- 🇺🇸United States dflitner
I found this post while trying to write a custom migration from Wordpress that includes alt text from images in posts.
For us, the pattern from #2 worked while the pattern from #5 gives an Ajax error
Error: Call to a member function getSource() on null in Drupal\media\Entity\Media->getSource() (line 143 of /app/web/core/modules/media/src/Entity/Media.php).#0 /app/web/core/modules/media/src/Entity/Media.php(428): Drupal\media\Entity\Media->getSource() #1 /app/web/core/modules/media/src/MediaStorage.php(27): Drupal\media\Entity\Media->prepareSave() #2 /app/web/core/lib/Drupal/Core/Entity/EntityBase.php(354): Drupal\media\MediaStorage->save(Object(Drupal\media\Entity\Media)) #3 /app/web/core/modules/migrate/src/Plugin/migrate/destination/EntityContentBase.php(237): Drupal\Core\Entity\EntityBase->save() #4 /app/web/core/modules/migrate/src/Plugin/migrate/destination/EntityContentBase.php(175): Drupal\migrate\Plugin\migrate\destination\EntityContentBase->save(Object(Drupal\media\Entity\Media), Array) #5 /app/web/core/modules/migrate/src/MigrateExecutable.php(248): Drupal\migrate\Plugin\migrate\destination\EntityContentBase->import(Object(Drupal\migrate\Row), Array) #6 /app/web/modules/composer/migrate_tools/src/MigrateBatchExecutable.php(236): Drupal\migrate\MigrateExecutable->import() #7 /app/web/core/includes/batch.inc(296): Drupal\migrate_tools\MigrateBatchExecutable::batchProcessImport('kb_images_media', Array, Array) #8 /app/web/core/includes/batch.inc(138): _batch_process() #9 /app/web/core/includes/batch.inc(94): _batch_do() #10 /app/web/core/modules/system/src/Controller/BatchController.php(52): _batch_page(Object(Symfony\Component\HttpFoundation\Request)) #11 [internal function]: Drupal\system\Controller\BatchController->batchPage(Object(Symfony\Component\HttpFoundation\Request)) #12 /app/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array(Array, Array) #13 /app/web/core/lib/Drupal/Core/Render/Renderer.php(627): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() #14 /app/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(124): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure)) #15 /app/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(97): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) #16 /app/vendor/symfony/http-kernel/HttpKernel.php(181): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() #17 /app/vendor/symfony/http-kernel/HttpKernel.php(76): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1) #18 /app/web/core/lib/Drupal/Core/StackMiddleware/Session.php(58): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #19 /app/web/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(48): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #20 /app/web/core/lib/Drupal/Core/StackMiddleware/ContentLength.php(28): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #21 /app/web/core/modules/big_pipe/src/StackMiddleware/ContentLength.php(32): Drupal\Core\StackMiddleware\ContentLength->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #22 /app/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(106): Drupal\big_pipe\StackMiddleware\ContentLength->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #23 /app/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(85): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true) #24 /app/web/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(48): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #25 /app/web/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(51): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #26 /app/web/core/lib/Drupal/Core/StackMiddleware/AjaxPageState.php(36): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #27 /app/web/core/lib/Drupal/Core/StackMiddleware/StackedHttpKernel.php(51): Drupal\Core\StackMiddleware\AjaxPageState->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #28 /app/web/core/lib/Drupal/Core/DrupalKernel.php(704): Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #29 /app/web/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #30 {main}Help! I accidentally made a fork??