I'm upgrading Drupal 8 to Drupal 9.

If I run updates on Drupal 8 and then go to Drupal 9, the updates work properly. (For example on local env)

However, if I run updates with D9 already then I got the message below:

[error] Argument 1 passed to Symfony\Component\Yaml\Parser::parse() must be of the type string, null given, called in /var/www/html/web/core/lib/Drupal/Component/Serialization/YamlSymfony.php on line 3

This only happens if you have a webform without elements (not common, but possible).

CommentFileSizeAuthor
#4 webform-6.x-3170148-3.patch3.15 KBjrockowitz
#4 webform-8.x-5.x-3170148-3.patch3.15 KBjrockowitz
#2 webform-update_error_when_webform_does_not_have_elements-3170148-2.patch585 bytescarolpettirossi
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Comments

carolpettirossi created an issue. See original summary.

carolpettirossi’s picture

carolpettirossi CreditAttribution: carolpettirossi at Prosple commented
FileSize
webform-update_error_when_webform_does_not_have_elements-3170148-2.patch585 bytes

Here's a patch to solve this issue

jrockowitz’s picture

jrockowitz CreditAttribution: jrockowitz as a volunteer and at The Big Blue House commented

Let's use the WebformYaml helper class which handles the empty/null elements array.

I am also update WebformYaml::encode to return an empty string for an empty array.

jrockowitz’s picture

jrockowitz CreditAttribution: jrockowitz as a volunteer and at The Big Blue House commented
FileSize
webform-8.x-5.x-3170148-3.patch3.15 KB
webform-6.x-3170148-3.patch3.15 KB

  • jrockowitz authored 4a5f759 on 8.x-5.x 
    Issue #3170148 by jrockowitz, carolpettirossi: Running drush updb throws...
jrockowitz’s picture

jrockowitz CreditAttribution: jrockowitz as a volunteer and at The Big Blue House commented
Status: Active » Fixed

  • jrockowitz authored 4a5f759 on 6.x 
    Issue #3170148 by jrockowitz, carolpettirossi: Running drush updb throws...

Status: Fixed » Closed (fixed)

Automatically closed - issue fixed for 2 weeks with no activity.