eZ\Publish\Core\SignalSlot\ContentService

Complexity

Total Complexity

39

Size/Duplication

Total Lines	726
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	21

Importance

Changes

0

36 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	5	1
A	loadContentInfo()	0	4	1
A	loadContentInfoByRemoteId()	0	4	1
A	loadVersionInfo()	0	4	1
A	loadVersionInfoById()	0	4	1
A	loadContentByContentInfo()	0	4	1
A	loadContentByVersionInfo()	0	4	1
A	loadContent()	0	4	1
A	loadContentByRemoteId()	0	4	1
A	createContent()	0	14	1
A	updateContentMetadata()	0	13	1
A	deleteContent()	0	14	1
A	createContentDraft()	0	16	3
A	loadContentInfoList()	0	4	1
A	countContentDrafts()	0	4	1
A	loadContentDrafts()	0	4	1
A	loadContentDraftList()	0	4	1
A	updateContent()	0	14	1
A	publishVersion()	0	15	1
A	deleteVersion()	0	14	1
A	loadVersions()	0	4	1
A	copyContent()	0	17	2
A	loadRelations()	0	4	1
A	countReverseRelations()	0	4	1
A	loadReverseRelations()	0	4	1
A	addRelation()	0	15	1
A	deleteRelation()	0	15	1
A	removeTranslation()	0	8	1
A	deleteTranslation()	0	10	1
A	deleteTranslationFromDraft()	0	4	1
A	loadContentListByContentInfo()	0	11	1
A	hideContent()	0	9	1
A	revealContent()	0	9	1
A	newContentCreateStruct()	0	4	1
A	newContentMetadataUpdateStruct()	0	4	1
A	newContentUpdateStruct()	0	4	1

<?php

/**
 * ContentService class.
 *
 * @copyright Copyright (C) eZ Systems AS. All rights reserved.
 * @license For full copyright and license information view LICENSE file distributed with this source code.
 */
namespace eZ\Publish\Core\SignalSlot;

use eZ\Publish\API\Repository\ContentService as ContentServiceInterface;
use eZ\Publish\API\Repository\Values\Content\ContentDraftList;
use eZ\Publish\API\Repository\Values\Content\ContentCreateStruct;
use eZ\Publish\API\Repository\Values\Content\ContentUpdateStruct;
use eZ\Publish\API\Repository\Values\Content\ContentMetadataUpdateStruct;
use eZ\Publish\API\Repository\Values\Content\Language;
use eZ\Publish\API\Repository\Values\Content\LocationCreateStruct;
use eZ\Publish\API\Repository\Values\Content\ContentInfo;
use eZ\Publish\API\Repository\Values\Content\VersionInfo;
use eZ\Publish\API\Repository\Values\ContentType\ContentType;
use eZ\Publish\API\Repository\Values\User\User;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\CreateContentSignal;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\DeleteTranslationSignal;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\HideContentSignal;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\RemoveTranslationSignal;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\RevealContentSignal;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\UpdateContentMetadataSignal;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\DeleteContentSignal;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\CreateContentDraftSignal;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\UpdateContentSignal;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\PublishVersionSignal;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\DeleteVersionSignal;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\CopyContentSignal;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\AddRelationSignal;
use eZ\Publish\Core\SignalSlot\Signal\ContentService\DeleteRelationSignal;

/**
 * ContentService class.
 */
class ContentService implements ContentServiceInterface
{
    /**
     * Aggregated service.
     *
     * @var \eZ\Publish\API\Repository\ContentService
     */
    protected $service;

    /**
     * SignalDispatcher.
     *
     * @var \eZ\Publish\Core\SignalSlot\SignalDispatcher
     */
    protected $signalDispatcher;

    /**
     * Constructor.
     *
     * Construct service object from aggregated service and signal
     * dispatcher
     *
     * @param \eZ\Publish\API\Repository\ContentService $service
     * @param \eZ\Publish\Core\SignalSlot\SignalDispatcher $signalDispatcher
     */
    public function __construct(ContentServiceInterface $service, SignalDispatcher $signalDispatcher)
    {
        $this->service = $service;
        $this->signalDispatcher = $signalDispatcher;
    }

    /**
     * Loads a content info object.
     *
     * To load fields use loadContent
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to read the content
     * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException - if the content with the given id does not exist
     *
     * @param int $contentId
     *
     * @return \eZ\Publish\API\Repository\Values\Content\ContentInfo
     */
    public function loadContentInfo($contentId)
    {
        return $this->service->loadContentInfo($contentId);
    }

