But, in
http://code.google.com/intl/en/appengine/docs/python/tools/uploadingdata.html#Downloading_and_Uploading_All_Data,
he said:
"When data is downloaded, the entities are stored along with their
original keys. When the data is uploaded, the original keys are used.
If an entity exists in the datastore with the same key as an entity
being uploaded, the entity in the datastore is replaced.
You can use upload_data to replace the data in the app from which it
was dumped, or you can use it to upload the data to a different
application. Entities with numeric system IDs will be uploaded with
the same IDs, and reference properties will be preserved."
So, my ID of Login is Long, I understand that it should be updating
like he said above and not adding as is happening.
Am I right?
Thanks!
Caram.:
On 11 ago, 15:57, Ronmell Fuentes <ringe...@gmail.com> wrote:
> Hi, ok.
> what happens is the following.
>
> As you already know, in DataStore there's no "update" because when you
> insert a record, depending on the Primary Key you have set in your, all the
> new data just falls over the first records. This means, that if you are
> generating an ID every time an insert is done, this will keep until always.
> jeje. But if for example you set a primary Key based on an field of your
> entity, for example you set
> Primary Key(MyField); where MyField is a string name, this will create
> something like this.
> For MyField="helloworld1";
>
> MyEntity("helloworld1");
>
> For MyField="helloworld2";
>
> MyEntity("helloworld1");
>
> and so on...
>
> So that, the main point here is, when inserting a new record, and the value
> of the Primary Key is not set by yourself, this will automatically create a
> new record. All data will be inserted again and again.
>
> if you already have the ID=1;
> and you try to insert a new record with ID=1 and ID is the primary key, then
> the record won't be inserted again, but will be updated.
>
> As you can see, all depends on the way you create your Entities or Classes .
>
> Rgds.
>
> R. F.
>
> 2010/8/11 Caram <caram.jun...@gmail.com>
>
>
>
> > Ronmell,
>
> > These days I study and I succeed in download data from datastore
> > in .csv.
> > I understand that I can modifiy this .csv and upload it to make the
> > changes in my datastore. But, when I try to upload it, duplicate in my
> > datastore all entities I have. It changes the ID to name, I've tried
> > many things unsuccessfully, can you help me?
>
> > Here my commands/codes:
>
> > bulkloader.yaml:
>
> > ---------------------------------------------------------------------------
> > --------------
> > # Autogenerated bulkloader.yaml file.
> > # You must edit this file before using it. TODO: Remove this line when
> > done.
> > # At a minimum address the items marked with TODO:
> > # * Fill in connector and connector_options
> > # * Review the property_map.
> > # - Ensure the 'external_name' matches the name of your CSV column,
> > # XML tag, etc.
> > # - Check that __key__ property is what you want. Its value will
> > become
> > # the key name on import, and on export the value will be the Key
> > # object. If you would like automatic key generation on import
> > and
> > # omitting the key on export, you can remove the entire __key__
> > # property from the property map.
>
> > # If you have module(s) with your model classes, add them here. Also
> > # change the kind properties to model_class.
> > python_preamble:
> > - import: base64
> > - import: re
> > - import: google.appengine.ext.bulkload.transform
> > - import: google.appengine.ext.bulkload.bulkloader_wizard
> > - import: google.appengine.api.datastore
> > - import: google.appengine.api.users
>
> > transformers:
>
> > - kind: Login
> > connector: csv
>
> > property_map:
> > - property: __key__
> > external_name: ID
> > export_transform: transform.key_id_or_name_as_string
>
> > - property: password
> > external_name: password
>
> > - property: user
> > external_name: user
>
> > ---------------------------------------------------------------------------
> > ----------------------------------
>
> > For download:
> > appcfg.py download_data -e caram.jun...@gmail.com --
> > config_file=bulkloader.yaml --kind=Login --filename=teste.csv --
> > url=http://pac-web.appspot.com/remote_api
>
> > Result (teste.csv):
>
> > ---------------------------------------------------------------------------
> > -------------------------------
> > password,ID,user
> > swdw,1,User
> > CARACA,1001,User
> > CARACA2,2001,User
> > ,3001,
> > edsed,4001,User
> > edsed,4002,User43
> > edsed,5001,User43
> > edsed,6001,User47
>
> > ---------------------------------------------------------------------------
> > -------------------------------
>
> > For upload (result inhttps://appengine.google.com/datastore, kind
> > Login):
>
> > ---------------------------------------------------------------------------
> > -------------------------------
> > ID/Name password user
> > id=1 swdw User
> > id=1001 CARACA User
> > id=2001 CARACA2 User
> > id=3001 <null> <null>
> > id=4001 edsed User
> > id=4002 edsed User43
> > id=5001 edsed User43
> > id=6001 edsed User47
> > name=1 swdw User
> > name=1001 CARACA User
> > name=2001 CARACA2 User
> > name=3001
> > name=4001 edsed User
> > name=4002 edsed User43
> > name=5001 edsed User43
> > name=6001 edsed User47
>
> > ---------------------------------------------------------------------------
> > -------------------------------
>
> > Rgds!
> > Caram.:
>
> > On 5 ago, 16:30, Ronmell Fuentes <ringe...@gmail.com> wrote:
> > > jeje ok ok.
> > > In the doc related to python, there you can find information about how to
> > > write your Exporter/Loader classes.
>
> > > Happy Codding.
>
> > > Rgds.
>
> > > R. F.
>
> > > 2010/8/5 Caram <caram.jun...@gmail.com>
>
> > > > I would search about item 5 because I "traveled", understand
> > > > nothing... :)
>
> > > > Thanks!
