Call event function from another method in Controller in SAP

It is advised not to call the event function from any other function but what you can do is refactor the event function implementation in a separate function and call that from any other function as shown below ?

Best Practice Approach

The recommended approach is to create a helper function that contains the actual logic, and then call this helper function from both the event handler and any other methods that need the same functionality. This maintains clean separation of concerns while avoiding direct event function calls.

Example

Here's how to implement this pattern in your SAP UI5 controller ?

BtnPress: function(oEvent) {
    // Separate the implementation in the helper function
    this.btnPressHelper();
},

// Define the helper function with actual logic
btnPressHelper: function() {
    // Your business logic here
    // For example: data validation, service calls, navigation, etc.
    console.log("Button press logic executed");
},

// Call the helper from whichever function you want to get the desired output
PerformSomething: function() {
    // Call the same helper function to reuse the logic
    this.btnPressHelper();
}

Benefits of This Approach

This pattern offers several advantages ?

• Code Reusability: The same logic can be called from multiple places
• Maintainability: Changes to the logic only need to be made in one place
• Clean Architecture: Event handlers remain lightweight and focused
• Testing: Helper functions can be tested independently

Conclusion

By extracting event function logic into separate helper methods, you can maintain clean code architecture while enabling function reusability across your SAP UI5 controller without directly calling event handlers.