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types

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v5.2.0 Latest Latest Go to latest Published: Mar 14, 2024 License: MIT Imports: 9 Imported by: 2

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Repository

github.com/issue9/orm

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Documentation ¶

Overview ¶

Package types 提供部分存取数据库的类型

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Decimal ¶

type Decimal struct {
	Decimal   decimal.Decimal
	Precision int32
	Valid     bool
}

func FloatDecimal ¶

func FloatDecimal(f float64, precision int32) Decimal

FloatDecimal 从浮点数还原 Decimal 对象

precision 表示输出的精度。

func StringDecimal ¶

func StringDecimal(s string, precision int32) (Decimal, error)

StringDecimal 从字符串还原 Decimal 对象

precision 表示输出的精度。

func StringDecimalWithPrecision ¶

func StringDecimalWithPrecision(s string) (Decimal, error)

StringDecimalWithPrecision 从字符串还原 Decimal 对象

输出精度从 s 获取，如果 s 不包含小数位，则小数长度为 0

func (Decimal) MarshalJSON ¶

func (n Decimal) MarshalJSON() ([]byte, error)

func (Decimal) MarshalText ¶

func (n Decimal) MarshalText() ([]byte, error)

func (Decimal) PrimitiveType ¶

func (n Decimal) PrimitiveType() core.PrimitiveType

func (*Decimal) Scan ¶

func (n *Decimal) Scan(src any) (err error)

Scan implements the Scanner.Scan

func (*Decimal) UnmarshalJSON ¶

func (n *Decimal) UnmarshalJSON(data []byte) error

func (*Decimal) UnmarshalText ¶

func (n *Decimal) UnmarshalText(data []byte) error

func (Decimal) Value ¶

func (n Decimal) Value() (driver.Value, error)

type Rat ¶

type Rat struct {
	// contains filtered or unexported fields
}

Rat 有理数

这是对 math/big.Rat 的扩展，提供了 orm 需要的接口支持。

在数据库中以分数的形式保存至字符串类型的列，所以需要指定长度。

func Rational ¶

func Rational(a, b int64) Rat

func (Rat) IsNull ¶

func (n Rat) IsNull() bool

func (Rat) MarshalText ¶

func (n Rat) MarshalText() ([]byte, error)

func (Rat) PrimitiveType ¶

func (n Rat) PrimitiveType() core.PrimitiveType

func (Rat) Rat ¶

func (n Rat) Rat() *big.Rat

Rat 返回标准库中 math/big.Rat 的实例

func (*Rat) Scan ¶

func (n *Rat) Scan(src any) (err error)

Scan implements the sql.Scanner

func (*Rat) UnmarshalText ¶

func (n *Rat) UnmarshalText(data []byte) error

func (Rat) Value ¶

func (n Rat) Value() (driver.Value, error)

type SliceOf ¶

type SliceOf[T any] []T

SliceOf 针对数组存组方式

最终是以 json 的方式保存在数据库。

func (SliceOf[T]) PrimitiveType ¶

func (n SliceOf[T]) PrimitiveType() core.PrimitiveType

func (*SliceOf[T]) Scan ¶

func (n *SliceOf[T]) Scan(value any) (err error)

func (SliceOf[T]) Value ¶

func (n SliceOf[T]) Value() (driver.Value, error)

type Unix ¶

type Unix struct {
	time.Time
	Valid bool
}

Unix 以 unix 时间戳保存的 time.Time 数据格式

func (*Unix) FromTime ¶

func (n *Unix) FromTime(t time.Time)

FromTime 从 time.Time 转换而来

func (Unix) MarshalJSON ¶

func (n Unix) MarshalJSON() ([]byte, error)

func (Unix) MarshalText ¶

func (n Unix) MarshalText() ([]byte, error)

func (Unix) PrimitiveType ¶

func (n Unix) PrimitiveType() core.PrimitiveType

func (*Unix) Scan ¶

func (n *Unix) Scan(src any) (err error)

func (*Unix) UnmarshalJSON ¶

func (n *Unix) UnmarshalJSON(data []byte) error

func (*Unix) UnmarshalText ¶

func (n *Unix) UnmarshalText(data []byte) error

func (Unix) Value ¶

func (n Unix) Value() (driver.Value, error)

Source Files ¶

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