Vivek, Andreas, very interesting design! Let's see how this works out in the longer run - if it proves useful in other scenarios, maybe this is a good pattern to propagate to others, and to pull down into some Java library in order to be usable from other stacks, too!
Cheers, /peter neubauer GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://startupbootcamp.org/ - Öresund - Innovation happens HERE. http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. On Sun, Oct 2, 2011 at 9:12 AM, Vivek Prahlad <vivek.prah...@gmail.com> wrote: > Hi Peter, > > Yes, the multitenancy support only works via rails at the moment. > > It basically involves a few things: > > 1. The ability to change reference nodes for entities. If the reference node > is set to a tenant (for example, a Customer or an Organization object > instance), then two things happen: > > All traversals are scoped to happen under the tenant node. Thus Bill.all, > for example, will always return the collection of bills attached to the > current reference node. > Lucene queries are scoped to an index that's created for a particular > tenant. For this to work, the tenant node needs to have a unique 'name' > property. > > The api to make this happen is Neo4j.threadlocal_ref_node = <your tenant > node instance>. The framework automatically does traversals and lucene index > lookups based on the current ref node. In the rails world, one place to set > the threadlocal ref node would be in, say, a :before_filter in your > ApplicationController > > 2. The ability to have entities that are shared across all tenants. This can > be done like this: > > class Currency > property :name > ref_node { Neo4j.default_ref_node } > end > This ensures that all currency instances are attached to the default > reference node. Currency.all / find etc. will always return the same results > regardless of what the current threadlocal ref node is. This allows us to > create shared reference data that is common across all tenants. > > Cheers, > Vivek > > On Sun, Oct 2, 2011 at 12:16 PM, Peter Neubauer > <peter.neuba...@neotechnology.com> wrote: >> >> Very cool Andres, Vivek and Deepak, >> The multi tenancy does only work from Rails? >> >> /Peter >> >> On Saturday, October 1, 2011, Andreas Ronge <andreas.ro...@gmail.com> >> wrote: >> > Hi >> > >> > I just released 1.2.3. >> > See the documentation for the new cool feature - multitenancy - >> > http://neo4j.rubyforge.org/guides/configuration.html#multitenancy >> > >> > CHANGELOG >> > * Multitenancy support by namespaced-indices & changeable reference >> > node (Vivek Prahlad, pull 41) >> > * Added a Neo4j::Rails::Model#columns which returns all defined >> > properties [#186] >> > * Fixed validation associated entities, parent model should be invalid >> > if its nested model(s) is invalid (Vivek Prahlad) >> > * Fixed property validation to read value before conversion as per >> > active model conventions (Deepak N) >> > * Fixed property_before_type_cast for loaded models (Deepak N) >> > * Better support for nested models via ActionView field_for [#185] >> > * BUG: fix for null pointer issue after delete_all on >> > Neo4j::Rails::Model#has_n relationships (Vivek Prahlad) >> > * BUG: init_on_create was not called when creating a new relationship >> > via the << operator [#183] >> > >> > Thanks again Deepak and Vivek ! >> > >> > -- >> > You received this message because you are subscribed to the Google >> > Groups "neo4jrb" group. >> > To post to this group, send email to neo4...@googlegroups.com. >> > To unsubscribe from this group, send email to >> > neo4jrb+unsubscr...@googlegroups.com. >> > For more options, visit this group at >> > http://groups.google.com/group/neo4jrb?hl=en. >> > >> > >> >> -- >> >> Cheers, >> >> /peter neubauer >> >> GTalk: neubauer.peter >> Skype peter.neubauer >> Phone +46 704 106975 >> LinkedIn http://www.linkedin.com/in/neubauer >> Twitter http://twitter.com/peterneubauer >> >> http://www.neo4j.org - Your high performance graph database. >> http://startupbootcamp.org/ - Öresund - Innovation happens HERE. >> http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "neo4jrb" group. >> To post to this group, send email to neo4...@googlegroups.com. >> To unsubscribe from this group, send email to >> neo4jrb+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/neo4jrb?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "neo4jrb" group. > To post to this group, send email to neo4...@googlegroups.com. > To unsubscribe from this group, send email to > neo4jrb+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/neo4jrb?hl=en. > _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
