Why validation ensures data integrity in Laravel - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to validate that the 'email' field is required.

Laravel

request()->validate(['email' => '[1]']);

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

A'required|email'

B'string'

C'nullable'

D'unique'

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'nullable' allows empty values, which does not ensure data integrity.

The 'required' rule ensures the email field must be present and not empty, which helps keep data complete and valid.

2fill in blank

medium

Complete the code to validate that the 'age' field must be an integer.

Laravel

request()->validate(['age' => '[1]']);

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

A'integer'

B'date'

C'boolean'

D'string'

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'string' allows any text, which can break data integrity.

The 'integer' rule ensures the age is a whole number, preventing invalid data types.

3fill in blank

hard

Fix the error in the validation rule to ensure 'username' is unique in the 'users' table.

Laravel

request()->validate(['username' => '[1]']);

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

A'required|unique'

B'required|unique:users,username'

C'unique:users,username'

D'required|unique:users'

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting 'required' allows empty usernames.

Not specifying the column name may cause errors.

The correct rule combines 'required' and specifies the 'unique' constraint on the 'username' column in the 'users' table.

4fill in blank

hard

Fill both blanks to validate that 'password' is required and confirmed.

Laravel

request()->validate(['password' => '[1]|[2]']);

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

Arequired

Bconfirmed

Cnullable

Dstring

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'nullable' allows empty passwords.

Forgetting 'confirmed' skips confirmation check.

'required' ensures the password is entered, and 'confirmed' checks it matches the confirmation field, maintaining data integrity.

5fill in blank

hard

Fill all three blanks to validate 'title' is required, a string, and max 255 characters.

Laravel

request()->validate(['title' => '[1]|[2]|[3]:255']);

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

Arequired

Bstring

Cmax

Dmin

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'min' instead of 'max' changes the validation logic.

Omitting 'string' allows non-text data.

'required' ensures the title is present, 'string' checks it is text, and 'max:255' limits length to keep data consistent.