DATAMONGO-1072 - Fix annotated query placeholders not replaced correctly.

We now also check field names for potential placeholder matches to ensure those are registered for binding parameters.

Original pull request: #233.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/StringBasedMongoQuery.java

@@ -262,6 +262,7 @@ public class StringBasedMongoQuery extends AbstractMongoQuery {
 				DBObject dbo = (DBObject) value;
 
 				for (String field : dbo.keySet()) {
+					collectParameterReferencesIntoBindings(bindings, field);
 					collectParameterReferencesIntoBindings(bindings, dbo.get(field));
 				}
 			}

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/AbstractPersonRepositoryIntegrationTests.java

@@ -1048,4 +1048,16 @@ public abstract class AbstractPersonRepositoryIntegrationTests {
 		slice = repository.findByAgeGreaterThan(50, slice.nextPageable());
 		assertThat(slice, contains(persons.subList(20, 40).toArray()));
 	}
+
+	/**
+	 * @see DATAMONGO-1072
+	 */
+	@Test
+	public void shouldBindPlaceholdersUsedAsKeysCorrectly() {
+
+		List<Person> persons = repository.findByKeyValue("firstname", alicia.getFirstname());
+
+		assertThat(persons, hasSize(1));
+		assertThat(persons, hasItem(alicia));
+	}
 }

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/PersonRepository.java

@@ -317,4 +317,7 @@ public interface PersonRepository extends MongoRepository<Person, String>, Query
 	 * @see DATAMONGO-1030
 	 */
 	PersonSummary findSummaryByLastname(String lastname);
+
+	@Query("{ ?0 : ?1 }")
+	List<Person> findByKeyValue(String key, String value);
 }

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/query/StringBasedMongoQueryUnitTests.java

@@ -43,6 +43,7 @@ import org.springframework.data.mongodb.repository.Query;
 import org.springframework.data.repository.core.RepositoryMetadata;
 
 import com.mongodb.BasicDBObject;
+import com.mongodb.BasicDBObjectBuilder;
 import com.mongodb.DBObject;
 import com.mongodb.DBRef;
 
@@ -273,6 +274,21 @@ public class StringBasedMongoQueryUnitTests {
 		assertThat(dbRef.getRef(), is("reference"));
 	}
 
+	/**
+	 * @see DATAMONGO-1072
+	 */
+	@Test
+	public void shouldParseJsonKeyReplacementCorrectly() throws Exception {
+
+		StringBasedMongoQuery mongoQuery = createQueryForMethod("methodWithPlaceholderInKeyOfJsonStructure", String.class,
+				String.class);
+		ConvertingParameterAccessor parameterAccessor = StubParameterAccessor.getAccessor(converter, "key", "value");
+
+		org.springframework.data.mongodb.core.query.Query query = mongoQuery.createQuery(parameterAccessor);
+
+		assertThat(query.getQueryObject(), is(new BasicDBObjectBuilder().add("key", "value").get()));
+	}
+
 	private StringBasedMongoQuery createQueryForMethod(String name, Class<?>... parameters) throws Exception {
 
 		Method method = SampleRepository.class.getMethod(name, parameters);
@@ -314,5 +330,9 @@ public class StringBasedMongoQueryUnitTests {
 
 		@Query("{ 'reference' : { $ref : 'reference', $id : ?0 }}")
 		Object methodWithManuallyDefinedDbRef(String id);
+
+		@Query("{ ?0 : ?1}")
+		Object methodWithPlaceholderInKeyOfJsonStructure(String keyReplacement, String valueReplacement);
+
 	}
 }