146 lines
3.1 KiB
Go
146 lines
3.1 KiB
Go
package orm
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import (
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"fmt"
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"reflect"
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"strings"
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"time"
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)
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func getFullName(typ reflect.Type) string {
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return typ.PkgPath() + "." + typ.Name()
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}
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func getTableName(val reflect.Value) string {
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ind := reflect.Indirect(val)
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fun := val.MethodByName("TableName")
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if fun.IsValid() {
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vals := fun.Call([]reflect.Value{})
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if len(vals) > 0 {
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val := vals[0]
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if val.Kind() == reflect.String {
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return val.String()
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}
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}
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}
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return snakeString(ind.Type().Name())
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}
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func getTableEngine(val reflect.Value) string {
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fun := val.MethodByName("TableEngine")
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if fun.IsValid() {
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vals := fun.Call([]reflect.Value{})
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if len(vals) > 0 {
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val := vals[0]
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if val.Kind() == reflect.String {
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return val.String()
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}
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}
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}
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return ""
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}
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func getTableIndex(val reflect.Value) [][]string {
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fun := val.MethodByName("TableIndex")
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if fun.IsValid() {
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vals := fun.Call([]reflect.Value{})
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if len(vals) > 0 {
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val := vals[0]
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if val.CanInterface() {
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if d, ok := val.Interface().([][]string); ok {
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return d
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}
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}
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}
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}
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return nil
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}
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func getTableUnique(val reflect.Value) [][]string {
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fun := val.MethodByName("TableUnique")
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if fun.IsValid() {
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vals := fun.Call([]reflect.Value{})
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if len(vals) > 0 {
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val := vals[0]
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if val.CanInterface() {
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if d, ok := val.Interface().([][]string); ok {
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return d
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}
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}
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}
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}
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return nil
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}
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func getColumnName(ft int, addrField reflect.Value, sf reflect.StructField, col string) string {
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column := strings.ToLower(col)
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if column == "" {
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column = snakeString(sf.Name)
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}
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switch ft {
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case RelForeignKey, RelOneToOne:
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column = column + "_id"
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case RelManyToMany, RelReverseMany, RelReverseOne:
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column = sf.Name
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}
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return column
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}
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func getFieldType(val reflect.Value) (ft int, err error) {
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elm := reflect.Indirect(val)
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switch elm.Kind() {
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case reflect.Int8:
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ft = TypeBitField
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case reflect.Int16:
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ft = TypeSmallIntegerField
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case reflect.Int32, reflect.Int:
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ft = TypeIntegerField
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case reflect.Int64:
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ft = TypeBigIntegerField
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case reflect.Uint8:
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ft = TypePositiveBitField
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case reflect.Uint16:
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ft = TypePositiveSmallIntegerField
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case reflect.Uint32, reflect.Uint:
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ft = TypePositiveIntegerField
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case reflect.Uint64:
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ft = TypePositiveBigIntegerField
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case reflect.Float32, reflect.Float64:
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ft = TypeFloatField
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case reflect.Bool:
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ft = TypeBooleanField
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case reflect.String:
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ft = TypeCharField
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case reflect.Invalid:
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default:
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if elm.CanInterface() {
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if _, ok := elm.Interface().(time.Time); ok {
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ft = TypeDateTimeField
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}
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}
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}
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if ft&IsFieldType == 0 {
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err = fmt.Errorf("unsupport field type %s, may be miss setting tag", val)
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}
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return
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}
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func parseStructTag(data string, attrs *map[string]bool, tags *map[string]string) {
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attr := make(map[string]bool)
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tag := make(map[string]string)
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for _, v := range strings.Split(data, defaultStructTagDelim) {
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v = strings.TrimSpace(v)
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if supportTag[v] == 1 {
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attr[v] = true
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} else if i := strings.Index(v, "("); i > 0 && strings.Index(v, ")") == len(v)-1 {
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name := v[:i]
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if supportTag[name] == 2 {
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v = v[i+1 : len(v)-1]
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tag[name] = v
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}
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}
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}
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*attrs = attr
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*tags = tag
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}
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