Tag: Javascript

Microsoft added with Service Pack 1 a new function called “CalculateRollupField” in Dynamics CRM (v 8.1) which enables us to recalculate a rollup field on demand.
I will show you here how you can use it in Javascript with a http request against the WebApi.

The CalculateRollupField function inside the webrequest needs a few parameter to know which rollup field you want to to calulate:

• The EntitySetName of the target record.
  I wrote here how you can get the EntitySetName from the Metadata with an webrequest too.
• The GUID of the target record.
• The schema name of the target field.

CalculateRollupField in Javascript:

function calcRollupField(strTargetEntitySetName, strTargetRecordId, strTargetFieldName)
{
    strTargetRecordId = strTargetRecordId.replace("{", "").replace("}", "");
    var req = new XMLHttpRequest();
    req.setRequestHeader("OData-Version", "4.0");
    req.setRequestHeader("OData-MaxVersion", "4.0");
    req.open("GET", Xrm.Page.context.getClientUrl() + "/api/data/v8.2/" +
        "CalculateRollupField(Target=@p1,FieldName=@p2)?" +
        "@p1={'@odata.id':'" + strTargetEntitySetName + "(" + strTargetRecordId + ")'}&" +
        "@p2='" + strTargetFieldName + "'", true);

    req.onreadystatechange = function ()
    {
        if (this.readyState === 4)
        {            
            req.onreadystatechange = null;
            if (this.status === 200)
            {
                var results = JSON.parse(this.response);
            }
            else
            {
                Xrm.Utility.alertDialog(this.statusText);
            }
        }
    };    
    req.send(JSON.stringify({}));
}

The answer of the webservice for the CalculateRollupField function contains the value for the target field, the date of the last calculation and its state.

Last week I got an error during a solution export, but the error message wasn’t very helpfull. I then had the idea to export the solution via Javascript with the hope to get an more meanfull error.
Fortunately it was so and by the way I’ve learned how to export a solution via Javascript.

//Just to make the selection oh the target version easier
var targetVersions = {
    v_7_0 : "7.0.0.0",
    v_7_1 : "7.1.0.0",
    v_8_0 : "8.0.0.0",
    v_8_1 : "8.1.0.0",
    v_8_2 : "8.2.0.0",
};

function exportSolution(strSolutionName, asManaged, strTargetVersion, objParameter)
{
    var parameters = {
        SolutionName: strSolutionName,
        Managed: asManaged,
        TargetVersion: strTargetVersion,
        ExportAutoNumberingSettings: objParameter.ExportAutoNumberingSettings || false,
        ExportCalendarSettings: objParameter.ExportCalendarSettings || false,
        ExportCustomizationSettings: objParameter.ExportCustomizationSettings || false,
        ExportEmailTrackingSettings: objParameter.ExportEmailTrackingSettings || false,
        ExportGeneralSettings: objParameter.ExportGeneralSettings || false,
        ExportMarketingSettings: objParameter.ExportMarketingSettings || false,
        ExportOutlookSynchronizationSettings: objParameter.ExportOutlookSynchronizationSettings || false,
        ExportRelationshipRoles: objParameter.ExportRelationshipRoles || false,
        ExportIsvConfig: objParameter.ExportIsvConfig || false,
        ExportSales: objParameter.ExportSales || false,
        ExportExternalApplications: objParameter.ExportExternalApplications || false,
    };

	var req = new XMLHttpRequest();
	req.open("POST", Xrm.Page.context.getClientUrl() + "/api/data/v8.0/ExportSolution", true);
	req.setRequestHeader("OData-Version", "4.0");
	req.setRequestHeader("OData-MaxVersion", "4.0");
	req.setRequestHeader("Accept", "application/json");
	req.setRequestHeader("Content-Type", "application/json; charset=utf-8");
	req.onreadystatechange = function ()
	{
		if (this.readyState === 4)
		{
			req.onreadystatechange = null;
			if (this.status === 200)
			{
                //you will get a download notification
			}
			else
			{
				Xrm.Utility.alertDialog(this.statusText);
			}
		}
	};
	req.send(JSON.stringify(parameters));
}