mirror of
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552 lines
10 KiB
Go
552 lines
10 KiB
Go
package orm
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import (
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"errors"
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"fmt"
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"strconv"
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"time"
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)
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const (
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// bool
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TypeBooleanField = 1 << iota
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// string
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TypeCharField
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// string
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TypeTextField
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// time.Time
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TypeDateField
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// time.Time
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TypeDateTimeField
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// int8
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TypeBitField
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// int16
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TypeSmallIntegerField
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// int32
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TypeIntegerField
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// int64
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TypeBigIntegerField
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// uint8
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TypePositiveBitField
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// uint16
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TypePositiveSmallIntegerField
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// uint32
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TypePositiveIntegerField
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// uint64
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TypePositiveBigIntegerField
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// float64
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TypeFloatField
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// float64
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TypeDecimalField
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RelForeignKey
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RelOneToOne
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RelManyToMany
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RelReverseOne
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RelReverseMany
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)
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const (
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IsIntegerField = ^-TypePositiveBigIntegerField >> 4 << 5
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IsPostiveIntegerField = ^-TypePositiveBigIntegerField >> 8 << 9
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IsRelField = ^-RelReverseMany >> 14 << 15
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IsFieldType = ^-RelReverseMany<<1 + 1
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)
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// A true/false field.
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type BooleanField bool
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func (e BooleanField) Value() bool {
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return bool(e)
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}
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func (e *BooleanField) Set(d bool) {
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*e = BooleanField(d)
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}
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func (e *BooleanField) String() string {
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return strconv.FormatBool(e.Value())
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}
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func (e *BooleanField) FieldType() int {
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return TypeBooleanField
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}
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func (e *BooleanField) SetRaw(value interface{}) error {
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switch d := value.(type) {
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case bool:
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e.Set(d)
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case string:
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v, err := StrTo(d).Bool()
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if err != nil {
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e.Set(v)
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}
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return err
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default:
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return errors.New(fmt.Sprintf("<BooleanField.SetRaw> unknown value `%s`", value))
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}
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return nil
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}
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func (e *BooleanField) RawValue() interface{} {
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return e.Value()
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}
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var _ Fielder = new(BooleanField)
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// A string field
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// required values tag: size
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// The size is enforced at the database level and in models’s validation.
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// eg: `orm:"size(120)"`
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type CharField string
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func (e CharField) Value() string {
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return string(e)
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}
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func (e *CharField) Set(d string) {
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*e = CharField(d)
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}
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func (e *CharField) String() string {
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return e.Value()
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}
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func (e *CharField) FieldType() int {
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return TypeCharField
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}
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func (e *CharField) SetRaw(value interface{}) error {
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switch d := value.(type) {
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case string:
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e.Set(d)
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default:
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return errors.New(fmt.Sprintf("<CharField.SetRaw> unknown value `%s`", value))
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}
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return nil
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}
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func (e *CharField) RawValue() interface{} {
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return e.Value()
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}
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var _ Fielder = new(CharField)
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// A date, represented in go by a time.Time instance.
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// only date values like 2006-01-02
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// Has a few extra, optional attr tag:
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//
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// auto_now:
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// Automatically set the field to now every time the object is saved. Useful for “last-modified” timestamps.
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// Note that the current date is always used; it’s not just a default value that you can override.
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//
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// auto_now_add:
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// Automatically set the field to now when the object is first created. Useful for creation of timestamps.
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// Note that the current date is always used; it’s not just a default value that you can override.
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//
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// eg: `orm:"auto_now"` or `orm:"auto_now_add"`
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type DateField time.Time
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func (e DateField) Value() time.Time {
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return time.Time(e)
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}
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func (e *DateField) Set(d time.Time) {
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*e = DateField(d)
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}
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func (e *DateField) String() string {
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return e.Value().String()
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}
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func (e *DateField) FieldType() int {
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return TypeDateField
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}
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func (e *DateField) SetRaw(value interface{}) error {
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switch d := value.(type) {
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case time.Time:
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e.Set(d)
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case string:
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v, err := timeParse(d, format_Date)
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if err != nil {
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e.Set(v)
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}
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return err
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default:
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return errors.New(fmt.Sprintf("<DateField.SetRaw> unknown value `%s`", value))
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}
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return nil
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}
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func (e *DateField) RawValue() interface{} {
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return e.Value()
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}
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var _ Fielder = new(DateField)
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// A date, represented in go by a time.Time instance.
