AW: Creating ZMSGraphic Objects

"Dr. Frank Hoffmann" <[email protected]> Tue, 24 Jun 2008 13:39:16 +0200
Newsgroups	gmane.comp.cms.zms.devel
Message-ID	<42E661C2EF384B84A00A1EC48BAE9758@hal1>
Hello,
to show the detailed structure of the Zope object, this DTML snippet may
help. It iterates over the attributes of the generic Zope objects contained
by the ZMS Object (result -> appended screenshot).

%<-----------------------------
## SET CONTEXT PATH:
<dtml-with "content.e30.e11209">
<dtml-call f_standard_html_request>
<html>
<body>
<table border="1">
 <dtml-let l="objectValues()">
  <dtml-in l>
  <dtml-let ob=sequence-item>
  <dtml-in "operator_getattr(ob,'__dict__').keys()" sort
   ><dtml-let key=sequence-item
    ><tr><td valign="top" style="background-color:#eee"><dtml-var
key></td><td>
         <dtml-try>
         <dtml-var "ob[key]">
         <dtml-unless "operator_getattr(ob[key],'__dict__')==None">
            <br /><dtml-var "operator_getattr(ob[key],'__dict__')">
         </dtml-unless>
         <dtml-except>key error
         </dtml-try>
      &nbsp;</td
    ></tr>
   </dtml-let>
  </dtml-in>
  </dtml-let>
  </dtml-in>
 </dtml-let>
</table>
</body>
</html>

</dtml-with>
%<-----------------------------

The class definition of ZMSGraphic you will find in
../zms/zmsgraphic.py

More about the class MyBlob you will find in the Python module and how an
image is transformed into a blobfield (by createBlobField()) :
../zms/_blobfields.py


Best Regards
fh, moderator


-----Ursprüngliche Nachricht-----
Von: [email protected] [mailto:[email protected]]
Im Auftrag von Tobias Greitzke
Gesendet: Dienstag, 24. Juni 2008 11:47
An: [email protected]
Betreff: [zms-developers] Creating ZMSGraphic Objects

Dear ZMS-Developers,

I'm facing some difficulties generating a ZMSGraphic by dtml or python 
script. First thing is that I would like to crate a ZMSGraphic by using 
a Zope-Photo Object, second to zip-upload images and auto-create thumbnails.

1) So fare I managed to read the image information from the photo object 
but I can't figure out how to load it into the ZMSGraphic.

I tried to add the graphic with the following function while "ob" 
contains the photo-image file:

manage_addZMSGraphic({'id_prefix':'id','active':1,'img':ob},context.REQUEST)

I could find out that img needs something like a dictionary but I can't 
find out how it should look like and what the ZMSGraphic is doing with it.

2) right now zip-uploading images into the mediafolder creates only one 
image size. I tried to rewrite the onChangeObjEvt method of the 
ZMS-MediaFolder but I can't figure out how to enable the 
generate_preview_imghires or generate_preview_imgsuperres.
This is what I tried:

<dtml-call "REQUEST.set('img',manage_addZMSGraphic(
  {'id_prefix':'files'
  ,'active':1
  ,'generate_preview_imghires:int':1
  ,'generate_preview_imgsuperres:int':1
  ,'imgsuperres':ob
  },REQUEST))">


ZMS-Version: 2.10.5-23
Thanks
Tobias Greitzke
ZMSGraphic.png (image/png, 162.4 KB) - not displayed