I'm not sure if this will help you but it's how I display BLOB type
images.
Like Ryan said, you'll have a separate action in your controller
specifically for displaying your photo.
// PHOTOS CONTROLLER
function displayPhoto()
{
$this->set('photo', $this->Photo->find('first',
array('conditions' => array($conditions))));
}
// display_photo.ctp
if(!empty($photo))
{
Configure::write('debug', 0);
header('Content-type:'.$photo['Photo']['type']);
header('Content-length: '.$photo['Photo']['length']);
echo $photo['Photo']['file'];
}
// Now to display your photo in your views
$html->tag('img', null, array(
'src' => Router::url(array(
'controller'
=> 'photos',
'action' =>
'displayPhoto/'.
$photo_id
)
),
'style' => ''
)
);
I hope that helps you out some, it may not be pretty but it's mine and
it works :)
You can nest the image tag inside of $html->link() to point to your
download function.
- Ed
On Jan 19, 9:09 am, euromark <[email protected]> wrote:
> put this in your app helper:
>
> /**
> * display image tag from blob content
> * enhancement for HtmlHelper
> * 2010-11-22 ms
> */
> function imageFromBlob($text, $options = array()) {
> //<img alt="" src="data:image/png;base64,' .
> $this->_getBase64() .
> '" /><br/>
>
> $text = 'data:image/png;base64,' . base64_encode($text);
> $image = sprintf($this->tags['image'], $text,
> $this->_parseAttributes($options, null, '', ' '));
>
> return $image;
> }
>
> $this->Html->imageFromBlob($blob);
>
> On 19 Jan., 06:22, Ryan Schmidt <[email protected]> wrote:
>
>
>
>
>
>
>
> > On Jan 18, 2011, at 23:04, pinastro wrote:
>
> > > exactly , I am reading about Downloading the image ..
>
> > > and somehow I am able to display the image too...but it's RAW image
> > > CONTROLLER :::
>
> > > function download($id) {
> > > Configure::write('debug', 0);
> > > $file = $this->MyFile->findById($id);
> > > $type= $file['MyFile']['type'];
> > > $length = $file['MyFile']['size'];
> > > $nam = $file['MyFile']['name'];
>
> > > header('Content-type: $type');
> > > header('Content-length: $length'); // some people reported
> > > problems
> > > with this line (see the comments), commenting out this line helped in
> > > those cases
> > > header('Content-Disposition: attachment; filename=$nam');
> > > echo $file['MyFile']['data']; ///WHEN I COMMENT THIS LINE
> > > ....
> > > ONLY FILE LOCATION (database) is PRINTED
>
> > > //$this->set(compact('file','nam'));
> > > exit();
> > > }
>
> > > VIEW
>
> > > <?php
> > > echo "DISPLAY PINASTRO";
> > > header("Content-type: image/jpg");
> > > echo print_r((explode("/",$data['MyFile']['data']))); //THIS WAS FOR
> > > TESTING PURPOSE THOUGH
> > > ?>
>
> > > not getting how will i use <IMG> tag ???
>
> > Read what I wrote again. You'll have two actions in your controller. One,
> > this download action you've shown us, does nothing other than send the PNG
> > to the browser. The second one will show a normal CakePHP ctp view file,
> > and in that view, you'll create an img tag, just as you would to display
> > any other static image, except that its src (I think I wrote href before
> > but I meant src) will point not to a static file on disk but to the URL of
> > your download action (i.e. "$this->link(array('action' => 'download',
> > ...))").
>
> > Try getting the download action working first, so that when you call it up
> > in the browser, it displays the image by itself. If it's not working, maybe
> > read about media views, which handle a lot of this header business for you.
--
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