[wp-trac] [WordPress Trac] #42455: WordPress Class methods and Single Responsibility (recent posts widgets)

WordPress Trac noreply at wordpress.org
Tue Nov 7 13:24:36 UTC 2017

#42455: WordPress Class methods and Single Responsibility (recent posts widgets)
 Reporter:  viewup             |      Owner:
     Type:  enhancement        |     Status:  new
 Priority:  normal             |  Milestone:  Awaiting Review
Component:  Plugins            |    Version:  4.9
 Severity:  normal             |   Keywords:
  Focuses:  docs, performance  |
 WordPress uses PHP Classes a lot and this is great for extending and
 improving. The problem is, many class methods does a lot of things at once
 and this doesn't help extending at all.

 For instance, I'm trying to extend the Recent Posts Widget

 The plugin has it's internal settings and logic, query posts and apply

 I want to change it's render method, but just that. Don't want to mess
 with the plugin logic.

 The problem is, the render method (`widget` method) does a lot of things
 instead of focusing only on rendering. This forces me to copy every
 logical actions and reproduce them on my extending class.

 This could be solved by just splitting the plugin logic and rendering in
 separated functions (an function to get the posts and filters, separated
 from the `widget` function).

 This  would improve a lot the WordPress extending by plugins and themes.
 If we apply the single responsibility principle on WordPress classes and
 functions, plugins wouldn't need to have much more code.

 Another point: this enhancement wouldn't impact old plugins/themes if the
 functions signatures keep the same.

Ticket URL: <https://core.trac.wordpress.org/ticket/42455>
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