[OpenLayers-Users] OpenLayers.Request problem;
where is the data?
Tim Schaub
tschaub at opengeo.org
Mon Nov 3 16:41:23 EST 2008
Hey-
Tim Schaub wrote:
> Hey-
>
> Lehtonen, Mika wrote:
>> Hi again,
>> using $_REQUEST (with your snippet), I get this. What's that?
>>
>> array(2) {
>> ["__utma"]=>
>> string(54) "81555458.1737773788.1225666548.1225666548.1225666548.1"
>> ["__utmz"]=>
>> string(69)
>> "81555458.1225666548.1.1.utmccn=(direct)|utmcsr=(direct)|utmcmd=(none)"
>> }
>
> Those are cookie values.
>
> We (or I at least) can only help you out if you post code (preferably
> legible).
>
> Thanks,
> Tim
>
>> - mika -
>>
>> Lehtonen, Mika kirjoitti:
>>> Hi Tim,
>>>
>>> tested that. I get this: array(0) { }
>>>
If you really are doing exactly what I put below (creating a simple
my.pyp thingy and POSTing using that exact syntax), then you could be
having a character encoding issue.
I don't know enough about PHP to know what they expect or handle - or
how your installation is configured or what character set your browser
may be using, but you might have to specify your charset in the
Content-Type header:
var req = OpenLayers.Request.POST({
url: "my.php",
data: OpenLayers.Util.getParameterString({foo: "bar"}),
headers: {
"Content-Type":
"application/x-www-form-urlencoded; charset=utf-8"
}
});
If you are still having trouble, you'll probably want to spend some time
with curl, RestTest (FF2 only), LiveHTTPHeaders, and/or other tools to
examine exactly what is going on.
Also, in your first post (to this list), you were using an object as the
data value. This needs to be a form-encoded string. Note that I am
using the OpenLayers.Util.getParameterString function above to get a
form-encoded string from an object.
Tim
>>> I am trying to create a SLD on server side for Geoserver, based on
>>> what has been selected on client side. So I have quite a huge number
>>> (couple of thousands) of polygon regions of which an end user can
>>> choose from (with a "tool"). Chosen polygons should be presented with
>>> different style. So I decided to do that using wms. Unfortunately, if
>>> I create my SLD on client side and send it server by using GET, the
>>> request is way too long.
>>>
>>> Basically, an array of certain selected polygon attributes POSTED to
>>> server, would be enough.
>>>
>>> - mika -
>>>
>>> Tim Schaub kirjoitti:
>>>
>>>> Hey-
>>>>
>>>> Can you write (preferably not all on one line) what you are doing
>>>> again to make the request? If you are setting the content type,
>>>> include that. Also, note that you can use the POST function and
>>>> that you don't need the new keyword. In addition, note that params
>>>> are about GET and data is about POST.
>>>>
>>>> I just set up PHP here and confirmed that the following works:
>>>>
>>>> var req = OpenLayers.Request.POST({
>>>> url: "my.php",
>>>> data: OpenLayers.Util.getParameterString({foo: "bar"}),
>>>> headers: {
>>>> "Content-Type": "application/x-www-form-urlencoded"
>>>> }
>>>> })
>>>>
>>>>
>>>> The content of my.php:
>>>>
>>>> <?php var_dump($_POST); ?>
>>>>
>>>>
>>>> What I see in the response:
>>>>
>>>> array(1) {
>>>> ["foo"]=>
>>>> string(3) "bar"
>>>> }
>>>>
>>>>
>>>> The same answer is given here:
>>>> http://openlayers.org/pipermail/users/2008-October/008483.html
>>>>
>>>> I've put this example up on the Request wiki page:
>>>> http://trac.openlayers.org/wiki/Request#Ex.7:IssueaPOSTrequestwithform-encodeddata.
>>>>
>>>>
>>>> And, this is now a FAQ:
>>>> http://faq.openlayers.org/ajax/how-do-i-post-form-encoded-data/
>>>>
>>>> Good luck,
>>>> Tim
>>>>
>>>> Lehtonen, Mika wrote:
>>>>
>>>>> Actually I already tested that. Also setting the Content-length and
>>>>> the Connection Close. I haven't been testing this with other
>>>>> browsers than FireFox. It seems that the POST method isn't
>>>>> responding in any way. Parameters attached to the request however
>>>>> seem to be working just fine.
>>>>>
>>>>> There was another issue, which might be the same you pointed to me,
>>>>> but the symtons are closer to mine:
>>>>>
>>>>> http://n2.nabble.com/OpenLayers.Request.POST-GET-errors-td1304742.html
>>>>>
>>>>> - mika -
>>>>>
>>>>>
>>>>> Arnd Wippermann kirjoitti:
>>>>>
>>>>>> Perhaps this solves the problem
>>>>>>
>>>>>> headers: {
>>>>>> "Content-Type": "application/x-www-form-urlencoded"}
>>>>>>
>>>>>> http://n2.nabble.com/OpenLayers.Request-POST-and-IE-6-7-issues-tt1384863.htm
>>>>>>
>>>>>> l#a1395114
>>>>>>
>>>>>>
>>>>>> Arnd Wippermann
>>>>>>
>>>>>>
>>>>>> -----Ursprüngliche Nachricht-----
>>>>>> Von: users-bounces at openlayers.org
>>>>>> [mailto:users-bounces at openlayers.org] Im
>>>>>> Auftrag von Lehtonen, Mika
>>>>>> Gesendet: Montag, 3. November 2008 10:01
>>>>>> An: OpenLayers
>>>>>> Betreff: [OpenLayers-Users] OpenLayers.Request problem; where is
>>>>>> the data?
>>>>>>
>>>>>> Hi,
>>>>>> I am trying to send a POST request from OL with the following snippet:
>>>>>>
>>>>>> new OpenLayers.Request.issue({method: 'POST', url:'sld.php',
>>>>>> params:{abc:'def', cba:'fed'}, data:{ghi: 'jkl', ihg: 'lkj'},
>>>>>> success: function(){alert('Succeeded!');}, failure:
>>>>>> function(){alert('Did not succeed.');}, callback:
>>>>>> function(){alert('Calling back');}});
>>>>>>
>>>>>> $_POST array in sld.php stays empty. In $_GET array I can find the
>>>>>> params: def and fed. How can I get touch with the data? Am I doing
>>>>>> something
>>>>>> wrong here?
>>>>>>
>>>>>> - mika -
>>>>>>
>>>>>> _______________________________________________
>>>>>> Users mailing list
>>>>>> Users at openlayers.org
>>>>>> http://openlayers.org/mailman/listinfo/users
>>>>>>
>>>>>>
>>>>> _______________________________________________
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>>>>
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>
>
--
Tim Schaub
OpenGeo - http://opengeo.org
Expert service straight from the developers.
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