;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
;;;; *************************************************************************
;;;;
-;;;; $Id$
-;;;;
;;;; Generic ODBC layer, used by db-odbc and db-aodbc backends
;;;;
;;;; This file is part of CLSQL.
(close-query-fn :reader close-query-fn)
(fetch-row :reader fetch-row-fn)
(list-all-database-tables-fn :reader list-all-database-tables-fn)
- (list-all-table-columns-fn :reader list-all-table-columns-fn))
+ (list-all-table-columns-fn :reader list-all-table-columns-fn)
+ (odbc-db-type :accessor database-odbc-db-type :initarg :odbc-db-type ))
(:documentation "Encapsulate same behavior across odbc and aodbc backends."))
(defmethod initialize-instance :after ((db generic-odbc-database)
(slot-value db 'list-all-table-columns-fn)
(intern (symbol-name '#:list-all-table-columns) pkg))))
-;;; Object methods
-
-(defmethod read-sql-value (val (type (eql 'boolean))
- (database generic-odbc-database)
- (db-type (eql :postgresql)))
- (if (string= "0" val) nil t))
-
-(defmethod read-sql-value (val (type (eql 'generalized-boolean))
- (database generic-odbc-database)
- (db-type (eql :postgresql)))
- (if (string= "0" val) nil t))
-
-(defmethod read-sql-value (val (type (eql 'boolean)) database
- (db-type (eql :mssql)))
- (declare (ignore database))
- (etypecase val
- (string (if (string= "0" val) nil t))
- (integer (if (zerop val) nil t))))
-
-(defmethod read-sql-value (val (type (eql 'generalized-boolean)) database
- (db-type (eql :mssql)))
- (declare (ignore database))
- (etypecase val
- (string (if (string= "0" val) nil t))
- (integer (if (zerop val) nil t))))
-
;;; Type methods
-(defmethod database-get-type-specifier ((type (eql 'wall-time)) args database
- (db-type (eql :mssql)))
- (declare (ignore args database))
- "DATETIME")
-
-(defmethod database-get-type-specifier ((type (eql 'boolean)) args database
+(defmethod database-get-type-specifier ((type symbol) args database
(db-type (eql :mssql)))
- (declare (ignore args database))
- "BIT")
-
-(defmethod database-get-type-specifier ((type (eql 'generalized-boolean)) args database
- (db-type (eql :mssql)))
- (declare (ignore args database))
- "BIT")
+ "Special database types for MSSQL backends"
+ (declare (ignore database db-type args))
+ (case type
+ (wall-time "DATETIME")
+ (date "SMALLDATETIME")
+ ((generalized-boolean boolean) "BIT")
+ ((longchar text) "ntext")
+ ((varchar string)
+ (if args
+ (format nil "NVARCHAR(~A)" (car args))
+ (format nil "NVARCHAR(~D)" *default-string-length*)))
+ (t (call-next-method))))
;;; Generation of SQL strings from lisp expressions
(:mssql "1")
(t "'Y'")))
-(defmethod database-output-sql-as-type ((type (eql 'boolean)) val database
- (db-type (eql :mssql)))
- (declare (ignore database))
- (if val 1 0))
-
-(defmethod database-output-sql-as-type ((type (eql 'generalized-boolean)) val database
- (db-type (eql :mssql)))
- (declare (ignore database))
- (if val 1 0))
-
;;; Database backend capabilities
(defmethod db-type-use-fully-qualified-column-on-drop-index? ((db-type (eql :mssql)))
(setf (car rest) elem))
list))))
-(defmethod database-list-tables ((database generic-odbc-database)
- &key (owner nil))
- (declare (ignore owner))
+
+(defun %database-list-* (database type owner)
+ "Internal function used by database-list-tables and
+database-list-views"
(multiple-value-bind (rows col-names)
(funcall (list-all-database-tables-fn database) :db (odbc-conn database))
(declare (ignore col-names))
+ ;; http://msdn.microsoft.com/en-us/library/ms711831%28VS.85%29.aspx
;; TABLE_SCHEM is hard-coded in second column by ODBC Driver Manager
