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## First rough version of a test script
##
## Assumes that
## a) PostgreSQL is running, and
## b) the current user can connect
## both of which are not viable for release but suitable while we test
##
## Dirk Eddelbuettel, 02 Jul 2008
## 21 Oct 2008 make conditional on environment variables
## only run this if this env.var is set correctly
if (Sys.getenv("POSTGRES_USER") != "" & Sys.getenv("POSTGRES_HOST") != "" & Sys.getenv("POSTGRES_DATABASE") != "") {
## try to load our module and abort if this fails
stopifnot(require(RPostgreSQL))
## load the PostgresSQL driver
drv <- dbDriver("PostgreSQL")
## can't print result as it contains process id which changes print(summary(drv))
## connect to the default db
con <- dbConnect(drv,
user=Sys.getenv("POSTGRES_USER"),
password=Sys.getenv("POSTGRES_PASSWD"),
host=Sys.getenv("POSTGRES_HOST"),
dbname=Sys.getenv("POSTGRES_DATABASE"),
port=ifelse((p<-Sys.getenv("POSTGRES_PORT"))!="", p, 5432))
## run a simple query and show the query result
res <- dbGetQuery(con, paste("select datname,encoding,datallowconn from pg_database",
"where datname like 'template%' order by datname"))
print(res)
## and disconnect
dbDisconnect(con)
}
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