    /**
     * {@inheritdoc}
     */
    public function loadContentInfoList(array $contentIds): iterable
    {
        return $this->service->loadContentInfoList($contentIds);
    }

    /**
     * Loads a content info object for the given remoteId.
     *
     * To load fields use loadContent
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to read the content
     * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException - if the content with the given remote id does not exist
     *
     * @param string $remoteId
     *
     * @return \eZ\Publish\API\Repository\Values\Content\ContentInfo
     */
    public function loadContentInfoByRemoteId($remoteId)
    {
        return $this->service->loadContentInfoByRemoteId($remoteId);
    }

    /**
     * Loads a version info of the given content object.
     *
     * If no version number is given, the method returns the current version
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException - if the version with the given number does not exist
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to load this version
     *
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $contentInfo
     * @param int $versionNo the version number. If not given the current version is returned.
     *
     * @return \eZ\Publish\API\Repository\Values\Content\VersionInfo
     */
    public function loadVersionInfo(ContentInfo $contentInfo, $versionNo = null)
    {
        return $this->service->loadVersionInfo($contentInfo, $versionNo);
    }

    /**
     * Loads a version info of the given content object id.
     *
     * If no version number is given, the method returns the current version
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException - if the version with the given number does not exist
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to load this version
     *
     * @param mixed $contentId
     * @param int $versionNo the version number. If not given the current version is returned.
     *
     * @return \eZ\Publish\API\Repository\Values\Content\VersionInfo
     */
    public function loadVersionInfoById($contentId, $versionNo = null)
    {
        return $this->service->loadVersionInfoById($contentId, $versionNo);
    }

    /**
     * Loads content in a version for the given content info object.
     *
     * If no version number is given, the method returns the current version
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException - if version with the given number does not exist
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to load this version
     *
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $contentInfo
     * @param array $languages A language filter for fields. If not given all languages are returned
     * @param int $versionNo the version number. If not given the current version is returned
     * @param bool $useAlwaysAvailable Add Main language to \$languages if true (default) and if alwaysAvailable is true
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Content
     */
    public function loadContentByContentInfo(ContentInfo $contentInfo, array $languages = null, $versionNo = null, $useAlwaysAvailable = true)
    {
        return $this->service->loadContentByContentInfo($contentInfo, $languages, $versionNo, $useAlwaysAvailable);
    }

    /**
     * Loads content in the version given by version info.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to load this version
     *
     * @param \eZ\Publish\API\Repository\Values\Content\VersionInfo $versionInfo
     * @param array $languages A language filter for fields. If not given all languages are returned
     * @param bool $useAlwaysAvailable Add Main language to \$languages if true (default) and if alwaysAvailable is true
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Content
     */
    public function loadContentByVersionInfo(VersionInfo $versionInfo, array $languages = null, $useAlwaysAvailable = true)
    {
        return $this->service->loadContentByVersionInfo($versionInfo, $languages, $useAlwaysAvailable);
    }

    /**
     * Loads content in a version of the given content object.
     *
     * If no version number is given, the method returns the current version
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException if the content or version with the given id and languages does not exist
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to load this version
     *
     * @param int $contentId
     * @param array $languages A language filter for fields. If not given all languages are returned
     * @param int $versionNo the version number. If not given the current version is returned
     * @param bool $useAlwaysAvailable Add Main language to \$languages if true (default) and if alwaysAvailable is true
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Content
     */
    public function loadContent($contentId, array $languages = null, $versionNo = null, $useAlwaysAvailable = true)
    {
        return $this->service->loadContent($contentId, $languages, $versionNo, $useAlwaysAvailable);
    }

    /**
     * Loads content in a version for the content object reference by the given remote id.
     *
     * If no version is given, the method returns the current version
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException - if the content or version with the given remote id does not exist
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to load this version
     *
     * @param string $remoteId
     * @param array $languages A language filter for fields. If not given all languages are returned
     * @param int $versionNo the version number. If not given the current version is returned
     * @param bool $useAlwaysAvailable Add Main language to \$languages if true (default) and if alwaysAvailable is true
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Content
     */
    public function loadContentByRemoteId($remoteId, array $languages = null, $versionNo = null, $useAlwaysAvailable = true)
    {
        return $this->service->loadContentByRemoteId($remoteId, $languages, $versionNo, $useAlwaysAvailable);
    }

