1 files changed, 0 insertions, 87 deletions
diff --git a/ebus-racket/db.rkt b/ebus-racket/db.rkt
deleted file mode 100644
index 081cca7..0000000
--- a/ebus-racket/db.rkt
+++ /dev/null
@@ -1,87 +0,0 @@
-#lang racket/base
-;; Database Acess with ryanc/db
-;;   leaks memory somewhere in db.plt
-(require (prefix-in db: (planet ryanc/db:1:5)))
-(require (prefix-in db: (planet ryanc/db:1:5/util/connect)))
-
-(define logger (make-logger 'ebus-db (current-logger)))
-
-(define con-user? (make-parameter "ebus"))
-(define con-password? (make-parameter "ebus"))
-(define con-database? (make-parameter "ebus"))
-(define con-server? (make-parameter "localhost"))
-
-(define pgc
-  (db:virtual-connection
-   (lambda ()
-     (log-message logger 'info (format "Connect to Database: user=~a database=~a server=~a" 
-				       (con-user?) (con-database?) (con-server?)) #t)
-     (db:postgresql-connect #:user (con-user?)
-			    #:database (con-database?)
-			    #:password (con-password?)
-			    #:server (con-server?)))))
-
-;; Test Database Connection
-;; Returns #t on success, #f otherwise
-(define (pgc-test)
-  (with-handlers ([exn:fail? (lambda (exn) #f)])
-    (= (db:query-value pgc "SELECT 1") 1)))
-
-;; Query ID of sensor given by sensor-name
-;; Returns null if sensor is undefined
-(define (get-sensor-id sensor-name)
-  (define sql-stmt "SELECT id FROM sensor WHERE name = $1")
-  (with-handlers ([exn:fail?  (lambda (exn) (void))])
-    (db:query-value pgc sql-stmt sensor-name)))
-
-;; Create Sensor-ID with given name
-;; returns id
-(define (create-sensor-id sensor-name)
-  (log-message logger 'info (format "create sensor id for ~a" sensor-name) #t)
-  (db:query-exec pgc "INSERT INTO sensor(name) VALUES ($1)" sensor-name)
-  (get-sensor-id sensor-name))
-
-;; Get ID of sensor given by sensor-name
-;; define sensor if needed
-(define (get-or-create-sensor-id sensor-name)
-  (define id (get-sensor-id sensor-name))
-  (cond ((void? id) (create-sensor-id sensor-name))
-	(else id)))
-
-;; Insert Field in Database
-;; Decide Database-Datatype from Ebus-Datatype
-;; then calls 'insert`
-(define (insert-field sensor-name datatype offset value)
-  (cond ((member datatype (list "data1c" "data2b" "data2c"))
-  	 ;; float
-  	 (insert sensor-name value db:sql-null db:sql-null))
-  	((member datatype (list "bit" "byte" "data1b" "word" "bcd"))
-  	 ;; int
-  	 (insert sensor-name db:sql-null value db:sql-null))
-  	((member datatype (list "byteEnum"))
-  	 ;; string
-  	 (insert sensor-name db:sql-null db:sql-null value))
-  	(else (log-message logger 'error (format "Datatype ~a is not support by DB" datatype) #t))))
-
-(define (insert sensor-name value-float value-int value-string)
-  (define sensor-id (get-or-create-sensor-id sensor-name))
-  (define type (cond ((not (db:sql-null? value-string)) "string")
-		     ((not (db:sql-null? value-float)) "float")
-		     ((not (db:sql-null? value-int)) "int")))
-  (define sql-stmt 
-    (string-append "INSERT INTO value(timestamp, sensor_id, type, value_float, value_int, value_string) "
-		   "VALUES (now(), $1, $2, $3, $4, $5)"))
-  (log-message logger 'info (string-append sql-stmt "\n\t\t"
-					   (format
-					    "sensor-id=~a type=~a value-float=~a value-int=~a value-string=~a"
-					    sensor-id type value-float value-int value-string)) #t)
-  (db:query-exec pgc sql-stmt sensor-id type value-float value-int value-string))
-
-(provide
- (prefix-out db- logger)
- (prefix-out db- con-user?)
- (prefix-out db- con-password?)
- (prefix-out db- con-database?)
- (prefix-out db- con-server?)
- (prefix-out db- pgc-test)
- (prefix-out db- insert-field))