Allowing SearchableAttribute to apply multiple times on one field

src/Redis.OM/Modeling/SearchableAttribute.cs

@@ -6,7 +6,7 @@ namespace Redis.OM.Modeling
     /// <summary>
     /// Marks a field as searchable within a Redis Document.
     /// </summary>
-    [AttributeUsage(AttributeTargets.Property)]
+    [AttributeUsage(AttributeTargets.Property, AllowMultiple = true)]
     public sealed class SearchableAttribute : SearchFieldAttribute
     {
         /// <summary>

test/Redis.OM.Unit.Tests/RediSearchTests/ObjectWithMultipleSearchableAttributes.cs

@@ -0,0 +1,13 @@
+using Redis.OM.Modeling;
+
+namespace Redis.OM.Unit.Tests.RediSearchTests;
+
+[Document(StorageType = StorageType.Json)]
+public class ObjectWithMultipleSearchableAttributes
+{
+    [RedisIdField] public string Id { get; set; }
+
+    [Searchable(JsonPath = "$.City")]
+    [Searchable(JsonPath = "$.State")]
+    public Address Address { get; set; }
+}

test/Redis.OM.Unit.Tests/RediSearchTests/SearchFunctionalTests.cs

@@ -1227,5 +1227,23 @@ public void SaveDateTimeOffset()
             Assert.Equal(intermediate.Offset,final.Offset);
             Assert.Equal(intermediate.DateTime,final.DateTime);
         }
+
+        [Fact]
+        public void TestMultipleSearchAttributesOnEmbeddedDoc()
+        {
+            var obj = new ObjectWithMultipleSearchableAttributes()
+            {
+                Address = new Address
+                {
+                    City = "Long Beach Island",
+                    State = "New Jersey"
+                }
+            };
+
+            var collection = new RedisCollection<ObjectWithMultipleSearchableAttributes>(_connection);
+            collection.Insert(obj);
+            var res = collection.First(x => x.Address.City == "Long" && x.Address.State == "New");
+            Assert.Equal(obj.Id, res.Id);
+        }
     }
 }

test/Redis.OM.Unit.Tests/RediSearchTests/SearchTests.cs

@@ -3839,5 +3839,37 @@ public void TestBasicQueryCastToIQueryable()
                 "0",
                 "1234");
         }
+
+        [Fact]
+        public async Task TestIndexCreationWIthMultipleSearchFieldsForEmbeddedDoc()
+        {
+            _substitute.ExecuteAsync("FT.CREATE", Arg.Any<object[]>()).Returns("OK");
+            await _substitute.CreateIndexAsync(typeof(ObjectWithMultipleSearchableAttributes));
+            await _substitute.Received().ExecuteAsync("FT.CREATE",
+                "objectwithmultiplesearchableattributes-idx",
+                "ON",
+                "Json",
+                "PREFIX",
+                "1",
+                "Redis.OM.Unit.Tests.RediSearchTests.ObjectWithMultipleSearchableAttributes:",
+                "SCHEMA",
+                "$.Address.City", "AS", "Address_City", "TEXT",
+                "$.Address.State", "AS", "Address_State", "TEXT");
+        }
+
+        [Fact]
+        public async Task TestMultipleTextSearchOnEmbeddedDoc()
+        {
+            _substitute.ClearSubstitute();
+            _substitute.ExecuteAsync(Arg.Any<string>(), Arg.Any<object[]>()).Returns(_mockReply);
+            var collection = new RedisCollection<ObjectWithMultipleSearchableAttributes>(_substitute);
+            await collection.Where(x => x.Address.City == "Long" && x.Address.State == "New").ToListAsync();
+            await _substitute.Received().ExecuteAsync("FT.SEARCH",
+                "objectwithmultiplesearchableattributes-idx",
+                "((@Address_City:\"Long\") (@Address_State:\"New\"))",
+                "LIMIT",
+                "0",
+                "100");
+        }
     }
 }

test/Redis.OM.Unit.Tests/RedisSetupCollection.cs

@@ -30,6 +30,7 @@ public RedisSetup()
             Connection.CreateIndex(typeof(BasicJsonObjectTestSave));
             Connection.CreateIndex(typeof(SelectTestObject));
             Connection.CreateIndex(typeof(ObjectWithDateTimeOffsetJson));
+            Connection.CreateIndex(typeof(ObjectWithMultipleSearchableAttributes));
         }
 
         private IRedisConnectionProvider _provider;
@@ -62,6 +63,7 @@ public void Dispose()
             Connection.DropIndexAndAssociatedRecords(typeof(BasicJsonObjectTestSave));
             Connection.DropIndexAndAssociatedRecords(typeof(SelectTestObject));
             Connection.DropIndexAndAssociatedRecords(typeof(ObjectWithDateTimeOffsetJson));
+            Connection.DropIndexAndAssociatedRecords(typeof(ObjectWithMultipleSearchableAttributes));
         }
     }
 }