template::query::onevalue (private)

 template::query::onevalue statement_name db result_name sql

Defined in packages/acs-templating/tcl/query-procs.tcl

Process a onevalue query. Use a single array to store the results.

Parameters:

statement_name - Standard db_api statement name used to hook into query dispatcher
db - Database handle
result_name - Tcl variable name to use when setting the result
sql - Query to use when processing this command

Partial Call Graph (max 5 caller/called nodes):

Testcases:

No testcase defined.

Source code:

    upvar opts opts

    upvar $opts(uplevel) $result_name result
    set result ""

    set row [db_exec 0or1row $db $statement_name $sql 3]

    if { $row ne "" } {

        # Set the result in the calling frame.
        set result [ns_set value $row 0]

        if { [info exists opts(cache)] } {
            set opts(result) $result
        }
    }

XQL Not present:

Generic, PostgreSQL, Oracle