First cut of application on PlayFramework.

README

@@ -2,3 +2,22 @@ This is your new Play 2.0 application
 =====================================
 
 This file will be packaged with your application, when using `play dist`.
+
+
+Credits & Licence List
+======================
+
+http://loopj.com/jquery-tokeninput/          => MIT Licence 
+http://code.google.com/p/jquery-geolocation/ => MIT Licence
+
+
+Yahoo YQL to get Geography Bounding Box locations. e.g.
+http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20geo.places%20where%20text%3D%22Australia%22&diagnostics=true
+
+PostGIS Geometry Information:
+http://workshops.opengeo.org/postgis-intro/geography.html
+
+Country Border Information:
+http://www.gelib.com/world-borders.htm
+
+http://gis.stackexchange.com/questions/11567/spatial-clustering-with-postgis

app/Global.java

@@ -0,0 +1,120 @@
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+import models.Country;
+import play.Application;
+import play.GlobalSettings;
+import play.Logger;
+import play.Play;
+import play.db.DB;
+
+import com.avaje.ebean.Ebean;
+
+public class Global extends GlobalSettings {
+
+	public void onStart(Application app) {
+
+		Logger.info("Application has started");
+
+		/*
+		 * Turn on SQL logging in the development environment.
+		 */
+		if (Play.isDev()) {
+			Ebean.getServer(null).getAdminLogging().setDebugGeneratedSql(true);
+		}
+
+		/*
+		 * Since we cannot insert initial data using evolutions & we have to
+		 * work around some STORED PROCEDURE definition issues (see evolution
+		 * 1.sql).
+		 * 
+		 * We define an InitialData insert routine that sets up the remainder of
+		 * our database on initialization.
+		 */
+		InitialData.checkAndDoInitialization(app);
+
+	}
+
+	public void onStop(Application app) {
+		Logger.info("Application shutdown...");
+	}
+
+	static class InitialData {
+
+		public static void checkAndDoInitialization(Application app) {
+
+			Logger.info("Checking Database...");
+
+			/*
+			 * No countries means our database is not yet initialised
+			 */
+			if (Ebean.find(Country.class).findRowCount() == 0) {
+
+				Logger.info("Not Initialised. Now Initializing Database...");
+
+				/*
+				 * We initialise stored procedures and data here.
+				 * 
+				 * This is because Play Evolutions currently has a bug that
+				 * prevents us from declaring our stored procedures in them.
+				 * 
+				 * See:
+				 * https://play.lighthouseapp.com/projects/82401/tickets/212
+				 * -evolutions-break-on-semicolons
+				 */
+
+				Connection conn = DB.getConnection();
+				try {
+					Statement stmt = conn.createStatement();
+
+					/*
+					 * Stored procedure workaround.
+					 */
+
+					stmt.execute("CREATE OR REPLACE FUNCTION update_point_from_lat_lng()"
+							+ " RETURNS TRIGGER AS $$"
+							+ " BEGIN"
+							+ "   NEW.point = ST_GeogFromText('SRID=4326;Point(' || CAST(NEW.longitude AS DECIMAL(15,6) ) || ' ' || CAST(NEW.latitude AS DECIMAL(15,6) ) || ')');"
+							+ "   RETURN NEW;"
+							+ " END;"
+							+ "$$ language 'plpgsql';");
+
+					stmt.execute("DROP TRIGGER IF EXISTS update_geotags_point ON geotags;");
+					stmt.execute("CREATE TRIGGER update_geotags_point BEFORE INSERT OR UPDATE"
+							+ " ON geotags FOR EACH ROW EXECUTE PROCEDURE"
+							+ " update_point_from_lat_lng();");
+
+					/*
+					 * Insert required data
+					 */
+					BufferedReader in = new BufferedReader(new FileReader("conf/initial-data.sql"));
+					conn.setAutoCommit(false); /* Turn off auto commit so the below are done as one transaction */
+					String line;
+					while((line = in.readLine()) != null) {
+						Logger.info(line);
+						stmt.executeUpdate(line);
+					}
+					in.close();
+					conn.commit();
+
+					Logger.info("Database is initialized.");
+
+				} catch (SQLException e) {
+					e.printStackTrace();
+				}
+				catch (IOException e) {
+					e.printStackTrace();
+				}
+			}
+
+			else {
+				Logger.info("Database is initialized.");
+			}
+		}
+	}
+
+}

app/controllers/Application.java

@@ -1,14 +1,35 @@
 package controllers;
 
