MACROMEDIA COLFUSION MX 7 - INSTALLING AND USING COLDFUSION MX, Reference

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144 Chapter 2: ColdFusion Tags
Usage
After a file upload is completed, you can get status information using file upload parameters. To
refer to parameters, use either the
cffile
prefix or, if you specified an alternate name in the
result
attribute, the name you specified there
.
For example, if you did not specify a name in the
result
attribute, access the
fileExisted
parameter as
#cffile.fileExisted#
. If you set the
result
attribute to
myResult
, however, access
fileExisted
as
#myResult.fileExisted#
.
Status parameters can be used anywhere that other ColdFusion parameters can be used.
Tip: The
result
attribute allows functions or CFCs that get called from multiple pages at the same
time to avoid overwriting the results of one call with another.
Note: The
file
prefix is deprecated, in favor of the
cffile
prefix. Do not use the
file
prefix in new
applications.
Tip: If your page is uploading a file that was selected on a form or was otherwise sent to your page via
a multipart/form-data HTTP message, you can determine the approximate size of the file by checking
the value of the
CGI.content_length
variable. This variable includes the file length plus the length of
any other request content.
The following file upload status parameters are available after an upload:
mode Optional Applies only to UNIX and Linux. Permissions. Octal values of
chmod command. Assigned to owner, group, and other,
respectively. For example:
• 644: assigns read/write permission to owner; read
permission to group and other.
•
777: assigns read/write/execute permission to all.
attributes Optional Applies to Windows. A comma-delimited list of attributes to
set on the file.
If omitted, the file's attributes are maintained.
Each value must be specified explicitly. For example, if you
specify
attributes = "readOnly"
, all other attributes are
overwritten.
•
readOnly
•
hidden
•
normal (if you use this option with other attributes, it is
overridden by them)
result Optional Allows you to specify a name for the variable in which
cffile
returns the result (or status) parameters. If you do not specify
a value for this attribute,
cffile
uses the prefix ‘cffile’. For
more information, see the Usage section.
Parameter Description
attemptedServerFile Initial name ColdFusion used when attempting to save a file
clientDirectory Directory location of the file uploaded from the client’s system
clientFile Name of the file uploaded from the client’s system
clientFileExt Extension of the uploaded file on the client system (without a period)
Attribute Req/Opt Default Description