SAPUI5 - Save single property from OData model into a variable

[pearlalex]

I'm trying to save a property from an OData model into a variable like this:

var myModel = this.getView().getModel();
var value = myModel.getProperty("/ZcountGeneralSet('')/Werks");
// value returns undefined

I'm wondering if the syntax for empty parameter (' ') is wrong, because it works if I pass in the number that "Werks" shall return (7001). The property can also be retrieved when calling ZcountGeneralSet(' ')/Werks in the odata service in a browser, but not in sapui5.

Is there another way or another syntax to retrieve the property in sapui5?

(Maybe another syntax for passing empty parameter?)

[junwu]

check in dev tool to see what is inside of your model. if you see ZcountGeneralSet(' ') as an obj in your model, you should be able to get it.

[pearlalex]

I can only see ZcountGeneralSet('7001') as an object inside dev tool, not with empty parameters. But browser returns the right value even without the 7001-parameter. Strange, or? (We don't know what the parameters shall be before we call the function without the parameter..)

[junwu]

what's your model version?

the call you made in browser, it goes to gateway to retrieve data.

the other case, you are just asking from the model.....

[pearlalex]

It's set as version 2.0 in manifest.json

[junwu]

use "read" to call that url first, then I think you get that value from model