    /**
     * Creates a new content draft assigned to the authenticated user.
     *
     * If a different userId is given in $contentCreateStruct it is assigned to the given user
     * but this required special rights for the authenticated user
     * (this is useful for content staging where the transfer process does not
     * have to authenticate with the user which created the content object in the source server).
     * The user has to publish the draft if it should be visible.
     * In 4.x at least one location has to be provided in the location creation array.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to create the content in the given location
     * @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException if there is a provided remoteId which exists in the system
     *                                                                        or there is no location provided (4.x) or multiple locations
     *                                                                        are under the same parent or if the a field value is not accepted by the field type
     * @throws \eZ\Publish\API\Repository\Exceptions\ContentFieldValidationException if a field in the $contentCreateStruct is not valid
     * @throws \eZ\Publish\API\Repository\Exceptions\ContentValidationException if a required field is missing or is set to an empty value
     *
     * @param \eZ\Publish\API\Repository\Values\Content\ContentCreateStruct $contentCreateStruct
     * @param \eZ\Publish\API\Repository\Values\Content\LocationCreateStruct[] $locationCreateStructs For each location parent under which a location should be created for the content
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Content - the newly created content draft
     */
    public function createContent(ContentCreateStruct $contentCreateStruct, array $locationCreateStructs = [])
    {
        $returnValue = $this->service->createContent($contentCreateStruct, $locationCreateStructs);
        $this->signalDispatcher->emit(
            new CreateContentSignal(
                [
                    'contentId' => $returnValue->getVersionInfo()->getContentInfo()->id,
                    'versionNo' => $returnValue->getVersionInfo()->versionNo,
                ]
            )
        );

        return $returnValue;
    }

    /**
     * Updates the metadata.
     *
     * (see {@link ContentMetadataUpdateStruct}) of a content object - to update fields use updateContent
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to update the content meta data
     * @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException if the remoteId in $contentMetadataUpdateStruct is set but already exists
     *
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $contentInfo
     * @param \eZ\Publish\API\Repository\Values\Content\ContentMetadataUpdateStruct $contentMetadataUpdateStruct
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Content the content with the updated attributes
     */
    public function updateContentMetadata(ContentInfo $contentInfo, ContentMetadataUpdateStruct $contentMetadataUpdateStruct)
    {
        $returnValue = $this->service->updateContentMetadata($contentInfo, $contentMetadataUpdateStruct);
        $this->signalDispatcher->emit(
            new UpdateContentMetadataSignal(
                [
                    'contentId' => $contentInfo->id,
                ]
            )
        );

        return $returnValue;
    }

    /**
     * Deletes a content object including all its versions and locations including their subtrees.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to delete the content (in one of the locations of the given content object)
     *
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $contentInfo
     *
     * @return mixed[] Affected Location Id's
     */
    public function deleteContent(ContentInfo $contentInfo)
    {
        $returnValue = $this->service->deleteContent($contentInfo);
        $this->signalDispatcher->emit(
            new DeleteContentSignal(
                [
                    'contentId' => $contentInfo->id,
                    'affectedLocationIds' => $returnValue,
                ]
            )
        );

        return $returnValue;
    }

    /**
     * Creates a draft from a published or archived version.
     *
     * If no version is given, the current published version is used.
     * 4.x: The draft is created with the initialLanguage code of the source version or if not present with the main language.
     * It can be changed on updating the version.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to create the draft
     *
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $contentInfo
     * @param \eZ\Publish\API\Repository\Values\Content\VersionInfo $versionInfo
     * @param \eZ\Publish\API\Repository\Values\User\User $user if set given user is used to create the draft - otherwise the current user is used
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Content - the newly created content draft
     */
    public function createContentDraft(ContentInfo $contentInfo, VersionInfo $versionInfo = null, User $user = null)
    {
        $returnValue = $this->service->createContentDraft($contentInfo, $versionInfo, $user);
        $this->signalDispatcher->emit(
            new CreateContentDraftSignal(
                [
                    'contentId' => $contentInfo->id,
                    'versionNo' => ($versionInfo !== null ? $versionInfo->versionNo : null),
                    'newVersionNo' => $returnValue->getVersionInfo()->versionNo,
                    'userId' => ($user !== null ? $user->id : null),
                ]
            )
        );

        return $returnValue;
    }

    /**
     * Counts drafts for a user.
     *
     * If no user is given the number of drafts for the authenticated user are returned
     *
     * @param \eZ\Publish\API\Repository\Values\User\User|null $user The user to load drafts for, if defined, otherwise drafts for current-user
     *
     * @return int The number of drafts ({@link VersionInfo}) owned by the given user
     */
    public function countContentDrafts(?User $user = null): int
    {
        return $this->service->countContentDrafts($user);
    }

