Final Answer:
The method you need to invoke inside a View Rendering form to ensure only its controller reacts to the post is "form_tag".
Step-by-step explanation:
When you utilize the "form_tag" method within a View Rendering form, you're essentially specifying the form's action and method, ensuring that the form data gets directed solely to the associated controller. This method generates an HTML form element, specifying the controller and action where the form data should be sent upon submission.
By invoking "form_tag," you're effectively binding the form's submission behavior explicitly to the designated controller, ensuring that only that particular controller reacts to the post request originating from that form. This helps maintain control and direct the flow of data within the application, preventing interference or unintended processing by other controllers.
This method provides a straightforward and reliable means to define the target of form submissions in Rails applications. It helps maintain the integrity of the application's functionality by ensuring that the specified controller accurately handles the incoming form data without interference from other controllers.
In essence, employing "form_tag" in the View Rendering form establishes a clear path for data transmission, maintaining the expected behavior of the application and contributing to its overall robustness and security.