Hi Adam,
Maybe I'm confusing the options of store data on the Google Infrastructure.
I want store the profile photos to my users in my GAE app, and finding way
to do this I found Google Cloud Storage, using the library cloudstorage for
python but also saw blobstore and gcloud and I'm a bit confusing.
When I loaded a photo with gcs.open I can see this in the dev server in the
section BlobStore Viewer, because of this I thought that blobstore and GCS
is more or less the same thing.
When, when I make this:
gcs_file = gcs.open(filename, 'w', ...)
gcs_file.write(datos)
gcs_file.close()
After I can see in Blobstore Viewer in dev_server web console a new file,
and If I use this code:
blobstore_filename = '/gs' + filename
key = blobstore.create_gs_key(blobstore_filename)
return get_serving_url(key)
I can get the url where the image is stored to use to show it wherever i
want.
For this reason, I thought that was easy way to obtain from url that I have
the way to erase que photo or the file that this url refers.
Thanks you very much for all your help Adam.
El domingo, 17 de abril de 2016, 0:56:34 (UTC+2), Adam (Cloud Platform
Support) escribió:
>
> First off, Google Cloud Storage is not Blobstore. You can create a key for
> use with Blobstore with blobstore.create_gs_key(), but you should only do
> this if you really need to use Blobstore API for something (eg. with the
> Images API). You should not treat Blobstore and GCS as the same thing or
> intermingle them needlessly.
>
> So adding to that, GCS doesn't understand or care about blob keys
> <https://cloud.google.com/appengine/docs/python/googlecloudstorageclient/functions>,
>
> so gcs.delete(key) won't work. Objects that are uploaded to Blobstore don't
> necessarily exist in GCS, so there isn't a way to get a GCS file name from
> a blob key*. You need to use the GCS file path directly, eg.
> gcs.delete('/mybucket/path/to/myobject').
>
> So to avoid this type of problem you should always use 'cloudstorage' and
> deal with objects in terms of GCS files, using blobstore.create_gs_key()
> only when you need to use some function that needs the Blobstore API. You
> can make Blobstore talk to GCS, but not the other way around.
>
> ** The filename you get from BlobInfo
> <https://cloud.google.com/appengine/docs/python/refdocs/google.appengine.ext.blobstore.blobstore#google.appengine.ext.blobstore.blobstore.BlobInfo>
>
> is the filename from the user's machine when they uploaded the blob, not
> the filename in GCS.*
>
> On Saturday, April 16, 2016 at 5:22:07 PM UTC-4, Juan Antonio Fernández
> Sánchez wrote:
>>
>> I'm saving images in cloudstore (blobstore) using 'cloudstorage' library
>> in python.
>>
>> Well, this images are the image profile from users and I get the url
>> from blobstore to save this with the rest of data of user.
>> And now I' m trying develop the way to erase this files using the same
>> url that I have saved in the data block of users, but I dont find a simple
>> way to do this with the 'cloudstorage' library.
>>
>> I could save the filename of the photos of users in DB togheter to url to
>> access faster, but I prefer know how I can could make this.
>>
>> Thanks you so much for help.
>>
>> Code example that I want more o less:
>>
>> def DeleteFile(self, url):
>> key = keyFromUrl(url)
>> gcs.delete(key)
>>
>
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