    /**
     * Loads drafts for a user.
     *
     * If no user is given the drafts for the authenticated user are returned
     *
     * @param \eZ\Publish\API\Repository\Values\User\User $user
     *
     * @return \eZ\Publish\API\Repository\Values\Content\VersionInfo[] the drafts ({@link VersionInfo}) owned by the given user
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to load the draft list
     */
    public function loadContentDrafts(User $user = null)
    {
        return $this->service->loadContentDrafts($user);
    }

    /**
     * {@inheritdoc}
     */
    public function loadContentDraftList(?User $user = null, int $offset = 0, int $limit = -1): ContentDraftList
    {
        return $this->service->loadContentDraftList($user, $offset, $limit);
    }

    /**
     * Updates the fields of a draft.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to update this version
     * @throws \eZ\Publish\API\Repository\Exceptions\BadStateException if the version is not a draft
     * @throws \eZ\Publish\API\Repository\Exceptions\ContentFieldValidationException if a field in the $contentUpdateStruct is not valid
     * @throws \eZ\Publish\API\Repository\Exceptions\ContentValidationException if a required field is set to an empty value
     * @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException if a field value is not accepted by the field type
     *
     * @param \eZ\Publish\API\Repository\Values\Content\VersionInfo $versionInfo
     * @param \eZ\Publish\API\Repository\Values\Content\ContentUpdateStruct $contentUpdateStruct
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Content the content draft with the updated fields
     */
    public function updateContent(VersionInfo $versionInfo, ContentUpdateStruct $contentUpdateStruct)
    {
        $returnValue = $this->service->updateContent($versionInfo, $contentUpdateStruct);
        $this->signalDispatcher->emit(
            new UpdateContentSignal(
                [
                    'contentId' => $versionInfo->getContentInfo()->id,
                    'versionNo' => $versionInfo->versionNo,
                ]
            )
        );

        return $returnValue;
    }

    /**
     * Publishes a content version.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to publish this version
     * @throws \eZ\Publish\API\Repository\Exceptions\BadStateException if the version is not a draft
     *
     * @param \eZ\Publish\API\Repository\Values\Content\VersionInfo $versionInfo
     * @param string[] $translations
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Content
     */
    public function publishVersion(VersionInfo $versionInfo, array $translations = Language::ALL)
    {
        $returnValue = $this->service->publishVersion($versionInfo, $translations);
        $this->signalDispatcher->emit(
            new PublishVersionSignal(
                [
                    'contentId' => $versionInfo->getContentInfo()->id,
                    'versionNo' => $versionInfo->versionNo,
                    'affectedTranslations' => $translations,
                ]
            )
        );

        return $returnValue;
    }

    /**
     * Removes the given version.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\BadStateException if the version is in
     *         published state or is the last version of the Content
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to remove this version
     *
     * @param \eZ\Publish\API\Repository\Values\Content\VersionInfo $versionInfo
     */
    public function deleteVersion(VersionInfo $versionInfo)
    {
        $returnValue = $this->service->deleteVersion($versionInfo);
        $this->signalDispatcher->emit(
            new DeleteVersionSignal(
                [
                    'contentId' => $versionInfo->contentInfo->id,
                    'versionNo' => $versionInfo->versionNo,
                ]
            )
        );

        return $returnValue;
    }

    /**
     * Loads all versions for the given content.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to list versions
     * @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException if the given status is invalid
     *
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $contentInfo
     * @param int|null $status
     *
     * @return \eZ\Publish\API\Repository\Values\Content\VersionInfo[] Sorted by creation date
     */
    public function loadVersions(ContentInfo $contentInfo, ?int $status = null)
    {
        return $this->service->loadVersions($contentInfo, $status);
    }

