Enable zip file downloading from query results

[Delfos, Jacob]

Hi Xiaopeng,
 
I think for a single file, you can do:
<a href="zipfile.php?filename=[filename]">download zipped file</a>
 
For downloading all files, I don't think there is a very straightforward
way to do this, except by building up a URL on the fly. Perhaps you
could use javascript to add to the URL, for example at the beginning of
the template put:
 
url="<a href=zipfile.php?filename='";
 
and then for each record, do:
 
url+="[filename],";
 
then at the end of the template:
 
url+="'>download all</a>";
document.write(url);
 
This is untested code, but I think that's how I would go about it. You
would have to change zipfile.php to read in url, and use "explode" to
get the file from the comma delimited list.
 
regards,
 
Jacob
 
 
 


________________________________

	From: Xiaopeng Xiong [mailto:xpxiong at purdue.edu] 
	Sent: 16 October 2006 06:26
	To: Delfos, Jacob; MAPSERVER-USERS at LISTS.UMN.EDU
	Subject: Re: [UMN_MAPSERVER-USERS] Enable zip file downloading
from query results
	
	
	Thanks for the help. It works on the server side.
	 
	But there are still another part of the problem. When the query
result is returned to the 
	query template, how to access the "FileLink" attribute of each
record? And how to 
	send these FileLinks to server side PHP file?
	 
	 
	Thanks,
	Xiaopeng
	 
	 
	 

		----- Original Message ----- 
		From: Delfos, Jacob <mailto:Jacob.Delfos at maunsell.com>  
		To: Xiaopeng Xiong <mailto:xpxiong at PURDUE.EDU>  ;
MAPSERVER-USERS at LISTS.UMN.EDU 
		Sent: Thursday, October 12, 2006 11:29 PM
		Subject: RE: [UMN_MAPSERVER-USERS] Enable zip file
downloading from query results

		Hi Xiaopeng,
		 
		There is a file from "Catalist Creative" on their
website, which does that:
		 
		http://www.catalistcreative.com/tools/zipfile.php.txt
		 
		I have used it a fair bit for this purpose. You
basically have to modify it to point to the right files. If you use it,
please make the following change, otherwise you will run into problems
if you try to open the zip-file straight from Internet Explorer:
		 
		Before the lines that say "Header ("Content ........",
put another line that says:
		 
		Header("Cache-Control: must-revalidate, post-check=0,
pre-check=0");
		 
		 
		regards,
		 
		Jacob
		 
		 
		
		

________________________________

			From: UMN MapServer Users List
[mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of Xiaopeng Xiong
			Sent: 13 October 2006 09:19
			To: MAPSERVER-USERS at LISTS.UMN.EDU
			Subject: [UMN_MAPSERVER-USERS] Enable zip file
downloading from query results
			
			
			
			Hello List,
			 
			 
			I am very new to this field. I apologize if this
question is not related but I do appreciate any suggestions.
			 
			I have one index that can be queried using
mapserver. The query results are like follows:
			 
			Record   |     UL_X      |  FileLink
			1                456000
http://myweb.com/photo/15.tif
			2                460000
http://myweb.com/photo/38.tif
			3                464000
http://myweb.com/photo/41.tif
			 
			Now what I want to realize is to provide an
additional "Download_All" button in the query result page.
			Then when the user clicks the "Download_All"
button, all the files in "FileLink" will be compressed online 
			into one (e.g., .zip) file and downloaded.
			 
			How can this be realized? I'll apprecate any
help or some reference to read.
			 
			Thank you.
			 
			 
			Best,
			Xiaopeng

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