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Laravel Eloquent ORM Quiz

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Question 1/15

Which method would you use to update timestamp columns but not any other columns of the record in Eloquent?

Select your answer

::timestamps()

::updateTimestamps()

::touch()

::push()

Question 2/15

If you want a relationship to always load by default when querying a model, which feature in Eloquent would you use?

Select your answer

Queriers

Global Scopes

Eager loading using the

$with

property

Model Observers

Question 3/15

You have a function in a model showcasing a hasOne relation. What should the corresponding foreign key look like by default?

Select your answer

model_id

id_{table}

{model}_id

{table}_id

Question 4/15

To mass assign attributes in Eloquent and bypass the mass assignment protection, which method should be used?

Select your answer

update()

fill()

create()

forceFill()

Question 5/15

What function in Eloquent is used to append computed values to serialized form queries?

Select your answer

add()

withHelpers()

merge()

append()

Question 6/15

In Eloquent relationships, how do you redefine the primary key that a parent table references in a

belongsTo

relationship?

Select your answer

Use custom foreign key constraints in database migrations

Override the localKey method

Set a different foreign key constraint in the parent table

Specify a second parameter in the

belongsTo

definition

Question 7/15

How can you enforce soft deletes on an Eloquent model?

Select your answer

Implement an interface named SoftDeletesInterface

Add a deleted_at column to the database and trait use HasSoftDeletes

Set a global scope for soft deletes

Manually filter out deleted records in the query

Question 8/15

In Laravel Eloquent, which method can be used to check if at least one record exists in a query result?

Select your answer

::check()

::exists()

::first()

::has()

Question 9/15

Which Eloquent feature allows tracking of changes in data for auditing purposes?

Select your answer

Model Observers

Timestamps

Global Scopes

Soft deletes

Question 10/15

When creating a many-to-many relationship in Eloquent, which of the following pivot table requirements is true?

Select your answer

The table must have an 'id' column for foreign keys.

The table must contain both primary keys as columns, the first prefixed by its related model.

The pivot table name must be alphabetical order of the related models' names separated by an underscore.

The table must include a 'type' column to distinguish relationships.

Question 11/15

How do you retrieve a paginated result set in Laravel Eloquent?

Select your answer

Calling the

::paginate()

method

Executing the

::first()

tag

Using the

::chunks()

method

Applying the

::group()

method

Question 12/15

How do you define a relationship in a Laravel Eloquent model?

Select your answer

By setting a static property

Utilizing the

belongsTo

hasOne

hasMany

, etc. methods

Using scopes

Adding it to a controller

Question 13/15

What is the purpose of accessors in Laravel Eloquent Models?

Select your answer

To automatically parse incoming requests

To validate data before applying filters

To modify data before it's saved to the database

To modify data before it is returned to the application

Question 14/15

In an Eloquent relationship, how would you access intermediate table columns?

Select your answer

Call

pivotColumn()

directly on the collection

Access them using the

pivot

property on the related model

Define accessors in the model

Use the

::pluck()

method

Question 15/15

How would you define a custom timestamp name instead of using "created_at" or "updated_at"?

Select your answer

Update default in config file

Override static methods

createTimestamps()

and

updateTimestamps()

Set timestamps property

Use the

const CREATED_AT

and

UPDATED_AT

definitions in the model class

Your Results

You did not answer any questions correctly.

Your Answers

Question 1/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which method would you use to update timestamp columns but not any other columns of the record in Eloquent?

Available answers

::timestamps()

::updateTimestamps()

::touch()

::push()

The

::touch()

method only updates the timestamp fields of an Eloquent model with the current timestamps and doesn't alter other columns.

Question 2/15

😊 Your answer was correct 🙁 Your answer was incorrect

If you want a relationship to always load by default when querying a model, which feature in Eloquent would you use?

Available answers

Queriers

Global Scopes

Eager loading using the <pre><code>$with</code></pre> property

Model Observers

Eloquent models that always need to have certain relationships eager-loaded can define a

$with

property to specify these relationships.

Question 3/15

😊 Your answer was correct 🙁 Your answer was incorrect

You have a function in a model showcasing a hasOne relation. What should the corresponding foreign key look like by default?

Available answers

model_id

id_{table}

{model}_id

{table}_id

By default, the foreign key for a

hasOne

relation is the singular of the related model followed by _id, assuming the primary key is 'id'.

Question 4/15

😊 Your answer was correct 🙁 Your answer was incorrect

To mass assign attributes in Eloquent and bypass the mass assignment protection, which method should be used?

Available answers

update()

fill()

create()

forceFill()

The

forceFill()

method fills the model with an array of attributes, bypassing protection against mass assignment.

