Chapter 4. Action Controller Section 4.0. Introduction Accessing Form Data from a Controller Changing an Application's Default Page Clarifying Your Code with Named Routes Configuring Customized Routing Behavior Displaying Alert Messages with Flash Extending the Life of a Flash Message Following Actions with Redirects Generating URLs Dynamically Inspecting Requests with Filters Logging with Filters Rendering Actions Restricting Access to Controller Methods Sending Files or Data Streams to the Browser Storing Session Information in a Database Tracking Information with Sessions Using Filters for Authentication Previous Next