This tutorial will show you how to use Image.cfc. I demonstrate several examples of how you can create Image verification for forms, scale down images, watermark images, add text to images, and performing multiple operations to an image.
Have you seen the "www.EasyCFM" page closely? On the main page, top right, there is a place for time, and top left a place for day-date.
Ever wonder how Pablo does it ?
Not all queries can be saved as an application variable. For Queries that do not meet the checkpoints in my previous tutorial there is another way to improve performance. Query Caching is another way to save data and eliminate unnecessary queries. This is for queries that are more dynamic in nature.
One thing I am always trying to do is speed up my applications. As my site grows in size and complexity I find that I spend a fair amount of time re-coding pages because of a new technique I just learned. I wish I had learned about these techniques long before, and thereby allowing me to create more effective code. In this tutorial I'll try to explain some problem areas that I have identified, and some of the things you can do to improve performance.
This is a custom tag I wrote that generates a random string at the set number of characters using the characters you decide on
Uppercase, lowercase, mixed case...
It will create a variable that you name as you wish and call however you'd like.
It is a small example of how to create a custom tag and will hopefully send someone in the right direction. It is also fully functional and has come in handy quite a few times. Enjoy and as always.. Have Fun!
An introductory look at CFSCRIPT. Rules, some basic syntax, and a couple of examples of loops and conditional processing.
A nifty little custom tag that will allow you to save a visitor's clickstream through your site, as well as display it back to them (with links).
Did I really just say 'nifty'?
This tutorial explains how to use nested custom tags in ColdFusion. It also presents one 'basic quiz' in CF MX where nested custom tags show an interesting behavior
When using the cfinvoke tag or the CreateObject function on your pages, it adds CPU time to process the requests to load all of those objects into memory. Under load this can make quite a difference in your page response times. One way to get around it is to put those objects into a shared scope so they only get instantiated once. This will save memory and CPU time on your server.
Have you ever wanted to have a quick way to process just about any form in coldfusion? If you can apply some simple standards to your database and to your form elements, then this tutorial makes it easy for you to rapidly develop and deploy your application. Note, some developers will frown on it because it does not draw on stored procedures where efficiency can be gained in your application, but sometimes you just want to get it working - you can let the hard core programmers use the prototype to make it work more efficiently. They will like you for using less code.
Have you ever wanted to have a quick way to process just about any form in coldfusion? Whether it is by direct submission of a form by submit or through AJAX, you can apply some simple standards to your database and to your form elements, then this tutorial makes it easy for you to develop and deploy forms in your application.
This simple CFC scrambles your e-mail into ASCII-equivalent characters, reducing the chance of your e-mail being phished by bots and spiders significantly.
The Tutorial is reagarding the checking of the multiple email addresses. This is a server side coding using the ReFind and the Replace Functions.
This tutorial demonstrates how to create a dynamic sitemap for a database-driven website with ColdFusion
This is a function that generates a 14-digits unique number from the current date and time. You can use this number as a unique ID for your database records.
Need a quick way to manage your meta information? Frustrated with tags mistakenly deleted by page updates?
This handy script will help you keep track of and easily update your meta data.
This tutorial will tech you how to check if a image has been resized, if it has leave it alone, if it hasnt resize it and add a _sm prefix on the begining of the filename.
This four part series will introduce cf beginners to the fusebox frame work and help them get a grasp of this powerful technology.
Dynamically Create and Manage Application variables and set them on the fly in your applications. This tutorial will work best for situations that involve reusing the same application architecture for multiple sites, if application variables are changed often or if application variables wish to be changed without going into the code.
This tutorial digs deep into recursion in ColdFusion, and provides practical solutions to real-world development issues: breadcrumbs, sitemaps, and select box options.
You can use these simple loops in place of many lines of code to clear out or delete session variables
An advanced set of customizable tags for validating FORM values on the Server-side using User-Defined Functions
Use ASP.NET-style master pages to replace your header/footer files for web page layout
we will split this tutorial in few Parts like this!
1. Create a Upload Form
2. Upload a File
2.2 Check to See if the Image size is not extensibly large.
3. Change the Extension of the JPEG for rendering easily in the webpage and with less Processing time.
4. Resize the Image If required (Optional)
5. Let's Also Include the Watermark Option to watermark the JPEG Image (Optional)
6. Redirect to the User to the End Page to View the Uploaded Image
This tutorial will demonstrate how to speed up development and simply your life by using template delivery in FuseBox and CFC's.