hook to use buildForm on price sets

[Michael McAndrew]

Hi,

An organisation runs a certain type of event that they want to charge for based on three bits of custom data (organisational income, membership status and sector).

My approach is to define a price set with a radio box that can be used to store the different event fees for this type of event, and then call some custom code to suggest / enforce the correct option when that price set is in use.

I'm customising the form CRM_Event_Form_Participant which contains the Price set radio box but am unsure what functions to call to change the available options.

Something tells me I could/should be using buildAmount, but what I like about my approach is that it lets the site admins use price set to adjust fees.

Let me know what you think about this approach and if it makes sense, how I can limit the available options in the price set.

Thanks for your suggestions