    /**
     * Copies the content to a new location. If no version is given,
     * all versions are copied, otherwise only the given version.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to copy the content to the given location
     *
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $contentInfo
     * @param \eZ\Publish\API\Repository\Values\Content\LocationCreateStruct $destinationLocationCreateStruct the target location where the content is copied to
     * @param \eZ\Publish\API\Repository\Values\Content\VersionInfo $versionInfo
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Content
     */
    public function copyContent(ContentInfo $contentInfo, LocationCreateStruct $destinationLocationCreateStruct, VersionInfo $versionInfo = null)
    {
        $returnValue = $this->service->copyContent($contentInfo, $destinationLocationCreateStruct, $versionInfo);
        $this->signalDispatcher->emit(
            new CopyContentSignal(
                [
                    'srcContentId' => $contentInfo->id,
                    'srcVersionNo' => ($versionInfo !== null ? $versionInfo->versionNo : null),
                    'dstContentId' => $returnValue->getVersionInfo()->getContentInfo()->id,
                    'dstVersionNo' => $returnValue->getVersionInfo()->versionNo,
                    'dstParentLocationId' => $destinationLocationCreateStruct->parentLocationId,
                ]
            )
        );

        return $returnValue;
    }

    /**
     * Loads all outgoing relations for the given version.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to read this version
     *
     * @param \eZ\Publish\API\Repository\Values\Content\VersionInfo $versionInfo
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Relation[]
     */
    public function loadRelations(VersionInfo $versionInfo)
    {
        return $this->service->loadRelations($versionInfo);
    }

    /**
     * {@inheritdoc}
     */
    public function countReverseRelations(ContentInfo $contentInfo): int
    {
        return $this->service->countReverseRelations($contentInfo);
    }

    /**
     * Loads all incoming relations for a content object.
     *
     * The relations come only from published versions of the source content objects
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to read this version
     *
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $contentInfo
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Relation[]
     */
    public function loadReverseRelations(ContentInfo $contentInfo)
    {
        return $this->service->loadReverseRelations($contentInfo);
    }

    /**
     * Adds a relation of type common.
     *
     * The source of the relation is the content and version
     * referenced by $versionInfo.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to edit this version
     * @throws \eZ\Publish\API\Repository\Exceptions\BadStateException if the version is not a draft
     *
     * @param \eZ\Publish\API\Repository\Values\Content\VersionInfo $sourceVersion
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $destinationContent the destination of the relation
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Relation the newly created relation
     */
    public function addRelation(VersionInfo $sourceVersion, ContentInfo $destinationContent)
    {
        $returnValue = $this->service->addRelation($sourceVersion, $destinationContent);
        $this->signalDispatcher->emit(
            new AddRelationSignal(
                [
                    'srcContentId' => $sourceVersion->contentInfo->id,
                    'srcVersionNo' => $sourceVersion->versionNo,
                    'dstContentId' => $destinationContent->id,
                ]
            )
        );

        return $returnValue;
    }

    /**
     * Removes a relation of type COMMON from a draft.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed edit this version
     * @throws \eZ\Publish\API\Repository\Exceptions\BadStateException if the version is not a draft
     * @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException if there is no relation of type COMMON for the given destination
     *
     * @param \eZ\Publish\API\Repository\Values\Content\VersionInfo $sourceVersion
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $destinationContent
     */
    public function deleteRelation(VersionInfo $sourceVersion, ContentInfo $destinationContent)
    {
        $returnValue = $this->service->deleteRelation($sourceVersion, $destinationContent);
        $this->signalDispatcher->emit(
            new DeleteRelationSignal(
                [
                    'srcContentId' => $sourceVersion->contentInfo->id,
                    'srcVersionNo' => $sourceVersion->versionNo,
                    'dstContentId' => $destinationContent->id,
                ]
            )
        );

        return $returnValue;
    }

    /**
     * {@inheritdoc}
     */
    public function removeTranslation(ContentInfo $contentInfo, $languageCode)
    {
        @trigger_error(

It seems like you do not handle an error condition here. This can introduce security issues, and is generally not recommended.

            __METHOD__ . ' is deprecated, use deleteTranslation instead',
            E_USER_DEPRECATED
        );
        $this->deleteTranslation($contentInfo, $languageCode);
    }

    /**
     * Delete Content item Translation from all Versions (including archived ones) of a Content Object.
     *
     * NOTE: this operation is risky and permanent, so user interface should provide a warning before performing it.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\BadStateException if the specified Translation
     *         is the Main Translation of a Content Item.
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed
     *         to delete the content (in one of the locations of the given Content Item).
     * @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException if languageCode argument
     *         is invalid for the given content.
     *
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $contentInfo
     * @param string $languageCode
     *
     * @since 6.13
     */
    public function deleteTranslation(ContentInfo $contentInfo, $languageCode)
    {
        $this->service->deleteTranslation($contentInfo, $languageCode);
        $this->signalDispatcher->emit(
            new RemoveTranslationSignal(['contentId' => $contentInfo->id, 'languageCode' => $languageCode])

