Drupal 8 Get file system path or public directory path for drupal 8 instance.
The following code will return the root path for a drupal file system. \Drupal::service('file_system')->realpath(file_default_scheme() . "://") . '/');
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Drupal 8 Programmatically update a node enabling revision with revision log message.
To enable revision and to log revision message on saving a node in drupal 8 we can use setNewRevision() and setRevisionLogMessage(). Find the below code which uses entity save with revision.
MySQL: Sorting Alpha-Numeric values with Example
In MySQL, the ORDER BY keyword is used for sorting the records ascending(ASC) or descending(DESC), by default it will be on ascending. The default ORDER BY statement will not work with Alpha-Numerical values(The values is mixed of both numbers and strings). To resolve this problem we can use ABS() MySQL function.
Drupal 8 : Get content owner or author name of a node using node id.
To load the author name or owner from a node entity object we can use getOwner(). The below example show how to load a node object using node id and to get the Author name from it.
Drupal 8 : Get content type of a node using node id.
Getting the content type using a node id in drupal 8 can be achieved using bundle() function. The following code will return the node object.
Drupal 8 : Get all available fields by a field type as an array.
The following code will return all the available fields as an array by a field type. You can pass the field type that you want to load within getFieldMapByFieldType() function.
Drupal 8 : How to get all available user roles in drupal 8.
The below code will return all the available user roles as an array in drupal 8.
Drupal 8 : Change or move the location of the installed module without uninstalling it.
Changing the location of the module which is installed will return error. To do this you have to rebuild the APC cache. Try the one of the following steps after changing the module location.
Drupal 8: Get sitewide default email address
In Drupal we have site wide common Email ID. This Email id is used for the set as default from Email address for all emails sent from the site. Also, this email id is used to receive the emails regarding the updates for Core and other modules.
.htaccess Condition to check the device accessed using HTTP_USER_AGENT
Below code is the condition to check the web site accessing device is from mobile using "HTTP_USER_AGENT" in .htaccess file. You can use this condition and create a RewriteRule for any redirection.