Calling server method from another server method

Question

Hello All, 
 
 From one server method (Method A ), I'm calling another server method (Method B) . 
 From (Method B) returning inn.newError("Error"); 
 And in calling method (Method A) checking result has error but it is not working. Error message is showing directly on UI. 
 Item X = inn.applyMethod(" Method_B ",""); 
 if(X.isError()) 
 { 
 //execute xlogic 
 } 
 else 
 { 
 //execute y logic 
 } 
 But if case is not executing & error message directly displaying on UI. 
 
 Regards, 
 Suhas

cogres · Accepted Answer

Hi Suhas, 
 see my reply below. You can pass any information from Method A to Method B by setting properties on the item you apply the method on: 
 
 // we have an Innovator object called inn 
 var methodItem = inn.newItem("Method"); 
 methodItem.setProperty("some_info_for_method_b", "value for that info"); 
 var resultItem = methodItem.apply("Method B"); 
 
 You can then access some_info_for_method_b in Method B with 
 string info = this.getProperty("some_info_for_method_b", "") 
 Of course, you can set as many of those auxiliary properties as you like, or pass all method arguments in one property, separated by commas. 
 
 Hope this helps, 
 C

Kate Marsh · Answer

Hi Suhas, 
 The applyMethod function will cause a client-side error dialog to show up. You'll want to use the inn.apply() function instead. 
 Try replacing the line "Item X = etc." from Method A with 
 Item X = inn.newItem("Method", "Method_B"); X = X.apply(); 
 This should make everything else work as is. 
 -Kate

cogres · Answer

Hi there,

you can also just use any method as the apply()-action on any item. Consequently, that item would be "this" in the called method.

I.e.

var methodResult = someItem.apply("Method B");

Hope this helps,

C

EDIT: Just to clear up the confusion with applyMethod(): The second input parameter to applyMethod() is supposed to be a string representation of the dom of the Item you want to be "this" in the method. Hence your approach results in an error, you passed an empty method item.
From the API description:

Parameters

  methodName
   Name of the method.
  body
   Context for the method (method item).

Remarks

The context for the method will be the method item, in the form: <Item type="Method" action="{methodName}">{body}</Item> Note, that only methods that use IOM namespace from .NET (C#, VBScript) can be applied, and methods written in JavaScript cannot be applied.

Calling server method from another server method

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