Debug and Rails Environments

The profiles in this section will be the first truly dynamic pages in our application. Although the view will exist as a single page of code, each profile will be customized using information retrieved from the site’s database. As preparation for adding dynamic pages to our sample application, now is a good time to add some debug information to our site layout (Listing 7.1). This displays some useful information about each page using the built-in debug method and params variable (which we’ll learn more about in Section 7.1.2).

To make the debug output look nice, we’ll add some rules to the custom stylesheet created in Chapter 5, as shown in Listing 7.2.

Listing 7.2 Adding code for a pretty debug box, including a Sass mixin.
app/assets/stylesheets/custom.css.scss

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