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// datetime values like 2006-01-02 15:04:05
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// Takes the same extra arguments as DateField.
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type DateTimeField time.Time
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func (e DateTimeField) Value() time.Time {
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return time.Time(e)
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}
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func (e *DateTimeField) Set(d time.Time) {
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*e = DateTimeField(d)
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}
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func (e *DateTimeField) String() string {
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return e.Value().String()
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}
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func (e *DateTimeField) FieldType() int {
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return TypeDateTimeField
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}
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func (e *DateTimeField) SetRaw(value interface{}) error {
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switch d := value.(type) {
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case time.Time:
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e.Set(d)
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case string:
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v, err := timeParse(d, format_DateTime)
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if err != nil {
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e.Set(v)
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}
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return err
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default:
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return errors.New(fmt.Sprintf("<DateTimeField.SetRaw> unknown value `%s`", value))
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}
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return nil
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}
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func (e *DateTimeField) RawValue() interface{} {
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return e.Value()
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}
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var _ Fielder = new(DateTimeField)
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// A floating-point number represented in go by a float32 value.
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type FloatField float64
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func (e FloatField) Value() float64 {
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return float64(e)
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}
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func (e *FloatField) Set(d float64) {
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*e = FloatField(d)
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}
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func (e *FloatField) String() string {
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return ToStr(e.Value(), -1, 32)
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}
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func (e *FloatField) FieldType() int {
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return TypeFloatField
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}
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func (e *FloatField) SetRaw(value interface{}) error {
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switch d := value.(type) {
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case float32:
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e.Set(float64(d))
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case float64:
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e.Set(d)
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case string:
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v, err := StrTo(d).Float64()
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if err != nil {
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e.Set(v)
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}
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default:
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return errors.New(fmt.Sprintf("<FloatField.SetRaw> unknown value `%s`", value))
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}
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return nil
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}
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func (e *FloatField) RawValue() interface{} {
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return e.Value()
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}
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var _ Fielder = new(FloatField)
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// -32768 to 32767
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type SmallIntegerField int16
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func (e SmallIntegerField) Value() int16 {
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return int16(e)
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}
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func (e *SmallIntegerField) Set(d int16) {
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*e = SmallIntegerField(d)
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}
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func (e *SmallIntegerField) String() string {
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return ToStr(e.Value())
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}
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func (e *SmallIntegerField) FieldType() int {
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return TypeSmallIntegerField
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}
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func (e *SmallIntegerField) SetRaw(value interface{}) error {
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switch d := value.(type) {
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case int16:
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e.Set(d)
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case string:
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v, err := StrTo(d).Int16()
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if err != nil {
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e.Set(v)
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}
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default:
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return errors.New(fmt.Sprintf("<SmallIntegerField.SetRaw> unknown value `%s`", value))
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}
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return nil
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}
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func (e *SmallIntegerField) RawValue() interface{} {
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return e.Value()
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}
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var _ Fielder = new(SmallIntegerField)
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// -2147483648 to 2147483647
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type IntegerField int32
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func (e IntegerField) Value() int32 {
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return int32(e)
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}
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func (e *IntegerField) Set(d int32) {
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*e = IntegerField(d)
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}
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func (e *IntegerField) String() string {
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return ToStr(e.Value())
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}
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func (e *IntegerField) FieldType() int {
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return TypeIntegerField
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}
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func (e *IntegerField) SetRaw(value interface{}) error {
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switch d := value.(type) {
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case int32:
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e.Set(d)
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case string:
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v, err := StrTo(d).Int32()
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if err != nil {
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e.Set(v)
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}
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default:
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return errors.New(fmt.Sprintf("<IntegerField.SetRaw> unknown value `%s`", value))
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}
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return nil
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}
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func (e *IntegerField) RawValue() interface{} {
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return e.Value()
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}
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var _ Fielder = new(IntegerField)
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// -9223372036854775808 to 9223372036854775807.
