4.3 Models, Repositories and Relations

Question 1 of 21

1

Which of the following statements about domain models in Extbase is correct? (1)

Select one or more of the following:

Three different basis objects exist: entity, value object and factory
Properties of models should be accessed and modified directly
A “getter” method should be used to access a property
The visibility of domain model properties in Extbase should be public
All options listed above are wrong

Explanation

Question 2 of 21

1

What is required in an Extbase repository to prevent it from returning deleted records? (1)

Select one or more of the following:

The TypoScript setting setup.tx_extbase.view.hidden = 0 must be set
The query setting setIncludeDeleted(false) must be set
The parameter true must be passed to the repository method findAll()
The parameter true must be passed to the repository method execute()
Nothing: the repository does not return deleted records by default

Explanation

Question 3 of 21

1

What needs to be done in an Extbase repository to include hidden and deleted records in the result set? (1)

Select one or more of the following:

This is not possible. Deleted records are removed from the database
Both query settings setIncludeHidden() and setIncludeDeleted() need to be set to true
Both query settings setIgnoreEnableFields() and setEnableFieldsToBeIgnored() need to be
set appropriately
The TCA configuration ['ctrl']['ignoreEnableFields'] of the table need to be set to true

Explanation

Question 4 of 21

1

Which type of relation is not possible with TCA’s inline field type (IRRE)? (1)

Select one or more of the following:

1:n
n:1
1:1
m:n
IRRE supports all types of relations

Explanation

Question 5 of 21

1

Which property annotation is required to define a relation of type 1:n in your domain model? (1)

Select one or more of the following:

/**
* @var \TYPO3\CMS\Extbase\Persistence\ObjectStorage
*/
/**
* @var \Foo\Bar\Domain\Model\Post
*/
/**
* @var \TYPO3\CMS\Extbase\Persistence\ObjectStorage<\Foo\Bar\Domain\Model\Post>
*/
/**
* @var \TYPO3\CMS\Extbase\Persistence\ObjectStorage[\Foo\Bar\Domain\Model\Post]
*/
/**
* @var \TYPO3\CMS\Extbase\Persistence\ObjectStorage<1:n><\Foo\Bar\Domain\Model\Post>
*/

Explanation

Question 6 of 21

1

Which repository method tests whether the value of a domain model property, which has a m:n relation, contains a specific value? (1)

Select one or more of the following:

in()
between()
contains()
is()
inbetween()

Explanation

Question 7 of 21

1

Which repository method tests whether the value of a domain model property is included in a list of possible
values? (1)

Select one or more of the following:

in()
between()
contains()
is()
inbetween()

Explanation

Question 8 of 21

1

What needs to be configured to instruct all methods of a repository to return results ordered by a specific property? (1)

Select one or more of the following:

This can be achieved in a TypoScript file.
By passing the parameter $order in the method’s signature
By adding the @sort annotation to the domain model
By setting the $defaultOrderings property in the repository class
By adding an appropriate sortby property to the TCA

Explanation

Question 9 of 21

1

Which statements about the following code snippet are correct? (2)
<?php
namespace Vendor\MyExtension\Domain\Repository;
use \TYPO3\CMS\Extbase\Persistence\Repository;
use \TYPO3\CMS\Extbase\Persistence\QueryInterface;

class ExampleRepository extends Repository
{
protected $defaultOrderings = [
'title' => QueryInterface::ORDER_DESCENDING
];
...
}

Select one or more of the following:

Records read from this repository are sorted by their title field in descending order by default
The additional configuration sortBy is required in the TCA of the repository to set the default sort order
The property $defaultOrderings has no effect by default
The constant ORDER_ASCENDING can be used instead of ORDER_DESCENDING to sort in ascending order
If the property $defaultOrderings would not exist, the repository would use the sorting
defined in the TCA

Explanation

Question 10 of 21

1

Assuming two domain objects Book and Chapters exist, which have a 1:n-relation. How can you determine all chapters of a book which match a search string? (1)

Select one or more of the following:

