Re: [Zope] Accessing .gif on disk with Python Product?
From: Martijn Pieters [EMAIL PROTECTED] I still think something else was broken, SiteAccess should (and does, as far as I know) stay away from SCRIPT_NAME. Yep. Environment/CGI variables are left alone by the virtual hosting machinery; only Zope-specific ones are altered. An example of a virtual hosting setup which won't work with SCRIPT_NAME: Apache on machine www.foo.com proxies requests for /Zope/* to machine z.foo.com:8080. In this case SCRIPT_NAME is blank, and the src of an image on http://www.foo.com/Zope/page constructed with it would resolve to http://www.foo.com/image.gif, rather than http://www.foo.com/Zope/image.gif. This is not a contrived example -- people are doing this. SCRIPT_NAME will work in simple cases, but BASE1 ought to work in all cases, and using it is a better habit to have in general. Cheers, Evan @ digicool 4-am ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Accessing .gif on disk with Python Product?
On Tue, Aug 08, 2000 at 12:45:02PM -0400, Evan Simpson wrote: From: Martijn Pieters [EMAIL PROTECTED] I still think something else was broken, SiteAccess should (and does, as far as I know) stay away from SCRIPT_NAME. Yep. Environment/CGI variables are left alone by the virtual hosting machinery; only Zope-specific ones are altered. An example of a virtual hosting setup which won't work with SCRIPT_NAME: Apache on machine www.foo.com proxies requests for /Zope/* to machine z.foo.com:8080. In this case SCRIPT_NAME is blank, and the src of an image on http://www.foo.com/Zope/page constructed with it would resolve to http://www.foo.com/image.gif, rather than http://www.foo.com/Zope/image.gif. This is not a contrived example -- people are doing this. SCRIPT_NAME will work in simple cases, but BASE1 ought to work in all cases, and using it is a better habit to have in general. We better file a Collector item on this then, as the current Zope Management Interface uses it still. -- Martijn Pieters | Software Engineermailto:[EMAIL PROTECTED] | Digital Creations http://www.digicool.com/ | Creators of Zope http://www.zope.org/ | ZopeStudio: http://www.zope.org/Products/ZopeStudio - ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Accessing .gif on disk with Python Product?
From: Martijn Pieters [EMAIL PROTECTED] SCRIPT_NAME will work in simple cases, but BASE1 ought to work in all cases, and using it is a better habit to have in general. We better file a Collector item on this then, as the current Zope Management Interface uses it still. Done. I also tacked on a proposal to add BASE_PATHn and URL_PATHn variables to ease the transition. Cheers, Evan @ digicool 4-am ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Accessing .gif on disk with Python Product?
On Mon, Aug 07, 2000 at 11:21:53AM -0300, Performance.net Strategic Internet Solutions
wrote:
I am writing a python product and want to display a GIF file in some of the
manage_pages. It is not meant to be the "icon" property of the class, just
an image to be included in DTML. I included it in my class as follows:
chooser = ImageFile('images/chooser.gif',globals()),
but when I call it in DTML (dtml-var chooser) I get the following:
ImageFile instance at 014F1D90
I thought maybe I could use an instance of the Image class:
chooser = OFS.Image('images/chooser.gif',globals()),
but this doesn't seem to work.
How do you create an instance of an Image in a Python Product?
ImageFile objects do not (like ZODB stored Image objects) generate an IMG tag
when called. Image object, when called, generate an IMG tag that points the
browser to the correct address to retrieve tha actual image.
With an ImageFile object, you need to construct the tag yourself. If this
class has an instance foo, with this ImageFile attribute chooser, and the
instance foo is stored in the root of your Zope ZODB, you need to point the
browser to http://yoursever/foo/chooser. So your DTML needs to generate the
following HTML:
img src="http://yoursever/foo/chooser"
I don't know enough about your DTML, but if it is another attribute of the
same class, you could use one of the URLx REQUEST variables or something to
construct the URL for the image. Also, absolute_url() called on the foo
instance may also work for a base URL.
Hope this helps.
