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Re: Web Application: how to add ressources (images, CSS, javascript,...)
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Re: Web Application: how to add ressources (images, CSS, javascript,...)


  • Subject: Re: Web Application: how to add ressources (images, CSS, javascript,...)
  • From: Dev WO <email@hidden>
  • Date: Tue, 26 Aug 2003 23:49:49 +0200

For quick answer, you add them to the "Web Server Resources".

Thanks Adam, I'll try this later this week (my internet connection is KO today)

-All the stamp will be in a MySQL database/tables, is there any way to generate some part of the web pages (like the list of the stamp for a collection, or the form where you select them to add to the shopping cart)? How would you do that?

Direct To Web takes an eomodel and creates Web pages that support fetching, inserting, deleting, and updating objects. But these pages are usually not exactly what a developer wants to end up with, so they must usually be customized. For someone new to WO, concentrating on a traditional WO app might be a better way to start. You'll probably learn more by creating your own Web pages yourself at first.

I'm already developing and designing websites, and I wanted to use WO to be able to offer better solutions. So you think it's easier and better to start a WO app than to customize a Direct to Web?

-Is there a sample shopping cart for WO available somewhere to see how it works?

Because a shopping cart page is usually designed specifically for the intended use, a generic shopping cart implementation may not be too useful.


Basically, a shopping cart can be implemented by declaring in your Session class a NSMutableArray instance variable with appropriate accessor methods (e.g., addToShoppingCart(), removeFromShoppingCart(), shoppingCart()). Then in each page in which objects can be added to the shopping cart, invoke ((Session)session()).addToShoppingCart(anObject). You would also include a ShoppingCart page that displays the shopping cart items in a WOTable with a WORepetition that adds a table row for each object in ((Session)session()).shoppingCart(). The shopping cart table's columns would display attributes of the object (e.g., description, price) that would allow the customer to identify each object. You would also want to be able to specify the quantity of each item, be able to delete items, recalculate the total price, etc. This isn't difficult to implement in WO.
Any place to look to have a look to an already written code (I didn't do any programming for a long time;))? I'll try with my friend to set something like this, I'll let you know how it works;)
Thanks Art


<diatribe>
You know just about every WO newbie asks this cart question. And just about every time the answer is the same:
It's really easy! You just ...


Now, personally, I agree that it's easy (having done it). 99.99% of the effort in making the shopping cart
is in getting it to meet the desires of the people asking for the cart. But I also watched a senior engineer
struggle with a cart for over 2 months. Part of it was that I gave him a framework that did all the validation
and database work. He spent at least 4 weeks trying to understand the validation logic. To me it was strange
because it was
instantiate one of these do addOtBSoRwK, instantiate one of those do addOtBSoRwK, etc.
save it and catch the validation errors and make the user do it right.
But he didn't get it. So now I'm not too sure that it is as easy as we all know it to be.
</diatribe>


All that hot air being vented is it really as easy as pointing the newbies to WOPetStore?
I'm sure it's not obvious for anyone, but It's always a good point to have someone else's logic or point of view to start working on it, or just be inspired!
What do you mean with this WOPetStore?
Thanks again Art


Check:
http://developer.apple.com/documentation/WebObjects/JavaForWODev/ JavaForWODev.pdf


Go down to the "Test My Java Skills" Section. This document teaches the core WO concepts using a shopping cart application as an example.
Thanks ilant, I downloaded it, I'm reading it tonight...


And now a new set of questions!;)
-Can you make web pages that are not HTML 3.2, but rather HTML4 or XML? I think it's not really a restriction, but the portion of the code generated by WO will be 3.2...
-I already ask that, but I'll try to clear things: Is it possible to use other web technology inside a .woa component: like having a part of php that is used by Apache AFTER the WO component is called?
-What do you think of EO Modeler? how do you use it in your own project?


Thanks a lot everyone.

Xavier
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  • Follow-Ups:
    • Re: Web Application: how to add ressources (images, CSS, javascript,...)
      • From: Art Isbell <email@hidden>
References: 
 >Re: Web Application: how to add ressources (images, CSS, javascript,...) (From: "Adam Chan" <email@hidden>)

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