¶ In this lesson you will
- Use a number field of the form as the price
- Combine it with conditions
- Know the limits of the source field
¶ The applicant's number becomes the price
With Price From Attribute you do not type an amount: you pick a number field and the value the applicant enters (or the form calculates) is charged. Typical SRDs: customs duty equal to the declared value, a donation of any amount, a fee equal to an assessed total.
▶ Video walkthrough in the Rise course.
¶ Example: a community centre donation
The form asks Donation Type (General Donation, Program Sponsorship, Event Participation). For a general donation it shows General Donation Amount (number, minimum 1,000); for an event it shows Event Fee (number, 5,000 to 500,000).
The donation form: one number field per donation type
Scenario 1: price from the General Donation Amount field, when Donation Type is General
Mixing attribute and value scenarios in one service
| Scenario | Set Price To | Source / amount | When |
|---|---|---|---|
| 1 | Price From Attribute | General Donation Amount | Donation Type = General Donation |
| 2 | Price From Attribute | Event Fee | Donation Type = Event Participation |
| 3–5 | Price Value | 50,000 / 75,000 / 100,000 | Donation Type = Program Sponsorship AND Program = each program |
Gotcha · only number fields, and never empty
The source must be a number field. Give it a minimum and maximum in the form so nobody pays 0 or 1012. The scenario that uses a field must only match when that field is shown: if the field is hidden, its value is missing and the price cannot be read.
¶ Check yourself
Artisans set their own item price in the field itemPrice, and the buyer pays exactly that. How do you configure the price?
- A. Price Value with the average item price
- B. Price From Formula based on the product type
- C. One scenario per possible price
- D. Price From Attribute with the itemPrice field
Show the answer
D. When the applicant supplies the amount, the field is the price: one scenario handles every possible amount.