init commit

vendor/github.com/jinzhu/gorm/errors.go

@@ -0,0 +1,72 @@
+package gorm
+
+import (
+	"errors"
+	"strings"
+)
+
+var (
+	// ErrRecordNotFound record not found error, happens when only haven't find any matched data when looking up with a struct, finding a slice won't return this error
+	ErrRecordNotFound = errors.New("record not found")
+	// ErrInvalidSQL invalid SQL error, happens when you passed invalid SQL
+	ErrInvalidSQL = errors.New("invalid SQL")
+	// ErrInvalidTransaction invalid transaction when you are trying to `Commit` or `Rollback`
+	ErrInvalidTransaction = errors.New("no valid transaction")
+	// ErrCantStartTransaction can't start transaction when you are trying to start one with `Begin`
+	ErrCantStartTransaction = errors.New("can't start transaction")
+	// ErrUnaddressable unaddressable value
+	ErrUnaddressable = errors.New("using unaddressable value")
+)
+
+// Errors contains all happened errors
+type Errors []error
+
+// IsRecordNotFoundError returns current error has record not found error or not
+func IsRecordNotFoundError(err error) bool {
+	if errs, ok := err.(Errors); ok {
+		for _, err := range errs {
+			if err == ErrRecordNotFound {
+				return true
+			}
+		}
+	}
+	return err == ErrRecordNotFound
+}
+
+// GetErrors gets all happened errors
+func (errs Errors) GetErrors() []error {
+	return errs
+}
+
+// Add adds an error
+func (errs Errors) Add(newErrors ...error) Errors {
+	for _, err := range newErrors {
+		if err == nil {
+			continue
+		}
+
+		if errors, ok := err.(Errors); ok {
+			errs = errs.Add(errors...)
+		} else {
+			ok = true
+			for _, e := range errs {
+				if err == e {
+					ok = false
+				}
+			}
+			if ok {
+				errs = append(errs, err)
+			}
+		}
+	}
+	return errs
+}
+
+// Error format happened errors
+func (errs Errors) Error() string {
+	var errors = []string{}
+	for _, e := range errs {
+		errors = append(errors, e.Error())
+	}
+	return strings.Join(errors, "; ")
+}