chapter 6

Author: Karl Seguin

app/controllers/Meetups.java

@@ -60,8 +60,8 @@ public static void findRecent(int page) {
     renderJSON(Recent.find(page));
   }
 
-  public static void find() {
-    renderText("this is for later");
+  public static void find(float x, float y) {
+    renderJSON(Meetup.find(x, y));
   }
 
   @Util

app/jobs/Bootstrap.java

@@ -1,11 +1,14 @@
 package jobs;
 
 import play.jobs.*; 
+import com.mongodb.*;
 import play.modules.morphia.MorphiaPlugin;
 
 @OnApplicationStart
 public class Bootstrap extends Job {  
   public void doJob() {
     MorphiaPlugin.ds().ensureCaps();
+    DBObject object = BasicDBObjectBuilder.start().add("coordinates", "2d").add("date", 1).get();
+    MorphiaPlugin.ds().getCollection(models.Meetup.class).ensureIndex(object);
   }
 }

app/models/Meetup.java

@@ -5,6 +5,7 @@
 import play.data.validation.*;
 import org.bson.types.ObjectId;
 import play.modules.morphia.Model;
+import com.google.code.morphia.query.Query;
 import com.google.code.morphia.annotations.*;
 
 @Entity(value="meetups", noClassnameStored=true)
@@ -31,14 +32,19 @@ public class Meetup extends Model {
   public String description;
 
   @Required
-  public ObjectId user;
+  public String user;
 
   @Required @ExactListSize(value=2, message="Should have 2 values")
   public List<Float> coordinates;
 
   @MaxListSize(value=5, message="Can't have more than 5") @MaxListItemSize(value=15, message="A tag should be less than 15 characters")
   public Set<String> tags;
 
+  public static List<Meetup> find(float x, float y) {
+	  Query<Meetup> query = ds().createQuery(Meetup.class).field("coordinates").near(x, y).field("date").greaterThanOrEq(new Date()).limit(200);
+	  return query.asList();
+  }
+
   public static PagedResult findUpcoming(int page) {
     int limit = 5;
     int offset = (page - 1) * limit;

public/javascripts/views/viewHome.js

@@ -36,9 +36,8 @@ $(document).ready(function() {
     $.get('/meetups/find', {'x': center.lng(), 'y': center.lat(), 'tags': tags}, gotMapMeetups, 'json');
   }
 
-  function gotMapMeetups(r) {
+  function gotMapMeetups(meetups) {
     clearExistingMarkers();
-    var meetups = r.models;
     for(var i = 0; i < meetups.length; ++i) {
       var meetup = meetups[i];
       var point = new google.maps.LatLng(meetup.coordinates[1], meetup.coordinates[0])