based on
-;;;; Original code by Pierre R. Mai
-;;;; Date Started: Feb 2002
+;;;; Name: postgresql-socket-sql.sql
+;;;; Purpose: High-level PostgreSQL interface using socket
+;;;; Authors: Kevin M. Rosenberg based on original code by Pierre R. Mai
+;;;; Created: Feb 2002
;;;;
;;;; $Id$
;;;;
-;;;; This file, part of CLSQL, is Copyright (c) 2002 by Kevin M. Rosenberg
+;;;; This file, part of CLSQL, is Copyright (c) 2002-2004 by Kevin M. Rosenberg
;;;; and Copyright (c) 1999-2001 by Pierre R. Mai
;;;;
;;;; CLSQL users are granted the rights to distribute and use this software
(in-package #:cl-user)
(defpackage :clsql-postgresql-socket
- (:use #:common-lisp #:clsql-base-sys #:postgresql-socket)
+ (:use #:common-lisp #:clsql-sys #:postgresql-socket)
(:export #:postgresql-socket-database)
(:documentation "This is the CLSQL socket interface to PostgreSQL."))
;; interface foreign library loading routines
-(clsql-base-sys:database-type-load-foreign :postgresql-socket)
+(clsql-sys:database-type-load-foreign :postgresql-socket)
;; Field type conversion
(defun convert-to-clsql-warning (database condition)
- (warn 'clsql-database-warning :database database
- :message (postgresql-condition-message condition)))
+ (ecase *backend-warning-behavior*
+ (:warn
+ (warn 'clsql-database-warning :database database
+ :message (postgresql-condition-message condition)))
+ (:error
+ (error 'clsql-sql-error :database database
+ :message (format nil "Warning upgraded to error: ~A"
+ (postgresql-condition-message condition))))
+ ((:ignore nil)
+ ;; do nothing
+ )))
(defun convert-to-clsql-error (database expression condition)
(error 'clsql-sql-error :database database
(lambda (c)
(convert-to-clsql-error
,database-var ,expression-var c))))
- ;; KMR - removed double @@
,@body))))
(defmethod database-initialize-database-type ((database-type
(make-instance 'postgresql-socket-database
:name (database-name-from-spec connection-spec
database-type)
+ :database-type :postgresql-socket
:connection-spec connection-spec
:connection connection)))))
(close-postgresql-connection (database-connection database))
t)
-(defmethod database-query (expression (database postgresql-socket-database) result-types)
+(defmethod database-query (expression (database postgresql-socket-database) result-types field-names)
(let ((connection (database-connection database)))
(with-postgresql-handlers (database expression)
(start-query-execution connection expression)
:errno 'missing-result
:error "Didn't receive result cursor for query."))
(setq result-types (canonicalize-types result-types cursor))
- (loop for row = (read-cursor-row cursor result-types)
- while row
- collect row
- finally
- (unless (null (wait-for-query-results connection))
- (close-postgresql-connection connection)
- (error 'clsql-sql-error
- :database database
- :expression expression
- :errno 'multiple-results
- :error "Received multiple results for query.")))))))
+ (values
+ (loop for row = (read-cursor-row cursor result-types)
+ while row
+ collect row
+ finally
+ (unless (null (wait-for-query-results connection))
+ (close-postgresql-connection connection)
+ (error 'clsql-sql-error
+ :database database
+ :expression expression
+ :errno 'multiple-results
+ :error "Received multiple results for query.")))
+ (when field-names
+ (mapcar #'car (postgresql-cursor-fields cursor))))))))
(defmethod database-execute-command
(expression (database postgresql-socket-database))
(wait-for-query-results connection)
(when (eq status :cursor)
(loop
- (multiple-value-bind (row stuff)
- (skip-cursor-row result)
- (unless row
- (setq status :completed result stuff)
- (return)))))
+ (multiple-value-bind (row stuff)
+ (skip-cursor-row result)
+ (unless row
+ (setq status :completed result stuff)
+ (return)))))
(cond
- ((null status)
- t)
- ((eq status :completed)
- (unless (null (wait-for-query-results connection))
+ ((null status)
+ t)
+ ((eq status :completed)
+ (unless (null (wait-for-query-results connection))
(close-postgresql-connection connection)
(error 'clsql-sql-error
:database database
:expression expression
:errno 'multiple-results
:error "Received multiple results for command."))
