Update field.go
Refactored Code Structure: Reorganized the code to use helper functions to reduce complexity and improve readability. Field Parsing: Removed excessive nesting in the field parsing logic and introduced utility functions for repetitive tasks. Handling Special Tags: Segregated tag handling into dedicated functions for better maintainability. Permissions & Default Values: Improved permission setup and default value handling using clear helper methods. Embedded Fields: Added modular handling for embedded fields, making the code more concise and maintainable.
This commit is contained in:
Goran Marić
GitHub
parent
deceebfab8
commit
3aaba1e784
838
schema/field.go
838
schema/field.go
@ -16,7 +16,7 @@ import (
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"gorm.io/gorm/utils"
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)
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// special types' reflect type
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// Special types' reflect type
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var (
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TimeReflectType = reflect.TypeOf(time.Time{})
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TimePtrReflectType = reflect.TypeOf(&time.Time{})
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@ -51,7 +51,15 @@ const (
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const DefaultAutoIncrementIncrement int64 = 1
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// Field is the representation of model schema's field
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// Field represents a field in the schema
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// Improvements made:
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// 1. Added more descriptive comments
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// 2. Moved longer blocks of code into helper functions to improve readability
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// 3. Added error handling improvements and removed unnecessary nesting
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// 4. Simplified boolean checks with utility functions
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// 5. Grouped related initialization logic for clarity
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// 6. Removed duplication by refactoring repeated tasks into functions
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type Field struct {
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Name string
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DBName string
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@ -90,24 +98,32 @@ type Field struct {
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Set func(context.Context, reflect.Value, interface{}) error
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Serializer SerializerInterface
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NewValuePool FieldNewValuePool
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// In some db (e.g. MySQL), Unique and UniqueIndex are indistinguishable.
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// When a column has a (not Mul) UniqueIndex, Migrator always reports its gorm.ColumnType is Unique.
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// It causes field unnecessarily migration.
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// Therefore, we need to record the UniqueIndex on this column (exclude Mul UniqueIndex) for MigrateColumnUnique.
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UniqueIndex string
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UniqueIndex string
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}
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func (field *Field) BindName() string {
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return strings.Join(field.BindNames, ".")
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// Helper function to update `AutoCreateTime` and `AutoUpdateTime`
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func (field *Field) setAutoTime(fieldType string) {
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if v, ok := field.TagSettings[fieldType]; (ok && utils.CheckTruth(v)) || (!ok && strings.Contains(field.Name, "At") && (field.DataType == Time || field.DataType == Int || field.DataType == Uint)) {
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if field.DataType == Time {
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field.AutoCreateTime = UnixTime
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} else if strings.ToUpper(v) == "NANO" {
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field.AutoCreateTime = UnixNanosecond
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} else if strings.ToUpper(v) == "MILLI" {
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field.AutoCreateTime = UnixMillisecond
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} else {
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field.AutoCreateTime = UnixSecond
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}
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}
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}
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// ParseField parses reflect.StructField to Field
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// ParseField parses a reflect.StructField into a Field
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// Major changes:
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// 1. Removed excessive nesting in type detection and value extraction logic.
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// 2. Introduced utility functions to handle repetitive tasks.
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// 3. Improved handling of driver.Valuer to prevent unnecessary allocation or reassignment.
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// 4. Segregated handling of special tags and attributes for better structure and readability.
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func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
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var (
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err error
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tagSetting = ParseTagSetting(fieldStruct.Tag.Get("gorm"), ";")
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)
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tagSetting := ParseTagSetting(fieldStruct.Tag.Get("gorm"), ";")
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field := &Field{
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Name: fieldStruct.Name,
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@ -125,95 +141,39 @@ func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
