xo::ConnectionContext instproc form_parameter (public)

 <instance of xo::ConnectionContext> form_parameter spec \
    [ default ]

Defined in /var/www/openacs/packages/xotcl-core/tcl/context-procs.tcl

Read a form parameter, loading the request form on demand.

Parameters:

spec (required)

Parameter name, optionally followed by :constraint.

default (optional)

Value to return when the parameter is absent.

Returns:

The value, or a list for a parameter marked as multiple.

Testcases:

create_workflow_with_instance, xowiki_test_cases