Create a new ColdFusion file called makediscountcfm in Java

Maker Code 128 in Java Create a new ColdFusion file called makediscountcfm

This file contains the code that evaluates the price and the discount, and then returns the resulting discounted price back to the page that s asking for it

the discounted price Here s the code required to perform the entire operation:

<CFIF len(attributesprice) <CFSET callernewprice (Evaluate(price - (price <CFELSE> <CFSET callernewprice </CFIF> gt 1> = DollarFormat * discount))) > = >

Here s what s going on this code: First, it checks to make sure that, in fact, the tag has passed a value by saying that if the length of the variable is greater than 1 in which case something must be there then the code assumes it s a valid value If no value exists, then the code sets the variable caller newprice equal to a null value (a null value is an empty value) and passes that empty value back to the page that made the request to the tag When these variables have been passed to the page, the simple equation of discount price = price (price * discount) is performed

Performing this equation is also part of setting a new variable, callernewprice, which is sent back to the page that made the call to the custom tag originally You may not be familiar with two scopes in the preceding code The attribute scope is used in custom tags to denote the value being passed to the custom tag by the calling page The caller scope sends the value from the custom tag back to the original calling page

screen using <CFOUTPUT> Figure 7-6 shows how this tag works on a Web page In the page, you see places for price, discount, and the resulting discounted price

Figure 7-6: Discount pricing!

After you ve tried this and it s successful, you ve built your very first custom tag, and you re well on your way to building new tags for all those complex functions on your site!

Integrating ColdFusion with Dreamweaver Integrating ColdFusion with Fireworks Integrating ColdFusion with Macromedia Flash

oldFusion can add a tremendous amount of dynamic power to your Web applications As a member of Macromedia Studio MX 2004, ColdFusion has also become more integrated with other Macromedia products In this chapter, we provide a brief overview of how Macromedia has chosen to integrate ColdFusion 61 Developer Edition with Dreamweaver MX 2004, Fireworks MX 2004, and Macromedia Flash MX 2004 ColdFusion and FreeHand MX don t overlap or integrate, feature-wise

Nowhere is the integration effort more apparent than within Dreamweaver ColdFusion Studio, previously its own stand-alone application, has been fully integrated into Dreamweaver This melding of the products provides developers with the best of both worlds: The easy to use, graphical orientation of Dreamweaver has been combined with the dynamic development platform of ColdFusion You can now find ColdFusion tools throughout Dreamweaver: The Insert bar: The Insert bar has three categories that include a wide array of ColdFusion tags, functions, and wizard-like tools These tools are covered in more detail in Book II, 6 The Application panel: The Application panel allows you to view data in databases, generate queries, and even build ColdFusion components (bits of code that are encapsulated and made available to all the parts of your application) The Applications panel is discussed in depth in Book II, 6

The Code view: The Code view, which is shown in Figure 8-1, is the development interface that users had grown accustomed to using in previous versions of HomeSite and ColdFusion Studio Now, this same interface is available directly in Dreamweaver The Code panel: The Code panel includes documentation and tools that were previously available in ColdFusion Studio and have simply been ported to this new interface With all these areas of Dreamweaver that include ColdFusion components, you also have access to many ColdFusion features The following ColdFusion features are now fully integrated into Dreamweaver: Insert variables, functions, and queries: You can insert variables, functions, and queries through wizards and dialog boxes You can find the tools to insert these objects on the Insert bar For example, if you select the CFML category and click the database icon, you can fill in the blanks and create a <CFQUERY> tag to retrieve content from a database Work with databases: You can select databases and collect record sets from them To do this, select the Databases tab in the Application panel If you don t have a site set up, you ll need to configure your Data Sources Don t worry, Dreamweaver provides a checklist for you to follow to do this! You also find more information on how to retrieve data from a database in Book II, 6