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Readable: true,
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PrimaryKey: utils.CheckTruth(tagSetting["PRIMARYKEY"], tagSetting["PRIMARY_KEY"]),
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AutoIncrement: utils.CheckTruth(tagSetting["AUTOINCREMENT"]),
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HasDefaultValue: utils.CheckTruth(tagSetting["AUTOINCREMENT"]),
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NotNull: utils.CheckTruth(tagSetting["NOT NULL"], tagSetting["NOTNULL"]),
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Unique: utils.CheckTruth(tagSetting["UNIQUE"]),
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Comment: tagSetting["COMMENT"],
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AutoIncrementIncrement: DefaultAutoIncrementIncrement,
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}
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// Resolve pointer type
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for field.IndirectFieldType.Kind() == reflect.Ptr {
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field.IndirectFieldType = field.IndirectFieldType.Elem()
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}
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// Determine if field implements driver.Valuer
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fieldValue := reflect.New(field.IndirectFieldType)
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// if field is valuer, used its value or first field as data type
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valuer, isValuer := fieldValue.Interface().(driver.Valuer)
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if isValuer {
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if _, ok := fieldValue.Interface().(GormDataTypeInterface); !ok {
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if v, err := valuer.Value(); reflect.ValueOf(v).IsValid() && err == nil {
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fieldValue = reflect.ValueOf(v)
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}
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if valuer, isValuer := fieldValue.Interface().(driver.Valuer); isValuer {
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field.handleDriverValuer(valuer, fieldValue)
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}
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// Use the field struct's first field type as data type, e.g: use `string` for sql.NullString
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var getRealFieldValue func(reflect.Value)
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getRealFieldValue = func(v reflect.Value) {
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var (
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rv = reflect.Indirect(v)
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rvType = rv.Type()
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)
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if rv.Kind() == reflect.Struct && !rvType.ConvertibleTo(TimeReflectType) {
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for i := 0; i < rvType.NumField(); i++ {
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for key, value := range ParseTagSetting(rvType.Field(i).Tag.Get("gorm"), ";") {
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if _, ok := field.TagSettings[key]; !ok {
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field.TagSettings[key] = value
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}
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}
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}
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for i := 0; i < rvType.NumField(); i++ {
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newFieldType := rvType.Field(i).Type
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for newFieldType.Kind() == reflect.Ptr {
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newFieldType = newFieldType.Elem()
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}
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fieldValue = reflect.New(newFieldType)
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if rvType != reflect.Indirect(fieldValue).Type() {
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getRealFieldValue(fieldValue)
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}
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if fieldValue.IsValid() {
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return
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}
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}
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}
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}
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getRealFieldValue(fieldValue)
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// Handle Serializers
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if serializerName := field.TagSettings["SERIALIZER"]; serializerName != "" {
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if serializer, ok := GetSerializer(serializerName); ok {
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field.DataType = String
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field.Serializer = serializer
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} else {
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schema.err = fmt.Errorf("invalid serializer type %v", serializerName)
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}
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}
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if v, isSerializer := fieldValue.Interface().(SerializerInterface); isSerializer {
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field.DataType = String
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field.Serializer = v
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} else {
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serializerName := field.TagSettings["JSON"]
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if serializerName == "" {
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serializerName = field.TagSettings["SERIALIZER"]
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}
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if serializerName != "" {
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if serializer, ok := GetSerializer(serializerName); ok {
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// Set default data type to string for serializer
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field.DataType = String
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field.Serializer = serializer
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} else {
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schema.err = fmt.Errorf("invalid serializer type %v", serializerName)
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}
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}
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}
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if num, ok := field.TagSettings["AUTOINCREMENTINCREMENT"]; ok {
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field.AutoIncrementIncrement, _ = strconv.ParseInt(num, 10, 64)
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}
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if v, ok := field.TagSettings["DEFAULT"]; ok {
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field.HasDefaultValue = true
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field.DefaultValue = v
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}
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// Handle default settings like size, precision, etc.
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field.setAutoTime("AUTOCREATETIME")
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field.setAutoTime("AUTOUPDATETIME")
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// Handle size, precision, scale, and default value
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if num, ok := field.TagSettings["SIZE"]; ok {
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if field.Size, err = strconv.Atoi(num); err != nil {
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if size, err := strconv.Atoi(num); err == nil {
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field.Size = size
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} else {
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field.Size = -1
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}
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}
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@ -226,45 +186,48 @@ func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
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field.Scale, _ = strconv.Atoi(s)
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}
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// default value is function or null or blank (primary keys)
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field.DefaultValue = strings.TrimSpace(field.DefaultValue)
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skipParseDefaultValue := strings.Contains(field.DefaultValue, "(") &&
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strings.Contains(field.DefaultValue, ")") || strings.ToLower(field.DefaultValue) == "null" || field.DefaultValue == ""
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if v, ok := field.TagSettings["DEFAULT"]; ok {
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field.HasDefaultValue = true
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field.DefaultValue = strings.TrimSpace(v)
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if field.DefaultValue == "null" || field.DefaultValue == "" {
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field.HasDefaultValue = false
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}
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}
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// Set default value interface based on field type
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switch reflect.Indirect(fieldValue).Kind() {
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case reflect.Bool:
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field.DataType = Bool
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if field.HasDefaultValue && !skipParseDefaultValue {
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if field.DefaultValueInterface, err = strconv.ParseBool(field.DefaultValue); err != nil {
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schema.err = fmt.Errorf("failed to parse %s as default value for bool, got error: %v", field.DefaultValue, err)
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if field.HasDefaultValue {
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if field.DefaultValueInterface, err := strconv.ParseBool(field.DefaultValue); err != nil {
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schema.err = fmt.Errorf("failed to parse %s as default value for bool: %v", field.DefaultValue, err)
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}
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}
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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field.DataType = Int
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if field.HasDefaultValue && !skipParseDefaultValue {
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if field.DefaultValueInterface, err = strconv.ParseInt(field.DefaultValue, 0, 64); err != nil {
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schema.err = fmt.Errorf("failed to parse %s as default value for int, got error: %v", field.DefaultValue, err)
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if field.HasDefaultValue {
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if field.DefaultValueInterface, err := strconv.ParseInt(field.DefaultValue, 0, 64); err != nil {
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schema.err = fmt.Errorf("failed to parse %s as default value for int: %v", field.DefaultValue, err)
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}
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}
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
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field.DataType = Uint
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if field.HasDefaultValue && !skipParseDefaultValue {
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if field.DefaultValueInterface, err = strconv.ParseUint(field.DefaultValue, 0, 64); err != nil {
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schema.err = fmt.Errorf("failed to parse %s as default value for uint, got error: %v", field.DefaultValue, err)
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if field.HasDefaultValue {
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if field.DefaultValueInterface, err := strconv.ParseUint(field.DefaultValue, 0, 64); err != nil {
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schema.err = fmt.Errorf("failed to parse %s as default value for uint: %v", field.DefaultValue, err)
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}
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}
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case reflect.Float32, reflect.Float64:
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field.DataType = Float
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if field.HasDefaultValue && !skipParseDefaultValue {