+import java.util.Arrays;
+import java.util.Date;
+import java.util.Set;
+
+import models.GeoTag;
+import models.Tag;
+import models.Country;
+import models.User;
+import play.data.Form;
+import play.data.validation.Constraints.Pattern;
+import play.data.validation.Constraints.Required;
+import play.db.ebean.Transactional;
+import play.mvc.Controller;
+import play.mvc.Result;
+
+import com.avaje.ebean.Ebean;
+import com.avaje.ebean.SqlQuery;
+
 import play.*;
 import play.mvc.*;
-
 import views.html.*;
 
 public class Application extends Controller {
-
-  public static Result index() {
-    return ok(index.render("Your new application is ready."));
-  }
-
+
+	public static Result index() {
+		return ok(index.render());
+	}
+
+	public static Result about() {
+		return ok(about.render());
+	}
+
 }

app/controllers/Countries.java

@@ -0,0 +1,17 @@
+package controllers;
+
+import models.Country;
+import java.util.List;
+import play.*;
+import play.mvc.*;
+import views.html.*;
+import static play.libs.Json.toJson;
+
+public class Countries extends Controller {
+
+  public static Result tags(String query) {
+	  List<Country> tags = Country.find.where().ilike("name", "%" + query + "%").findList();
+	  return ok(toJson(tags));
+  }
+
+}

app/controllers/Geotag.java

@@ -0,0 +1,116 @@
+package controllers;
+
+import java.util.Arrays;
+import java.util.Date;
+import java.util.Set;
+
+import models.Country;
+import models.GeoTag;
+import models.Tag;
+import models.User;
+import play.api.libs.json.JsValue;
+import play.api.libs.json.Json;
+import play.data.Form;
+import play.data.validation.Constraints.Pattern;
+import play.data.validation.Constraints.Required;
+import play.db.ebean.Transactional;
+import play.mvc.Controller;
+import play.mvc.Result;
+
+import play.*;
+import play.mvc.*;
+import views.html.*;
+
+
+public class Geotag extends Controller {
+
+	public static class TagIn {
+
+		/*
+		 * Enterprise ID as submitted by user
+		 */
+		@Required
+		public String enterprise_id;
+
+		/*
+		 * Latitude,Longitude string
+		 */
+		@Required
+		@Pattern(value = "[0-9.-]+,[0-9.-]+", message = "A valid location (Lat/Long) is required")
+		public String location;
+
+		/*
+		 * CSV field of tag_id
+		 */
+		@Required
+		@Pattern(value = "[0-9,]+", message = "A valid set of tags must be supplied")
+		public String tags;
+
+		public String newtags;
+
+		public Set<Tag> getTagObjects() {
+			return Tag.find.where().idIn(Arrays.asList(this.tags.split(",")))
+					.findSet();
+		}
+
+		public double getLatitude() {
+			return Double.parseDouble(location.split(",")[0]);
+		}
+
+		public double getLongitude() {
+			return Double.parseDouble(location.split(",")[1]);
+		}
+
+	}
+
+	final static Form<TagIn> tagInForm = form(TagIn.class);
+
+	public static Result tagIn() {
+		return ok(tagin.render(tagInForm));
+
+	}
+
+	@Transactional
+	public static Result doTagIn() {
+
+		Form<TagIn> submittedForm = tagInForm.bindFromRequest();
+		if (submittedForm.hasErrors()) {
+			return badRequest(tagin.render(submittedForm));
+		} else {
+
+			User user = User.find.where()
+					.eq("enterprise_id", submittedForm.get().enterprise_id)
+					.findUnique();
+			if (user == null) {
+				user = new User();
+				user.enterprise_id = submittedForm.get().enterprise_id;
+				user.save();
+			}	
+
+			GeoTag gt = new GeoTag();
+			gt.tags = submittedForm.get().getTagObjects();
+			gt.user = user;
+			gt.latitude = submittedForm.get().getLatitude();
+			gt.longitude = submittedForm.get().getLongitude();
+			gt.date_time = new Date();
+
+			/*
+			 * An optimisation -- resolve the country @ tag time.
+			 */
+			Country country = Country.findCountryByLatLng(gt.latitude, gt.longitude).findUnique();
+			if(country != null) {
+				gt.country = country;
+			}
+
+			/*
+			 * Ebean.save() does not work well with ManyToMany associations, so
+			 * in addition to .save(), we also call
+			 * .saveManyToManyAssociations()
+			 */
+			gt.save();
+			gt.saveManyToManyAssociations("tags");
+
+			return ok(tagin.render(submittedForm));
+		}
+	}
+}

app/controllers/Map.java

@@ -0,0 +1,13 @@
+package controllers;
+
+import play.*;
+import play.mvc.*;
+import views.html.*;
+
+public class Map extends Controller {
+
+  public static Result index() {
+    return ok(map.render());
+  }
+
+}