Model-backed forms in Ruby on Rails - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start a form for a model instance named @post.

Ruby on Rails

<%= form_with model: [1] do |form| %>
  <!-- form fields here -->
<% end %>

Drag options to blanks, or click blank then click option'

Apost

Bform

CPost.new

D@post

Attempts:

3 left

💡 Hint

Common Mistakes

Using the class name instead of the instance variable.

Using a local variable instead of the instance variable.

The form_with helper uses the model: option with the instance variable @post to create a form tied to that model.

2fill in blank

medium

Complete the code to create a text field for the :title attribute inside the form builder.

Ruby on Rails

<%= form.text_field [1] %>

Drag options to blanks, or click blank then click option'

A:date

B:content

C:title

D:author

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong attribute name.

Omitting the colon before the attribute name.

The text_field helper needs the attribute symbol :title to create a text input for that attribute.

3fill in blank

hard

Fix the error in the form helper call to correctly submit the form.

Ruby on Rails

<%= form_with model: @post, [1]: true do |form| %>
  <!-- form fields -->
<% end %>

Drag options to blanks, or click blank then click option'

Alocals

Blocal

Clocales

Dlocalize

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'local' without the colon.

Using misspelled keys like 'locales' or 'locals'.

The correct option to make the form submit without a page reload is local: true.

4fill in blank

hard

Fill both blanks to create a label and a text field for the :email attribute.

Ruby on Rails

<%= form.label [1] %>
<%= form.text_field [2] %>

Drag options to blanks, or click blank then click option'

A:email

B:name

C:username

D:password

Attempts:

3 left

💡 Hint

Common Mistakes

Using different attributes for label and field.

Forgetting the colon before the attribute name.

Both the label and the text field should use the same attribute symbol :email to connect them properly.

5fill in blank

hard

Fill all three blanks to create a form with a model, a label for :password, and a password field.

Ruby on Rails

<%= form_with model: [1] do |form| %>
  <%= form.label [2] %>
  <%= form.password_field [3] %>
<% end %>

Drag options to blanks, or click blank then click option'

A@user

B:password

D:email

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing attribute symbols for label and field.

Using the wrong instance variable for the model.

The form is for the @user model. The label and password field both use the :password attribute symbol.