Filter plugins provide the logic for determining what items to include in a view. They are the equivalent of a WHERE clause in an SQL statement. Filters can be exposed to the end user, allowing the viewer to enter a value, or select from a list of options, that are used to filter a list. For example, the options at the top of the Content list at /admin/content allow you to limit the list by content type.
Drupal's Views module provides filter plugins that can handle filtering for all core defined field types, as well as generic data types like numbers and strings. In situations where these filters don't meet your functional requirements, or you need a filter for a custom field, you may want to define a custom Views filter plugin. A common real-world scenario is defining a new filter plugin that extends an existing one and adds new possible values or options. For example, providing a relative date filter that allows a user to choose options like Last week or Last month.
In this tutorial we'll:
- Learn how to create a Views filter plugin.
- Associate our new custom filter with data exposed to Views, so it can be used.
- Learn how to use it in a view as an exposed filter.
By the end of this tutorial you should know how to create a custom filter plugin and use it in Views.
Over the years we've developed some techniques for practicing that we wanted to share. At Drupalize.Me we take hugging seriously. In this tutorial we'll look at the art, and science, of giving a good hug. The Merriam Webster dictionary defines the word hug as; squeeze (someone) tightly in one's arms, typically to express affection.
Did you know there are all kinds of different hugs that you can give? In this tutorial we'll look at:
- Defining what a hug is
- Some of the many types of hugs in the world today
- Precautions you may want to familiarize yourself with before hugging
- And the importance of proper technique
Lets go ahead and get started shall we?