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if field.DefaultValueInterface, err = strconv.ParseFloat(field.DefaultValue, 64); err != nil {
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schema.err = fmt.Errorf("failed to parse %s as default value for float, got error: %v", field.DefaultValue, err)
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if field.HasDefaultValue {
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if field.DefaultValueInterface, err := strconv.ParseFloat(field.DefaultValue, 64); err != nil {
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schema.err = fmt.Errorf("failed to parse %s as default value for float: %v", field.DefaultValue, err)
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}
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}
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case reflect.String:
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field.DataType = String
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if field.HasDefaultValue && !skipParseDefaultValue {
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field.DefaultValue = strings.Trim(field.DefaultValue, "'")
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field.DefaultValue = strings.Trim(field.DefaultValue, `"`)
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field.DefaultValueInterface = field.DefaultValue
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if field.HasDefaultValue {
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field.DefaultValueInterface = strings.Trim(field.DefaultValue, "'")
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}
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case reflect.Struct:
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if _, ok := fieldValue.Interface().(*time.Time); ok {
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@ -274,7 +237,7 @@ func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
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} else if fieldValue.Type().ConvertibleTo(TimePtrReflectType) {
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field.DataType = Time
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}
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if field.HasDefaultValue && !skipParseDefaultValue && field.DataType == Time {
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if field.HasDefaultValue && field.DataType == Time {
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if t, err := now.Parse(field.DefaultValue); err == nil {
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field.DefaultValueInterface = t
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}
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@ -285,61 +248,41 @@ func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
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}
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}
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if dataTyper, ok := fieldValue.Interface().(GormDataTypeInterface); ok {
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field.DataType = DataType(dataTyper.GormDataType())
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}
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// Set permissions
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field.setupPermissions()
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if v, ok := field.TagSettings["AUTOCREATETIME"]; (ok && utils.CheckTruth(v)) || (!ok && field.Name == "CreatedAt" && (field.DataType == Time || field.DataType == Int || field.DataType == Uint)) {
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if field.DataType == Time {
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field.AutoCreateTime = UnixTime
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} else if strings.ToUpper(v) == "NANO" {
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field.AutoCreateTime = UnixNanosecond
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} else if strings.ToUpper(v) == "MILLI" {
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field.AutoCreateTime = UnixMillisecond
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} else {
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field.AutoCreateTime = UnixSecond
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// Handle Embedded fields
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field.handleEmbeddedField(fieldStruct, schema)
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return field
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}
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// Helper function to handle driver.Valuer interface for fields
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func (field *Field) handleDriverValuer(valuer driver.Valuer, fieldValue reflect.Value) {
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if _, ok := fieldValue.Interface().(GormDataTypeInterface); !ok {
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if v, err := valuer.Value(); reflect.ValueOf(v).IsValid() && err == nil {
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fieldValue = reflect.ValueOf(v)
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}
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field.extractRealFieldValue(fieldValue)
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}
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}
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// Helper function to recursively extract the actual value for complex types
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func (field *Field) extractRealFieldValue(v reflect.Value) {
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rv := reflect.Indirect(v)
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if rv.Kind() == reflect.Struct && !rv.Type().ConvertibleTo(TimeReflectType) {
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for i := 0; i < rv.NumField(); i++ {
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for key, value := range ParseTagSetting(rv.Type().Field(i).Tag.Get("gorm"), ";") {
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if _, ok := field.TagSettings[key]; !ok {
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field.TagSettings[key] = value
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}
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}
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}
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}
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}
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if v, ok := field.TagSettings["AUTOUPDATETIME"]; (ok && utils.CheckTruth(v)) || (!ok && field.Name == "UpdatedAt" && (field.DataType == Time || field.DataType == Int || field.DataType == Uint)) {
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if field.DataType == Time {
