mirror of https://github.com/go-gorm/gorm.git
151 lines
3.4 KiB
Go
151 lines
3.4 KiB
Go
package utils
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import (
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"database/sql/driver"
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"fmt"
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"path/filepath"
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"reflect"
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"runtime"
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"strconv"
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"strings"
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"unicode"
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)
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var gormSourceDir string
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func init() {
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_, file, _, _ := runtime.Caller(0)
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// compatible solution to get gorm source directory with various operating systems
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gormSourceDir = sourceDir(file)
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}
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func sourceDir(file string) string {
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dir := filepath.Dir(file)
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dir = filepath.Dir(dir)
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s := filepath.Dir(dir)
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if filepath.Base(s) != "gorm.io" {
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s = dir
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}
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return filepath.ToSlash(s) + "/"
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}
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// FileWithLineNum return the file name and line number of the current file
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func FileWithLineNum() string {
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// the second caller usually from gorm internal, so set i start from 2
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for i := 2; i < 15; i++ {
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_, file, line, ok := runtime.Caller(i)
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if ok && (!strings.HasPrefix(file, gormSourceDir) || strings.HasSuffix(file, "_test.go")) {
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return file + ":" + strconv.FormatInt(int64(line), 10)
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}
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}
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return ""
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}
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func IsValidDBNameChar(c rune) bool {
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return !unicode.IsLetter(c) && !unicode.IsNumber(c) && c != '.' && c != '*' && c != '_' && c != '$' && c != '@'
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}
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// CheckTruth check string true or not
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func CheckTruth(vals ...string) bool {
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for _, val := range vals {
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if val != "" && !strings.EqualFold(val, "false") {
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return true
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}
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}
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return false
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}
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func ToStringKey(values ...interface{}) string {
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results := make([]string, len(values))
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for idx, value := range values {
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if valuer, ok := value.(driver.Valuer); ok {
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value, _ = valuer.Value()
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}
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switch v := value.(type) {
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case string:
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results[idx] = v
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case []byte:
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results[idx] = string(v)
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case uint:
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results[idx] = strconv.FormatUint(uint64(v), 10)
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default:
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results[idx] = fmt.Sprint(reflect.Indirect(reflect.ValueOf(v)).Interface())
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}
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}
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return strings.Join(results, "_")
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}
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func Contains(elems []string, elem string) bool {
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for _, e := range elems {
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if elem == e {
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return true
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}
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}
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return false
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}
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func AssertEqual(src, dst interface{}) bool {
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if !reflect.DeepEqual(src, dst) {
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if valuer, ok := src.(driver.Valuer); ok {
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src, _ = valuer.Value()
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}
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if valuer, ok := dst.(driver.Valuer); ok {
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dst, _ = valuer.Value()
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}
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return reflect.DeepEqual(src, dst)
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}
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return true
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}
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func ToString(value interface{}) string {
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switch v := value.(type) {
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case string:
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return v
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case int:
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return strconv.FormatInt(int64(v), 10)
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case int8:
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return strconv.FormatInt(int64(v), 10)
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case int16:
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return strconv.FormatInt(int64(v), 10)
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case int32:
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return strconv.FormatInt(int64(v), 10)
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case int64:
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return strconv.FormatInt(v, 10)
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case uint:
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return strconv.FormatUint(uint64(v), 10)
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case uint8:
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return strconv.FormatUint(uint64(v), 10)
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case uint16:
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return strconv.FormatUint(uint64(v), 10)
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case uint32:
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return strconv.FormatUint(uint64(v), 10)
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case uint64:
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return strconv.FormatUint(v, 10)
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}
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return ""
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}
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const nestedRelationSplit = "__"
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// NestedRelationName nested relationships like `Manager__Company`
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func NestedRelationName(prefix, name string) string {
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return prefix + nestedRelationSplit + name
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}
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// SplitNestedRelationName Split nested relationships to `[]string{"Manager","Company"}`
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func SplitNestedRelationName(name string) []string {
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return strings.Split(name, nestedRelationSplit)
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}
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// JoinNestedRelationNames nested relationships like `Manager__Company`
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func JoinNestedRelationNames(relationNames []string) string {
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return strings.Join(relationNames, nestedRelationSplit)
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}
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