update to handle nested map + Array + Slice structs

util.go

@@ -78,8 +78,9 @@ func (v *Validate) getStructFieldOK(current reflect.Value, namespace string) (re
 				if idx == -1 {
 					ns = namespace[bracketIdx:]
 				} else {
-					ns = namespace[idx+bracketIdx:]
+					ns = namespace[bracketIdx:]
 				}
+				// fmt.Println("NSS2:", ns)
 			}
 
 			// fmt.Println("Looking for field:", fld)
@@ -93,6 +94,14 @@ func (v *Validate) getStructFieldOK(current reflect.Value, namespace string) (re
 	case reflect.Array, reflect.Slice:
 		idx := strings.Index(namespace, "[")
 		idx2 := strings.Index(namespace, "]")
+		// idx3 := strings.Index(namespace, namespaceSeparator)
+
+		// if idx3 == -1 {
+		// 	idx3 = 0
+		// } else {
+		// 	idx3 = 1
+		// }
+		//
 
 		arrIdx, _ := strconv.Atoi(namespace[idx+1 : idx2])
 
@@ -102,21 +111,36 @@ func (v *Validate) getStructFieldOK(current reflect.Value, namespace string) (re
 			return current, kind, false
 		}
 
-		return v.getStructFieldOK(current.Index(arrIdx), namespace[idx2+1:])
+		startIdx := idx2 + 1
+
+		if startIdx < len(namespace) {
+			if namespace[startIdx:startIdx+1] == "." {
+				startIdx++
+			}
+		}
+
+		return v.getStructFieldOK(current.Index(arrIdx), namespace[startIdx:])
 
 	case reflect.Map:
-		idx := strings.Index(namespace, "[")
+		idx := strings.Index(namespace, "[") + 1
 		idx2 := strings.Index(namespace, "]")
 
-		// key, _ := strconv.Atoi(namespace[idx+1 : idx2])
+		endIdx := idx2
 
-		// fmt.Println("ArrayIndex:", arrIdx)
+		// fmt.Println("END IDX:", endIdx)
-		// fmt.Println("LEN:", current.Len())
+		// fmt.Println("L NS:", len(namespace))
-		// if arrIdx >= current.Len() {
+		// fmt.Println("NS:", namespace)
-		// 	return current, kind, false
+
-		// }
+		if endIdx+1 < len(namespace) {
+			if namespace[endIdx+1:endIdx+2] == "." {
+				endIdx++
+			}
+		}
+
+		// fmt.Println("KEY:", namespace[idx:idx2])
+		// fmt.Println("KEY NS:", namespace[endIdx+1:])
 
-		return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(namespace[idx+1:idx2])), namespace[idx2+1:])
+		return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(namespace[idx:idx2])), namespace[endIdx+1:])
 	}
 
 	// fmt.Println("Returning field")

validator_test.go

@@ -194,10 +194,20 @@ func ValidateValuerType(field reflect.Value) interface{} {
 
 func TestCrossNamespaceFieldValidation(t *testing.T) {
 
+	type SliceStruct struct {
+		Name string
+	}
+
+	type MapStruct struct {
+		Name string
+	}
+
 	type Inner struct {
-		CreatedAt *time.Time
+		CreatedAt    *time.Time
-		Slice     []string
+		Slice        []string
-		Map       map[string]string
+		SliceStructs []*SliceStruct
+		Map          map[string]string
+		MapStructs   map[string]*SliceStruct
 	}
 
 	type Test struct {
@@ -208,9 +218,11 @@ func TestCrossNamespaceFieldValidation(t *testing.T) {
 	now := time.Now()
 
 	inner := &Inner{
-		CreatedAt: &now,
+		CreatedAt:    &now,
-		Slice:     []string{"val1", "val2", "val3"},
+		Slice:        []string{"val1", "val2", "val3"},
-		Map:       map[string]string{"key1": "val1", "key2": "val2", "key3": "val3"},
+		SliceStructs: []*SliceStruct{{Name: "name1"}, {Name: "name2"}, {Name: "name3"}},
+		Map:          map[string]string{"key1": "val1", "key2": "val2", "key3": "val3"},
+		MapStructs:   map[string]*SliceStruct{"key1": {Name: "name1"}, "key2": {Name: "name2"}, "key3": {Name: "name3"}},
 	}
 
 	test := &Test{
@@ -232,6 +244,9 @@ func TestCrossNamespaceFieldValidation(t *testing.T) {
 	Equal(t, kind, reflect.String)
 	Equal(t, current.String(), "val2")
 
+	current, kind, ok = validate.getStructFieldOK(val, "Inner.CrazyNonExistantField")
+	Equal(t, ok, false)
+
 	current, kind, ok = validate.getStructFieldOK(val, "Inner.Slice[101]")
 	Equal(t, ok, false)
 
@@ -240,9 +255,10 @@ func TestCrossNamespaceFieldValidation(t *testing.T) {
 	Equal(t, kind, reflect.String)
 	Equal(t, current.String(), "val3")
 
-	// fmt.Println(ok)
+	current, kind, ok = validate.getStructFieldOK(val, "Inner.MapStructs[key2].Name")
-	// fmt.Println(current)
+	Equal(t, ok, true)
-	// fmt.Println(kind)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "name2")
 }
 
 func TestExistsValidation(t *testing.T) {