There are times when other Joomla! administrators of the site leave a page without tapping one of the methods to close it... save & close or close.  Subsequently, when a page hasn't been closed, a padlock appears to prevent another administrator's accessing the page(s) to make changes.  Great for content management, not so great if the person is uncontactable.

On a git pull from remote dev environment to a staging environment running off AWS server... I was greeted with the white screen of death.  While it took me a while to resolve the actual issue, my action plan was as follows:

How to resolve:

1. Look in your log files;
2. Add a few lines to your index.php file

Creating URL's in Drupal programmatically:

Internal path

use Drupal\Core\Link;
use Drupal\Core\Url;

$internal_link = Link::fromTextAndUrl(t('Drupal nodes'), Url::fromUri('internal:/node', $options))->toString();

External Url

use Drupal\Core\Link;
use Drupal\Core\Url;

$external_link = Link::fromTextAndUrl(t('Codebales'), Url::fromUri('http://www.codebales.com/'))->toString();

I needed the check if a file existed in a directory as the migrate script wasn't recognising the file.  To check if a file exists:

FILE={your-directory-path}
if test -f "$FILE"; then
    echo "$FILE exists."
fi

If your directory path is /Users/{your name}/Sites/migrate/local_dest_dir/fish/../media/apple-store.png

I was trying to create something quite simple.  How to get image file uri from media entity id or rendered entity. 

Or other variations you might have searched:

• How to load existing media programmatically
• How to get image file uri from media entity id
• Call to a member function getFileUri() 
• drupal File::load getFileUri 
• drupal getFileUri

This guide has been compiled as a reference tool on how to access field values for different field types.

The Manage Display admin UI can change how a field’s label and content are displayed. When I want to show how to output just the Manage Display version of the content, I use the word ‘display’. When I’m talking about the more raw version of the content, I use ‘value’.

Have you come across the following Drupal error message:

Mismatched entity and/or field definitions. The following changes were detected in the entity type and field definitions.

Run a database update status check

drush updatedb:status --entity-updates

Response

If your Composer project doesn't have Drush listed as a dependency, you can install Drush from command line as follows:

composer require drush/drush

To check your version of Drush, use

drush --version

Status check

drush status

Will output something similar to

Setting up a new project in Docker and VS Code.

Using Terminal, go to your Sites directory and create a new directory using the mkdir command.  In this instance I'm going to create a new directory titled ADCE

shortcut command to access the Sites directory

cd ~/Sites

Create the new directory

mkdir ADCE

Go in to the new directory

cd ADCE

Run the devcontainer command

Joining a new company / team there is always a lot of new items to do, install and familiarise yourself.  Below is a working list: