first

model/custom_types/auto_json.go

@@ -0,0 +1,66 @@
+package custom_types
+
+import (
+	"database/sql/driver"
+	"encoding/json"
+	"errors"
+	"fmt"
+)
+
+// AutoJson 数据类型
+type AutoJson json.RawMessage
+
+func (j *AutoJson) Scan(value interface{}) error {
+
+	var strValue string
+	switch v := value.(type) {
+	case []byte:
+		strValue = string(v)
+	case string:
+		strValue = v
+	default:
+		return errors.New(fmt.Sprintf("Failed Scan AutoJson value: %v", value))
+	}
+	bytes := []byte(strValue)
+	//bytes, ok := value.([]byte)
+	//if !ok {
+	//	return errors.New(fmt.Sprint("Failed Scan AutoJson value:", value))
+	//}
+
+	if bytes == nil || len(bytes) == 0 {
+		*j = AutoJson(json.RawMessage{'[', ']'})
+		return nil
+	}
+	result := &json.RawMessage{}
+	err := json.Unmarshal(bytes, result)
+	//解析json错误 返回空
+	if err != nil {
+		*j = AutoJson(json.RawMessage{'[', ']'})
+		return nil
+	}
+	*j = AutoJson(*result)
+	return err
+}
+func (j AutoJson) Value() (driver.Value, error) {
+	bytes, err := json.RawMessage(j).MarshalJSON()
+	return string(bytes), err
+}
+func (j AutoJson) MarshalJSON() ([]byte, error) {
+	b, err := json.RawMessage(j).MarshalJSON()
+	if err != nil {
+		return nil, err
+	}
+	return b, err
+}
+
+func (j *AutoJson) UnmarshalJSON(b []byte) error {
+	result := json.RawMessage{}
+	err := result.UnmarshalJSON(b)
+	*j = AutoJson(result)
+	return err
+}
+
+func (j AutoJson) String() string {
+	s, _ := j.MarshalJSON()
+	return (string)(s)
+}

model/custom_types/auto_time.go

@@ -0,0 +1,24 @@
+package custom_types
+
+import (
+	"database/sql/driver"
+	"time"
+)
+
+// AutoTime 自定义时间格式
+type AutoTime time.Time
+
+func (mt AutoTime) Value() (driver.Value, error) {
+	var zeroTime time.Time
+	t := time.Time(mt)
+	if t.UnixNano() == zeroTime.UnixNano() {
+		return nil, nil
+	}
+	return t, nil
+}
+
+func (mt AutoTime) MarshalJSON() ([]byte, error) {
+	//b := make([]byte, 0, len("2006-01-02 15:04:05")+2)
+	b := time.Time(mt).AppendFormat([]byte{}, "\"2006-01-02 15:04:05\"")
+	return b, nil
+}