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Posted to dev@abdera.apache.org by M Harris <md...@yahoo.com> on 2008/05/03 01:56:36 UTC

General Question about IDs

This is not necessarily about Abdera, but about the Atom Publishing Protocol in general regarding entry Ids.  I know there are some people on the mailing list who have developed their sites using Abdera and Atom.  Are you storing the Entry Ids in a database or other structure?  I was wondering how exactly to handle editing a resource.

I guess I am wondering how to ensure that the link during an edit of a resource is infact that Entry itself the client is trying to edit.

Taken from an article online just for reference:

               
PUT /blog/entries/1 HTTP/1.1
Host: example.org
Content-Type: application/atom+xml; charset=utf-8
Content-Length: nnnn
If-Match: "/blog/entries/1?1"
If-Unmodified-Since: Sat, 12 Aug 2006 13:40:03 GMT

<?xml version="1.0" ?>
<entry xmlns="http://www.w3.org/2005/Atom" >
  <id>tag:example.org,2006:/blog/entries/1</id>
  <title>Atom-Powered Robots Run Crazy</title>
  <link href="http://example.org/2003/12/13/atom03"/>
  <link rel="edit" href="http://example.org/blog/entries/1" />
  <updated>2006-08-12T13:40:03Z</updated>
  <author><name>John</name></author>
  <summary>Some different text.</summary>
</entry>



How should it know that 

/blog/entries/1
 and the entry 


<id>tag:example.org,2006:/blog/entries/1</id>
 
Mean the same? In this case the Id happens to be the URL of the entry but from what I have read the id does not have to be any part of the URL.  If someone were to do a PUT to the same URL but with this ID (2007 instead of 2008)

<id>tag:example.org,2007:/blog/entries/1</id>
 Does it overwrite the id?  



       
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Re: General Question about IDs

Posted by James M Snell <ja...@gmail.com>.

M Harris wrote:
> I just answered my own question.  The Ids can't be changed by the user (right?) and I think it would be best to do a GET first and then make sure the entry Ids match before pursuing.
> 

Right.

- James

> M Harris <md...@yahoo.com> wrote: This is not necessarily about Abdera, but about the Atom Publishing Protocol in general regarding entry Ids.  I know there are some people on the mailing list who have developed their sites using Abdera and Atom.  Are you storing the Entry Ids in a database or other structure?  I was wondering how exactly to handle editing a resource.
> 
> I guess I am wondering how to ensure that the link during an edit of a resource is infact that Entry itself the client is trying to edit.
> 
> Taken from an article online just for reference:
> 
>                
> PUT /blog/entries/1 HTTP/1.1
> Host: example.org
> Content-Type: application/atom+xml; charset=utf-8
> Content-Length: nnnn
> If-Match: "/blog/entries/1?1"
> If-Unmodified-Since: Sat, 12 Aug 2006 13:40:03 GMT
> 
> 
> 
>   tag:example.org,2006:/blog/entries/1
> Atom-Powered Robots Run Crazy  
>   
> 
>   
> 
>   2006-08-12T13:40:03Z
>   John
>   Some different text.
> 
> 
> 
> 
> How should it know that 
> 
> /blog/entries/1
>  and the entry 
> 
> 
> tag:example.org,2006:/blog/entries/1
>  
> Mean the same? In this case the Id happens to be the URL of the entry but from what I have read the id does not have to be any part of the URL.  If someone were to do a PUT to the same URL but with this ID (2007 instead of 2008)
> 
> tag:example.org,2007:/blog/entries/1
>  Does it overwrite the id?  
> 
> 
> 
>        
> ---------------------------------
> Be a better friend, newshound, and know-it-all with Yahoo! Mobile.  Try it now.
> 
>        
> ---------------------------------
> Be a better friend, newshound, and know-it-all with Yahoo! Mobile.  Try it now.

Re: General Question about IDs

Posted by M Harris <md...@yahoo.com>.
I just answered my own question.  The Ids can't be changed by the user (right?) and I think it would be best to do a GET first and then make sure the entry Ids match before pursuing.

M Harris <md...@yahoo.com> wrote: This is not necessarily about Abdera, but about the Atom Publishing Protocol in general regarding entry Ids.  I know there are some people on the mailing list who have developed their sites using Abdera and Atom.  Are you storing the Entry Ids in a database or other structure?  I was wondering how exactly to handle editing a resource.

I guess I am wondering how to ensure that the link during an edit of a resource is infact that Entry itself the client is trying to edit.

Taken from an article online just for reference:

               
PUT /blog/entries/1 HTTP/1.1
Host: example.org
Content-Type: application/atom+xml; charset=utf-8
Content-Length: nnnn
If-Match: "/blog/entries/1?1"
If-Unmodified-Since: Sat, 12 Aug 2006 13:40:03 GMT



  tag:example.org,2006:/blog/entries/1
Atom-Powered Robots Run Crazy  
  

  

  2006-08-12T13:40:03Z
  John
  Some different text.




How should it know that 

/blog/entries/1
 and the entry 


tag:example.org,2006:/blog/entries/1
 
Mean the same? In this case the Id happens to be the URL of the entry but from what I have read the id does not have to be any part of the URL.  If someone were to do a PUT to the same URL but with this ID (2007 instead of 2008)

tag:example.org,2007:/blog/entries/1
 Does it overwrite the id?  



       
---------------------------------
Be a better friend, newshound, and know-it-all with Yahoo! Mobile.  Try it now.

       
---------------------------------
Be a better friend, newshound, and know-it-all with Yahoo! Mobile.  Try it now.