package orm import ( "fmt" "strconv" "strings" "time" ) type StrTo string func (f *StrTo) Set(v string) { if v != "" { *f = StrTo(v) } else { f.Clear() } } func (f *StrTo) Clear() { *f = StrTo(0x1E) } func (f StrTo) Exist() bool { return string(f) != string(0x1E) } func (f StrTo) Bool() (bool, error) { return strconv.ParseBool(f.String()) } func (f StrTo) Float32() (float32, error) { v, err := strconv.ParseFloat(f.String(), 32) return float32(v), err } func (f StrTo) Float64() (float64, error) { return strconv.ParseFloat(f.String(), 64) } func (f StrTo) Int16() (int16, error) { v, err := strconv.ParseInt(f.String(), 10, 16) return int16(v), err } func (f StrTo) Int32() (int32, error) { v, err := strconv.ParseInt(f.String(), 10, 32) return int32(v), err } func (f StrTo) Int64() (int64, error) { v, err := strconv.ParseInt(f.String(), 10, 64) return int64(v), err } func (f StrTo) Uint16() (uint16, error) { v, err := strconv.ParseUint(f.String(), 10, 16) return uint16(v), err } func (f StrTo) Uint32() (uint32, error) { v, err := strconv.ParseUint(f.String(), 10, 32) return uint32(v), err } func (f StrTo) Uint64() (uint64, error) { v, err := strconv.ParseUint(f.String(), 10, 64) return uint64(v), err } func (f StrTo) String() string { if f.Exist() { return string(f) } return "" } func ToStr(value interface{}, args ...int) (s string) { switch v := value.(type) { case bool: s = strconv.FormatBool(v) case float32: s = strconv.FormatFloat(float64(v), 'f', argInt(args).Get(0, -1), argInt(args).Get(1, 32)) case float64: s = strconv.FormatFloat(v, 'f', argInt(args).Get(0, -1), argInt(args).Get(1, 64)) case int: s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10)) case int16: s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10)) case int32: s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10)) case int64: s = strconv.FormatInt(v, argInt(args).Get(0, 10)) case uint: s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10)) case uint16: s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10)) case uint32: s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10)) case uint64: s = strconv.FormatUint(v, argInt(args).Get(0, 10)) case string: s = v default: s = fmt.Sprintf("%v", v) } return s } func snakeString(s string) string { data := make([]byte, 0, len(s)*2) j := false num := len(s) for i := 0; i < num; i++ { d := s[i] if i > 0 && d >= 'A' && d <= 'Z' && j { data = append(data, '_') } if d != '_' { j = true } data = append(data, d) } return strings.ToLower(string(data[:len(data)])) } func camelString(s string) string { data := make([]byte, 0, len(s)) j := false k := false num := len(s) - 1 for i := 0; i <= num; i++ { d := s[i] if k == false && d >= 'A' && d <= 'Z' { k = true } if d >= 'a' && d <= 'z' && (j || k == false) { d = d - 32 j = false k = true } if k && d == '_' && num > i && s[i+1] >= 'a' && s[i+1] <= 'z' { j = true continue } data = append(data, d) } return string(data[:len(data)]) } type argString []string func (a argString) Get(i int, args ...string) (r string) { if i >= 0 && i < len(a) { r = a[i] } else if len(args) > 0 { r = args[0] } return } type argInt []int func (a argInt) Get(i int, args ...int) (r int) { if i >= 0 && i < len(a) { r = a[i] } if len(args) > 0 { r = args[0] } return } func timeParse(dateString, format string) (time.Time, error) { tp, err := time.ParseInLocation(format, dateString, DefaultTimeLoc) return tp, err } func timeFormat(t time.Time, format string) string { return t.Format(format) }