Upgrading Plone 2 to 5, a different approach(?)

1

Just want to share some info, in case it could be relevant for others:

  • I am looking into the possibility of upgrading a VERY old Plone site (2.5, but started on 2.0) that has been running 'unchanged since 2007
  • I do not want to 'touch anything', and since installing Python 2.4 failed I tried this approach:

  1. I made smart folders for the different content types I wanted to export, in the example below 'Book'. Note: the template could probably been simpler, but I used an existing:

      <tal:foldercontents 
                define="contentFilter    contentFilter|request/contentFilter|nothing;
                limit_display    limit_display|request/limit_display|nothing;
                more_url         more_url|request/more_url|string:folder_contents;
                contentsMethod   python:test(here.portal_type=='Topic', here.queryCatalog, here.getFolderContents);
                folderContents   folderContents|python:contentsMethod(contentFilter, batch=True);
                use_view_action  site_properties/typesUseViewActionInListings|python:();
                over_limit       python: limit_display and len(folderContents) > limit_display;
                folderContents   python: (over_limit and folderContents[:limit_display]) or folderContents;
                batch            folderContents">
                <tal:listing condition="folderContents">


                <div tal:repeat="item folderContents">
                    <tal:block tal:define="here item/getObject" tal:on-error="nothing">  

                   <div metal:use-macro="here/my_book_view/macros/main"/>

                </tal:block>
                </div>

        </tal:listing>
  </tal:foldercontents>
</div>

  2. I then made the macro for the different content types. In this case the 'Book'.

     <html xmlns="http://www.w3.org/1999/xhtml" lang="en-US"
 metal:use-macro="here/main_template/macros/master">

 <body>
     <div metal:fill-slot="main">
       <div metal:define-macro="main">
         <tal:book_liten>
         {
         """id""":   """<div tal:replace="here/id" />""", 
         """beskrivelse""": """<p tal:replace="here/description" />""",
         """richtext""": u"""<p tal:replace="here/richtext" />""",
         """priceGross""" : """<p tal:replace="here/priceGross" />""", 

         .... more fields here

         """image""" : """<p tal:replace="python:here.absolute_url()" />/image""", 
          },
         </tal:book_liten>
       </div>
     </div>
   </body>
 </html>

  3. I used the views on the smart folders (for example http:// mysite \ .com/smartfolder1/my_export_view

  4. This would give me a 'long list of items, which I copied into a script. In fact, I just added it to my profile (setuphandlers.py). After installing the add-on, the content is present. I had just one issue, a paragraph that ended with ", so I added a space after it.

  5. The script then looks like this

     def _create_content(portal):
     """Lets create the content"""

     kontent = [ {"id"="""xx""", 
                         "title" = """yy""", 
                         "richtext" =  u"""something""",
                         "image"  = """somepath"""",

                         .... rest of pasted content here.

                    

   }]

   for i in kontent:
       if not portal.get(i, False):

       book = api.content.create(
           type='book',
           container=portal,
           id=i['id'],
           title=i['title'],
           shortdescription = RichTextValue(i['shortDescription'], 'text/html', 'text/x-html-safe'),

           .... etc. 
       )

       book.image = url_load_image(i['image'], i['id'])


 def url_load_image(url, title):


     response = requests.get(url)
     img = Image.open(BytesIO(response.content))

     img.save('something.jpg')

     return NamedBlobImage(
         data=open('something.jpg', 'rb').read(),
         filename=title
     )

NOTE: I did not figure out how to 'read the image data directly from the old site (that is why I save it first), so if you use PNG or GIF images you might get an error.

1 Like
2 
     return NamedBlobImage(
         data=BytesIO(response.content).read(),
         filename=title
     )

?

3

Thanks, that works.

PS: The errors I got was because the images from 'not published content' is not readable, while the list I got from the view included those.

1 Like