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type BigIntegerField int64
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func (e BigIntegerField) Value() int64 {
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return int64(e)
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}
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func (e *BigIntegerField) Set(d int64) {
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*e = BigIntegerField(d)
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}
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func (e *BigIntegerField) String() string {
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return ToStr(e.Value())
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}
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func (e *BigIntegerField) FieldType() int {
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return TypeBigIntegerField
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}
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func (e *BigIntegerField) SetRaw(value interface{}) error {
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switch d := value.(type) {
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case int64:
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e.Set(d)
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case string:
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v, err := StrTo(d).Int64()
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if err != nil {
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e.Set(v)
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}
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default:
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return errors.New(fmt.Sprintf("<BigIntegerField.SetRaw> unknown value `%s`", value))
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}
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return nil
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}
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func (e *BigIntegerField) RawValue() interface{} {
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return e.Value()
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}
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var _ Fielder = new(BigIntegerField)
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// 0 to 65535
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type PositiveSmallIntegerField uint16
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func (e PositiveSmallIntegerField) Value() uint16 {
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return uint16(e)
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}
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func (e *PositiveSmallIntegerField) Set(d uint16) {
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*e = PositiveSmallIntegerField(d)
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}
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func (e *PositiveSmallIntegerField) String() string {
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return ToStr(e.Value())
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}
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func (e *PositiveSmallIntegerField) FieldType() int {
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return TypePositiveSmallIntegerField
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}
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func (e *PositiveSmallIntegerField) SetRaw(value interface{}) error {
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switch d := value.(type) {
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case uint16:
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e.Set(d)
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case string:
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v, err := StrTo(d).Uint16()
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if err != nil {
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e.Set(v)
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}
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default:
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return errors.New(fmt.Sprintf("<PositiveSmallIntegerField.SetRaw> unknown value `%s`", value))
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}
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return nil
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}
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func (e *PositiveSmallIntegerField) RawValue() interface{} {
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return e.Value()
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}
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var _ Fielder = new(PositiveSmallIntegerField)
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// 0 to 4294967295
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type PositiveIntegerField uint32
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func (e PositiveIntegerField) Value() uint32 {
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return uint32(e)
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}
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func (e *PositiveIntegerField) Set(d uint32) {
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*e = PositiveIntegerField(d)
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}
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func (e *PositiveIntegerField) String() string {
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return ToStr(e.Value())
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}
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func (e *PositiveIntegerField) FieldType() int {
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return TypePositiveIntegerField
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}
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func (e *PositiveIntegerField) SetRaw(value interface{}) error {
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switch d := value.(type) {
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case uint32:
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e.Set(d)
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case string:
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v, err := StrTo(d).Uint32()
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if err != nil {
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e.Set(v)
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}
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default:
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return errors.New(fmt.Sprintf("<PositiveIntegerField.SetRaw> unknown value `%s`", value))
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}
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return nil
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}
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func (e *PositiveIntegerField) RawValue() interface{} {
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return e.Value()
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}
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var _ Fielder = new(PositiveIntegerField)
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// 0 to 18446744073709551615
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type PositiveBigIntegerField uint64
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func (e PositiveBigIntegerField) Value() uint64 {
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return uint64(e)
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}
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func (e *PositiveBigIntegerField) Set(d uint64) {
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*e = PositiveBigIntegerField(d)
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}
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func (e *PositiveBigIntegerField) String() string {
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return ToStr(e.Value())
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}
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func (e *PositiveBigIntegerField) FieldType() int {
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return TypePositiveIntegerField
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}
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func (e *PositiveBigIntegerField) SetRaw(value interface{}) error {
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switch d := value.(type) {
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case uint64:
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e.Set(d)
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case string:
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v, err := StrTo(d).Uint64()
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if err != nil {
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e.Set(v)
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}
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default:
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return errors.New(fmt.Sprintf("<PositiveBigIntegerField.SetRaw> unknown value `%s`", value))
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}
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return nil
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}
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func (e *PositiveBigIntegerField) RawValue() interface{} {
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return e.Value()
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}
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var _ Fielder = new(PositiveBigIntegerField)
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// A large text field.
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type TextField string
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func (e TextField) Value() string {
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return string(e)
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}
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func (e *TextField) Set(d string) {
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*e = TextField(d)
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}
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func (e *TextField) String() string {
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return e.Value()
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}
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func (e *TextField) FieldType() int {
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return TypeTextField
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}
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func (e *TextField) SetRaw(value interface{}) error {
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switch d := value.(type) {
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case string:
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e.Set(d)
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default:
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return errors.New(fmt.Sprintf("<TextField.SetRaw> unknown value `%s`", value))
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}
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return nil
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}
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func (e *TextField) RawValue() interface{} {
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return e.Value()
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}
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var _ Fielder = new(TextField)
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