]> http://www.kai-mai.com/tags/mongodb Nodes containing the tag mongodb en http://www.kai-mai.com/node/189 <p> MongoDB has a <a href="http://www.mongodb.org/display/DOCS/Geospatial+Indexing">geospatial indexing</a> feature that allows nearby search. I was trying to get some sample codes running. But the example codes doesn't work as 'ensureIndex' doesn't seem to exist. <a href="http://codesnotdead.blogspot.com/2010/03/mongodb-geospatial-indexing-examples-in.html">The Ruby sample codes</a> don't work either as db.create_index's parameters seem to have changed. </p> <p> Peeking into <a href="http://github.com/mongodb/mongo-ruby-driver/blob/367f9b32cca017e5f0e9fabdf2101f34918e5f2e/test/collection_test.rb">the geospatial index test codes</a> on the create_index method, it turned out that the first argument for create_index must be array of array for geospatial index(check out the documentation for <a href="http://github.com/mongodb/mongo-ruby-driver/blob/master/lib/mongo/collection.rb">the create_index method</a>). </p> <p class="awTags_TagLinks">Tags: <a href="tags/396">mongodb</a> <a href="tags/397">database</a> <a href="tags/398">geo</a> </p> mongodb database geo Sat, 10 Apr 2010 17:29:12 -0700