partial-locals-lab-v-000's Introduction

Partials with Locals Lab

Objectives

Use the locals keyword
Understand why using instance variables in partials is bad
Use a partial iterating over a collection passing in the local
Use a partial form another controller with a local

Overview

Your team's lead engineer looked over the codebase and asked you to not refer to instance variables in your partials, but rather to pass through local variables. That way your code will be more explicit about its dependencies.

Your team lead also asked for a couple new features.

Display all students on the classroom show page, and stop displaying a special note about the oldest student. The lead engineer, being old himself, thinks that this isn't polite.
Add some search functionality so that a user can search for a classroom and see that classroom's show page. He requests that we use partials to render each matching result's classroom information.

Instructions

Refactor the _form.html.erb partial to pass through the form object as a local. Because the form block will start on both the students/new and students/edit pages, let's rename our partial from _form.html.erb to _fields.html.erb as now it will contain all of the fields (and the submit button).
Refactor the _student.html.erb partial to pass through each student as a local.
On the classroom show page, iterate through each classroom's students and display each of them using our _student.html.erb partial with locals.
Add in search functionality such that users can search for a course by subject and see all matching results. The results should be displayed by rendering a classrooms/_classroom.html.erb partial.