[appengine-java] Re: Local datastore is empty after migrating to 1.3.1
Same problem On Feb 23, 10:21 pm, Scott Hernandez scotthernan...@gmail.com wrote: I got a read error when I tried running with my existing (v1.3.0) data-store file; I created a new one (by renaming the old one) and restarting. I suspect the internal format is different and the old format cannot be read. Whether this is by design or a bug is another question. On Tue, Feb 23, 2010 at 10:26 AM, David turntwo...@gmail.com wrote: I just upgraded to1.3.1and also hit this issue. I hope someone from the GAE team will soon comment on this behavior. I'm also curious how common a problem this is. Have other people upgraded to1.3.1and maintained their local data store? On Feb 17, 3:06 pm, mcrady mcr...@gmail.com wrote: Same here. If I switch back to 1.3.0 the local data is still there. Any workarounds to get to1.3.1with the local data? On Feb 13, 10:45 am, Brian bwa...@gmail.com wrote: My remotedatastorekept the data, mylocalone was wiped. Pretty easy to make a script to load a DB with test data, not really a good idea to rely on yourlocaldatastore... On Feb 12, 6:32 pm, mably fm2...@mably.com wrote: Same thing happened to me. Got an emptylocaldatastoreafterupdating to1.3.1. Hopefully I didn't have much data in it. But it might not be the case for everybody. On 12 fév, 09:35, Al Murauski a.murau...@gmail.com wrote: The Development Console tells Thedatastoreisemptyafterupdating to1.3.1. Any ideas why? I need mylocaldata back. The local_db file is not emoty and contain sthe data it contained before1.3.1migration.- Hide quoted text - - Show quoted text - -- 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. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Querying by Category class
I have changed to
query.setFilter(tags.contains(' + aTagValue + '));
and it still works!
It took me a while to get into this concept, that although it's a
filter clause it's written in java object style and not SQL style, I
mean:
NOT tags contains tagParam BUT tags.contains(tagParam) as you wrote
Thanks
On Jan 4, 12:58 pm, datanucleus andy_jeffer...@yahoo.com wrote:
I have tried the simplest approach and it works:
query.setFilter(tags == ' + aTagValue + ' );
It may work, but is actually invalid JDOQL and you should always use
valid JDOQL syntax like
tags.contains(tagParam)
and your current query would fail in future releases.
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[appengine-java] Re: Querying by Category class
I have tried the simplest approach and it works: query.setFilter(tags == ' + aTagValue + ' ); On Jan 3, 5:05 pm, Itzik Yatom itzik...@hotmail.com wrote: I consider to use the built in Category class for implementing tags for one of my datastore classes. Something like: . import com.google.appengine.api.datastore.Category; . @Persistent protectedListCategory tags; . My question is how do I filter objects by a tag value, for example I want to get all objects that have a 'pollution' tag. Actually, there are here two questions: 1. How to query by fields that are lists (or collections)? 2. How to use Category class in queries ? Thanks -- 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. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Querying by Category class
I consider to use the built in Category class for implementing tags for one of my datastore classes. Something like: . import com.google.appengine.api.datastore.Category; . @Persistent protected ListCategory tags; . My question is how do I filter objects by a tag value, for example I want to get all objects that have a 'pollution' tag. Actually, there are here two questions: 1. How to query by fields that are lists (or collections)? 2. How to use Category class in queries ? Thanks -- 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. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Gradual move from XAMPP to app engine
Hi all I have been developing web sites using GWT at the client and Apache web server with PHP and My SQL DB. The server side is responsible for data access, mail and some other server jobs These days I am considering using Google App engine as my server. I don't want to through all the code I have written in PHP and develop everything from scratch. My question is there a way to combine in a web site HTTP calls to the Apache server and to the app engine, both from a browser client that is developed with GWT. Thanks --~--~-~--~~~---~--~~ 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-java@googlegroups.com To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en -~--~~~~--~~--~--~---
