fix: sqlite driver cause time query

Author: Mecozea

internal/models/time_field.go

@@ -0,0 +1,93 @@
+package models
+
+import (
+	"database/sql/driver"
+	"encoding/json"
+	"fmt"
+	"time"
+)
+
+// NullTime 兼容SQLite的可空时间类型
+type NullTime struct {
+	Time  time.Time
+	Valid bool // Valid表示Time不是NULL
+}
+
+// Scan 实现sql.Scanner接口
+func (nt *NullTime) Scan(value interface{}) error {
+	if value == nil {
+		nt.Time, nt.Valid = time.Time{}, false
+		return nil
+	}
+
+	switch v := value.(type) {
+	case time.Time:
+		nt.Time, nt.Valid = v, true
+		return nil
+	case string:
+		if v == "" {
+			nt.Time, nt.Valid = time.Time{}, false
+			return nil
+		}
+		// 尝试多种时间格式
+		formats := []string{
+			time.RFC3339,
+			time.RFC3339Nano,
+			"2006-01-02 15:04:05",
+			"2006-01-02T15:04:05",
+			"2006-01-02 15:04:05.000000",
+		}
+		for _, format := range formats {
+			if t, err := time.Parse(format, v); err == nil {
+				nt.Time, nt.Valid = t, true
+				return nil
+			}
+		}
+		return fmt.Errorf("无法解析时间字符串: %s", v)
+	case []byte:
+		return nt.Scan(string(v))
+	default:
+		return fmt.Errorf("无法将 %T 转换为 NullTime", value)
+	}
+}
+
+// Value 实现driver.Valuer接口
+func (nt NullTime) Value() (driver.Value, error) {
+	if !nt.Valid {
+		return nil, nil
+	}
+	return nt.Time.Format("2006-01-02 15:04:05"), nil
+}
+
+// Ptr 返回指向时间的指针，如果无效则返回nil
+func (nt *NullTime) Ptr() *time.Time {
+	if !nt.Valid {
+		return nil
+	}
+	return &nt.Time
+}
+
+// MarshalJSON 实现JSON序列化
+func (nt NullTime) MarshalJSON() ([]byte, error) {
+	if !nt.Valid {
+		return []byte("null"), nil
+	}
+	return json.Marshal(nt.Time)
+}
+
+// UnmarshalJSON 实现JSON反序列化
+func (nt *NullTime) UnmarshalJSON(data []byte) error {
+	if string(data) == "null" {
+		nt.Valid = false
+		return nil
+	}
+
+	var t time.Time
+	if err := json.Unmarshal(data, &t); err != nil {
+		return err
+	}
+
+	nt.Time = t
+	nt.Valid = true
+	return nil
+}