[Zope] Viewing a Blob using DTML

[Tino Wildenhain]

Hi working,

whats the reason in not using a python script? You said early
you had it working with python script. So why hassle with the
ugly DTML?

Regards
Tino

--On Donnerstag, 21. November 2002 12:12 -0500 working4aliving 
<working4aliving@hotmail.com> wrote:

> Thanx Matt and Maik... You both steered me, and it works... (needless to
> say, I'm pretty damn happy right now :))) )
> Seems like I didn't need the RESPONSE.setheader (yet???)
>
> Here's the method (requestImage1)
>
> <form action="selectImage1">
> <input type="text" name="Id"><br>
> <input type="submit">
> </form>
>
> Here's the python script(selectImage1)
># image1 is the name of the field
> result = []
> lob = ['image1']
> for row in context.sql_db_image1(id=id):
>   lob = row['image1']
> return lob
>
>
>
> ----- Original Message -----
> From: "Matthew T. Kromer" <matt@zope.com>
> To: "working4aliving" <working4aliving@hotmail.com>
> Cc: <zope@zope.org>
> Sent: Thursday, November 21, 2002 11:28 AM
> Subject: Re: [Zope] Viewing a Blob using DTML
>
>
>> working4aliving wrote:
>>
>> > Hi, I've been working on this for a little, and am stuck... I'm a
>> > newbie with zope.
>> > I have a python script that calls a zsql method (mysql), and DOES
>> > display the image correctly.
>> >
>> > (calling the zsql method does not, by the way, it only displays
>> > "machine code" (old joke.hahaha;) , but that's ok, I think)
>> >
>> > When I type the url directly into the browser, and insert my id
>> > variable
> for
>> > the record, it'll work from the browser, but I can't get it to work
> through
>> > dtml.  It will only display the "machine code".
>> >
>> > Is there a way to just call the url from dtml while inserting the ID
>> > variable at  the end? I'm pretty stuck on this, and could really use an
>> > expert
>> >
>> > Here's the python url that works...
>> >
>> > http://localhost:8080/blobTest/selectImage1?id=12686
>> >
>> > Is this the easiest way to do it?  I've found some various
>> > documentation
> on
>> > the web, and although helpful, just doesn't get me there....
>> >
>> >
>> >
>>
>> Most likely you need to set the proper content-type header, and make
>> sure no "extra" stuff goes out on the page besides the image.
>>
>> For example:
>>
>> <dtml-call RESPONSE.setHeader('content-type', 'image/jpeg')
>>  > <!-- Note clever use of line wrap inside tag!
>> --><dtml-var "selectImage(id=12686)">
>>
>> --
>> Matt Kromer
>> Zope Corporation  http://www.zope.com/
>>
>>
>>
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