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sql: add Native value to Type. #104

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merged 1 commit into from
Feb 10, 2017
Merged

sql: add Native value to Type. #104

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30 changes: 30 additions & 0 deletions sql/type.go
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
package sql

import (
"database/sql/driver"
"fmt"
"reflect"
"strconv"
Expand Down Expand Up @@ -43,6 +44,7 @@ type Type interface {
Check(interface{}) bool
Convert(interface{}) (interface{}, error)
Compare(interface{}, interface{}) int
Native(interface{}) driver.Value
}

var Null = nullType{}
Expand Down Expand Up @@ -75,6 +77,10 @@ func (t nullType) Compare(a interface{}, b interface{}) int {
return 0
}

func (t nullType) Native(v interface{}) driver.Value {
return driver.Value(nil)
}

var Integer = integerType{}

type integerType struct{}
Expand All @@ -99,6 +105,10 @@ func (t integerType) Compare(a interface{}, b interface{}) int {
return compareInt32(a, b)
}

func (t integerType) Native(v interface{}) driver.Value {
return driver.Value(int64(v.(int32)))
}

var BigInteger = bigIntegerType{}

type bigIntegerType struct{}
Expand All @@ -123,6 +133,10 @@ func (t bigIntegerType) Compare(a interface{}, b interface{}) int {
return compareInt64(a, b)
}

func (t bigIntegerType) Native(v interface{}) driver.Value {
return driver.Value(v.(int64))
}

// TimestampWithTimezone is a timestamp with timezone.
var TimestampWithTimezone = timestampWithTimeZoneType{}

Expand All @@ -148,6 +162,10 @@ func (t timestampWithTimeZoneType) Compare(a interface{}, b interface{}) int {
return compareTimestamp(a, b)
}

func (t timestampWithTimeZoneType) Native(v interface{}) driver.Value {
return driver.Value(v.(time.Time))
}

var String = stringType{}

type stringType struct{}
Expand All @@ -172,6 +190,10 @@ func (t stringType) Compare(a interface{}, b interface{}) int {
return compareString(a, b)
}

func (t stringType) Native(v interface{}) driver.Value {
return driver.Value(v.(string))
}

var Boolean Type = booleanType{}

type booleanType struct{}
Expand All @@ -196,6 +218,10 @@ func (t booleanType) Compare(a interface{}, b interface{}) int {
return compareBool(a, b)
}

func (t booleanType) Native(v interface{}) driver.Value {
return driver.Value(v.(bool))
}

var Float Type = floatType{}

type floatType struct{}
Expand All @@ -220,6 +246,10 @@ func (t floatType) Compare(a interface{}, b interface{}) int {
return compareFloat64(a, b)
}

func (t floatType) Native(v interface{}) driver.Value {
return driver.Value(v.(float64))
}

func checkString(v interface{}) bool {
_, ok := v.(string)
return ok
Expand Down