Ruby On Rails Lesson
Eliminating Duplication with Layouts
Now that we’ve replaced the variable part of the page titles with ERb, each of our pages looks something like this:
In other words, all our pages are identical in structure, including the contents of the title tag, with the sole exception of the material inside the body tag.
In order to factor out this common structure, Rails comes with a special layout file called application.html.erb, which we renamed in Section 3.3.1 and which we’ll
To get the layout to work, we have to replace the default title with the Embedded Ruby from the examples above:
The resulting layout appears in Listing 3.25.
Listing 3.25 The sample application site layout.