[mochikit] defferedlist, how to know the index of a particular deffered in the list
I have a situation where I have an array of arbitray length consisting of keywords. For each keyword, I fire off a doSimpleXMLHttpRequest(). I then use DeferredList() to create a list of all the Deferred objects and I add a callback. Now my problem is, how do I know from my callback function that the result comes from the seventh request I made, or the ninth, etc.? This is because I need to possibly modify one of the keywords in the array I used to orginally generate the requests. So I need to be able to relate the keyword to the request result. Thanks for any clarification. Everything else works great. I've done a lot of looking and I just can't get it. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups MochiKit group. To post to this group, send email to mochikit@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/mochikit?hl=en -~--~~~~--~~--~--~---
[mochikit] Re: defferedlist, how to know the index of a particular deffered in the list
Hi there,
On 6/15/07, Yves [EMAIL PROTECTED] wrote:
I then use DeferredList() to create a list of all the Deferred objects
and I add a callback.
Now my problem is, how do I know from my callback function that the
result comes from the seventh request I made, or the ninth, etc.?
The callback to the deferredlist will receive one parameter, an array
with the result of each deferred. Each element of that array is again
a two-element array, the first element being a boolean, true if that
deferred was successful and false otherwise and the second element is
the result of that deferred. To clarify, the result is whatever a
regular callback to that deferred would have received.
If the index of the deferred doesn't suffice to find the keyword, you
can make sure you receive the keyword like this:
function combine_key_with_result(key, result) {
return {key: key, result: result};
}
var xhr_deferreds = map(function (key) {
var d = do_your_xhr_call_and_return_deferred(key);
d.addCallback(partial(combine_key_with_result, key));
return d;
}, your_keyword_list);
var dl = new DeferredList(xhr_deferreds);
dl.addCallback(function (results_list) {
forEach(result_list, function (dl_result) {
var success = dl_result[0];
var key = dl_result[1].key;
var result = dl_result[1].result;
// now do your thing here :)
})
});
hth,
Arnar
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[mochikit] Re: createDom option example please
Ok. Like I say, this is not very clear to me right now, and I'm trying
to create an option list for a drop-down.
Let me put up my shot-in-the-dark example, then maybe someone can
correct me:
// add a single value/text option to drop-down:
OPTION(null, {'value': '123', 'text': 'some text'});
Trying to create this: option value=123some text/option
and a bunch more if everything goes well
I know that is completely wrong. This may be explained in the docs,
but I'm not seeing it. The example for building a table element is not
translating to an option. How does it know what element to use?
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[mochikit] Re: createDom option example please
On 6/15/07, hotani [EMAIL PROTECTED] wrote:
Ok. Like I say, this is not very clear to me right now, and I'm trying
to create an option list for a drop-down.
Let me put up my shot-in-the-dark example, then maybe someone can
correct me:
// add a single value/text option to drop-down:
OPTION(null, {'value': '123', 'text': 'some text'});
Trying to create this: option value=123some text/option
and a bunch more if everything goes well
The first argument is attributes, additional arguments are contents.
OPTION({'value': '123'}, some text);
-bob
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[mochikit] Re: createDom option example please
Great, thanks Bob. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups MochiKit group. To post to this group, send email to mochikit@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/mochikit?hl=en -~--~~~~--~~--~--~---
[mochikit] Re: createDom option example please
And here is a real working example in all its glory:
appendChildNodes($('id'), OPTION({'value':val}, txt));
where 'val' is an id from the database and 'txt' is its description.
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[mochikit] Re: createDom option example please
Good to know, thanks. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups MochiKit group. To post to this group, send email to mochikit@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/mochikit?hl=en -~--~~~~--~~--~--~---
