Another option, which Rails has a lot of good documentation on, is to
create a row in your database which represents the image file, and
contains all the related meta data as well as a unique id number, and
then just keep the actual images in the filesystem named #.jpeg or
some such thing, where the # is the row ID number. This is very
common, and good practice for speed as well, because it allows you to
eliminate variable width columns in the table in many cases, which
gives your database server software an advantage in being able to
accurately guess where the next row begins, and skip through without
parsing all the data in every row leading up to it.
On 06/02/2009, at 10:14 AM, Cornelius Jaeger wrote:
cheers john
hm, seems strange eh, you'd think this is something that is just
possible.
many thanks for the link, i'll work it tonight.
alternatively i'll have to copy the image to the file system after
all and serve it from the webserver.
cheers
cornelius
On 03.02.2009, at 21:32, John Beppu wrote:
Roland just showed you how to inline it.
Here's a little article on the technique he's using:
http://jimbojw.com/wiki/index.php?title=Data_URIs_and_Inline_Images
However, as Jenna said, this technique doesn't work in IE. Her
first suggestion is probably the path of least resistance.
--beppu
On Tue, Feb 3, 2009 at 5:35 AM, Cornelius Jaeger <[email protected]
> wrote:
Hi Jenna, Roland
Thanks for your responses.
How can I get the image inline in the html, rather than downloading
it to the user?
I'm not at all sure how to use markaby to stream the image data
into something the img tag will understand.
Many Thanks for helping
Cornelius
On 03.02.2009, at 01:58, Jenna Fox wrote:
Make a controller with a get method to retrieve the image, then,
have some code like this in it, supposing image_data is a string or
something:
headers['Content-Type'] = 'image/png'
headers['Content-Length'] = image_data.length.to_s
return image_data
On 03/02/2009, at 10:58 AM, Cornelius Jaeger wrote:
hi all
just working on my first camping hack and new to ruby as well.
i've figured some things out and uploading images into the
database, but i'm not sure how to get the data displayed in the
browser.
i'd like to stream it straight from the db, not copy it to the fs
first.
obviously img(:src => file_data) doesn't work.
any pointers or reading assignments would be v. welcome.
many thanks
cornelius
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