I'll look into it.
On Feb 27, 2013, at 12:45 PM, Michael Larue <[email protected]> wrote:
> Wednesday, February 27, 2013 5:47:45 PM
>
> Hi,
>
> Using Active4D 6.0r6, 4D 12.4 on Mac 10.6.8, using both Safari and FireFox,
> I've run into the following problem with file uploads.
>
> I have a simple form with the following:
>
> <form method="post" action="return.a4p" enctype="multipart/form-data">
> <input type="file" name="A4D_Upload" size="40"><br><br>
> Notes on this file:<br>
> <textarea name="f_newnotes" cols="70" rows="10"> </textarea><br>
> <input TYPE="submit" name="f_ReturnBtn" VALUE="Return file">
> </form>
>
> Now, when I submit the form without specifying any file to upload, I get all
> of the fields listed:
>
> A4D_Upload
> f_newnotes
> f_ReturnBtn
>
> I see this in the debugging dump code I have on the "return.a4p".
>
> However, as soon as I select a file on the form and submit it, the
> "A4D_Upload" field drops off the list of fields submitted. (Maybe this is
> correct?)
>
> Still, I can use the following commands:
>
> $vSize:=get upload size("A4D_Upload")
> $vName:=filename of(get upload remote filename("A4D_Upload"))
>
> and I get values, so the upload must be there.
>
> Finally, however, when I use the following command:
>
> $vNotUsed:=save upload to field("A4D_Upload";[Docs]Fork_Data)
>
> where "[Docs]Fork_Data" is a BLOB field in the database, I get an Active4D
> error on this line of code with the message:
>
> Reference to an undefined variable or value
>
> I tried both versions of this command, using a direct field reference, and
> then a pointer to the field, and both of them throw an error on this line.
>
> Anybody have any ideas what I might be doing wrong here?
>
> I finally programmed around it by using the "copy upload" Active4D command to
> save the uploaded file. But even that had problems; I had the following code:
>
> $vCurrPath:=directory of(current path)+$vName
> copy upload("A4D_Upload";$vCurrPath)
> DOCUMENT TO BLOB($vCurrPath;[Docs]Fork_Data)
>
> but again, Active4D barfed on the "DOCUMENT TO BLOB" command (same error,
> "reference to an undefined...").
>
> I finally got it working with the following code:
>
> $vCurrPath:=directory of(current path)+$vName
> copy upload("A4D_Upload";$vCurrPath)
> C_BLOB($vBLOBFile)
> DOCUMENT TO BLOB($vCurrPath;$vBLOBFile)
> [Docs]Fork_Data:=$vNewFile
>
> However, seems like a lot of workaround instead of just using the nice, one
> line command "save upload to field". Plus, now I've got a bunch of copies of
> the uploaded document floating around:
>
> 1) the original upload that Active4D receives
> 2) the copy from "copy upload"
> 3) another copy in the $vBLOBFile variable
> 4) and finally, the file where I want it in [Docs]Fork_Data
>
> Of course, I can delete #2 and #3 right away, and Active4D will get rid of #1
> automatically; still, if I've got a large file, that's a lot of copies (and
> memory) that's getting eaten up by this file.
>
> It seems like somehow Active4D doesn't like a field reference to a BLOB; at
> least that's where I keep getting the error message in several of the
> commands (in both "save upload to field" and "DOCUMENT TO BLOB"), until I use
> a variable, then copy this into the field. Also the "save upload to field"
> command doesn't seem to work either using a direct field reference or a
> pointer to that field.
>
> Again, am I doing something wrong in any of my previous attempts (prior to
> the workaround version)?
>
> Thanks!
>
> Michael Larue
>
>
>
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Regards,
Aparajita
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