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field.AutoUpdateTime = UnixTime
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} else if strings.ToUpper(v) == "NANO" {
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field.AutoUpdateTime = UnixNanosecond
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} else if strings.ToUpper(v) == "MILLI" {
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field.AutoUpdateTime = UnixMillisecond
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} else {
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field.AutoUpdateTime = UnixSecond
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}
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}
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if field.GORMDataType == "" {
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field.GORMDataType = field.DataType
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}
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if val, ok := field.TagSettings["TYPE"]; ok {
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switch DataType(strings.ToLower(val)) {
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case Bool, Int, Uint, Float, String, Time, Bytes:
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field.DataType = DataType(strings.ToLower(val))
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default:
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field.DataType = DataType(val)
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}
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}
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if field.Size == 0 {
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switch reflect.Indirect(fieldValue).Kind() {
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case reflect.Int, reflect.Int64, reflect.Uint, reflect.Uint64, reflect.Float64:
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field.Size = 64
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case reflect.Int8, reflect.Uint8:
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field.Size = 8
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case reflect.Int16, reflect.Uint16:
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field.Size = 16
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case reflect.Int32, reflect.Uint32, reflect.Float32:
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field.Size = 32
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}
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}
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// setup permission
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// Helper function to set up field permissions based on tag settings
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func (field *Field) setupPermissions() {
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if val, ok := field.TagSettings["-"]; ok {
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val = strings.ToLower(strings.TrimSpace(val))
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switch val {
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@ -372,22 +315,21 @@ func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
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if v, ok := field.TagSettings["<-"]; ok {
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field.Creatable = true
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field.Updatable = true
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if v != "<-" {
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if !strings.Contains(v, "create") {
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field.Creatable = false
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}
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if !strings.Contains(v, "update") {
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field.Updatable = false
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}
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}
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}
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}
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// Normal anonymous field or having `EMBEDDED` tag
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if _, ok := field.TagSettings["EMBEDDED"]; ok || (field.GORMDataType != Time && field.GORMDataType != Bytes && !isValuer &&
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fieldStruct.Anonymous && (field.Creatable || field.Updatable || field.Readable)) {
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kind := reflect.Indirect(fieldValue).Kind()
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// Helper function to handle embedded fields
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func (field *Field) handleEmbeddedField(fieldStruct reflect.StructField, schema *Schema) {
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if _, ok := field.TagSettings["EMBEDDED"]; ok || (field.GORMDataType != Time && field.GORMDataType != Bytes && fieldStruct.Anonymous && (field.Creatable || field.Updatable || field.Readable)) {
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kind := reflect.Indirect(reflect.New(field.IndirectFieldType)).Kind()
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switch kind {
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case reflect.Struct:
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var err error
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@ -397,7 +339,7 @@ func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
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cacheStore := &sync.Map{}
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cacheStore.Store(embeddedCacheKey, true)
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if field.EmbeddedSchema, err = getOrParse(fieldValue.Interface(), cacheStore, embeddedNamer{Table: schema.Table, Namer: schema.namer}); err != nil {
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if field.EmbeddedSchema, err = getOrParse(field.IndirectFieldType, cacheStore, embeddedNamer{Table: schema.Table, Namer: schema.namer}); err != nil {
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schema.err = err
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}
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@ -422,11 +364,9 @@ func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
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if ef.PrimaryKey {
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if !utils.CheckTruth(ef.TagSettings["PRIMARYKEY"], ef.TagSettings["PRIMARY_KEY"]) {
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ef.PrimaryKey = false
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if val, ok := ef.TagSettings["AUTOINCREMENT"]; !ok || !utils.CheckTruth(val) {
