ColdFusion processing files uploaded with multiple attribute in input tag

Question

Hello, all,I'm attempting (for the VERY first time) to code a function that will take files posted via HTML5 form from an <input type="file" multiple="multiple" name="images" /> tag.Specifically, how do I determine how many files were selected for upload on the server-side?The aim is to use CFFILE to READASBINARY the images, then insert them directly into a MySQL database.  (This last part I think I've got down pat.)V/r,^_^

WolfShade · Accepted Answer

Okay.. this is CF10, so I don't have the luxury of setting forms to submit multiple elements (like checkboxes, radio buttons, or other elements that submit a comma-delimited list of data) as an array instead of a list.. however..

What I discovered is that the multiple file input submits a comma-delimited list of files.

So, what I've learned is that if the form is submit, use REMatchNoCase() on form.fieldnames looking for the name of the file input element, and the length of the array will be the number of files uploaded.

<cfif StructKeyExists(form,'manyFiles')>
    <cfdump var="#form#" />
    <cfset results = REMatchNoCase('manyFiles',form.fieldnames) />
    <cfoutput>There are #arrayLen(results)# files being uploaded.</cfoutput>
</cfif>

The downside to this VERY simplistic code is that the form element exists even if no file is selected, so it will always show as at least one. Adding validation to make sure the one has something other than a blank value would be a good idea; but for the sake of brevity, I'm not adding that, here.

HTH,

^_^

WolfShade · Answer

Has anyone worked with uploading multiple files from one input type="file" element???V/r,^_^

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