As I learn to use ad_form I am mentally constructing a diagram of the different namespaces and the ways of passing values between them. It is rather incomplete but led me to wonder whether someone else might have already done a better one and not published it yet.
It is intended to help with issues like this: I have a table of contact points including home and work phone numbers and email addresses, etc. Each is a row like:
code='HomePhone' c_val='416-555-1212' name='Home Phone'
I wanted to use ad_form -extend to create widgets with name=code, val=c_val only for the contact points that actually exist for a person. Using the variables in the code block of a db_multirow,
I cannot do this:
ad_form -name foo-edit -extend -form {
{$code:text {label "$name"} {mode display} {display_value "$c_val"} }
because the $code value is not available to template::element::create, but $name and $c_val have already been evaluated.
but this direct call succeeds for all parts of the element:
template::element::create foo-edit $code -datatype text -label "$name" -mode display -display_value "$c_val"
I would like to understand better why this is so and to be able to change technique when needed without so much trial and error. A diagram might help.