>
> > > > On 5 ago, 15:45, Ronmell Fuentes <ringe...@gmail.com> wrote:
> > > > > Ok.
> > > > > 1. appcfg.py can be used whether your app is written in Java or
> > Python.
> > > > > 2. when they speak about "remote_api" is right, you need to write
> > some
> > > > > lines in your web.xml file to allow the connection remotely.
> > > > > 3. when it's mentioned
> > > > > com.google.apphosting.utils.remoteapi.RemoteApiServlet is the name
> > of
> > > > the
> > > > > servlet which answer the request of connection, so that, you have to
> > > > write
> > > > > the name of the servlet, and also have to map it to the URL where the
> > > > tool
> > > > > is redirected when trying to connect.
>
> > > > > 4. The app.yaml is a file which is written when developing an app
> > made
> > > > in
> > > > > python, so at this point it's useless.
>
> > > > > 5. If you are going to use a tool such as appcfg.py or bulkloader.py
> > you
> > > > > have to write some files in order to manage your data in datastore.
> > This
> > > > is
> > > > > very important since when using the dataStore we have schemaless, so
> > the
> > > > > tool doesn't know how to deal with data stored in datastore, thus you
> > > > have
> > > > > to write a file for loading/downloading the data. These files
> > contains
> > > > the
> > > > > classes called Exporter/Loader. In google docs for GAE there is
> > > > information
> > > > > about this issue.
>
> > > > > 6. Personally when I knew I had to deal with data stored in
> > DataStore
> > > > of
> > > > > my App, I decided to build my own tool for doing this. I took the
> > > > > Service-Rest way. This means that I have a Service (Rest type)
> > listening,
> > > > > running on my app so that I can connect remotely to this service and
> > tell
> > > > it
> > > > > to do pretty much whatever I want and what it was programmed for.
>
> > > > > There is an opensource product for this.http://www.restlet.org/
> > > > > this is the related documentation.
> > > >http://wiki.restlet.org/docs_2.0/13-restlet/21-restlet/318-restlet.html
>
> > > > > For me it works perfectly and it's not too difficult to understand
> > the
> > > > > concept.
>
> > > > > Hope this is helpful.
> > > > > Rgds
>
> > > > > R. F.
> > > > > any doubt I'm always willing to help.
>
> > > > > 2010/8/5 Caram <caram.jun...@gmail.com>
>
> > > > > > I'm confused!
>
> > > > > > I uploaded a Java app.
>
> > > > > > I installed Python 2.7 and GAE for Python to work with the remote
> > > > > > database.
>
> > > > > > I'm following this link:
>
> >http://code.google.com/intl/en/appengine/docs/python/tools/uploadingd.
> > > > ..
> > > > > > but I'm confused because this article is for Python, not for Java
> > app.
> > > > > > It have a tip in beginning:
>
> > > > > > "If you have a Java app, you can use the Python appcfg.py tool by
> > > > > > installing the Java version of the remote_api handler, which is
> > > > > > included with the Java runtime environment. The handler servlet
> > class
> > > > > > is com.google.apphosting.utils.remoteapi.RemoteApiServlet."
>
> > > > > > I'm very lost... In article mention archive "app.yaml" to alter but
> > I
> > > > > > don't know where it is...
>
> > > > > > Thanks.
>
> > > > > > On 5 ago, 14:09, Ronmell Fuentes <ringe...@gmail.com> wrote:
> > > > > > > you are Welcome.
>
> > > > > > > R. F
>
> > > > > > > 2010/8/5 Caram <caram.jun...@gmail.com>
>
> > > > > > > > Thank you!
>
> > > > > > > > On 5 ago, 13:21, Ronmell Fuentes <ringe...@gmail.com> wrote:
> > > > > > > > > Hi, Nup.
> > > > > > > > > all are comand-console tools.
>
> > > > > > > > > but you could build your own app which could consume some
> > > > services in
> > > > > > > > your
> > > > > > > > > data store and that'd be with GUI and all features you want.
> > :D
>
> > > > > > > > > Rgds.
>
> > > > > > > > > R. F
>
> > > > > > > > > 2010/8/5 Caram <caram.jun...@gmail.com>
>
> > > > > > > > > > Hi Ronmell!
>
> > > > > > > > > > Nice information, I would take a look.
> > > > > > > > > > Is there any GUI tool?
>
> > > > > > > > > > Rgds,
> > > > > > > > > > Caram.:
>
> > > > > > > > > > On 5 ago, 01:42, Ronmell Fuentes <ringe...@gmail.com>
> > wrote:
> > > > > > > > > > > Hi,
> > > > > > > > > > > for sure.
>
> > > > > > > > > > > you can use tools writen in python such as: appcfg.py or
> > > > > > > > bulkloader.py,
> > > > > > > > > > they
> > > > > > > > > > > work perfectly, are useful and easy to use.
>
> > > > > > > > > > > Rgds.
> > > > > > > > > > > Ronmell F.
>
> > > > > > > > > > > 2010/8/4 Caram <caram.jun...@gmail.com>
>
> > > > > > > > > > > > Hello!
>
> > > > > > > > > > > > Can we access the datastore of an applicattion out of
> > the
> > > > > > Google
> > > > > > > > site
> > > > > > > > > > > > (appengine.google.com/datastore/explorer) ?
>
> > > > > > > > > > > > Thanks!
> > > > > > > > > > > > Caram.:
>
> > > > > > > > > > > > --
> > > > > > > > > > > > You received this message because you are subscribed to
> > the
> > > > > > Google
> > > > > > > > > > Groups
> > > > > > > > > > > > "Google App Engine for Java" group.
> > > > > > > > > > > > To
>
> ...
>
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