First Map/Reduce yehaaaaa

Produced by Enthusiasm Driven Development

bbv/Controllers/SearchController.cs

@@ -5,7 +5,9 @@
 
 namespace bbv.Controllers
 {
-	public class SearchController : RavenController
+    using Raven.Client.Linq;
+
+    public class SearchController : RavenController
 	{
 		 public object Magic(string q)
 		 {
@@ -49,8 +51,7 @@ public object Magic(string q)
 
         public object SearchRevenues(decimal value)
         {
-            var query = Session.Query<Orders_Search.RevenueResult, Orders_Search>()
-                .Where(x => x.Revenue > value)
+            var query = Queryable.Where(this.Session.Query<Orders_Search.RevenueResult, Orders_Search>(), x => x.Revenue > value)
                 .As<Order>();
 
             var results = query
@@ -71,5 +72,13 @@ public object CreateOrders()
             }
             return Json("Done");
         }
+
+        public object StudentsByEmailDomain(string emailDomain)
+        {
+            var results = Session.Query<Students_ByEmailDomain.Result, Students_ByEmailDomain>()
+                        .Where(x => x.EmailDomain == emailDomain);
+
+            return Json(results);
+        }
 	}
 }

bbv/Infrastructure/Indexes/Students_ByEmailDomain.cs

@@ -0,0 +1,35 @@
+namespace bbv.Infrastructure.Indexes
+{
+    using System.Linq;
+
+    using Raven.Client.Indexes;
+
+    using bbv.Models;
+
+    public class Students_ByEmailDomain : AbstractIndexCreationTask<Student, Students_ByEmailDomain.Result>
+    {
+        public class Result
+        {
+            public string EmailDomain { get; set; }
+            public int Count { get; set; }
+        }
+
+        public Students_ByEmailDomain()
+        {
+            Map = students => from student in students 
+                              select new
+                                  {
+                                      EmailDomain = student.Email.Split('@')[1],
+                                      Count = 1
+                                  };
+
+            Reduce = results => from result in results
+                                group result by result.EmailDomain into g
+                                select new
+                                    {
+                                        EmailDomain = g.Key,
+                                        Count = g.Sum(r => r.Count)
+                                    };
+        }
+    }
+}

bbv/bbv.csproj

@@ -124,6 +124,7 @@
     </Compile>
     <Compile Include="Infrastructure\AuditListener.cs" />
     <Compile Include="Infrastructure\Indexes\Orders_Search.cs" />
+    <Compile Include="Infrastructure\Indexes\Students_ByEmailDomain.cs" />
     <Compile Include="Infrastructure\Indexes\Students_Search.cs" />
     <Compile Include="Models\Course.cs" />
     <Compile Include="Models\Order.cs" />