--
Martijn Pieters
| Software Engineermailto:[EMAIL PROTECTED]
| Digital Creations http://www.digicool.com/
| Creators of Zope http://www.zope.org/
| ZopeStudio: http://www.zope.org/Products/ZopeStudio
-
___
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Re: [Zope] Accessing .gif on disk with Python Product?
- Original Message -
From: "Martijn Pieters" [EMAIL PROTECTED]
To: "Performance.net Strategic Internet Solutions"
[EMAIL PROTECTED]
Cc: "ZOPE Mailing List" [EMAIL PROTECTED]
Sent: Monday, August 07, 2000 12:19 PM
Subject: Re: [Zope] Accessing .gif on disk with Python Product?
On Mon, Aug 07, 2000 at 11:21:53AM -0300, Performance.net Strategic
Internet Solutions wrote:
I am writing a python product and want to display a GIF file in some of
the
manage_pages. It is not meant to be the "icon" property of the class,
just
an image to be included in DTML. I included it in my class as follows:
chooser = ImageFile('images/chooser.gif',globals()),
but when I call it in DTML (dtml-var chooser) I get the following:
ImageFile instance at 014F1D90
I thought maybe I could use an instance of the Image class:
chooser = OFS.Image('images/chooser.gif',globals()),
but this doesn't seem to work.
How do you create an instance of an Image in a Python Product?
ImageFile objects do not (like ZODB stored Image objects) generate an IMG
tag
when called. Image object, when called, generate an IMG tag that points
the
browser to the correct address to retrieve tha actual image.
With an ImageFile object, you need to construct the tag yourself. If this
class has an instance foo, with this ImageFile attribute chooser, and the
instance foo is stored in the root of your Zope ZODB, you need to point
the
browser to http://yoursever/foo/chooser. So your DTML needs to generate
the
following HTML:
img src="http://yoursever/foo/chooser"
I don't know enough about your DTML, but if it is another attribute of the
same class, you could use one of the URLx REQUEST variables or something
to
construct the URL for the image. Also, absolute_url() called on the foo
instance may also work for a base URL.
Hope this helps.
--
Martijn Pieters
| Software Engineermailto:[EMAIL PROTECTED]
| Digital Creations http://www.digicool.com/
| Creators of Zope http://www.zope.org/
| ZopeStudio: http://www.zope.org/Products/ZopeStudio
-
Okay, I've done the following:
# Create the method in the .py Class File
chooserIcon=ImageFile('images/chooserIcon.gif',globals()),
# Call from the .dtml File
img src="dtml-var absolute_url/chooserIcon" border=0
absolute_url() works and the URL points correctly to
http://myserver/foo/chooserIcon, but if I type in that URL directly, I get
a "Not Found" error as though the method does not exist. I've double-checked
that the image is there and named correctly, so it's not a syntax thing.
Perhaps I need to convert it to an "Image" object something like below?
# this doesn't work but illustrates the idea
chooserIcon = Image( ImageFile('images/chooserIcon.gif',globals() )
Help! =:)
Kevin
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Re: [Zope] Accessing .gif on disk with Python Product?
On Mon, Aug 07, 2000 at 01:12:03PM -0300, Performance.net Strategic Internet Solutions
wrote:
On Mon, Aug 07, 2000 at 11:21:53AM -0300, Performance.net Strategic
Internet Solutions wrote:
I am writing a python product and want to display a GIF file in some of
the manage_pages. It is not meant to be the "icon" property of the
class, just an image to be included in DTML. I included it in my class
as follows:
chooser = ImageFile('images/chooser.gif',globals()),
but when I call it in DTML (dtml-var chooser) I get the following:
ImageFile instance at 014F1D90
I thought maybe I could use an instance of the Image class:
chooser = OFS.Image('images/chooser.gif',globals()),
but this doesn't seem to work.
How do you create an instance of an Image in a Python Product?
ImageFile objects do not (like ZODB stored Image objects) generate an IMG
tag when called. Image object, when called, generate an IMG tag that
points the browser to the correct address to retrieve tha actual image.
