Is "userdata" supported in DHTMLXScheduler?

Scheduler Javascript
#1

Hi,

I’m wondering if “userdata”, which is available in DHTMLXGrid, is also supported in DHTMLXScheduler. Can you please let me know? Thank you in advance for your help!

#2

There is no userdata in scheduler, as you can add custom attributes to xml tags ( json objects ) and they all will be mapped to the properties of event objects ( so you can provide custom data and access it as part of event objects, without userdata )

<event id="1" mydata="2" ... var t = scheduler.getEvent(1).mydata; //2

#3

Thanks! But the reason I was asking specifically about userdata is that this piece of info is per xml, not per event. I guess I could put the same attribute to all the events, but that looks quite redundant to me. Unless I can put it to the “data” tag as an attribute and access it in some way…

#4

Unfurtunately, to access some data from top-level tag the code need to be modified, because by default it doesn’t provide access to the that data.

You can use separate ajax call

[code]dhtmlxAjax.get(“data.xml”, function(loader){
//get custom attribute
var top = loader.doXPath("//data")[0]
var data = top.getAttribute(“mydata”);

  //load scheduler with the same data
  scheduler.parse(loader.xmlDoc.responseText);

})[/code]

#5

Thanks Stanislav! It worked. I’m also wondering if there is an API for updating the scheduler. I’m currently using “clearAll” and then “load”.

#6

Combination of clearAll and load is the expected usecase, does it have some unwanted side-effects?

#7

I’m using with very little data in our scheduler and I don’t see any undesired behavior so far. I was just wondering if it’ll be different when the scheduler is put to production where the data can be quite large.

#8

It scales quite well, but if in any moment you will encounter performance problem - you may consider usage of dynamic mode ( the same reloading logic will continue to work )

docs.dhtmlx.com/doku.php?id=dhtm … al_loading

#9

Thanks! As a matter of fact, I do need to use the dynamic loading which wasn’t implemented earlier.

I found a problem though. I can call ‘scheduler.setLoadMode(“month”);’ without any problem if I do ‘scheduler.load(…)’.

But if I do
dhtmlxAjax.get(url, function(loader) {
…
scheduler.parse(…);
});
as you suggested earlier for another problem I had, I get javascript error “‘undefined’ is null or not an object”.

#10

Can you provide a demo link or some kind of sample, where problem can be checked?

#11

Hi, I couldn’t upload any file to the website but reproducing the problem is quite simple.

  1. Add scheduler.setLoadMode(“month”);
  2. Load xml by
    dhtmlxAjax.get(“events2012.xml”, function(loader){
    //get custom attribute
    //load scheduler with the same data
    scheduler.parse(loader.xmlDoc.responseText);
    });
  3. Load the page on a browser (IE in our case);
  4. The moment you resize the page, you’ll see following javascript error:
    Line: 155
    Error: ‘undefined’ is null or not an object

Debugger shows the exceptin happening at line with underline

scheduler._load=function(a,b){
a=a||this._load_url;
a+=(a.indexOf("?")==-1?"?":"&")+“timeshift=”+(new Date).getTimezoneOffset();
this.config.prevent_cache&&(a+="&uid="+this.uid());var c,b=b||this._date;

…

#12

Try to change your data loading code as

scheduler._load_url = "events2012.xml"; dhtmlxAjax.get(scheduler._load_url, function(loader){ ...

#13

Thanks a lot! It worked. :slight_smile: