all panic use Error

@@ -58,7 +58,7 @@ func (d *dbBase) collectValues(mi *modelInfo, ind reflect.Value, cols []string,
 		if fi, _ = mi.fields.GetByAny(column); fi != nil {
 			column = fi.column
 		} else {
-			panic(fmt.Sprintf("wrong db field/column name `%s` for model `%s`", column, mi.fullName))
+			panic(fmt.Errorf("wrong db field/column name `%s` for model `%s`", column, mi.fullName))
 		}
 		if fi.dbcol == false || fi.auto && skipAuto {
 			continue
@@ -360,7 +360,7 @@ func (d *dbBase) UpdateBatch(q dbQuerier, qs *querySet, mi *modelInfo, cond *Con
 	values := make([]interface{}, 0, len(params))
 	for col, val := range params {
 		if fi, ok := mi.fields.GetByAny(col); ok == false || fi.dbcol == false {
-			panic(fmt.Sprintf("wrong field/column name `%s`", col))
+			panic(fmt.Errorf("wrong field/column name `%s`", col))
 		} else {
 			columns = append(columns, fi.column)
 			values = append(values, val)
@@ -368,7 +368,7 @@ func (d *dbBase) UpdateBatch(q dbQuerier, qs *querySet, mi *modelInfo, cond *Con
 	}
 
 	if len(columns) == 0 {
-		panic("update params cannot empty")
+		panic(fmt.Errorf("update params cannot empty"))
 	}
 
 	tables := newDbTables(mi, d.ins)
@@ -438,7 +438,7 @@ func (d *dbBase) DeleteBatch(q dbQuerier, qs *querySet, mi *modelInfo, cond *Con
 	}
 
 	if cond == nil || cond.IsEmpty() {
-		panic("delete operation cannot execute without condition")
+		panic(fmt.Errorf("delete operation cannot execute without condition"))
 	}
 
 	Q := d.ins.TableQuote()
@@ -533,9 +533,9 @@ func (d *dbBase) ReadBatch(q dbQuerier, qs *querySet, mi *modelInfo, cond *Condi
 
 	if errTyp {
 		if one {
-			panic(fmt.Sprintf("wrong object type `%s` for rows scan, need *%s", val.Type(), mi.fullName))
+			panic(fmt.Errorf("wrong object type `%s` for rows scan, need *%s", val.Type(), mi.fullName))
 		} else {
-			panic(fmt.Sprintf("wrong object type `%s` for rows scan, need *[]*%s or *[]%s", val.Type(), mi.fullName, mi.fullName))
+			panic(fmt.Errorf("wrong object type `%s` for rows scan, need *[]*%s or *[]%s", val.Type(), mi.fullName, mi.fullName))
 		}
 	}
 
@@ -559,7 +559,7 @@ func (d *dbBase) ReadBatch(q dbQuerier, qs *querySet, mi *modelInfo, cond *Condi
 					maps[fi.column] = true
 				}
 			} else {
-				panic(fmt.Sprintf("wrong field/column name `%s`", col))
+				panic(fmt.Errorf("wrong field/column name `%s`", col))
 			}
 		}
 		if hasRel {
@@ -717,7 +717,7 @@ func (d *dbBase) GenerateOperatorSql(mi *modelInfo, fi *fieldInfo, operator stri
 	params := getFlatParams(fi, args, tz)
 
 	if len(params) == 0 {
-		panic(fmt.Sprintf("operator `%s` need at least one args", operator))
+		panic(fmt.Errorf("operator `%s` need at least one args", operator))
 	}
 	arg := params[0]
 
@@ -729,7 +729,7 @@ func (d *dbBase) GenerateOperatorSql(mi *modelInfo, fi *fieldInfo, operator stri
 		sql = fmt.Sprintf("IN (%s)", strings.Join(marks, ", "))
 	} else {
 		if len(params) > 1 {
-			panic(fmt.Sprintf("operator `%s` need 1 args not %d", operator, len(params)))
+			panic(fmt.Errorf("operator `%s` need 1 args not %d", operator, len(params)))
 		}
 		sql = d.ins.OperatorSql(operator)
 		switch operator {
@@ -758,7 +758,7 @@ func (d *dbBase) GenerateOperatorSql(mi *modelInfo, fi *fieldInfo, operator stri
 				}
 				params = nil
 			} else {
-				panic(fmt.Sprintf("operator `%s` need a bool value not `%T`", operator, arg))
+				panic(fmt.Errorf("operator `%s` need a bool value not `%T`", operator, arg))
 			}
 		}
 	}
@@ -779,13 +779,13 @@ func (d *dbBase) setColsValues(mi *modelInfo, ind *reflect.Value, cols []string,
 
 		value, err := d.convertValueFromDB(fi, val, tz)
 		if err != nil {
-			panic(fmt.Sprintf("Raw value: `%v` %s", val, err.Error()))
+			panic(fmt.Errorf("Raw value: `%v` %s", val, err.Error()))
 		}
 
 		_, err = d.setFieldValue(fi, value, field)
 
 		if err != nil {
-			panic(fmt.Sprintf("Raw value: `%v` %s", val, err.Error()))
+			panic(fmt.Errorf("Raw value: `%v` %s", val, err.Error()))
 		}
 	}
 }
@@ -1034,7 +1034,7 @@ func (d *dbBase) ReadValues(q dbQuerier, qs *querySet, mi *modelInfo, cond *Cond
 	case *ParamsList:
 		typ = 3
 	default:
-		panic(fmt.Sprintf("unsupport read values type `%T`", container))
+		panic(fmt.Errorf("unsupport read values type `%T`", container))
 	}
 
 	tables := newDbTables(mi, d.ins)
@@ -1117,7 +1117,7 @@ func (d *dbBase) ReadValues(q dbQuerier, qs *querySet, mi *modelInfo, cond *Cond
 
 				value, err := d.convertValueFromDB(fi, val, tz)
 				if err != nil {
-					panic(fmt.Sprintf("db value convert failed `%v` %s", val, err.Error()))
+					panic(fmt.Errorf("db value convert failed `%v` %s", val, err.Error()))
 				}
 
 				params[columns[i]] = value
@@ -1132,7 +1132,7 @@ func (d *dbBase) ReadValues(q dbQuerier, qs *querySet, mi *modelInfo, cond *Cond
 
 				value, err := d.convertValueFromDB(fi, val, tz)
 				if err != nil {
-					panic(fmt.Sprintf("db value convert failed `%v` %s", val, err.Error()))
+					panic(fmt.Errorf("db value convert failed `%v` %s", val, err.Error()))
 				}
 
 				params = append(params, value)
@@ -1146,7 +1146,7 @@ func (d *dbBase) ReadValues(q dbQuerier, qs *querySet, mi *modelInfo, cond *Cond
 
 				value, err := d.convertValueFromDB(fi, val, tz)
 				if err != nil {
-					panic(fmt.Sprintf("db value convert failed `%v` %s", val, err.Error()))
+					panic(fmt.Errorf("db value convert failed `%v` %s", val, err.Error()))
 				}
 
 				list = append(list, value)

@@ -126,7 +126,7 @@ func (t *dbTables) parseRelated(rels []string, depth int) {
 				jtl = jt
 
 			} else {
-				panic(fmt.Sprintf("unknown model/table name `%s`", ex))
+				panic(fmt.Errorf("unknown model/table name `%s`", ex))
 			}
 		}
 	}

@@ -14,7 +14,7 @@ func registerModel(model interface{}, prefix string) {
 	typ := ind.Type()
 
 	if val.Kind() != reflect.Ptr {
-		panic(fmt.Sprintf("<orm.RegisterModel> cannot use non-ptr model struct `%s`", getFullName(typ)))
+		panic(fmt.Errorf("<orm.RegisterModel> cannot use non-ptr model struct `%s`", getFullName(typ)))
 	}
 
 	table := getTableName(val)
@@ -177,7 +177,7 @@ func bootStrap() {
 							}
 						}
 						if added == false {
-							panic(fmt.Sprintf("cannot generate auto reverse field info `%s` to `%s`", fi.fullName, ffi.fullName))
+							panic(fmt.Errorf("cannot generate auto reverse field info `%s` to `%s`", fi.fullName, ffi.fullName))
 						}
 					}
 				}

