gorm/utils.go

83 lines
1.6 KiB
Go

package gorm
import (
"bytes"
"fmt"
"reflect"
"regexp"
"strings"
)
func modelValues(m interface{}) (columns []string, values []interface{}) {
typ := reflect.TypeOf(m).Elem()
for i := 0; i < typ.NumField(); i++ {
p := typ.Field(i)
if !p.Anonymous {
columns = append(columns, toSnake(p.Name))
value := reflect.ValueOf(m).Elem().FieldByName(p.Name)
values = append(values, value.Interface())
}
}
return
}
func valuesToBinVar(values []interface{}) string {
var sqls []string
for index, _ := range values {
sqls = append(sqls, fmt.Sprintf("$%d", index+1))
}
return strings.Join(sqls, ",")
}
func quoteMap(values []string) (results []string) {
for _, value := range values {
results = append(results, "\""+value+"\"")
}
return
}
func toSnake(s string) string {
buf := bytes.NewBufferString("")
for i, v := range s {
if i > 0 && v >= 'A' && v <= 'Z' {
buf.WriteRune('_')
}
buf.WriteRune(v)
}
return strings.ToLower(buf.String())
}
func snakeToUpperCamel(s string) string {
buf := bytes.NewBufferString("")
for _, v := range strings.Split(s, "_") {
if len(v) > 0 {
buf.WriteString(strings.ToUpper(v[:1]))
buf.WriteString(v[1:])
}
}
return buf.String()
}
func interfaceToTableName(f interface{}) string {
t := reflect.TypeOf(f)
for {
c := false
switch t.Kind() {
case reflect.Array, reflect.Chan, reflect.Map, reflect.Ptr, reflect.Slice:
t = t.Elem()
c = true
}
if !c {
break
}
}
reg, _ := regexp.Compile("s*$")
return reg.ReplaceAllString(toSnake(t.Name()), "s")
}
func debug(value interface{}) {
fmt.Printf("***************\n")
fmt.Printf("%+v\n\n", value)
}