By searching in the Book repository and by using in() on the property chapters
By searching in the Book repository and by using contains() on the property chapters
By searching in the Chapters repository and by using in() on the property books
By searching in the Chapters repository and by using contains() on the property books
By searching in the Chapters repository and iterating all records to find the appropriate
chapters

Explanation

Question 11 of 21

1

What needs to be configured to access records from the repository stored on page UID = 0? (1)

Select one or more of the following:

Nothing needs to be configured as this is the default
The query setting in the repository must be set explicitly: setStoragePageIds([0])
This feature needs to be enabled in the repository explicitly: setEnableRootPage(true)
When the query is executed, the page UID must be passed as an argument in the function call: execute(0)
Records on page UID = 0 can not be accessed as a general rule

Explanation

Question 12 of 21

1

What needs to be configured to access all records, regardless of which page they are stored on? (1)

Select one or more of the following:

Nothing needs to be configured as this is the default
The TypoScript configuration persistence.storagePid needs to be set to all
The page restriction needs to be lifted by using the Restriction Builder
The query setting in the repository must be set explicitly: setRespectStoragePage(false)

Explanation

Question 13 of 21

1

How can a custom extension access the fe_users database table? (2)

Select one or more of the following:

By extending the domain model TYPO3\CMS\Extbase\Domain\Model\FrontendUser
By adding the mapping as TypoScript
By adding the mapping as TSconfig
By extending the fe_users TCA appropriately
The only option is to frequently copy the content of table fe_users into a custom table via a cron-job

Explanation

Question 14 of 21

1

Which statement about the Persistence Manager is correct? (1)

Select one or more of the following:

The Persistence Manager is loaded in the controller automatically and can be used in custom scripts
The Persistence Manager is loaded in the repository automatically and can be used in custom scripts
By using the Persistence Manager, a single object or all objects can be made persistent
The Persistence Manager is an internal method of Extbase which is not part of the public API
The Persistence Manager is of type “prototype”

Explanation

Question 15 of 21

1

How can you access TypoScript settings within a domain model? (1)

Select one or more of the following:

Via $this->setting
Via $this->settings
Via $this->typoscript
Via $this->config
None of the options above

Explanation

Question 16 of 21

1

What is the recommended way to access TypoScript settings in a repository? (1)

Select one or more of the following:

It’s recommended to access TypoScript configuration from the controller only
It’s recommended to access TypoScript configuration by using the Object Manager
It’s recommended to access TypoScript configuration by using the Settings Manager
TypoScript settings can be accessed by using $this->settings directly
TypoScript settings can be accessed by using $settings directly

Explanation

Question 17 of 21

1

Which statments about the following TypoScript code are correct? (2)

plugin.tx_myextension {
persistence {
classes {
Vendor\MyExtension\Domain\Model\Client {
mapping {
tableName = fe_users
columns {
first_name.mapOnProperty = name
}
}
}
}
}
}

Select one or more of the following:

The code has no effect: a fully qualified class name must be used as a tableName value
The property name of the model Client maps to the field first_name of the database table
fe_users
The code has no effect: table and attribute names have to be written in UpperCamelCase
Only one property can be mapped between two tables
All properties are mapped by default if their name scheme matches

Explanation

Question 18 of 21

1

A domain model has a relation parent to itself. Is it possible to access the relation via the Query Manager? (1)

Select one or more of the following:

Yes, this is possible without any configuration
Yes, if the relation has the annotation @selfreference
Yes, if the TypoScript key features.selfreference = 1 is set
This is not possible – no error message is generated
This is not possible – an error message is generated

Explanation

Question 19 of 21

1

How can we make a TypoScript object available in a controller? (1)

Select one or more of the following:

Via $this->configurationManager->getContentObject()->data
Via $this->cObj
By utilising the “ContentObjectRenderer”
By utilising the “ContentObjectModel”
This is not possible in a controller

Explanation

Question 20 of 21

1

Is it possible to use stdWrap in Extbase TypoScript settings as shown below? (1)

plugin.tx_myextension_example {
settings {
uid.dataWrap = {page:uid}
}
}

Select one or more of the following:

