gorm/field.go

68 lines
1.3 KiB
Go

package gorm
import (
"database/sql"
"reflect"
"strconv"
"strings"
"time"
)
type Field struct {
Name string
DBName string
Value interface{}
IsBlank bool
IsIgnored bool
Tag reflect.StructTag
SqlTag string
ForeignKey string
BeforeAssociation bool
AfterAssociation bool
isPrimaryKey bool
}
func (f *Field) IsScanner() bool {
_, is_scanner := reflect.New(reflect.ValueOf(f.Value).Type()).Interface().(sql.Scanner)
return is_scanner
}
func (f *Field) IsTime() bool {
_, is_time := f.Value.(time.Time)
return is_time
}
func parseSqlTag(str string) (typ string, addational_typ string, size int) {
if str == "-" {
typ = str
} else if str != "" {
tags := strings.Split(str, ";")
m := make(map[string]string)
for _, value := range tags {
v := strings.Split(value, ":")
k := strings.TrimSpace(strings.ToUpper(v[0]))
if len(v) == 2 {
m[k] = v[1]
} else {
m[k] = k
}
}
if len(m["SIZE"]) > 0 {
size, _ = strconv.Atoi(m["SIZE"])
}
if len(m["TYPE"]) > 0 {
typ = m["TYPE"]
}
addational_typ = m["NOT NULL"] + " " + m["UNIQUE"]
if len(m["DEFAULT"]) > 0 {
addational_typ = addational_typ + "DEFAULT " + m["DEFAULT"]
}
}
return
}