With an ImageFile object, you need to construct the tag yourself. If this
class has an instance foo, with this ImageFile attribute chooser, and the
instance foo is stored in the root of your Zope ZODB, you need to point
the browser to http://yoursever/foo/chooser. So your DTML needs to
generate the following HTML:
img src="http://yoursever/foo/chooser"
I don't know enough about your DTML, but if it is another attribute of the
same class, you could use one of the URLx REQUEST variables or something
to construct the URL for the image. Also, absolute_url() called on the foo
instance may also work for a base URL.
Hope this helps.
Okay, I've done the following:
# Create the method in the .py Class File
chooserIcon=ImageFile('images/chooserIcon.gif',globals()),
# Call from the .dtml File img src="dtml-var absolute_url/chooserIcon"
border=0
absolute_url() works and the URL points correctly to
http://myserver/foo/chooserIcon, but if I type in that URL directly, I get
a "Not Found" error as though the method does not exist. I've double-checked
that the image is there and named correctly, so it's not a syntax thing.
Perhaps I need to convert it to an "Image" object something like below?
# this doesn't work but illustrates the idea chooserIcon = Image(
ImageFile('images/chooserIcon.gif',globals() )
Help! =:)
Hmm.. This is how Product Icons are stored, that is, as ImageFile objects. At
product init time, a ImageFile objetcs is created for the Product icon and
stroed in the special misc_ structure for later access.
Have a look through the Product initialisation code, which is started up in
OFS/Application.py::install_products().
--
Martijn Pieters
| Software Engineermailto:[EMAIL PROTECTED]
| Digital Creations http://www.digicool.com/
| Creators of Zope http://www.zope.org/
| ZopeStudio: http://www.zope.org/Products/ZopeStudio
-
___
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** No cross posts or HTML encoding! **
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Re: [Zope] Accessing .gif on disk with Python Product?
Right you are, here's how I solved it:
# __init.py__ for myProduct
misc_={
'chooserIcon': ImageFile('images/chooserIcon.gif',globals()),
}
# DTML file
img src="dtml-var absolute_url/misc_/myProduct/chooserIcon" border=0
Thanks!
Kevin
- Original Message -
From: "Martijn Pieters" [EMAIL PROTECTED]
To: "Performance.net Strategic Internet Solutions"
[EMAIL PROTECTED]
Cc: "ZOPE Mailing List" [EMAIL PROTECTED]
Sent: Monday, August 07, 2000 1:15 PM
Subject: Re: [Zope] Accessing .gif on disk with Python Product?
On Mon, Aug 07, 2000 at 01:12:03PM -0300, Performance.net Strategic
Internet Solutions wrote:
On Mon, Aug 07, 2000 at 11:21:53AM -0300, Performance.net Strategic
Internet Solutions wrote:
I am writing a python product and want to display a GIF file in some
of
the manage_pages. It is not meant to be the "icon" property of the
class, just an image to be included in DTML. I included it in my
class
as follows:
chooser = ImageFile('images/chooser.gif',globals()),
but when I call it in DTML (dtml-var chooser) I get the following:
ImageFile instance at 014F1D90
I thought maybe I could use an instance of the Image class:
chooser = OFS.Image('images/chooser.gif',globals()),
but this doesn't seem to work.
How do you create an instance of an Image in a Python Product?
ImageFile objects do not (like ZODB stored Image objects) generate an
IMG
tag when called. Image object, when called, generate an IMG tag that
points the browser to the correct address to retrieve tha actual
image.
With an ImageFile object, you need to construct the tag yourself. If
this
class has an instance foo, with this ImageFile attribute chooser, and
the
instance foo is stored in the root of your Zope ZODB, you need to
point
the browser to http://yoursever/foo/chooser. So your DTML needs to
generate the following HTML:
img src="http://yoursever/foo/chooser"
I don't know enough about your DTML, but if it is another attribute of
the
same class, you could use one of the URLx REQUEST variables or
something
to construct the URL for the image. Also, absolute_url() called on the
foo
instance may also work for a base URL.
Hope this helps.