Question 5/15

😊 Your answer was correct 🙁 Your answer was incorrect

What function in Eloquent is used to append computed values to serialized form queries?

Available answers

add()

withHelpers()

merge()

append()

The

append()

method allows you to append computed attributes to the model's array and JSON representations.

Question 6/15

😊 Your answer was correct 🙁 Your answer was incorrect

In Eloquent relationships, how do you redefine the primary key that a parent table references in a <pre><code>belongsTo</code></pre> relationship?

Available answers

Use custom foreign key constraints in database migrations

Override the localKey method

Set a different foreign key constraint in the parent table

Specify a second parameter in the <pre><code>belongsTo</code></pre> definition

To redefine the primary key in a

belongsTo

relation, you specify it as a second parameter in the

belongsTo

function.

Question 7/15

😊 Your answer was correct 🙁 Your answer was incorrect

How can you enforce soft deletes on an Eloquent model?

Available answers

Implement an interface named SoftDeletesInterface

Add a deleted_at column to the database and trait use HasSoftDeletes

Set a global scope for soft deletes

Manually filter out deleted records in the query

To enable soft deletes, add a deleted_at column to the table and use the

HasSoftDeletes

trait within the model.

Question 8/15

😊 Your answer was correct 🙁 Your answer was incorrect

In Laravel Eloquent, which method can be used to check if at least one record exists in a query result?

Available answers

::check()

::exists()

::first()

::has()

The

::exists()

method checks if a record or records matching the constraints exist, returning true or false.

Question 9/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which Eloquent feature allows tracking of changes in data for auditing purposes?

Available answers

Model Observers

Timestamps

Global Scopes

Soft deletes

Model Observers in Laravel Eloquent can be used to observe changes on specific events like updating or deleting, making them useful for creating an audit trail.

Question 10/15

😊 Your answer was correct 🙁 Your answer was incorrect

When creating a many-to-many relationship in Eloquent, which of the following pivot table requirements is true?

Available answers

The table must have an 'id' column for foreign keys.

The table must contain both primary keys as columns, the first prefixed by its related model.

The pivot table name must be alphabetical order of the related models' names separated by an underscore.

The table must include a 'type' column to distinguish relationships.

The convention for pivot table names in Eloquent requires that the table name be the alphabetical order of the related model names separated by an underscore.

Question 11/15

😊 Your answer was correct 🙁 Your answer was incorrect

How do you retrieve a paginated result set in Laravel Eloquent?

Available answers

Calling the <pre><code>::paginate()</code></pre> method

Executing the <pre><code>::first()</code></pre> tag

Using the <pre><code>::chunks()</code></pre> method

Applying the <pre><code>::group()</code></pre> method

The

::paginate()

method in Eloquent returns paginated results, providing parameters to define how many records per page you want.

Question 12/15

😊 Your answer was correct 🙁 Your answer was incorrect

How do you define a relationship in a Laravel Eloquent model?

Available answers

By setting a static property

Utilizing the <pre><code>belongsTo</code></pre>, <pre><code>hasOne</code></pre>, <pre><code>hasMany</code></pre>, etc. methods

Using scopes

Adding it to a controller

Relationships in Eloquent are defined using methods like

belongsTo

hasOne

hasMany

, etc., in the model class.

Question 13/15

😊 Your answer was correct 🙁 Your answer was incorrect

What is the purpose of accessors in Laravel Eloquent Models?

Available answers

To automatically parse incoming requests

To validate data before applying filters

To modify data before it's saved to the database

To modify data before it is returned to the application

Accessors are methods in Eloquent Models that modify the model's data when it is retrieved from the database, thereby providing controlled data manipulation.

Question 14/15

😊 Your answer was correct 🙁 Your answer was incorrect

In an Eloquent relationship, how would you access intermediate table columns?

Available answers

Call <pre><code>pivotColumn()</code></pre> directly on the collection

Access them using the <pre><code>pivot</code></pre> property on the related model

Define accessors in the model

Use the <pre><code>::pluck()</code></pre> method

When dealing with many-to-many relationships, Eloquent allows access to pivot table columns via the

pivot

property on the model instances.

Question 15/15

😊 Your answer was correct 🙁 Your answer was incorrect

How would you define a custom timestamp name instead of using "created_at" or "updated_at"?

Available answers

Update default in config file

Override static methods <pre><code>createTimestamps()</code></pre> and <pre><code>updateTimestamps()</code></pre>

Set timestamps property

Use the <pre><code>const CREATED_AT</code></pre> and <pre><code>UPDATED_AT</code></pre> definitions in the model class

To customize timestamps in Eloquent Models, you can define the

CREATED_AT

and

UPDATED_AT

constants within the model class.