Re: {Spam?} Category and Subcategory logic within Struts

[GR...@intellicare.com]

Funny you mention this... since apparently this kind of functionality has 
been foreseen and built right into JSF..! I don't suppose moving over to 
jSF is an option for you, right....?
Geeta




"C.F. Scheidecker Antunes" <na...@antunes.eti.br> 
08/09/2005 02:56 PM
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{Spam?} Category and Subcategory logic within Struts






Hello all,

I need to have a set of categories and subcategories selection on a JSP 
page similar to what eBay has when you are selling an item.

When you select a main category the secondary category box is populated 
with options and so forth.

My first question is: How to organize that? Shall I have a data 
structure with a parentId field so that I can do a SQL select for all 
the items with that parent category?

Second question is: Shall I use some sort of data structure like a list 
of objects where the object is a representation of a Category and its 
fields such as CatID, ParentID, Name.

I guess I should have Javascript do the job as far as populating those 
lists for the interface. Are there any smart solutions to that? Is there 
any example on the web that anyone is aware of?

I am doing it for a parts web site where I am categorizing and 
subcategorizing the parts. I will have up to 4 levels of categories 
including the main one which is required, the other are optional.

Any ideas?

Thanks,

C.F.

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