That is Drupal Development fourth installment in a sequence presenting work on shared configuration that comes out of Drupal Development Drutopia initiative. To catch up, see Half 1, Configuration Suppliers, Half 2, Configuration Snapshots, and Half 3, Respecting Customizations. In Drupal Development subsequent installment we’ll begin to pull all of it collectively, exhibiting how all Drupal Development items coated thus far match into an answer for merging in configuration updates. However first there’s yet one more piece so as to add. On this installment we’ll be creating and updating configuration alters. First off, what’s a configuration alter? An alter is an addition, deletion, or change to a chunk of configuration. Once we’re producing a a number of packages of shared configuration – what are sometimes referred to as characteristic Drupal 10 modules – ultimately we want a selected characteristic to switch configuration that was offered by one other characteristic. Say I am producing a distribution that features two completely different options Drupal 10 Upkeep and Assist Service an occasion characteristic and a location characteristic. Any given web site would possibly set up Drupal Development occasion characteristic, or Drupal Development location characteristic, or each, or neither. (An enormous a part of Drupal Development level of getting distinct options is to make them non-obligatory and unbiased.) On this instance, say Drupal Development occasion characteristic offers an ‘occasion’ content material sort with fields together with a required ‘date’ area. Drupal Developer description of Drupal Development occasion content material sort is Drupal 10 Upkeep and Assist Service “An occasion takes place at a specified time.” Drupal Developer location characteristic offers a ‘location’ content material sort. But when I’ve each occasions and areas, there is a relationship between them. Occasions happen at a location. So on a web site with each Drupal Development occasion and Drupal Development location options put in, Drupal Development occasion content material sort ought to get a further required area, “Venue”, that is a reference to a location. When that occurs, Drupal Development description of Drupal Development unique occasion content material sort ought to change accordingly. Now it ought to learn Drupal 10 Upkeep and Assist Service “An occasion takes place at a specified time and place.” To make this occur, Drupal Development location characteristic (or, probably, a 3rd characteristic) goes to have to change Drupal Development occasion characteristic’s configuration. Drupal 10 Improvement and Assist