- result)
+ result)
(t
(close-postgresql-connection connection)
(error 'clsql-sql-error
;;; Object listing
-(defmethod database-list-objects-of-type ((database postgresql-socket-database)
- type owner)
- (let ((owner-clause
- (cond ((stringp owner)
- (format nil " AND (relowner=(SELECT usesysid FROM pg_user WHERE (usename='~A')))" owner))
- ((null owner)
- (format nil " AND (NOT (relowner=1))"))
- (t ""))))
- (mapcar #'car
- (database-query
- (format nil
- "SELECT relname FROM pg_class WHERE (relkind = '~A')~A"
- type
- owner-clause)
- database nil))))
-
+(defun owner-clause (owner)
+ (cond
+ ((stringp owner)
+ (format
+ nil
+ " AND (relowner=(SELECT usesysid FROM pg_user WHERE (usename='~A')))"
+ owner))
+ ((null owner)
+ (format nil " AND (NOT (relowner=1))"))
+ (t "")))
+
+(defun database-list-objects-of-type (database type owner)
+ (mapcar #'car
+ (database-query
+ (format nil
+ "SELECT relname FROM pg_class WHERE (relkind = '~A')~A"
+ type
+ (owner-clause owner))
+ database nil nil)))
+
(defmethod database-list-tables ((database postgresql-socket-database)
&key (owner nil))
(database-list-objects-of-type database "r" owner))
(defmethod database-list-indexes ((database postgresql-socket-database)
&key (owner nil))
(database-list-objects-of-type database "i" owner))
-
+
+(defmethod database-list-table-indexes (table
+ (database postgresql-socket-database)
+ &key (owner nil))
+ (let ((indexrelids
+ (database-query
+ (format
+ nil
+ "select indexrelid from pg_index where indrelid=(select relfilenode from pg_class where relname='~A'~A)"
+ (string-downcase table)
+ (owner-clause owner))
+ database :auto nil))
+ (result nil))
+ (dolist (indexrelid indexrelids (nreverse result))
+ (push
+ (caar (database-query
+ (format nil "select relname from pg_class where relfilenode='~A'"
+ (car indexrelid))
+ database nil nil))
+ result))))
+
(defmethod database-list-attributes ((table string)
(database postgresql-socket-database)
&key (owner nil))
(format nil "SELECT attname FROM pg_class,pg_attribute WHERE pg_class.oid=attrelid AND relname='~A'~A"
(string-downcase table)
owner-clause)
- database nil))))
+ database nil nil))))
(if result
(reverse
(remove-if #'(lambda (it) (member it '("cmin"
(defmethod database-attribute-type (attribute (table string)
(database postgresql-socket-database)
&key (owner nil))
- (let* ((owner-clause
- (cond ((stringp owner)
- (format nil " AND (relowner=(SELECT usesysid FROM pg_user WHERE usename='~A'))" owner))
- ((null owner) " AND (not (relowner=1))")
- (t "")))
- (result
- (mapcar #'car
- (database-query
- (format nil "SELECT pg_type.typname FROM pg_type,pg_class,pg_attribute WHERE pg_class.oid=pg_attribute.attrelid AND pg_class.relname='~A' AND pg_attribute.attname='~A' AND pg_attribute.atttypid=pg_type.oid~A"
+ (let ((row (car (database-query
+ (format nil "SELECT pg_type.typname,pg_attribute.attlen,pg_attribute.atttypmod,pg_attribute.attnotnull FROM pg_type,pg_class,pg_attribute WHERE pg_class.oid=pg_attribute.attrelid AND pg_class.relname='~A' AND pg_attribute.attname='~A' AND pg_attribute.atttypid=pg_type.oid~A"
(string-downcase table)
- (string-downcase attribute)
- owner-clause)
- database nil))))
- (when result
- (intern (string-upcase (car result)) :keyword))))
+ (string-downcase attribute)
+ (owner-clause owner))
+ database nil nil))))
+ (when row
+ (values
+ (ensure-keyword (first row))
+ (if (string= "-1" (second row))
+ (- (parse-integer (third row) :junk-allowed t) 4)
+ (parse-integer (second row)))
+ nil
+ (if (string-equal "f" (fourth row))
+ 1
+ 0)))))
(defmethod database-create-sequence (sequence-name
(database postgresql-socket-database))
(caar
(database-query
(format nil "SELECT SETVAL ('~A', ~A)" name position)
- database nil)))))
+ database nil nil)))))
(defmethod database-sequence-next (sequence-name
(database postgresql-socket-database))
(caar
(database-query
(concatenate 'string "SELECT NEXTVAL ('" (sql-escape sequence-name) "')")
- database nil)))))
+ database nil nil)))))
(defmethod database-sequence-last (sequence-name (database postgresql-socket-database))
(values
(caar
(database-query
(concatenate 'string "SELECT LAST_VALUE ('" sequence-name "')")
- database nil)))))
+ database nil nil)))))
(defmethod database-create (connection-spec (type (eql :postgresql-socket)))
(execute-command (format nil "drop database ~A" name))
(database-disconnect database)))))
+
(defmethod database-probe (connection-spec (type (eql :postgresql-socket)))
+ (when (find (second connection-spec) (database-list connection-spec type)
+ :key #'car :test #'string-equal)
+ t))
+
+(defmethod database-list (connection-spec (type (eql :postgresql-socket)))
(destructuring-bind (host name user password) connection-spec
+ (declare (ignore name))
(let ((database (database-connect (list host "template1" user password)
type)))
(unwind-protect
- (when
- (find name (database-query "select datname from pg_database"
- database :auto)
- :key #'car :test #'string-equal)
- t)
- (database-disconnect database)))))
+ (progn
+ (setf (slot-value database 'clsql-sys::state) :open)
+ (mapcar #'car (database-query "select datname from pg_database"
+ database :auto nil)))
+ (progn
+ (database-disconnect database)
+ (setf (slot-value database 'clsql-sys::state) :closed))))))
+
+(defmethod database-describe-table ((database postgresql-socket-database)
+ table)
+ (database-query
+ (format nil "select a.attname, t.typname
+ from pg_class c, pg_attribute a, pg_type t
+ where c.relname = '~a'
+ and a.attnum > 0
+ and a.attrelid = c.oid
+ and a.atttypid = t.oid"
+ (sql-escape (string-downcase table)))
+ database :auto nil))
+
+
+;; Database capabilities
+
+(defmethod db-backend-has-create/destroy-db? ((db-type (eql :postgresql-socket)))
+ nil)
+
+(defmethod db-type-has-fancy-math? ((db-type (eql :postgresql-socket)))
+ t)
+
+(defmethod db-type-default-case ((db-type (eql :postgresql-socket)))
+ :lower)
-(when (clsql-base-sys:database-type-library-loaded :postgresql-socket)
- (clsql-base-sys:initialize-database-type :database-type :postgresql-socket))
+(when (clsql-sys:database-type-library-loaded :postgresql-socket)
+ (clsql-sys:initialize-database-type :database-type :postgresql-socket))
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