Re: [google-appengine] How to filter a Query by Date
As you noted, the datastore only supports one inequality filter. In general, most people get around it by querying on one inequality, collecting all the matching results, and filtering on the other inequality within the application. Another way is to use IN queries: see this example SO answer: http://stackoverflow.com/questions/14939152/gae-datastore-filter-by-date-interval ok, thanks for the reply. it is very disappointing that theres only this ungly workarounds... -- You received this message because you are subscribed to the Google Groups Google App Engine group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine. For more options, visit https://groups.google.com/groups/opt_out.
[google-appengine] How to filter a Query by Date
Hello, I have an object with a startdate and a enddate. Now I would like to select all objects where a parameter is between the start- and enddate. But the datastore supports only one inequality filter per query (excepted on one field). So how i could implement a query to get the objects i want? I use JDO. *Example*: *Datastore*: Object 1: 20.01.2014 - 28.01.2014 Object 2: 17.01.2014 - 22.01.2014 *Querys*: Parameter: 21.01.2014 Result: Object 1, Object 2 Parameter: 27.01.2014 Result: Object 1 Parameter: 18.01.2014 Result: Object 2 Parameter: 02.03.2014 Result: Empty Have a nice day Benjamin -- You received this message because you are subscribed to the Google Groups Google App Engine group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine. For more options, visit https://groups.google.com/groups/opt_out.
Re: [google-appengine] How to filter a Query by Date
On Fri, Feb 21, 2014 at 6:20 AM, Ben Liet benl...@gmail.com wrote: I have an object with a startdate and a enddate. Now I would like to select all objects where a parameter is between the start- and enddate. But the datastore supports only one inequality filter per query (excepted on one field). So how i could implement a query to get the objects i want? As you noted, the datastore only supports one inequality filter. In general, most people get around it by querying on one inequality, collecting all the matching results, and filtering on the other inequality within the application. Another way is to use IN queries: see this example SO answer: http://stackoverflow.com/questions/14939152/gae-datastore-filter-by-date-interval - -Vinny P Technology Media Advisor Chicago, IL App Engine Code Samples: http://www.learntogoogleit.com -- You received this message because you are subscribed to the Google Groups Google App Engine group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine. For more options, visit https://groups.google.com/groups/opt_out.
