997 lines
32 KiB
Go
997 lines
32 KiB
Go
package schema
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import (
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"context"
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"database/sql"
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"database/sql/driver"
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"fmt"
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"reflect"
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"strconv"
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"strings"
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"sync"
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"time"
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"github.com/jinzhu/now"
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"gorm.io/gorm/clause"
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"gorm.io/gorm/utils"
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)
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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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ByteReflectType = reflect.TypeOf(uint8(0))
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)
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type (
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// DataType GORM data type
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DataType string
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// TimeType GORM time type
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TimeType int64
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)
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// GORM time types
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const (
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UnixTime TimeType = 1
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UnixSecond TimeType = 2
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UnixMillisecond TimeType = 3
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UnixNanosecond TimeType = 4
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)
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// GORM fields types
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const (
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Bool DataType = "bool"
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Int DataType = "int"
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Uint DataType = "uint"
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Float DataType = "float"
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String DataType = "string"
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Time DataType = "time"
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Bytes DataType = "bytes"
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)
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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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type Field struct {
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Name string
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DBName string
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BindNames []string
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DataType DataType
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GORMDataType DataType
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PrimaryKey bool
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AutoIncrement bool
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AutoIncrementIncrement int64
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Creatable bool
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Updatable bool
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Readable bool
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AutoCreateTime TimeType
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AutoUpdateTime TimeType
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HasDefaultValue bool
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DefaultValue string
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DefaultValueInterface interface{}
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NotNull bool
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Unique bool
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Comment string
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Size int
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Precision int
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Scale int
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IgnoreMigration bool
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FieldType reflect.Type
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IndirectFieldType reflect.Type
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StructField reflect.StructField
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Tag reflect.StructTag
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TagSettings map[string]string
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Schema *Schema
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EmbeddedSchema *Schema
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OwnerSchema *Schema
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ReflectValueOf func(context.Context, reflect.Value) reflect.Value
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ValueOf func(context.Context, reflect.Value) (value interface{}, zero bool)
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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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}
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func (field *Field) BindName() string {
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return strings.Join(field.BindNames, ".")
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}
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// ParseField parses reflect.StructField to Field
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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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field := &Field{
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Name: fieldStruct.Name,
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DBName: tagSetting["COLUMN"],
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BindNames: []string{fieldStruct.Name},
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FieldType: fieldStruct.Type,
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IndirectFieldType: fieldStruct.Type,
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StructField: fieldStruct,
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Tag: fieldStruct.Tag,
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TagSettings: tagSetting,
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Schema: schema,
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Creatable: true,
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Updatable: true,
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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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for field.IndirectFieldType.Kind() == reflect.Ptr {
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field.IndirectFieldType = field.IndirectFieldType.Elem()
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}
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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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// 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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}
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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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if num, ok := field.TagSettings["SIZE"]; ok {
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if field.Size, err = strconv.Atoi(num); err != nil {
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field.Size = -1
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}
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}
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if p, ok := field.TagSettings["PRECISION"]; ok {
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field.Precision, _ = strconv.Atoi(p)
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}
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if s, ok := field.TagSettings["SCALE"]; ok {
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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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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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}
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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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}
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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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}
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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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}
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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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}
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case reflect.Struct:
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if _, ok := fieldValue.Interface().(*time.Time); ok {
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field.DataType = Time
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} else if fieldValue.Type().ConvertibleTo(TimeReflectType) {
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field.DataType = Time
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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 t, err := now.Parse(field.DefaultValue); err == nil {
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field.DefaultValueInterface = t
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}
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}
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case reflect.Array, reflect.Slice:
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if reflect.Indirect(fieldValue).Type().Elem() == ByteReflectType && field.DataType == "" {
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field.DataType = Bytes
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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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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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}
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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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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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case "-":
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field.Creatable = false
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field.Updatable = false
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field.Readable = false
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field.DataType = ""
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case "all":
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field.Creatable = false
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field.Updatable = false
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field.Readable = false
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field.DataType = ""
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field.IgnoreMigration = true
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case "migration":
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field.IgnoreMigration = true
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}
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}
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if v, ok := field.TagSettings["->"]; ok {
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field.Creatable = false
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field.Updatable = false
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if strings.ToLower(v) == "false" {
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field.Readable = false
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} else {
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field.Readable = true
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}
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}
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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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// 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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switch kind {
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case reflect.Struct:
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var err error
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field.Creatable = false
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field.Updatable = false
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field.Readable = false
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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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schema.err = err
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}
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for _, ef := range field.EmbeddedSchema.Fields {
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ef.Schema = schema
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ef.OwnerSchema = field.EmbeddedSchema
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ef.BindNames = append([]string{fieldStruct.Name}, ef.BindNames...)