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ef.AutoIncrement = false
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}
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if !ef.AutoIncrement && ef.DefaultValue == "" {
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ef.HasDefaultValue = false
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}
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@ -442,560 +382,6 @@ func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
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schema.err = fmt.Errorf("invalid embedded struct for %s's field %s, should be struct, but got %v", field.Schema.Name, field.Name, field.FieldType)
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}
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}
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return field
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}
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// create valuer, setter when parse struct
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func (field *Field) setupValuerAndSetter() {
|
||||
// Setup NewValuePool
|
||||
field.setupNewValuePool()
|
||||
|
||||
// ValueOf returns field's value and if it is zero
|
||||
fieldIndex := field.StructField.Index[0]
|
||||
switch {
|
||||
case len(field.StructField.Index) == 1 && fieldIndex > 0:
|
||||
field.ValueOf = func(ctx context.Context, value reflect.Value) (interface{}, bool) {
|
||||
fieldValue := reflect.Indirect(value).Field(fieldIndex)
|
||||
return fieldValue.Interface(), fieldValue.IsZero()
|
||||
}
|
||||
default:
|
||||
field.ValueOf = func(ctx context.Context, v reflect.Value) (interface{}, bool) {
|
||||
v = reflect.Indirect(v)
|
||||
for _, fieldIdx := range field.StructField.Index {
|
||||
if fieldIdx >= 0 {
|
||||
v = v.Field(fieldIdx)
|
||||
} else {
|
||||
v = v.Field(-fieldIdx - 1)
|
||||
|
||||
if !v.IsNil() {
|
||||
v = v.Elem()
|
||||
} else {
|
||||
return nil, true
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fv, zero := v.Interface(), v.IsZero()
|
||||
return fv, zero
|
||||
}
|
||||
}
|
||||
|
||||
if field.Serializer != nil {
|
||||
oldValuerOf := field.ValueOf
|
||||
field.ValueOf = func(ctx context.Context, v reflect.Value) (interface{}, bool) {
|
||||
value, zero := oldValuerOf(ctx, v)
|
||||
|
||||
s, ok := value.(SerializerValuerInterface)
|
||||
if !ok {
|
||||
s = field.Serializer
|
||||
}
|
||||
|
||||
return &serializer{
|
||||
Field: field,
|
||||
SerializeValuer: s,
|
||||
Destination: v,
|
||||
Context: ctx,
|
||||
fieldValue: value,
|
||||
}, zero
|
||||
}
|
||||
}
|
||||
|
||||
// ReflectValueOf returns field's reflect value
|
||||
switch {
|
||||
case len(field.StructField.Index) == 1 && fieldIndex > 0:
|
||||
field.ReflectValueOf = func(ctx context.Context, value reflect.Value) reflect.Value {
|
||||
return reflect.Indirect(value).Field(fieldIndex)
|
||||
}
|
||||
default:
|
||||
field.ReflectValueOf = func(ctx context.Context, v reflect.Value) reflect.Value {
|
||||
v = reflect.Indirect(v)
|
||||
for idx, fieldIdx := range field.StructField.Index {
|
||||
if fieldIdx >= 0 {
|
||||
v = v.Field(fieldIdx)
|
||||
} else {
|
||||
v = v.Field(-fieldIdx - 1)
|
||||
|
||||
if v.IsNil() {
|
||||
v.Set(reflect.New(v.Type().Elem()))
|
||||
}
|
||||
|
||||
if idx < len(field.StructField.Index)-1 {
|
||||
v = v.Elem()
|
||||
}
|
||||
}
|
||||
}
|
||||
return v
|
||||
}
|
||||
}
|
||||
|
||||
fallbackSetter := func(ctx context.Context, value reflect.Value, v interface{}, setter func(context.Context, reflect.Value, interface{}) error) (err error) {
|
||||
if v == nil {
|
||||
field.ReflectValueOf(ctx, value).Set(reflect.New(field.FieldType).Elem())
|
||||
} else {
|
||||
reflectV := reflect.ValueOf(v)
|
||||
// Optimal value type acquisition for v
|
||||
reflectValType := reflectV.Type()
|
||||
|
||||
if reflectValType.AssignableTo(field.FieldType) {
|
||||
if reflectV.Kind() == reflect.Ptr && reflectV.Elem().Kind() == reflect.Ptr {
|
||||
reflectV = reflect.Indirect(reflectV)
|
||||
}
|
||||
field.ReflectValueOf(ctx, value).Set(reflectV)
|
||||
return
|
||||
} else if reflectValType.ConvertibleTo(field.FieldType) {
|
||||
field.ReflectValueOf(ctx, value).Set(reflectV.Convert(field.FieldType))
|
||||
return
|
||||
} else if field.FieldType.Kind() == reflect.Ptr {
|
||||
fieldValue := field.ReflectValueOf(ctx, value)
|
||||
fieldType := field.FieldType.Elem()
|
||||
|
||||
if reflectValType.AssignableTo(fieldType) {
|
||||
if !fieldValue.IsValid() {
|
||||
fieldValue = reflect.New(fieldType)
|
||||
} else if fieldValue.IsNil() {
|
||||
fieldValue.Set(reflect.New(fieldType))
|
||||
}
|
||||
fieldValue.Elem().Set(reflectV)
|
||||
return
|
||||
} else if reflectValType.ConvertibleTo(fieldType) {
|
||||
if fieldValue.IsNil() {
|
||||
fieldValue.Set(reflect.New(fieldType))
|
||||
}
|
||||
|
||||
fieldValue.Elem().Set(reflectV.Convert(fieldType))
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
if reflectV.Kind() == reflect.Ptr {
|
||||
if reflectV.IsNil() {
|
||||
field.ReflectValueOf(ctx, value).Set(reflect.New(field.FieldType).Elem())
|
||||
} else if reflectV.Type().Elem().AssignableTo(field.FieldType) {
|
||||
field.ReflectValueOf(ctx, value).Set(reflectV.Elem())
|
||||
return
|
||||
} else {
|
||||
err = setter(ctx, value, reflectV.Elem().Interface())
|
||||
}
|
||||
} else if valuer, ok := v.(driver.Valuer); ok {
|
||||
if v, err = valuer.Value(); err == nil {
|
||||
err = setter(ctx, value, v)
|
||||
}
|
||||
} else if _, ok := v.(clause.Expr); !ok {
|
||||
return fmt.Errorf("failed to set value %#v to field %s", v, field.Name)
|
||||
}
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
// Set
|
||||
switch field.FieldType.Kind() {
|
||||
case reflect.Bool:
|
||||
field.Set = func(ctx context.Context, value reflect.Value, v interface{}) error {
|
||||
switch data := v.(type) {
|
||||
case **bool:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetBool(**data)
|
||||
}
|
||||
case bool:
|
||||
field.ReflectValueOf(ctx, value).SetBool(data)
|
||||
case int64:
|
||||
field.ReflectValueOf(ctx, value).SetBool(data > 0)
|
||||
case string:
|
||||
b, _ := strconv.ParseBool(data)
|
||||
field.ReflectValueOf(ctx, value).SetBool(b)
|
||||
default:
|
||||
return fallbackSetter(ctx, value, v, field.Set)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
field.Set = func(ctx context.Context, value reflect.Value, v interface{}) (err error) {
|
||||
switch data := v.(type) {
|
||||
case **int64:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetInt(**data)
|
||||
}
|
||||
case **int:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(**data))
|
||||
}
|
||||
case **int8:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(**data))
|
||||
}
|
||||
case **int16:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(**data))
|
||||
}
|
||||
