Working with Object Tables in SAP Mobile Development Kit

[Will3]

Hi All!
I am having trouble understanding, and gaining access to the values within object tables. My current project uses a 'checklist' which uses the object table as its main component, and each 'item' in the checklist has a boolean field in its ODATA called 'isMandatory'.
Ultimately, I need to be able to submit this checklist using a submit button at the bottom of the page, ONLY IF all items that are Mandatory have been populated. I just have no idea how to access those values...

I have attached a text file with the page structure taken. Currently, the 'isMandatory' value is being held in the statusText field.

Any help would be greatly appreciated!

[bill_froelich · Accepted solution]

Here is an example of calling read with a filter and looping over the results.

export default function ValidateItems(context) {
    let pageProxy = context.getPageProxy();
    let clientData = pageProxy.getClientData();
    var valid = true;
    return context.read('/MDKApp/Services/Sample.service', 'MyEntitySet', [], `$filter=isMandatory eq 'X'`).then((results) => {
        if (results) {
            for (let i = 0; i < results.length; i++) {
                let item = results.getItem(i);
                // Validate item properties are set, can do as a single check or by muiltiple checks on the item
                if (item.prop1 && item.prop2) {
                    valid = true;
                } else {
                    valid = false;
                    // Display an error message? and quit loop?
                }
            }
            return valid;
        }
    });
}

The example is for the validation check is just a simple check.  You can expand that based on your requirements and decide what you want to do when a validation failure occurs. 

[Will3 · Accepted solution]

Thank you! I've recently got the debugger working, and I can see exactly how this works 🙂 Thanks Bill!