Okay, I've done the following:
# Create the method in the .py Class File
chooserIcon=ImageFile('images/chooserIcon.gif',globals()),
# Call from the .dtml File img src="dtml-var
absolute_url/chooserIcon"
border=0
absolute_url() works and the URL points correctly to
http://myserver/foo/chooserIcon, but if I type in that URL directly, I
get
a "Not Found" error as though the method does not exist. I've
double-checked
that the image is there and named correctly, so it's not a syntax thing.
Perhaps I need to convert it to an "Image" object something like below?
# this doesn't work but illustrates the idea chooserIcon = Image(
ImageFile('images/chooserIcon.gif',globals() )
Help! =:)
Hmm.. This is how Product Icons are stored, that is, as ImageFile objects.
At
product init time, a ImageFile objetcs is created for the Product icon and
stroed in the special misc_ structure for later access.
Have a look through the Product initialisation code, which is started up
in
OFS/Application.py::install_products().
--
Martijn Pieters
| Software Engineermailto:[EMAIL PROTECTED]
| Digital Creations http://www.digicool.com/
| Creators of Zope http://www.zope.org/
| ZopeStudio: http://www.zope.org/Products/ZopeStudio
-
___
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Re: [Zope] Accessing .gif on disk with Python Product?
On Mon, Aug 07, 2000 at 01:38:56PM -0300, Kevin Howe wrote:
Right you are, here's how I solved it:
# __init.py__ for myProduct
misc_={
'chooserIcon': ImageFile('images/chooserIcon.gif',globals()),
}
# DTML file
img src="dtml-var absolute_url/misc_/myProduct/chooserIcon" border=0
misc_ is a root level object. Using absolute_url you are acquiring it into
your Instance URL, which is not necessary (and will hamper off-server
caching). Use dtml-SCRIPT_NAME; instead (which will give you the absolute url
of the root object in all cases):
img src="dtml-SCRIPT_URL;/misc_/myProduct/chooserIcon" border=0
--
Martijn Pieters
| Software Engineermailto:[EMAIL PROTECTED]
| Digital Creations http://www.digicool.com/
| Creators of Zope http://www.zope.org/
| ZopeStudio: http://www.zope.org/Products/ZopeStudio
-
___
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Re: [Zope] Accessing .gif on disk with Python Product?
From: Martijn Pieters [EMAIL PROTECTED] misc_ is a root level object. Using absolute_url you are acquiring it into your Instance URL, which is not necessary (and will hamper off-server caching). Use dtml-SCRIPT_NAME; instead (which will give you the absolute url of the root object in all cases): img src="dtml-SCRIPT_URL;/misc_/myProduct/chooserIcon" border=0 I sugget using "dtml-BASE1;", since SCRIPT_NAME doesn't work well with virtual hosting. Cheers, Evan @ digicool 4-am ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Accessing .gif on disk with Python Product?
Martijn Pieters wrote: On Mon, Aug 07, 2000 at 04:23:36PM -0400, Evan Simpson wrote: From: Martijn Pieters [EMAIL PROTECTED] misc_ is a root level object. Using absolute_url you are acquiring it into your Instance URL, which is not necessary (and will hamper off-server caching). Use dtml-SCRIPT_NAME; instead (which will give you the absolute url of the root object in all cases): img src="dtml-SCRIPT_URL;/misc_/myProduct/chooserIcon" border=0 I sugget using "dtml-BASE1;", since SCRIPT_NAME doesn't work well with virtual hosting. I don't see this would make a difference; Zope is passed the base URL at which it takes over the URL. A SiteAccess object may only influence parts of the URL that come _after_ this base. http://zopeintherooturl/foo, where foo is a Zope object, has SCRIPT_NAME='/', while http://zopeinasuburl/zope/foo, has SCRIPT_NAME='/zope/'. Zope may remove the foo from the URL because of some Virtual Host rule, SCRIPT_NAME will still be valid. Sorry, I'd have to agree with Evan on this one. I'm pretty sure I've had SiteAccess not play nicely wih SCRIPT_NAME whereas BASE1 works fine... cheers, Chris ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
