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[solved] force file download
17 February 2011 at 3:52am
I have a controller method that is supposed to force-download an asset uploaded via backend. The method recieves the ID of such asset and uses SS_HTTPRequest.
The problem is that although i can directly access the asset in the template via $File.URL I can't read it via php because file_exists says $File.URL does not exists.
This is the method source
public function download(){
$assetID = $this->request->param('ID');
$do = DataObject::get_by_id('File', $assetID);
if($do && file_exists($do->URL)){
return SS_HTTPRequest::send_file(file_get_contents($do->URL), $do->Name);
}else{
echo 'error with ' . $do->URL . ' (' . file_exists($do->URL) . ')';
return false;
}}
Am I missing something here?
Thanks in advance -
Re: [solved] force file download
17 February 2011 at 4:04am Last edited: 17 February 2011 4:06am
After an our of trying i solved it with this piece of code
public function download(){
$assetID = $this->request->param('ID');
$do = DataObject::get_by_id('File', $assetID);
if($do){
return SS_HTTPRequest::send_file(file_get_contents(Director::absoluteBaseURL() . $do->Filename), $do->Name);
}else{
return false;
}}
Seems the combination "Director::absoluteBaseURL() . $do->Filename" did the trick.
Still I would like to know if this was the best approach for the situation
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Re: [solved] force file download
17 February 2011 at 10:28am
Its a decent method. The only other thing I've ever done is manually build the whole response header when pushing a temporary zip file to the browser, which is even messy-er
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Re: [solved] force file download
30 September 2011 at 1:13am
looks nice but I can't seem to find how to use it in template. can you help ?
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Re: [solved] force file download
30 September 2011 at 2:22am
In a template you use $File.Filename to get the path of File. $File.Title will return the name of the file with the dashes converted to spaces. So my-filename becomes "my filename". and $File.Name will return the system filename with dashes
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Re: [solved] force file download
30 September 2011 at 2:26am
In the particular case of the project I was developing, the part of the template that used the controller method on the template looked like this
<% control Songs %>
<li>
<span class="title bodoni">{$Pos}. $Title</span>
<a href="$Top.Link(download)/$SongFile.ID" title="$Title.XML">Download</a>
</li>
<% end_control %>I hope this helps.
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Re: [solved] force file download
30 September 2011 at 2:31am
What does the Dataobject look like? You're calling $Top but you didn't include the parent control. $Top temporarily breaks you out of the $Songs control loop
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Re: [solved] force file download
30 September 2011 at 2:36am
That's right, it DOES break you out of the $Songs control loop, but that's the whole point since the method I defined is in the controller and not in the model, using $Link inside the $Songs control loop would only give me the link to the current song being listed.
Instead, with $Top, I get the link to the current page and its "download" method, passing also the current $SongFile.ID.
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