sap.m.Tree ChildNodes Failure in Mockserver with MockData

[HaShLo]

Hi everyone,

sap.m.Tree dont show the childnodes of the parentnodes with a mockserver + mockdata, instead it says technical error with log:
{ "message": "HTTP request failed", "headers": { "Content-Type": "application/json;charset=utf-8", "DataServiceVersion": "2.0" }, "statusCode": "400", "statusText": "Bad Request", "responseText": "{\"error\":{\"code\":400,\"message\":{\"lang\":\"en\",\"value\":\"Invalid system query options value\"}}}" }

Debugging result was, that it request this path at expand the parentnode:
'Modules?$filter=parentId%20eq%2013&$skip=0&$top=1.7976931348623157e+308'

1.7976931348623157e+308????? -> it is this line in Tree.js: aContexts = oBinding.getContexts(0, Number.MAX_VALUE);

Dirty Solution was to implement this line from Tree.js in own Controller:
// Get all nodes.
aContexts = oBinding.getContexts(0, Number.MAX_VALUE); to
aContexts = oBinding.getContexts(0, 10000);

Changed Code in my own Controller:
` Tree.prototype.updateItems = function(sReason) {
// Reuse the ListBinding from ManagedObject.updataAggregation
var oBindingInfo = this.getBindingInfo("items"),
oBinding = this.getBinding("items"),
fnFactory = oBindingInfo.factory,
aContexts;

	// Update a single aggregation with the array of contexts. Reuse existing children
	// and just append or remove at the end, if some are missing or too many.
	function update(oControl, aContexts) {
		var aChildren = oControl.getItems() || [],
			oContext,
			oClone;
		if (aChildren.length > aContexts.length) {
			for (var i = aContexts.length; i < aChildren.length; i++) {
				oControl.removeItem(aChildren[i]);
				aChildren[i].destroy("KeepDom");
			}
		}
		for (var i = 0; i < aContexts.length; i++) {
			oContext = aContexts[i];
			oClone = aChildren[i];
			if (oClone) {
				oClone.setBindingContext(oContext, oBindingInfo.model);
			} else {
				oClone = fnFactory(oControl.getId() + "-" + i, oContext);
				oClone.setBindingContext(oContext, oBindingInfo.model);
				oControl.addItem(oClone);
			}
		}
	}

	// Get all nodes.
	aContexts = oBinding.getContexts(0, 10000);

	// If factory function is used without extended change detection, destroy aggregation
	if (!oBindingInfo.template) {
		this.destroyItems();
	}
	update(this, aContexts);

};`

OpenUI5 version: 1.45.0-SNAPSHOT

Browser/version (+device/version): Google Chrome Version 54.0.2840.71 m (64-bit)

Steps to reproduce the problem:

1. Create a new Project with mockserver and mockdata
2. One Entity in metadata.xml with Properties: drillstate, parentid, hierarchyLevel, id
3. Create a sap.m.Tree in View with Parameters:
   items="{ path : '/Entities', parameters : { treeAnnotationProperties : { hierarchyLevelFor : 'hierarchyLevel', hierarchyNodeFor : 'id', hierarchyParentNodeFor : 'parentId', hierarchyDrillStateFor : 'drillState' } } }"

What is the expected result?
Show the ChildNodes without a failure

What happens instead?
Technical Error (Log Message see above)

Any other information? (attach screenshot if possible)

MockServer-dbg.js:

Tree.js:

MockData JSON File:

DIRTY SOLUTION

OwnController.js:

Result:

Please fix it, thanks...

Best regards

HaShLo

[DMihaylova]

Hi @HaShLo ,

Thank you for reporting the ticket.
Internal reference: #1680294243.

Kind Regards,
Diana, SAPUI5 Dispatcher

[awui]

Hi @HaShLo,
could you please provide the link to your system or snippix so that we can debug and fix the issue?

Thanks and regards,
Wenqian
(SAP UI5 Dev)

[HaShLo]

Hi @HaShLo,
could you please provide the link to your system or snippix so that we can debug and fix the issue?
Thanks and regards,
Wenqian
(SAP UI5 Dev)

Hi awui,

i dont know what you mean.

If you want the code , i can paste it here:

a view.xml:

<Tree id="Tree" enableBusyIndicator="false" mode="MultiSelect" items="{ path : '/Modules', parameters : { treeAnnotationProperties : { hierarchyLevelFor : 'hierarchyLevel', hierarchyNodeFor : 'id', hierarchyParentNodeFor : 'parentId', hierarchyDrillStateFor : 'drillState' } } }" > <StandardTreeItem title="{text}"/> </Tree>

make a odata model then one entity with properties above at treeAnotationProperties.
All this things do it on mockserver and mockdata( i dont know if you have it to on a real server you must look). Thats it to reproduce.

You must only change:

// Get all nodes.
aContexts = oBinding.getContexts(0, Number.MAX_VALUE);

to

// Get all nodes.
aContexts = oBinding.getContexts(0, 10000);

in Tree.js...

Thats the Fix i think !

Thx