fix handling of dynamic property in mappings of sub-documents

fixes #353

mapping_document.go

@@ -127,9 +127,41 @@ func (dm *DocumentMapping) fieldDescribedByPath(path string) *FieldMapping {
 	return nil
 }
 
+// documentMappingForPath only returns EXACT matches for a sub document
+// or for an explicitly mapped field, if you want to find the
+// closest document mapping to a field not explicitly mapped
+// use closestDocMapping
 func (dm *DocumentMapping) documentMappingForPath(path string) *DocumentMapping {
 	pathElements := decodePath(path)
 	current := dm
+OUTER:
+	for i, pathElement := range pathElements {
+		for name, subDocMapping := range current.Properties {
+			if name == pathElement {
+				current = subDocMapping
+				continue OUTER
+			}
+		}
+		// no subDocMapping matches this pathElement
+		// only if this is the last element check for field name
+		if i == len(pathElements)-1 {
+			for _, field := range current.Fields {
+				if field.Name == pathElement {
+					break
+				}
+			}
+		}
+
+		return nil
+	}
+	return current
+}
+
+// closestDocMapping findest the most specific document mapping that matches
+// part of the provided path
+func (dm *DocumentMapping) closestDocMapping(path string) *DocumentMapping {
+	pathElements := decodePath(path)
+	current := dm
 OUTER:
 	for _, pathElement := range pathElements {
 		for name, subDocMapping := range current.Properties {
@@ -138,12 +170,6 @@ OUTER:
 				continue OUTER
 			}
 		}
-		for _, field := range current.Fields {
-			if field.Name == pathElement {
-				continue OUTER
-			}
-		}
-		return nil
 	}
 	return current
 }
@@ -334,6 +360,7 @@ func (dm *DocumentMapping) processProperty(property interface{}, path []string,
 	pathString := encodePath(path)
 	// look to see if there is a mapping for this field
 	subDocMapping := dm.documentMappingForPath(pathString)
+	closestDocMapping := dm.closestDocMapping(pathString)
 
 	// check to see if we even need to do further processing
 	if subDocMapping != nil && !subDocMapping.Enabled {
@@ -354,7 +381,7 @@ func (dm *DocumentMapping) processProperty(property interface{}, path []string,
 			for _, fieldMapping := range subDocMapping.Fields {
 				fieldMapping.processString(propertyValueString, pathString, path, indexes, context)
 			}
-		} else if dm.Dynamic {
+		} else if closestDocMapping.Dynamic {
 			// automatic indexing behavior
 
 			// first see if it can be parsed by the default date parser
@@ -385,7 +412,7 @@ func (dm *DocumentMapping) processProperty(property interface{}, path []string,
 			for _, fieldMapping := range subDocMapping.Fields {
 				fieldMapping.processFloat64(propertyValFloat, pathString, path, indexes, context)
 			}
-		} else if dm.Dynamic {
+		} else if closestDocMapping.Dynamic {
 			// automatic indexing behavior
 			fieldMapping := newNumericFieldMappingDynamic(context.im)
 			fieldMapping.processFloat64(propertyValFloat, pathString, path, indexes, context)
@@ -397,7 +424,7 @@ func (dm *DocumentMapping) processProperty(property interface{}, path []string,
 			for _, fieldMapping := range subDocMapping.Fields {
 				fieldMapping.processBoolean(propertyValBool, pathString, path, indexes, context)
 			}
-		} else if dm.Dynamic {
+		} else if closestDocMapping.Dynamic {
 			// automatic indexing behavior
 			fieldMapping := newBooleanFieldMappingDynamic(context.im)
 			fieldMapping.processBoolean(propertyValBool, pathString, path, indexes, context)
@@ -411,7 +438,7 @@ func (dm *DocumentMapping) processProperty(property interface{}, path []string,
 				for _, fieldMapping := range subDocMapping.Fields {
 					fieldMapping.processTime(property, pathString, path, indexes, context)
 				}
-			} else if dm.Dynamic {
+			} else if closestDocMapping.Dynamic {
 				fieldMapping := newDateTimeFieldMappingDynamic(context.im)
 				fieldMapping.processTime(property, pathString, path, indexes, context)
 			}

mapping_test.go

@@ -556,3 +556,50 @@ func TestInvalidIndexMappingStrict(t *testing.T) {
 		t.Fatalf("expect to find index mapping default field 'all', got '%s'", im.DefaultField)
 	}
 }
+
+func TestMappingBug353(t *testing.T) {
+	dataBytes := `{
+  "Reviews": [
+    {
+      "ReviewID": "RX16692001",
+      "Content": "Usually stay near the airport..."
+    }
+	],
+	"Other": {
+	  "Inside": "text"
+  },
+  "Name": "The Inn at Baltimore White Marsh"
+}`
+
+	var data map[string]interface{}
+	err := json.Unmarshal([]byte(dataBytes), &data)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	reviewContentFieldMapping := NewTextFieldMapping()
+	reviewContentFieldMapping.Analyzer = "crazy"
+
+	reviewsMapping := NewDocumentMapping()
+	reviewsMapping.Dynamic = false
+	reviewsMapping.AddFieldMappingsAt("Content", reviewContentFieldMapping)
+	otherMapping := NewDocumentMapping()
+	otherMapping.Dynamic = false
+	mapping := NewIndexMapping()
+	mapping.DefaultMapping.AddSubDocumentMapping("Reviews", reviewsMapping)
+	mapping.DefaultMapping.AddSubDocumentMapping("Other", otherMapping)
+
+	doc := document.NewDocument("x")
+	err = mapping.mapDocument(doc, data)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// expect doc has only 2 fields
+	if len(doc.Fields) != 2 {
+		t.Errorf("expected doc with 2 fields, got: %d", len(doc.Fields))
+		for _, f := range doc.Fields {
+			t.Logf("field named: %s", f.Name())
+		}
+	}
+}