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// index is negative means is pointer
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if field.FieldType.Kind() == reflect.Struct {
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ef.StructField.Index = append([]int{fieldStruct.Index[0]}, ef.StructField.Index...)
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} else {
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ef.StructField.Index = append([]int{-fieldStruct.Index[0] - 1}, ef.StructField.Index...)
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}
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if prefix, ok := field.TagSettings["EMBEDDEDPREFIX"]; ok && ef.DBName != "" {
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ef.DBName = prefix + ef.DBName
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}
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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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}
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}
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for k, v := range field.TagSettings {
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ef.TagSettings[k] = v
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}
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}
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case reflect.Invalid, reflect.Uintptr, reflect.Array, reflect.Chan, reflect.Func, reflect.Interface,
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reflect.Map, reflect.Ptr, reflect.Slice, reflect.UnsafePointer, reflect.Complex64, reflect.Complex128:
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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() {
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// Setup NewValuePool
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field.setupNewValuePool()
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// ValueOf returns field's value and if it is zero
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fieldIndex := field.StructField.Index[0]
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switch {
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case len(field.StructField.Index) == 1 && fieldIndex > 0:
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field.ValueOf = func(ctx context.Context, value reflect.Value) (interface{}, bool) {
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fieldValue := reflect.Indirect(value).Field(fieldIndex)
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return fieldValue.Interface(), fieldValue.IsZero()
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}
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default:
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field.ValueOf = func(ctx context.Context, v reflect.Value) (interface{}, bool) {
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v = reflect.Indirect(v)
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for _, fieldIdx := range field.StructField.Index {
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if fieldIdx >= 0 {
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v = v.Field(fieldIdx)
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} else {
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v = v.Field(-fieldIdx - 1)
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if !v.IsNil() {
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v = v.Elem()
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} else {
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return nil, true
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}
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}
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}
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fv, zero := v.Interface(), v.IsZero()
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return fv, zero
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}
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}
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if field.Serializer != nil {
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oldValuerOf := field.ValueOf
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field.ValueOf = func(ctx context.Context, v reflect.Value) (interface{}, bool) {
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value, zero := oldValuerOf(ctx, v)
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s, ok := value.(SerializerValuerInterface)
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if !ok {
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s = field.Serializer
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}
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return &serializer{
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Field: field,
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SerializeValuer: s,
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Destination: v,
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Context: ctx,
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fieldValue: value,
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}, zero
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}
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}
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// ReflectValueOf returns field's reflect value
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switch {
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case len(field.StructField.Index) == 1 && fieldIndex > 0:
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field.ReflectValueOf = func(ctx context.Context, value reflect.Value) reflect.Value {
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return reflect.Indirect(value).Field(fieldIndex)
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}
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default:
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field.ReflectValueOf = func(ctx context.Context, v reflect.Value) reflect.Value {
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v = reflect.Indirect(v)
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for idx, fieldIdx := range field.StructField.Index {
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if fieldIdx >= 0 {
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v = v.Field(fieldIdx)
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} else {
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v = v.Field(-fieldIdx - 1)
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if v.IsNil() {
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v.Set(reflect.New(v.Type().Elem()))
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}
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|
|
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.UnixNano() / 1e6)
|
|
} 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.UnixNano() / 1e6)
|
|
} 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.UnixNano() / 1e6))
|
|
} 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))
|
|
}
|
|
}
|