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JSON-LD Serializer for Drupal and Islandora

License: GNU General Public License v2.0

PHP 100.00%

islandora

jsonld's Introduction

JSONLD

Introduction

JSON-LD Serializer for Drupal 10 and Islandora.

NOTE: This 3.x branch is compatible with Drupal 10. For progress in D10 compatibility with the rest of Islandora, see ticket.

This module adds a simple Drupal entity to JSON-LD normalizer/serializer/unserializer service provider and a few supporting classes. It depends on RDF module and existing fields to RDF properties mappings to do its job.

Configuration

The JSON-LD normalizer adds a ?_format=jsonld to all URIs by default.

You can disable this via a checkbox in the Configuration -> Search and Metadata -> JsonLD form.

Maintainers

Current maintainers:

Jared Whiklo

Development

If you would like to contribute, please get involved by attending our weekly Tech Call. We love to hear from you!

If you would like to contribute code to the project, you need to be covered by an Islandora Foundation Contributor License Agreement or Corporate Contributor License Agreement. Please see the Contributors pages on Islandora.ca for more information.

We recommend using the islandora-playbook to get started.

License

GPLv2

jsonld's People

Contributors

Stargazers

Watchers

Forkers

dannylamb whikloj jonathangreen diegopino yorkulibraries kimpham54 jyobb natkeeran digitalutsc mnylc roblib ysuarez manez asulibraries ajstanley unlv-libraries rosiel zhiminchenjimmy

jsonld's Issues

[BUG] Undefined index: @id in deduplicateArrayOfIds()

I've started getting the following errors popping up in my error queue:

Notice: Undefined index: @id in Drupal\jsonld\Normalizer\NormalizerBase::deduplicateArrayOfIds() (line 110 of /data/www/special/drupal/modules/contrib/jsonld/src/Normalizer/NormalizerBase.php)
#0 /data/www/special/drupal/core/includes/bootstrap.inc(346): _drupal_error_handler_real()
#1 /data/www/special/drupal/modules/contrib/jsonld/src/Normalizer/NormalizerBase.php(110): _drupal_error_handler()
#2 /data/www/special/drupal/modules/contrib/jsonld/src/Normalizer/NormalizerBase.php(86): Drupal\jsonld\Normalizer\NormalizerBase::deduplicateArrayOfIds()
#3 /data/www/special/drupal/modules/contrib/jsonld/src/Normalizer/ContentEntityNormalizer.php(174): Drupal\jsonld\Normalizer\NormalizerBase::deduplicateTypesAndReferences()
#4 /data/www/special/drupal/vendor/symfony/serializer/Serializer.php(153): Drupal\jsonld\Normalizer\ContentEntityNormalizer->normalize()
#5 /data/www/special/drupal/vendor/symfony/serializer/Serializer.php(126): Symfony\Component\Serializer\Serializer->normalize()
#6 /data/www/special/drupal/core/modules/rest/src/EventSubscriber/ResourceResponseSubscriber.php(160): Symfony\Component\Serializer\Serializer->serialize()
#7 /data/www/special/drupal/core/modules/rest/src/EventSubscriber/ResourceResponseSubscriber.php(75): Drupal\rest\EventSubscriber\ResourceResponseSubscriber->renderResponseBody()
#8 [internal function]: Drupal\rest\EventSubscriber\ResourceResponseSubscriber->onResponse()
#9 /data/www/special/drupal/core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php(142): call_user_func()
#10 /data/www/special/drupal/vendor/symfony/http-kernel/HttpKernel.php(191): Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch()
#11 /data/www/special/drupal/vendor/symfony/http-kernel/HttpKernel.php(179): Symfony\Component\HttpKernel\HttpKernel->filterResponse()
#12 /data/www/special/drupal/vendor/symfony/http-kernel/HttpKernel.php(80): Symfony\Component\HttpKernel\HttpKernel->handleRaw()
#13 /data/www/special/drupal/core/lib/Drupal/Core/StackMiddleware/Session.php(58): Symfony\Component\HttpKernel\HttpKernel->handle()
#14 /data/www/special/drupal/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(48): Drupal\Core\StackMiddleware\Session->handle()
#15 /data/www/special/drupal/core/modules/page_cache/src/StackMiddleware/PageCache.php(106): Drupal\Core\StackMiddleware\KernelPreHandle->handle()
#16 /data/www/special/drupal/core/modules/page_cache/src/StackMiddleware/PageCache.php(85): Drupal\page_cache\StackMiddleware\PageCache->pass()
#17 /data/www/special/drupal/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(48): Drupal\page_cache\StackMiddleware\PageCache->handle()
#18 /data/www/special/drupal/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(51): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle()
#19 /data/www/special/drupal/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle()
#20 /data/www/special/drupal/core/lib/Drupal/Core/DrupalKernel.php(708): Stack\StackedHttpKernel->handle()
#21 /data/www/special/drupal/index.php(19): Drupal\Core\DrupalKernel->handle()
#22 {main}
.