Yes, this is supported out-of-the-box
Yes, but this needs to be activated in the Extbase configuration
Yes, you have to use PHP code to process stdWrap functions
Yes, but extbaseWrap must be used instead of dataWrap
No, this is not supported and not possible at all

Explanation

Question 21 of 21

1

What are “Switchable Controller Actions”? (2)

Select one or more of the following:

An option to limit which controller-action-combinations are executable
An option to switch between actions at run time
An option to control the sort order of actions shown in the backend
A configuration option to switch between backend users
An option to switch between controllers, based on actions

	Created by Pascal Bartl over 4 years ago

TYPO3 CD 2020 (zweite Auflage) Quiz on 4.3 Models, Repositories and Relations, created by Pascal Bartl on 09/04/2021.

4.3 Models, Repositories and Relations

Question 1 of 21

Which of the following statements about domain models in Extbase is correct? (1)

Select one or more of the following:

Explanation

Question 2 of 21

What is required in an Extbase repository to prevent it from returning deleted records? (1)

Select one or more of the following:

Explanation

Question 3 of 21

What needs to be done in an Extbase repository to include hidden and deleted records in the result set? (1)

Select one or more of the following:

Explanation

Question 4 of 21

Which type of relation is not possible with TCA’s inline field type (IRRE)? (1)

Select one or more of the following:

Explanation

Question 5 of 21

Which property annotation is required to define a relation of type 1:n in your domain model? (1)

Select one or more of the following:

Explanation

Question 6 of 21

Which repository method tests whether the value of a domain model property, which has a m:n relation, contains a specific value? (1)

Select one or more of the following:

Explanation

Question 7 of 21

Which repository method tests whether the value of a domain model property is included in a list of possible values? (1)

Select one or more of the following:

Explanation

Question 8 of 21

What needs to be configured to instruct all methods of a repository to return results ordered by a specific property? (1)

Select one or more of the following:

Explanation

Question 9 of 21

Select one or more of the following:

Explanation

Question 10 of 21

Assuming two domain objects Book and Chapters exist, which have a 1:n-relation. How can you determine all chapters of a book which match a search string? (1)

Select one or more of the following:

Explanation

Question 11 of 21

What needs to be configured to access records from the repository stored on page UID = 0? (1)

Select one or more of the following:

Explanation

Question 12 of 21

What needs to be configured to access all records, regardless of which page they are stored on? (1)

Select one or more of the following:

Explanation

Question 13 of 21

How can a custom extension access the fe_users database table? (2)

Select one or more of the following:

Explanation

Question 14 of 21

Which statement about the Persistence Manager is correct? (1)

Select one or more of the following:

Explanation

Question 15 of 21

How can you access TypoScript settings within a domain model? (1)

Select one or more of the following:

Explanation

Question 16 of 21

What is the recommended way to access TypoScript settings in a repository? (1)

Select one or more of the following:

Explanation

Question 17 of 21

Which statments about the following TypoScript code are correct? (2) plugin.tx_myextension { persistence { classes { Vendor\MyExtension\Domain\Model\Client { mapping { tableName = fe_users columns { first_name.mapOnProperty = name } } } } } }

Select one or more of the following:

Explanation

Question 18 of 21

A domain model has a relation parent to itself. Is it possible to access the relation via the Query Manager? (1)

Select one or more of the following:

Explanation

Question 19 of 21

How can we make a TypoScript object available in a controller? (1)

Select one or more of the following:

Explanation

Question 20 of 21

Is it possible to use stdWrap in Extbase TypoScript settings as shown below? (1) plugin.tx_myextension_example { settings { uid.dataWrap = {page:uid} } }

Select one or more of the following:

Which repository method tests whether the value of a domain model property is included in a list of possible
values? (1)

Which statments about the following TypoScript code are correct? (2)

plugin.tx_myextension {
persistence {
classes {
Vendor\MyExtension\Domain\Model\Client {
mapping {
tableName = fe_users
columns {
first_name.mapOnProperty = name
}
}
}
}
}
}

Is it possible to use stdWrap in Extbase TypoScript settings as shown below? (1)

plugin.tx_myextension_example {
settings {
uid.dataWrap = {page:uid}
}
}