yup, just in case the ID is not generated when storing the Entity. ;-) otherwise the ID 'd be generated every time the data'd be stored.
2010/8/11 Caram <caram.jun...@gmail.com> > 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 > > > > ... > > > > mais » > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- ausencia de evidencia ≠ evidencia de ausencia http://culturainteractiva.blogspot.com/ -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. 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