Question Re: SAPUI5 callFunction not executed in Technology Q&A

SAPUI5 callFunction not executed

jakob_steen-petersen — Wed, 18 Nov 2020 16:53:54 GMT

I have an oData model with an Import Function to check an order. I use this code to call it:

        var oModel = this.getView().getModel();
        oModel.callFunction("/CheckOrder", { "Aufnr" : Order },        
        function(oData, response) { return response;  }, 
                  
        function(oError){} );

But the function os not called? When i check trace i don´t se any calls - not even erronous calls?

What is wrong?

Re: SAPUI5 callFunction not executed

junwu — Wed, 18 Nov 2020 17:44:33 GMT

did you check the api how the call should be?

don't write code by imagination.....

Re: SAPUI5 callFunction not executed

jakob_steen-petersen — Wed, 18 Nov 2020 18:27:27 GMT

Could you please elaborate your comment?

Re: SAPUI5 callFunction not executed

jakob_steen-petersen — Wed, 18 Nov 2020 18:30:59 GMT

It is quite funny to check your profile: allmost all your answers is just stupid comments that do not help anybody... I really cannot understand why you are spending your own and all of ours time?

Re: SAPUI5 callFunction not executed

junwu — Wed, 18 Nov 2020 18:42:13 GMT

check api, is it that hard to under standard?

if you are a abaper, when you call rfc/bapi whatever, how you know what parameter you need to put.... how you do? check api, right?????

Re: SAPUI5 callFunction not executed

maheshpalavalli — Wed, 18 Nov 2020 18:53:06 GMT

Check this documentation here :

https://ui5.sap.com/#/api/sap.ui.model.odata.v2.ODataModel%23methods/callFunction

you can pass parameters like mentioned in the api documentation.

oModel.callFunction("/CheckOrder", {
            method: "GET",
            urlParameters: { "Aufnr" : Order },
            success: function(oData, response) {
                
            }.bind(this), // callback function for success
            error: function(oError) {
                
            }.bind(this)
        });

Thanks,
Mahesh

Re: SAPUI5 callFunction not executed

maheshpalavalli — Wed, 18 Nov 2020 18:55:51 GMT

you can see in the documentation, they have mParameters, it is an object type, so we are passing that as an object to call function, I am rewriting it as below for better understanding.

var mParameters = {
            method: "GET",
            urlParameters: { "Aufnr" : Order },
            success: function(oData, response) {
                
            }.bind(this), // callback function for success
            error: function(oError) {
                
            }.bind(this)
        };
oModel.callFunction("/CheckOrder", mParameters);

Re: SAPUI5 callFunction not executed

jakob_steen-petersen — Wed, 18 Nov 2020 19:41:20 GMT

Arh - now i understand. Thank you it worked.

The only thing i now need to figure out is this: seems like the call is done Async - i need it synchron in order to stop further processing if the response contains a particular value?!

Re: SAPUI5 callFunction not executed

maheshpalavalli — Wed, 18 Nov 2020 19:48:59 GMT

jakob.steen-petersen it will be asynchronous, so you have to write code inside success, or wrap your logic inside a function and call it inside the success handler, it's same like your odata read call, whhhiiich I answered in ur previous question.

https://answers.sap.com/questions/13182744/sapui5-odata-read.html?childToView=13183691#comment-13183691

Re: SAPUI5 callFunction not executed

jakob_steen-petersen — Wed, 18 Nov 2020 19:56:19 GMT

Actually i did write code inside success... For now just a simple Message:

        var oModel = this.getView().getModel();
	        
        oModel.callFunction("/CheckOrder", {
            method: "GET",
            urlParameters: { "Aufnr" : Order },
            success: function(oData, response) {
                
                MessageBox.error(response);   
                
            }.bind(this), // callback function for success
            error: function(oError) {
                
            }.bind(this)

And i get the message - but it is still issued after further processing of code (i have checked by debugging)

Re: SAPUI5 callFunction not executed

maheshpalavalli — Thu, 19 Nov 2020 05:26:01 GMT

jakob.steen-petersen , yes it will go immediately as by default the requests that u do with ui5 odata model is asynchronous, so u should not write any code after the callFunction. Once the request is successful (reaches backend and comes back) then the success handler is called. So You should write all the code inside the success handler or simple put that code u want to call after the call fucntion in a separate function method and call it inside the success handler.