;; TABLE_NAME in third column, TABLE_TYPE in fourth column
- (loop for row in rows
- when (and (not (string-equal "information_schema" (nth 1 row)))
- (string-equal "TABLE" (nth 3 row))
- (not (and (eq :mssql (database-underlying-type database))
- (string-equal "dtproperties" (nth 2 row)))))
- collect (nth 2 row))))
+ (loop for (category schema name ttype . rest) in rows
+ when (and (string-equal type ttype)
+ (or (null owner) (string-equal owner schema))
+ ;; unless requesting by name, skip system schema
+ (not (and (null owner)
+ (member schema '("information_schema" "sys")
+ :test #'string-equal)))
+ ;; skip system specific tables in mssql2000
+ (not (and (eql :mssql (database-underlying-type database))
+ (member name '("dtproperties" "sysconstraints"
+ "syssegments")
+ :test #'string-equal))))
+ collect name)))
+
+(defmethod database-list-tables ((database generic-odbc-database)
+ &key (owner nil))
+ "Since ODBC doesn't expose the owner we use that parameter to filter
+on schema since that's what tends to be exposed. Some DBs like mssql
+2000 conflate the two so at least there it works nicely."
+ (%database-list-* database "TABLE" owner))
(defmethod database-list-views ((database generic-odbc-database)
- &key (owner nil))
- (declare (ignore owner))
- (multiple-value-bind (rows col-names)
- (funcall (list-all-database-tables-fn database) :db (odbc-conn database))
- (declare (ignore col-names))
- ;; TABLE_SCHEM is hard-coded in second column by ODBC Driver Manager
- ;; TABLE_NAME in third column, TABLE_TYPE in fourth column
- (loop for row in rows
- when (and (not (string-equal "information_schema" (nth 1 row)))
- (string-equal "VIEW" (nth 3 row))
- (not (and (eq :mssql (database-underlying-type database))
- (member (nth 2 row) '("sysconstraints" "syssegments") :test #'string-equal))))
- collect (nth 2 row))))
+ &key (owner nil))
+ "Since ODBC doesn't expose the owner we use that parameter to filter
+on schema since that's what tends to be exposed. Some DBs like mssql
+2000 conflate the two so at least there it works nicely."
+ (%database-list-* database "VIEW" owner))
-(defmethod database-list-attributes ((table string) (database generic-odbc-database)
- &key (owner nil))
+(defmethod database-list-attributes ((table %database-identifier) (database generic-odbc-database)
+ &key (owner nil)
+ &aux (table (unescaped-database-identifier table)))
(declare (ignore owner))
(multiple-value-bind (rows col-names)
(funcall (list-all-table-columns-fn database) table
(loop for row in rows
collect (fourth row))))
-(defmethod database-attribute-type ((attribute string) (table string) (database generic-odbc-database)
- &key (owner nil))
+(defmethod database-attribute-type ((attribute %database-identifier) (table %database-identifier)
+ (database generic-odbc-database)
+ &key (owner nil)
+ &aux (table (unescaped-database-identifier table))
+ (attribute (unescaped-database-identifier attribute)))
(declare (ignore owner))
(multiple-value-bind (rows col-names)
(funcall (list-all-table-columns-fn database) table
(when size (parse-integer size))
(when precision (parse-integer precision))
(when scale (parse-integer scale))))))))
+
+(defmethod database-last-auto-increment-id
+ ((database generic-odbc-database) table column)
+ (case (database-underlying-type database)
+ (:mssql
+ (first (clsql:query "SELECT SCOPE_IDENTITY()"
+ :flatp t
+ :database database
+ :result-types '(:int))))
+ (t (if (next-method-p)
+ (call-next-method)))))
+
+(defmethod clsql-sys:db-type-has-auto-increment? ((db-underlying-type (eql :mssql)))
+ t)
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