Sorry, Massimo, I am writing toooo much.
Just do waht you want, if it is your use-case, just go !
Nevertheless, here are again my remarks:
Am 24.04.2013 15:12, schrieb Massimo Manghi:
> On 04/24/2013 02:01 PM, Harald Oehlmann wrote:
>>
>> Well, my baby ;-)
>> I just fixed bugs and security holes...
>>
>
> the same for me about Rivet, still I consider it my baby after almost 6
> years...
At least, you have human babies too ;-)
> I have select inputs whose data are built from queries to a database.
> In the whole picture it would be nice if also the database interface
> could be able to return a dictionary. It doesn't change the basic facts
> about form, just provides a nice interface for passing parameters by
> value in a single object while keeping coherent the way they're handled
> in the code
>
> select wn \
> -dictionary [$dbobj dictionary "select key,value from table where..."]
so this replaces:
set d [$dbobj dictionary "select key,value from table where..."]
$f select wm -labels [dict keys $d] -values [dict values $d]
This is reasonable.
In this case, I would not call the parameter "-dictionary". I would
suggest by the name that it sets labels and values at the same time.
Anyway, it is not important, that it is a dictionary, for the outside,
it may be a list with alternating key,val pairs.
What about:
$f select wn \
-vallabels [$dbobj dictionary "select key,value from table where..."]
I am not shure how "$dbobj dictionary" works, but IMHO the "values"
should be the dict keys and the "labels" should be the dict values.
But I am not shure on this.
Internally in the form package, I would not handle the -vallabels
parameter as a dict, but as a list.
There might be multiple labels with same values and multiple values with
same labels, no uniqueness in no direction.
The caller may decide to pass a dict.
As an extreme, we may propose for dicts:
$f select win -vallabels $d1
and
$f select win -labvalues $d2
In the first, the dict keys are the values, in the second they are the
labels.
------
Side note about data bases: I would prefer to get close to the format
given by tdbc. When "dict" is used as output, you get by
set ld [$db allrows -type dict "select key,val from table where..."]
This results in a list of dicts like that:
{key K1 val V1} {key K2 val V2}
------
Enjoy,
Harald
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