oliverdavies.uk/content/node.20010c04-2f30-4772-9041-6f7e836158f8.yml

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title:
  - value: 'Why write framework-agnostic code'
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      <p><a href="//daily/2024/03/04/why-you-need-layers-in-your-application-code">Yesterday</a>, I wrote about writing layers in your application code and the benefits of loosely coupled code.</p>

      <p>Something else you can do with this approach is to write framework-agnostic code.</p>

      <p>By writing your business logic in code that isn't tied to a specific framework or CMS, with a small adapter layer, you can upgrade to a newer version of the framework, such as Drupal 7 to 10, or a different framework,  keep most of the code the same and only update the parts that connect the business logic and the framework.</p>

      <p>This is something that Commerce Guys (now Centarro) did when creating Drupal Commerce 2.0.</p>

      <p>The logic around addressing, tax, etc., was released in separate PHP libraries, each with its own release cycle and reusable logic.</p>

      <p>This meant the Drupal modules were much smaller, and other eCommerce systems and frameworks could use the agnostic libraries.</p>

      <p>It's something to consider when writing your next Drupal module.</p>

      <p>It's something <a href="https://github.com/opdavies/national-rail-enquiries-feed-parser">I did recently</a> and have done on client projects previously, and it can be a good approach.</p>

              
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      <p><a href="/daily/2024/03/04/why-you-need-layers-in-your-application-code">Yesterday</a>, I wrote about writing layers in your application code and the benefits of loosely coupled code.</p>

      <p>Something else you can do with this approach is to write framework-agnostic code.</p>

      <p>By writing your business logic in code that isn't tied to a specific framework or CMS, with a small adapter layer, you can upgrade to a newer version of the framework, such as Drupal 7 to 10, or a different framework,  keep most of the code the same and only update the parts that connect the business logic and the framework.</p>

      <p>This is something that Commerce Guys (now Centarro) did when creating Drupal Commerce 2.0.</p>

      <p>The logic around addressing, tax, etc., was released in separate PHP libraries, each with its own release cycle and reusable logic.</p>

      <p>This meant the Drupal modules were much smaller, and other eCommerce systems and frameworks could use the agnostic libraries.</p>

      <p>It's something to consider when writing your next Drupal module.</p>

      <p>It's something <a href="https://github.com/opdavies/national-rail-enquiries-feed-parser">I did recently</a> and have done on client projects previously, and it can be a good approach.</p>

              
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