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Posted to user@struts.apache.org by "C.F. Scheidecker Antunes" <na...@antunes.eti.br> on 2005/08/09 20:56:36 UTC
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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Re: Category and Subcategory logic within Struts
Posted by Dave Newton <ne...@pingsite.com>.
C.F. Scheidecker Antunes wrote:
> 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.
As opposed to what?
> 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 implemented a "solution" to this usecase that basically grabbed the
data and cached a chunk of JavaScript code (a multi-dimensional array
containing the useful bits of data (id and label)), but that was before
I knew about AJAX-like things; I'd might look towards that as a more
robust solution now.
Dave
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Re: {Spam?} Category and Subcategory logic within Struts
Posted by 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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