The class eZ\Publish\Core\SignalSlot\Signal\ContentService\RemoveTranslationSignal has been deprecated with message: since 6.13, use DeleteTranslationSignal

        );
        $this->signalDispatcher->emit(
            new DeleteTranslationSignal(['contentId' => $contentInfo->id, 'languageCode' => $languageCode])
        );
    }

    /**
     * Delete specified Translation from a Content Draft.
     *
     * @throws \eZ\Publish\API\Repository\Exceptions\BadStateException if the specified Translation
     *         is the only one the Content Draft has or it is the main Translation of a Content Object.
     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed
     *         to edit the Content (in one of the locations of the given Content Object).
     * @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException if languageCode argument
     *         is invalid for the given Draft.
     * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException if specified Version was not found
     *
     * @param \eZ\Publish\API\Repository\Values\Content\VersionInfo $versionInfo Content Version Draft
     * @param string $languageCode Language code of the Translation to be removed
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Content Content Draft w/o the specified Translation
     *
     * @since 6.12
     */
    public function deleteTranslationFromDraft(VersionInfo $versionInfo, $languageCode)
    {
        return $this->service->deleteTranslationFromDraft($versionInfo, $languageCode);
    }

    /**
     * Bulk-load Content items by the list of ContentInfo Value Objects.
     *
     * Note: it does not throw exceptions on load, just ignores erroneous Content item.
     * Moreover, since the method works on pre-loaded ContentInfo list, it is assumed that user is
     * allowed to access every Content on the list.
     *
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo[] $contentInfoList
     * @param string[] $languages A language priority, filters returned fields and is used as prioritized language code on
     *                            returned value object. If not given all languages are returned.
     * @param bool $useAlwaysAvailable Add Main language to \$languages if true (default) and if alwaysAvailable is true,
     *                                 unless all languages have been asked for.
     *
     * @return \eZ\Publish\API\Repository\Values\Content\Content[] list of Content items with Content Ids as keys
     */
    public function loadContentListByContentInfo(
        array $contentInfoList,
        array $languages = [],
        $useAlwaysAvailable = true
    ) {
        return $this->service->loadContentListByContentInfo(
            $contentInfoList,
            $languages,
            $useAlwaysAvailable
        );
    }

    /**
     * Hides Content by making all the Locations appear hidden.
     * It does not persist hidden state on Location object itself.
     *
     * Content hidden by this API can be revealed by revealContent API.
     *
     * @see revealContent
     *
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $contentInfo
     */
    public function hideContent(ContentInfo $contentInfo): void
    {
        $this->service->hideContent($contentInfo);
        $this->signalDispatcher->emit(
            new HideContentSignal([
                'contentId' => $contentInfo->id,
            ])
        );
    }

    /**
     * Reveals Content hidden by hideContent API.
     * Locations which were hidden before hiding Content will remain hidden.
     *
     * @see hideContent
     *
     * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $contentInfo
     */
    public function revealContent(ContentInfo $contentInfo): void
    {
        $this->service->revealContent($contentInfo);
        $this->signalDispatcher->emit(
            new RevealContentSignal([
                'contentId' => $contentInfo->id,
            ])
        );
    }

    /**
     * Instantiates a new content create struct object.
     *
     * alwaysAvailable is set to the ContentType's defaultAlwaysAvailable
     *
     * @param \eZ\Publish\API\Repository\Values\ContentType\ContentType $contentType
     * @param string $mainLanguageCode
     *
     * @return \eZ\Publish\API\Repository\Values\Content\ContentCreateStruct
     */
    public function newContentCreateStruct(ContentType $contentType, $mainLanguageCode)
    {
        return $this->service->newContentCreateStruct($contentType, $mainLanguageCode);
    }

    /**
     * Instantiates a new content meta data update struct.
     *
     * @return \eZ\Publish\API\Repository\Values\Content\ContentMetadataUpdateStruct
     */
    public function newContentMetadataUpdateStruct()
    {
        return $this->service->newContentMetadataUpdateStruct();
    }

    /**
     * Instantiates a new content update struct.
     *
     * @return \eZ\Publish\API\Repository\Values\Content\ContentUpdateStruct
     */
    public function newContentUpdateStruct()
    {
        return $this->service->newContentUpdateStruct();
    }
}