 | tman | 要回复&＃xff0c;请加入论坛 |
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I have a test case that uploads a photo by calling
fetchEntryByInsertingEntry. It eventually returns an entry of
GDataEntryPhoto type which, I assume, is the latest version of entry
for uploaded photo. Later on, the test case attempts to delete this
uploaded photo by calling deleteEntry on this entry of GDataEntryPhoto
type. But deleteEntry call returns 412 status code (data mismatches).
Exact errors I am getting are below.
2012-03-06 20:24:00.621 XXXXXX[23164:1a603] -[GDataServiceBase
objectFetcher:failedWithData:error:] [Line 1059]
serviceBase:
objectFetcher:GTMHTTPFetcher 0x14bccc00 (https://photos.googleapis.com/
data/entry/api/user/XXXXXXXXX/albumid/5716726739441009857/photoid/
5717005949210126098?authkey&＃61;Gv1sRgCNeWsIj6usC8jgE) failedWithStatus:
412 data:Mismatch: etags &＃61; ["YD0qeyI."], version &＃61; [2]
I am not sure what this error means. I would expect that entry object
returned by fetchEntryByInsertingEntry would be the most recent entry
from servers and wouldn&＃39;t need to be refetched to get the latest
version.
Is there any way to work around this error ?
fetchEntryByInsertingEntry. It eventually returns an entry of
GDataEntryPhoto type which, I assume, is the latest version of entry
for uploaded photo. Later on, the test case attempts to delete this
uploaded photo by calling deleteEntry on this entry of GDataEntryPhoto
type. But deleteEntry call returns 412 status code (data mismatches).
Exact errors I am getting are below.
2012-03-06 20:24:00.621 XXXXXX[23164:1a603] -[GDataServiceBase
objectFetcher:failedWithData:error:] [Line 1059]
serviceBase:
objectFetcher:GTMHTTPFetcher 0x14bccc00 (https://photos.googleapis.com/
data/entry/api/user/XXXXXXXXX/albumid/5716726739441009857/photoid/
5717005949210126098?authkey&＃61;Gv1sRgCNeWsIj6usC8jgE) failedWithStatus:
412 data:Mismatch: etags &＃61; ["YD0qeyI."], version &＃61; [2]
I am not sure what this error means. I would expect that entry object
returned by fetchEntryByInsertingEntry would be the most recent entry
from servers and wouldn&＃39;t need to be refetched to get the latest
version.
Is there any way to work around this error ?
| | Greg Robbins | 要回复&＃xff0c;请加入论坛 |
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The ETag field of an entry is a hash string indicating the version of the resource on the server. It sounds like the server has changed the photo resource after it was uploaded.
ETags are described at http://code.google.com/apis/gdata/docs/2.0/reference.html#ResourceVersioning
Try avoiding the ETag check, either by setting the entry&＃39;s ETag value to nil:
[entry setETag:nil];
or by replacing deleteEntry: with deleteResourceURL:ETag: as in:
[service deleteResourceURL:[[entry editLink] URL]
ETag:kGDataETagWildcard]
delegate:...
| | tman | 要回复&＃xff0c;请加入论坛 |
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Thanks for your quick reply, Greg! Your suggestion works great.
On Mar 6, 9:45 pm, Greg Robbins wrote:
> The ETag field of an entry is a hash string indicating the version of the
> resource on the server. It sounds like the server has changed the photo
> resource after it was uploaded.
> > ETags are described athttp://code.google.com/apis/gdata/docs/2.0/reference.html#ResourceVer...
On Mar 6, 9:45 pm, Greg Robbins
> The ETag field of an entry is a hash string indicating the version of the
> resource on the server. It sounds like the server has changed the photo
> resource after it was uploaded.
>
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