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FormatSql.go
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FormatSql.go
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// =================================================================
//
// Copyright (C) 2019 Spatial Current, Inc. - All Rights Reserved
// Released as open source under the MIT License. See LICENSE file.
//
// =================================================================
package dfl
import (
"fmt"
"reflect"
)
// FormatSQL formats an object as a SQL string
func FormatSql(value interface{}, pretty bool, tabs int) string {
t := reflect.TypeOf(value)
if t.Kind() == reflect.Array || t.Kind() == reflect.Slice {
v := reflect.ValueOf(value)
s := SqlArrayPrefix
l := v.Len()
if l > 0 {
for i := 0; i < l; i++ {
s += FormatSql(v.Index(i).Interface(), false, 0)
if i < l-1 {
s += ", "
}
}
}
s += SqlArraySuffix
return s
}
switch value := value.(type) {
case string:
return SqlQuote + value + SqlQuote
case map[string]struct{}:
// Just format sets as slices.
return FormatSql(StringSet(value).Slice(true), pretty, tabs)
case StringSet:
// Just format sets as slices.
return FormatSql(value.Slice(true), pretty, tabs)
case Null:
return value.Sql()
}
return fmt.Sprint(value)
}