Storing files in varbinary (max) db

Once more, due to the needs of the company and the compliance rules, I need a task outside of the typical scope/method that I'm used to.

We need to store data of consent within a database and at the same time, have the ability to attach a file to the record.

I must have been through more than a hundred web messages looking for the real answer, but have not had much luck. Probably doesn't help that I'm a PHP Coder and not a true blue coldfusion programmer...

I have a form where I am using the following method to store the file in the db and a varbinary field (max).

1. (cffile action = "upload") download the file of the form defined in a temporary directory. Accepted file types are images, doc, pdf, or txt. Maybe .zip on the line.

2. (cffile action = "readbinary") read the file

3 write the the db file using cfsqltype cf_sql_varbinary and store the file name and the extension to a field of type varchar.

4 (action = 'delete' cffile) remove the temporary file

I have a page of recovery that I use to model and test my code to retrieve the file. The original idea is to provide a hyperlink on the page where the file will be recovered from the db, considered as an attachment and simply let the user download the file, rather than points in the pages.

The recovery code works in the following way:

1 win an Id associated with the record in the Database

2. (cfquery) to extract the file and the name of the db

3. (cfswitch) on the name of the file to determine the MIME type associated with the file.

4. it's where it doesn't work too well...

I have a statement (cfheader and cfcontent) to try to pull information from the database.

< name cfheader = "content-disposition" value = "attachment; filename =" #qGetImage.ImageName # ">"

< cfcontent type = "" #sMime # "file =" #qGetImage.ImageFile # ">"

It is the essence of the current code. Now, application/octet-stream etc tried to look for the file from the database to a file.

I got to work with images very well using the cfimage... tag, but it was used simply to check that registration in the BDD has not been damaged in any way. If I am invited by a file download it just uses the retrieve.cfm? starts = # (where #= registration identification number) as the name of the file and, of course, does not download correctly because of the type of file name and the missing extension. Juggling code around, I'll have a ByteArray objects cannot be converted to error strings.

I have read and implemented during the last hours of 4 or more with no chance then use this as a last result for this problem.

I am able to use a simple routine (cfheader/cfcontent) to export all the files in the db or will I have different calls for different files?

Really hoping for a glimpse into the present and thank you,

-a drew

The error that I'm focusing on is ByteArray objects cannot be converted to strings.

This type of error means generally that you transmit binary data in a function/tag when it expects a string.

If qGetImage.ImageFile contains binary data, use "variable" cfcontent attribute.  The 'file' attribute is used when you are referencing a physical file, and the value would be a path such as c:\somefolder\myImageName.jpg.

http://livedocs.Adobe.com/ColdFusion/8/htmldocs/help.HTML?content=Tags_c_11.html

Tags: ColdFusion

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