I'm not sure what it is complaining about, because none of the referenced objects in the JSON-LD that triggered it are missing an @id property:

{
  "@graph": [
    {
      "@id": "https://special.library.unlv.edu/node/338459",
      "@type": [
        "http://pcdm.org/models#Object",
        "http://purl.org/coar/resource_type/c_c513"
      ],
      "http://purl.org/dc/terms/title": [
        {
          "@value": "Photographs of Highland Girl Scout Cookout, Foster Parent's home opening, Reverend Walker's church, adult education graduation at Madison, Las Vegas (Nev.), 1967",
          "@language": "en"
        }
      ],
      "http://schema.org/dateCreated": [
        {
          "@value": "2020-11-09T21:56:37+00:00",
          "@type": "http://www.w3.org/2001/XMLSchema#dateTime"
        }
      ],
      "http://schema.org/dateModified": [
        {
          "@value": "2022-06-06T20:45:58+00:00",
          "@type": "http://www.w3.org/2001/XMLSchema#dateTime"
        }
      ],
      "http://purl.org/dc/terms/description": [
        {
          "@value": "<p>Unidentified men at the grand opening of Foster Parents Home. Two men shaking hands in front of a church. A graduation ceremony.</p>\r\n",
          "@language": "en"
        }
      ],
      "http://purl.org/dc/terms/isPartOf": [
        {
          "@id": "https://special.library.unlv.edu/node/297751"
        }
      ],
      "http://purl.org/dc/terms/identifier": [
        {
          "@id": "http://n2t.net/ark:/62930/d1dj58n38"
        },
        {
          "@value": "pho022087",
          "@type": "http://www.w3.org/2001/XMLSchema#string"
        }
      ],
      "http://schema.org/sameAs": [
        {
          "@id": "http://n2t.net/ark:/62930/d1dj58n38"
        },
        {
          "@id": "https://special.library.unlv.edu/node/338459"
        }
      ],
      "http://purl.org/dc/terms/bibliographicCitation": [
        {
          "@value": "<p>pho022087. Clinton Wright Photographic Negatives Collection. PH-00379. Special Collections and Archives, University Libraries, University of Nevada, Las Vegas. Las Vegas, Nevada. http://n2t.net/ark:/62930/d1dj58n38.</p>\r\n",
          "@type": "http://www.w3.org/2001/XMLSchema#string"
        }
      ],
      "http://purl.org/dc/terms/creator": [
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/22388"
        },
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/22388"
        }
      ],
      "http://purl.org/dc/terms/rights": [
        {
          "@value": "This material is made available to facilitate private study, scholarship, or research. It may be protected by copyright, trademark, privacy, publicity rights, or other interests not owned by UNLV. Users are responsible for determining whether permissions are necessary from rights owners for any intended use and for obtaining all required permissions. Acknowledgement of the UNLV University Libraries is requested. For more information, please see the UNLV Special Collections policies on reproduction and use (https://www.library.unlv.edu/speccol/research_and_services/reproductions) or contact us at [email protected].",
          "@type": "http://www.w3.org/2001/XMLSchema#string"
        },
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/12267"
        }
      ],
      "http://purl.org/dc/terms/provenance": [
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/638"
        }
      ],
      "http://purl.org/dc/terms/date": [
        {
          "@value": "1967",
          "@type": "http://www.w3.org/2001/XMLSchema#string"
        },
        {
          "@value": "1967",
          "@type": "http://www.w3.org/2001/XMLSchema#gYear"
        }
      ],
      "http://purl.org/dc/terms/language": [
        {
          "@value": "en",
          "@type": "http://www.w3.org/2001/XMLSchema#string"
        }
      ],
      "http://purl.org/dc/terms/spatial": [
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/1010"
        }
      ],
      "http://purl.org/dc/terms/medium": [
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/114"
        },
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/115"
        }
      ],
      "http://purl.org/dc/terms/format": [
        {
          "@value": "image/tiff",
          "@type": "http://www.w3.org/2001/XMLSchema#string",
          "@container": "@list"
        }
      ],
      "http://purl.org/dc/terms/publisher": [
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/117"
        }
      ],
      "http://purl.org/dc/terms/type": [
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/107"
        }
      ],
      "http://purl.org/dc/terms/source": [
        {
          "@id": "https://special.library.unlv.edu/node/311097"
        }
      ],
      "http://purl.org/dc/terms/subject": [
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/12271"
        },
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/22008"
        },
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/155"
        },
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/20534"
        },
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/647"
        },
        {
          "@id": "https://special.library.unlv.edu/taxonomy/term/20466"
        }
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/node/297751",
      "@type": [
        "http://schema.org/ArchiveComponent",
        "http://schema.org/Collection"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/22388",
      "@type": [
        "http://schema.org/Person"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/638",
      "@type": [
        "http://schema.org/Thing"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/1010",
      "@type": [
        "http://purl.org/dc/terms/Location",
        "http://schema.org/Place"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/114",
      "@type": [
        "http://schema.org/Thing"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/115",
      "@type": [
        "http://schema.org/Thing"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/117",
      "@type": [
        "http://schema.org/Organization"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/107",
      "@type": [
        "http://schema.org/Thing"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/node/311097",
      "@type": [
        "http://schema.org/ArchiveComponent"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/12267",
      "@type": "https://special.library.unlv.edu/rest/type/taxonomy_term/standardized_rights_statement"
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/12271",
      "@type": [
        "http://schema.org/Thing"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/22008",
      "@type": [
        "http://schema.org/Thing"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/155",
      "@type": [
        "http://schema.org/Thing"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/20534",
      "@type": [
        "http://schema.org/Thing"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/647",
      "@type": [
        "http://schema.org/Thing"
      ]
    },
    {
      "@id": "https://special.library.unlv.edu/taxonomy/term/20466",
      "@type": [
        "http://schema.org/Thing"
      ]
    }
  ]
}

hal is being removed from core

As of Drupal 9.4, hal is being removed from Drupal core. More info here: https://www.drupal.org/node/3223395#s-hal

What existing behavior do you want changed?
We will need to change the composer to install the hal from the contrib.

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