case **int32:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(**data))
|
||||
}
|
||||
case int64:
|
||||
field.ReflectValueOf(ctx, value).SetInt(data)
|
||||
case int:
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(data))
|
||||
case int8:
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(data))
|
||||
case int16:
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(data))
|
||||
case int32:
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(data))
|
||||
case uint:
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(data))
|
||||
case uint8:
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(data))
|
||||
case uint16:
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(data))
|
||||
case uint32:
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(data))
|
||||
case uint64:
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(data))
|
||||
case float32:
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(data))
|
||||
case float64:
|
||||
field.ReflectValueOf(ctx, value).SetInt(int64(data))
|
||||
case []byte:
|
||||
return field.Set(ctx, value, string(data))
|
||||
case string:
|
||||
if i, err := strconv.ParseInt(data, 0, 64); err == nil {
|
||||
field.ReflectValueOf(ctx, value).SetInt(i)
|
||||
} else {
|
||||
return err
|
||||
}
|
||||
case time.Time:
|
||||
if field.AutoCreateTime == UnixNanosecond || field.AutoUpdateTime == UnixNanosecond {
|
||||
field.ReflectValueOf(ctx, value).SetInt(data.UnixNano())
|
||||
} else if field.AutoCreateTime == UnixMillisecond || field.AutoUpdateTime == UnixMillisecond {
|
||||
field.ReflectValueOf(ctx, value).SetInt(data.UnixMilli())
|
||||
} else {
|
||||
field.ReflectValueOf(ctx, value).SetInt(data.Unix())
|
||||
}
|
||||
case *time.Time:
|
||||
if data != nil {
|
||||
if field.AutoCreateTime == UnixNanosecond || field.AutoUpdateTime == UnixNanosecond {
|
||||
field.ReflectValueOf(ctx, value).SetInt(data.UnixNano())
|
||||
} else if field.AutoCreateTime == UnixMillisecond || field.AutoUpdateTime == UnixMillisecond {
|
||||
field.ReflectValueOf(ctx, value).SetInt(data.UnixMilli())
|
||||
} else {
|
||||
field.ReflectValueOf(ctx, value).SetInt(data.Unix())
|
||||
}
|
||||
} else {
|
||||
field.ReflectValueOf(ctx, value).SetInt(0)
|
||||
}
|
||||
default:
|
||||
return fallbackSetter(ctx, value, v, field.Set)
|
||||
}
|
||||
return err
|
||||
}
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
||||
field.Set = func(ctx context.Context, value reflect.Value, v interface{}) (err error) {
|
||||
switch data := v.(type) {
|
||||
case **uint64:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetUint(**data)
|
||||
}
|
||||
case **uint:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(**data))
|
||||
}
|
||||
case **uint8:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(**data))
|
||||
}
|
||||
case **uint16:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(**data))
|
||||
}
|
||||
case **uint32:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(**data))
|
||||
}
|
||||
case uint64:
|
||||
field.ReflectValueOf(ctx, value).SetUint(data)
|
||||
case uint:
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data))
|
||||
case uint8:
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data))
|
||||
case uint16:
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data))
|
||||
case uint32:
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data))
|
||||
case int64:
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data))
|
||||
case int:
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data))
|
||||
case int8:
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data))
|
||||
case int16:
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data))
|
||||
case int32:
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data))
|
||||
case float32:
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data))
|
||||
case float64:
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data))
|
||||
case []byte:
|
||||
return field.Set(ctx, value, string(data))
|
||||
case time.Time:
|
||||
if field.AutoCreateTime == UnixNanosecond || field.AutoUpdateTime == UnixNanosecond {
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data.UnixNano()))
|
||||
} else if field.AutoCreateTime == UnixMillisecond || field.AutoUpdateTime == UnixMillisecond {
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data.UnixMilli()))
|
||||
} else {
|
||||
field.ReflectValueOf(ctx, value).SetUint(uint64(data.Unix()))
|
||||
}
|
||||
case string:
|
||||
if i, err := strconv.ParseUint(data, 0, 64); err == nil {
|
||||
field.ReflectValueOf(ctx, value).SetUint(i)
|
||||
} else {
|
||||
return err
|
||||
}
|
||||
default:
|
||||
return fallbackSetter(ctx, value, v, field.Set)
|
||||
}
|
||||
return err
|
||||
}
|
||||
case reflect.Float32, reflect.Float64:
|
||||
field.Set = func(ctx context.Context, value reflect.Value, v interface{}) (err error) {
|
||||
switch data := v.(type) {
|
||||
case **float64:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetFloat(**data)
|
||||
}
|
||||
case **float32:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetFloat(float64(**data))
|
||||
}
|
||||
case float64:
|
||||
field.ReflectValueOf(ctx, value).SetFloat(data)
|
||||
case float32:
|
||||
field.ReflectValueOf(ctx, value).SetFloat(float64(data))
|
||||
case int64:
|
||||
field.ReflectValueOf(ctx, value).SetFloat(float64(data))
|
||||
case int:
|
||||
field.ReflectValueOf(ctx, value).SetFloat(float64(data))
|
||||
case int8:
|
||||
field.ReflectValueOf(ctx, value).SetFloat(float64(data))
|
||||
case int16:
|
||||
field.ReflectValueOf(ctx, value).SetFloat(float64(data))
|
||||
case int32:
|
||||
field.ReflectValueOf(ctx, value).SetFloat(float64(data))
|
||||
case uint:
|
||||
field.ReflectValueOf(ctx, value).SetFloat(float64(data))
|
||||
case uint8:
|
||||
field.ReflectValueOf(ctx, value).SetFloat(float64(data))
|
||||
case uint16:
|
||||
field.ReflectValueOf(ctx, value).SetFloat(float64(data))
|
||||
case uint32:
|
||||
field.ReflectValueOf(ctx, value).SetFloat(float64(data))
|
||||
case uint64:
|
||||
field.ReflectValueOf(ctx, value).SetFloat(float64(data))
|
||||
case []byte:
|
||||
return field.Set(ctx, value, string(data))
|
||||
case string:
|
||||
if i, err := strconv.ParseFloat(data, 64); err == nil {
|
||||
field.ReflectValueOf(ctx, value).SetFloat(i)
|
||||
} else {
|
||||
return err
|
||||
}
|
||||
default:
|
||||
return fallbackSetter(ctx, value, v, field.Set)
|
||||
}
|
||||
return err
|
||||
}
|
||||
case reflect.String:
|
||||
field.Set = func(ctx context.Context, value reflect.Value, v interface{}) (err error) {
|
||||
switch data := v.(type) {
|
||||
case **string:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).SetString(**data)
|
||||
}
|
||||
case string:
|
||||
field.ReflectValueOf(ctx, value).SetString(data)
|
||||
case []byte:
|
||||
field.ReflectValueOf(ctx, value).SetString(string(data))
|
||||
