Introduction to Creating a Craft CMS Field Type

In this course we are going to learn how to cre­ate a cus­tom field type for Craft CMS. You may be watch­ing this because you’re curi­ous about how to extend Craft or, more like­ly, you find your­self in need of a cus­tom field type for Craft and want to know how to build it. 

Every imple­men­ta­tion is dif­fer­ent. You may need to pop­u­late your field type with data from an exter­nal data source or one of your plu­g­ins but the gen­er­al approach is the same. 

Our goal with this course is to learn the dif­fer­ent pieces of a cus­tom field type in Craft CMS and how eas­i­ly we can bring them togeth­er to build some­thing that we need for our site.

What We’re Building

In this course, we’re build­ing two dif­fer­ent field types. First, we’ll cre­ate a field that pro­vides a drop­down field of a list of world lan­guages. The label will be the lan­guage name, and the val­ue will be the lan­guage two-let­ter code.

While build­ing this field type, we’ll learn the fun­da­men­tals and tools we need to make just about anything.

We will take what we’ve learned and then build anoth­er field type that con­nects to Craft Com­merce. This field type, also a Drop­down field, will give us a drop­down field of the Craft Com­merce sub­scrip­tions plans we have enabled for the site.