carbon/database.go

141 lines
3.9 KiB
Go
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package carbon
import (
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"database/sql/driver"
"errors"
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"fmt"
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"time"
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)
// returns a failed scan error.
// 失败的扫描错误
var failedScanError = func(src interface{}) error {
return errors.New(fmt.Sprintf("failed to scan value: %v", src))
}
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// Scan an interface used by Scan in package database/sql for Scanning value from database to local golang variable.
func (c *Carbon) Scan(src interface{}) error {
switch v := src.(type) {
case []byte:
*c = Parse(string(v))
case string:
*c = Parse(v)
case time.Time:
*c = CreateFromStdTime(v)
}
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if c.Error == nil {
return nil
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}
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return failedScanError(src)
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}
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// Value the interface providing the Value method for package database/sql/driver.
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func (c Carbon) Value() (driver.Value, error) {
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if c.IsZero() {
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return nil, nil
}
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return c.StdTime(), nil
}
// GormDataType implements the interface GormDataTypeInterface for Carbon struct.
// 实现 GormDataTypeInterface 接口
func (c Carbon) GormDataType() string {
return "time"
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}
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// GormDataType implements the interface GormDataTypeInterface for DateTime struct.
// 实现 GormDataTypeInterface 接口
func (t DateTime) GormDataType() string {
return "time"
}
// GormDataType implements the interface GormDataTypeInterface for DateTimeMilli struct.
// 实现 GormDataTypeInterface 接口
func (t DateTimeMilli) GormDataType() string {
return "time"
}
// GormDataType implements the interface GormDataTypeInterface for DateTimeMicro struct.
// 实现 GormDataTypeInterface 接口
func (t DateTimeMicro) GormDataType() string {
return "time"
}
// GormDataType implements the interface GormDataTypeInterface for DateTimeNano struct.
// 实现 GormDataTypeInterface 接口
func (t DateTimeNano) GormDataType() string {
return "time"
}
// GormDataType implements the interface GormDataTypeInterface for Date struct.
// 实现 GormDataTypeInterface 接口
func (t Date) GormDataType() string {
return "time"
}
// GormDataType implements the interface GormDataTypeInterface for DateMilli struct.
// 实现 GormDataTypeInterface 接口
func (t DateMilli) GormDataType() string {
return "time"
}
// GormDataType implements the interface GormDataTypeInterface for DateMicro struct.
// 实现 GormDataTypeInterface 接口
func (t DateMicro) GormDataType() string {
return "time"
}
// GormDataType implements the interface GormDataTypeInterface for DateNano struct.
// 实现 GormDataTypeInterface 接口
func (t DateNano) GormDataType() string {
return "time"
}
// GormDataType implements the interface GormDataTypeInterface for Time struct.
// 实现 GormDataTypeInterface 接口
func (t Time) GormDataType() string {
return "time"
}
// GormDataType implements the interface GormDataTypeInterface for TimeMilli struct.
// 实现 GormDataTypeInterface 接口
func (t TimeMilli) GormDataType() string {
return "time"
}
// GormDataType implements the interface GormDataTypeInterface for TimeMicro struct.
// 实现 GormDataTypeInterface 接口
func (t TimeMicro) GormDataType() string {
return "time"
}
// GormDataType implements the interface GormDataTypeInterface for TimeNano struct.
// 实现 GormDataTypeInterface 接口
func (t TimeNano) GormDataType() string {
return "time"
}
// GormDataType implements the interface GormDataTypeInterface for Timestamp struct.
// 实现 GormDataTypeInterface 接口
func (t Timestamp) GormDataType() string {
return "int"
}
// GormDataType implements the interface GormDataTypeInterface for TimestampMilli struct.
// 实现 GormDataTypeInterface 接口
func (t TimestampMilli) GormDataType() string {
return "int"
}
// GormDataType implements the interface GormDataTypeInterface for TimestampMicro struct.
// 实现 GormDataTypeInterface 接口
func (t TimestampMicro) GormDataType() string {
return "int"
}
// GormDataType implements the interface GormDataTypeInterface for TimestampNano struct.
// 实现 GormDataTypeInterface 接口
func (t TimestampNano) GormDataType() string {
return "int"
}