Ricardo Parente's Blog » Components

ColdFusion and Basecamp's API

rparente — Mon, 28 Feb 2011 18:26:40 +0000

Recently I began working on a project that will integrate with Basecamp’s API to fetch and sync data back and forth. My approach to the application was simple. I began by designing the interface, marking it up, and getting some basic jQuery interactions functional. After a few hours it was time to begin working with Basecamp’s rather simple to use API.

By Ryan Jeffords

Read the complete article here.

Lorem Ipsum ColdFusion Builder Extension, by Matt Gifford

rparente — Thu, 18 Mar 2010 21:07:39 +0000

Matt Gifford created the “Lipsum Generator” for ColdFusion Builder based on the CFC Lipsum written by Tim Blair. Both products are posted on RiaForge.org. As himself said, “you have to love the CF community and sharing code”.

Here is the link to his article.

ColdFusion Twitter Library Updated

rparente — Wed, 17 Feb 2010 20:12:29 +0000

Warning: fopen(/a0030277fc9284d75cab3c6e1bc40cf06b4fa128) [function.fopen]: failed to open stream: Permission denied in /home1/ricards2/public_html/wp-content/plugins/fv-code-highlighter/Includes/Cache.php on line 69

The ColdFusion library to communicate with the Twitter API was written by a friend from Brazil, Pedro Claudio, and it is available at RiaForge.

Library that enables integration of ColdFusion with the Twitter API.

Usage:


twitter = createObject('component','Twitter').init('username','password');
/* sent message */
xmlString = twitter.updateStatus('Message for your friend','FriendID','xml');
xmlString = twitter.updateStatus('Message','','xml');

http://cftwitterlib.riaforge.org/

Creating Globally-Accessible User Defined Functions

rparente — Tue, 08 Dec 2009 16:07:10 +0000

Congratulations Ben Nadel for your experiences on undocumented features of ColdFusion !
I liked the idea of playing with hidden features.

I’m wrinting this re-post just to remind me where I can get this information later.
getPageContext().getFusionContext().hiddenScope

Here is the link to the full article on Ben’s blog.

Scripting Functions for ColdFusion 7 Users

rparente — Wed, 04 Feb 2009 04:31:55 +0000

In my work environment we have ColdFusion 7 and I like to write my templates in cfscript, but since CF7 does not support some new scripting functions in CF8, I wrote a component to mimic those functions and allow me to stay focused on the scripting.

Well, it is not my original idea, I saw it from other blogs, but I added some value to it with some additional functions.
You may download the component here

First of all, I instantiate the component as a local variable called CF, then I call it from the script as cf.functionName.
Here is the list of functions available in the component:

directory: cf.directory(action, directory, newdirectory, sort, recurse,filter)
file: cf.file(action, file, output, source, destination, charset)
dump: cf.dump(var, label, expand)
abort: cf.abort()
query: cf.query(query, datasource)
location: cf.location(url, addToken)
flush: cf.flush(interval) do not use it if you have a cflocation in your template otherwise the cflocation will not work.
trace: cf.trace(text, interval, crlf) used to display messages on screen during the process for debugging purposes. Same as cf.flush, if you use it, any cflocation in your template will not work.
mailIt: cf.mailIt(mailFrom, mailTo, subject, msg, failTo, mailType) sends email messages
postError: cf.postError(message, sendMail, withTrace, abort, cfLogFile, webmasterEmail, errorType, thread, date, time, aplication, template, line) logs the error, sends message, abort, etc.
fileWriteUTF8: cf.fileWriteUTF8(sFilePath, sInput) creates an empty text file with the BOM header for UTF-8, then you can append to it using cf.file

Here is the component: result = structNew(); result.status = true; result.content = ""; return result; #arguments.query# #arguments.text# #arguments.msg# text="#arguments.message#" /> text="#arguments.message#" /> Error Message



         ERROR Occurred in #this.applicationName#


         Message time stamp: #dateFormat(now(),"yyyy-mm-dd")# #timeFormat(now(),"HH:mm:ss")#


         

            Template: #arguments.template#


         

         

            Line: #arguments.line#


         

         #arguments.message#



      

      

      

      

   

   

      

      

   

      

   

   





   

   

   

   // declare jWrite object

   var jWriter = "";