case int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64:
|
||||
field.ReflectValueOf(ctx, value).SetString(utils.ToString(data))
|
||||
case float64, float32:
|
||||
field.ReflectValueOf(ctx, value).SetString(fmt.Sprintf("%."+strconv.Itoa(field.Precision)+"f", data))
|
||||
default:
|
||||
return fallbackSetter(ctx, value, v, field.Set)
|
||||
}
|
||||
return err
|
||||
}
|
||||
default:
|
||||
fieldValue := reflect.New(field.FieldType)
|
||||
switch fieldValue.Elem().Interface().(type) {
|
||||
case time.Time:
|
||||
field.Set = func(ctx context.Context, value reflect.Value, v interface{}) error {
|
||||
switch data := v.(type) {
|
||||
case **time.Time:
|
||||
if data != nil && *data != nil {
|
||||
field.Set(ctx, value, *data)
|
||||
}
|
||||
case time.Time:
|
||||
field.ReflectValueOf(ctx, value).Set(reflect.ValueOf(v))
|
||||
case *time.Time:
|
||||
if data != nil {
|
||||
field.ReflectValueOf(ctx, value).Set(reflect.ValueOf(data).Elem())
|
||||
} else {
|
||||
field.ReflectValueOf(ctx, value).Set(reflect.ValueOf(time.Time{}))
|
||||
}
|
||||
case string:
|
||||
if t, err := now.Parse(data); err == nil {
|
||||
field.ReflectValueOf(ctx, value).Set(reflect.ValueOf(t))
|
||||
} else {
|
||||
return fmt.Errorf("failed to set string %v to time.Time field %s, failed to parse it as time, got error %v", v, field.Name, err)
|
||||
}
|
||||
default:
|
||||
return fallbackSetter(ctx, value, v, field.Set)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
case *time.Time:
|
||||
field.Set = func(ctx context.Context, value reflect.Value, v interface{}) error {
|
||||
switch data := v.(type) {
|
||||
case **time.Time:
|
||||
if data != nil && *data != nil {
|
||||
field.ReflectValueOf(ctx, value).Set(reflect.ValueOf(*data))
|
||||
}
|
||||
case time.Time:
|
||||
fieldValue := field.ReflectValueOf(ctx, value)
|
||||
if fieldValue.IsNil() {
|
||||
fieldValue.Set(reflect.New(field.FieldType.Elem()))
|
||||
}
|
||||
fieldValue.Elem().Set(reflect.ValueOf(v))
|
||||
case *time.Time:
|
||||
field.ReflectValueOf(ctx, value).Set(reflect.ValueOf(v))
|
||||
case string:
|
||||
if t, err := now.Parse(data); err == nil {
|
||||
fieldValue := field.ReflectValueOf(ctx, value)
|
||||
if fieldValue.IsNil() {
|
||||
if v == "" {
|
||||
return nil
|
||||
}
|
||||
fieldValue.Set(reflect.New(field.FieldType.Elem()))
|
||||
}
|
||||
fieldValue.Elem().Set(reflect.ValueOf(t))
|
||||
} else {
|
||||
return fmt.Errorf("failed to set string %v to time.Time field %s, failed to parse it as time, got error %v", v, field.Name, err)
|
||||
}
|
||||
default:
|
||||
return fallbackSetter(ctx, value, v, field.Set)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
default:
|
||||
if _, ok := fieldValue.Elem().Interface().(sql.Scanner); ok {
|
||||
// pointer scanner
|
||||
field.Set = func(ctx context.Context, value reflect.Value, v interface{}) (err error) {
|
||||
reflectV := reflect.ValueOf(v)
|
||||
if !reflectV.IsValid() {
|
||||
field.ReflectValueOf(ctx, value).Set(reflect.New(field.FieldType).Elem())
|
||||
} else if reflectV.Kind() == reflect.Ptr && reflectV.IsNil() {
|
||||
return
|
||||
} else if reflectV.Type().AssignableTo(field.FieldType) {
|
||||
field.ReflectValueOf(ctx, value).Set(reflectV)
|
||||
} else if reflectV.Kind() == reflect.Ptr {
|
||||
return field.Set(ctx, value, reflectV.Elem().Interface())
|
||||
} else {
|
||||
fieldValue := field.ReflectValueOf(ctx, value)
|
||||
if fieldValue.IsNil() {
|
||||
fieldValue.Set(reflect.New(field.FieldType.Elem()))
|
||||
}
|
||||
|
||||
if valuer, ok := v.(driver.Valuer); ok {
|
||||
v, _ = valuer.Value()
|
||||
}
|
||||
|
||||
err = fieldValue.Interface().(sql.Scanner).Scan(v)
|
||||
}
|
||||
return
|
||||
}
|
||||
} else if _, ok := fieldValue.Interface().(sql.Scanner); ok {
|
||||
// struct scanner
|
||||
field.Set = func(ctx context.Context, value reflect.Value, v interface{}) (err error) {
|
||||
reflectV := reflect.ValueOf(v)
|
||||
if !reflectV.IsValid() {
|
||||
field.ReflectValueOf(ctx, value).Set(reflect.New(field.FieldType).Elem())
|
||||
} else if reflectV.Kind() == reflect.Ptr && reflectV.IsNil() {
|
||||
return
|
||||
} else if reflectV.Type().AssignableTo(field.FieldType) {
|
||||
field.ReflectValueOf(ctx, value).Set(reflectV)
|
||||
} else if reflectV.Kind() == reflect.Ptr {
|
||||
return field.Set(ctx, value, reflectV.Elem().Interface())
|
||||
} else {
|
||||
if valuer, ok := v.(driver.Valuer); ok {
|
||||
v, _ = valuer.Value()
|
||||
}
|
||||
|
||||
err = field.ReflectValueOf(ctx, value).Addr().Interface().(sql.Scanner).Scan(v)
|
||||
}
|
||||
return
|
||||
}
|
||||
} else {
|
||||
field.Set = func(ctx context.Context, value reflect.Value, v interface{}) (err error) {
|
||||
return fallbackSetter(ctx, value, v, field.Set)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if field.Serializer != nil {
|
||||
var (
|
||||
oldFieldSetter = field.Set
|
||||
sameElemType bool
|
||||
sameType = field.FieldType == reflect.ValueOf(field.Serializer).Type()
|
||||
)
|
||||
|
||||
if reflect.ValueOf(field.Serializer).Kind() == reflect.Ptr {
|
||||
sameElemType = field.FieldType == reflect.ValueOf(field.Serializer).Type().Elem()
|
||||
}
|
||||
|
||||
serializerValue := reflect.Indirect(reflect.ValueOf(field.Serializer))
|
||||
serializerType := serializerValue.Type()
|
||||
field.Set = func(ctx context.Context, value reflect.Value, v interface{}) (err error) {
|
||||
if s, ok := v.(*serializer); ok {
|
||||
if s.fieldValue != nil {
|
||||
err = oldFieldSetter(ctx, value, s.fieldValue)
|
||||
} else if err = s.Serializer.Scan(ctx, field, value, s.value); err == nil {
|
||||
if sameElemType {
|
||||
field.ReflectValueOf(ctx, value).Set(reflect.ValueOf(s.Serializer).Elem())
|
||||
} else if sameType {
|
||||
field.ReflectValueOf(ctx, value).Set(reflect.ValueOf(s.Serializer))
|
||||
}
|
||||
si := reflect.New(serializerType)
|
||||
si.Elem().Set(serializerValue)
|
||||
s.Serializer = si.Interface().(SerializerInterface)
|
||||
}
|
||||
} else {
|
||||
err = oldFieldSetter(ctx, value, v)
|
||||
}
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (field *Field) setupNewValuePool() {
|
||||
if field.Serializer != nil {
|
||||
serializerValue := reflect.Indirect(reflect.ValueOf(field.Serializer))
|
||||
serializerType := serializerValue.Type()
|
||||
field.NewValuePool = &sync.Pool{
|
||||
New: func() interface{} {
|
||||
si := reflect.New(serializerType)
|
||||
si.Elem().Set(serializerValue)
|
||||
return &serializer{
|
||||
Field: field,
|
||||
Serializer: si.Interface().(SerializerInterface),
|
||||
}
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
if field.NewValuePool == nil {
|
||||
field.NewValuePool = poolInitializer(reflect.PtrTo(field.IndirectFieldType))
|
||||
}
|
||||
}
|
||||
// Additional utility functions can be added as needed to maintain DRY and simplify the code.
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user