WordPress Plugin Update for Gravity Forms & Cart66


Pass the value from a calculated field in a WP Gravity Forms form, to the basket of Cart 66 WP plugin. We have created the GF Form with the calculated price, but cannot pass the value over to Cart66.



1 - We have created the following Form using Gravity Forms plugin for wordpress:- [url removed, login to view]

2 - There are other Gravity Forms used in the site, but for the above form [jk-leaving-cert-revision-christmas-2011] (and any copies of the form we make), we have amended the form to allow a dynamic calculation of the final total cost based on the number of subjects selected eg:

• 1 subject costs €195

• 2 subject costs €325

• 3 subject costs €415

• 4 subject costs €465

• 5 subject costs €495

• And with additional code amendment that allows for Special Offers eg: 5 subjects for the price of 3 for instance

3 - We have customised the form to do the Special Offer pricing using the function gformCalculateTotalPrice in /www/wp-content/plugins/gravityforms/js/[url removed, login to view]

4 - We edited the function gformCalculateTotalPrice in /public_html/wp-content/plugins/gravityforms/js/[url removed, login to view] to calculate the price (we based this decision on information provided here: [url removed, login to view] )

5 - There is a specific GF function that will pass the calculated total from Gravity Forms to Cart66 – which is what we want. This second function will pass the calculated total to Cart 66. Look at the site [url removed, login to view] for the detail



6 - The calculated total from the form (jk - leaving...) above needs to be passed into Cart66 for payment - (if you look at other forms in the site eg: [url removed, login to view] you will see how the values are passed into the Cart66 cart)

NB: We do not want to break how other forms work, we only want to edit the above form, jk-leaving-cert.... and be able to make copies of the form

7 - We need to remove the €1 cost from displaying in the shopping cart details – (test the form and see the details in the shopping cart) . When we edited the code described in 3 & 4 above, we used a value of €1 euro to work out the subject calculations - thats why this problem has occurred.

8 - We also need to remove the €1 cost from displaying in the confirmation email sent to the customer – (similar to the shopping cart view)

Skills: Javascript, PHP, WordPress

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