Building an E-commerce Website With ExpressionEngine, Part 2

Part 2: Channel installation and Discounts

2a) Orders/Discount Channel Installation

Back in the ExpressionEngine backend, go to the CartThrob add-on, and then the “Installation” tab. (We’re not going to Orders Tab which would be the logical next step)

Of these available installation options, we actually skip most of them because we’re starting with pretty basic templates that we’ve created. Our store is not really complicated enough for Packages or Discounts channels. Instead, we will only choose Store - Orders and then Store - Coupon Codes channels. (Remember, our ExpressionEngine site already had a Products channel) If you’re curious, Store - Purchased items would be used to if you want to show “Customers Also Bought..” on a product page, which is a cool feature.

We are not installing any templates, as we already have those completed.

CartThrob test channels install

Click Install Templates & Channels.

Navigate to the Channels menu, and you’ll hopefully see that the two new channels were created.

Now, head back to CartThrob, navigate to the Orders tab, and this one’s sort of settle. You have to first click your order channel, Store - Orders, and then be sure to select “Yes” for “Save completed orders to a channel?”

CartThrob channel mapping

Upon submitting these changes, we should see statuses that need to be assigned. Scroll down to the Order Status section and map each status accordingly.

CartThrob status mapping

We’ll follow suit with Order Data Fields. (this one takes a while!)

CartThrob field mapping

Now CartThrob knows about our Orders channel and its Status and Data fields.

2b) Coupon Code (Discounts)

Next, we’re going to make some fields to store coupon codes. In the Fields menu, there’s now a field group called Coupon Codes with a default field {coupon_code_type}. We’re going to supplement this with two more fields of our own.

Coupon Code field

Add a text input field, we’ll call it just “Coupon Code”, shortname {coupon_code}. This will be the field that we put the actual code the customer would type in on the cart page, e.g. “Black Friday” coupon.

Coupon Code field

Follow up by creating another text field as the {coupon_description}. This field would be for a frontend display, such as, “You now have a 10% off your order” to display in the cart.

Coupon Description Field

With the discount fields created, it’s back CartThrob settings and then the Discounts tab. Our fields haven’t yet been assigned to the new channel, so we’ll add that setting and click Submit.

Coupon Mapping

Now we are ready to make a coupon code entry within the Store - Coupon Codes channel. Our title is “Ten Percent Off EE CONF Special,” a Type of “Percentage Off,” and Percentage Off value of 10. And finally, a Coupon Code of “abc123” and a Coupon Description.

Coupon entry creation

We’re done! These coupon codes can be tested on the frontend.

Have questions or comments about this course? Be sure to join the discussion and post in the ExpressionEngine Forums!

Paul Larson's avatar
Paul Larson

Owner of Creative Arc and member of the EECA. I've been building websites since NCSA Mosaic was the latest browser, and have been building in ExpressionEngine since the pMachine release.

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