How to create product updater plugin?

[hsoft]

Hi guys,

I'm quite new to VirtueMart development and need some guidance.

I need to write some code to automatically update product information (e.g. stock, prices) in VirtueMart from an external data source. My ide was to make it work online, so whenever a product is displayed on the frontend i request the actual data from the external surce and update the product database if neccessary. My questions are:

• I don't want to update the database itself, I rather would call the model (or some helper). How can I do it, what method to call?
• What VM event hook should I implement in my plugin?

Any help would be appriciated. Thank you.


PS: I'm not a native speaker so please forgive my English. Thx.