| Prev | Chapter 10. Advanced Topics | Next |
|---|
It is possible to use the OpenACS Tcl database API with +
It is possible to use the OpenACS Tcl database API with other databases. In this example, the OpenACS site uses a PostGre database, and accesses another PostGre database called - legacy.
-Modify config.tcl to accommodate the legacy database, and to + legacy.
Modify config.tcl to accommodate the legacy database, and to ensure that the legacy database is not used for standard - OpenACS queries:
-ns_section ns/db/pools
+ OpenACS queries:ns_section ns/db/pools
ns_param pool1 "Pool 1"
ns_param pool2 "Pool 2"
ns_param pool3 "Pool 3"
@@ -61,20 +56,14 @@
ns_section ns/server/${server}/acs/database
ns_param database_names [list main legacy]
ns_param pools_main [list pool1 pool2 pool3]
-ns_param pools_legacy [list legacy]
- To use the legacy database, use the +ns_param pools_legacy [list legacy]
To use the legacy database, use the
-dbn flag for any of the
db_ API calls. For
example, suppose there is a table called "foo" in the legacy
system, with a field "bar". List "bar" for all records with
- this Tcl file:
db_foreach -dbn legacy get_bar_query {
+ this Tcl file:db_foreach -dbn legacy get_bar_query {
select bar from foo
limit 10
} {
ns_write "<br/>$bar"
-}
-
-