   // create the file stream

   var jFile = createobject("java", "java.io.File").init(sFilePath);

   var jStream = createobject("java", "java.io.FileOutputStream").init(jFile);

   result = resultInit();

   try {

      // output the UTF-8 BOM byte by byte directly to the stream

      jStream.write(239); // 0xEF

      jStream.write(187); // 0xBB

      jStream.write(191); // 0xBF

      // create the UTF-8 file writer and write the file contents

      jWriter = createobject("java", "java.io.OutputStreamWriter");

      jWriter.init(jStream, "UTF-8");

      jWriter.write(sInput);

      // flush the output, clean up and close

      jWriter.flush();

      jWriter.close();

      jStream.close();

   } catch (Any excpt) {

      result.status = false;

      result.content = excpt;

   }

   return result;

So, from my template I will call the cffile function for example like this:



cf = createObject("component","cffunctions");

result = cf.file(action="read" file=expandPath(myFile.txt);

if (not result.status) cf.postError (result.content.message & "
" & result.content.detail, true, true, true); // this will log the error, send a message, show on screen and abort

myDoc = result.content;

Another example, listing a directory and deleting its contents:



result = cf.directory(action="list", directory=expandPath(myDirectory), filter="*.jpg");

if (not result.status) cf.postError(result.content.message & "
" & result.content.detail, true, true, true); it logs error, sends message, outputs error and aborts

qDir = result.content;

for (i=1; i lte qDir.recordCount; i=i+1){

   result = cf.file(action="delete", file=qDir.directory[i] & "\" & qdir.name[i]);

   if (not result.status) cf.postError(result.content.message & "
" & result.content.detail, true, true, false); // it logs error, sends message, output error and continue without aborting

}

Generating a UTF-8 file with BOM header:



result = cf.fileWriteUTF8(expandPath(myFile.xml), '');

if (not result.status) cf.postError(result.content.message & " - " result.content.detail, true, true, true);

//.... here you add your logic to generate the content for the file

result = cf.file(action="append", file=expandPath(myFile.xml), output=myContent, newLine=true);

if (not result.status) cf.postError(result.content.message & " - " result.content.detail, true, true, true);

Feel free to add more functions to the component, but please don’t forget to send me a copy so I can update mine too.

Query Sorted Results in HTML Table

rparente — Sat, 25 Oct 2008 01:42:15 +0000

Nowadays we have ways of sorting the display results from a query without resubmitting the page by using Ajax. Long time ago I wrote a custom tag with the help of my coworker Jason Sheppard to do the same by submitting the page with the new sort field information.

So, for those who do not want Ajax or do not know how to do it, I converted my custom tag into a component and I’m making it available here. Feel free to implement more features, just don’t forget to send me a copy.

You may download the code here.

To call the function you will need to pass the following required arguments:

datasource: your datasource
tableName: the data table
fieldNames: the columns you want to retrieve

There are other optional parameters:

whereClause
groupClause
sortBy
orderBy
loadURL
queryName
dbUserName
dbPassword
border
cellPadding
cellSpacing
thBgColor
tdBgColorEven
tdBgColorOdd
tdBgColor
rowStripes
thTextColor
tdTextColor
width
align
fontFamily
fontSize
thFontSize
isFusebox

Here is the component:
select #arguments.fieldList# from #arguments.tableName# where #arguments.whereClause# group by #arguments.groupClause# order by #arguments.sortBy# #arguments.orderBy#

#field#
#evaluate(arguments.queryName & "." & field)#



   

   

   





function QueryString(str,isFusebox) {

   var newstr="";

   for (i=1;i LTE ListLen(str,"&"); i=IncrementValue(i)) {

      if(not isFusebox){

         if (NOT ReFindNoCase("sort=", ListGetAt(str,i,"&")) AND NOT ReFindNoCase("ord=", ListGetAt(str,i,"&")) AND NOT ReFindNoCase("fuseaction=", ListGetAt(str,i,"&"))) {

            newstr=ListAppend(newstr,ListGetAt(str,i,"&"),"&");

      }

   }

   else {

      if (NOT ReFindNoCase("sort=", ListGetAt(str,i,"&")) AND NOT ReFindNoCase("ord=", ListGetAt(str,i,"&"))) {

         newstr=ListAppend(newstr,ListGetAt(str,i,"&"),"&");

         }

      }

   }

   return newstr;

}

Here is how you call the component:







com = createObject("component","sortedQueryDisplay");

result = com.qDisplay(

	tableName = "myTable"

,	datasource = "myDatasource"

,	fieldList = "productID,title,price"

,	sortBy = "#url.sort#"

,	orderBy = "#url.ord#"

);



#result#