@@ -44,13 +44,13 @@ func (o *orm) getMiInd(md interface{}) (mi *modelInfo, ind reflect.Value) {
 	ind = reflect.Indirect(val)
 	typ := ind.Type()
 	if val.Kind() != reflect.Ptr {
-		panic(fmt.Sprintf("<Ormer> cannot use non-ptr model struct `%s`", getFullName(typ)))
+		panic(fmt.Errorf("<Ormer> cannot use non-ptr model struct `%s`", getFullName(typ)))
 	}
 	name := getFullName(typ)
 	if mi, ok := modelCache.getByFN(name); ok {
 		return mi, ind
 	}
-	panic(fmt.Sprintf("<Ormer> table: `%s` not found, maybe not RegisterModel", name))
+	panic(fmt.Errorf("<Ormer> table: `%s` not found, maybe not RegisterModel", name))
 }
 
 func (o *orm) Read(md interface{}, cols ...string) error {
@@ -141,14 +141,14 @@ func (o *orm) QueryTable(ptrStructOrTableName interface{}) (qs QuerySeter) {
 		}
 	}
 	if qs == nil {
-		panic(fmt.Sprintf("<Ormer.QueryTable> table name: `%s` not exists", name))
+		panic(fmt.Errorf("<Ormer.QueryTable> table name: `%s` not exists", name))
 	}
 	return
 }
 
 func (o *orm) Using(name string) error {
 	if o.isTx {
-		panic("<Ormer.Using> transaction has been start, cannot change db")
+		panic(fmt.Errorf("<Ormer.Using> transaction has been start, cannot change db"))
 	}
 	if al, ok := dataBaseCache.get(name); ok {
 		o.alias = al
@@ -158,7 +158,7 @@ func (o *orm) Using(name string) error {
 			o.db = al.DB
 		}
 	} else {
-		return errors.New(fmt.Sprintf("<Ormer.Using> unknown db alias name `%s`", name))
+		return fmt.Errorf("<Ormer.Using> unknown db alias name `%s`", name)
 	}
 	return nil
 }

 package orm
 
 import (
+	"fmt"
 	"strings"
 )
 
@@ -28,7 +29,7 @@ func NewCondition() *Condition {
 
 func (c Condition) And(expr string, args ...interface{}) *Condition {
 	if expr == "" || len(args) == 0 {
-		panic("<Condition.And> args cannot empty")
+		panic(fmt.Errorf("<Condition.And> args cannot empty"))
 	}
 	c.params = append(c.params, condValue{exprs: strings.Split(expr, ExprSep), args: args})
 	return &c
@@ -36,7 +37,7 @@ func (c Condition) And(expr string, args ...interface{}) *Condition {
 
 func (c Condition) AndNot(expr string, args ...interface{}) *Condition {
 	if expr == "" || len(args) == 0 {
-		panic("<Condition.AndNot> args cannot empty")
+		panic(fmt.Errorf("<Condition.AndNot> args cannot empty"))
 	}
 	c.params = append(c.params, condValue{exprs: strings.Split(expr, ExprSep), args: args, isNot: true})
 	return &c
@@ -45,7 +46,7 @@ func (c Condition) AndNot(expr string, args ...interface{}) *Condition {
 func (c *Condition) AndCond(cond *Condition) *Condition {
 	c = c.clone()
 	if c == cond {
-		panic("cannot use self as sub cond")
+		panic(fmt.Errorf("<Condition.AndCond> cannot use self as sub cond"))
 	}
 	if cond != nil {
 		c.params = append(c.params, condValue{cond: cond, isCond: true})
@@ -55,7 +56,7 @@ func (c *Condition) AndCond(cond *Condition) *Condition {
 
 func (c Condition) Or(expr string, args ...interface{}) *Condition {
 	if expr == "" || len(args) == 0 {
-		panic("<Condition.Or> args cannot empty")
+		panic(fmt.Errorf("<Condition.Or> args cannot empty"))
 	}
 	c.params = append(c.params, condValue{exprs: strings.Split(expr, ExprSep), args: args, isOr: true})
 	return &c
@@ -63,7 +64,7 @@ func (c Condition) Or(expr string, args ...interface{}) *Condition {
 
 func (c Condition) OrNot(expr string, args ...interface{}) *Condition {
 	if expr == "" || len(args) == 0 {
-		panic("<Condition.OrNot> args cannot empty")
+		panic(fmt.Errorf("<Condition.OrNot> args cannot empty"))
 	}
 	c.params = append(c.params, condValue{exprs: strings.Split(expr, ExprSep), args: args, isNot: true, isOr: true})
 	return &c
@@ -72,7 +73,7 @@ func (c Condition) OrNot(expr string, args ...interface{}) *Condition {
 func (c *Condition) OrCond(cond *Condition) *Condition {
 	c = c.clone()
 	if c == cond {
-		panic("cannot use self as sub cond")
+		panic(fmt.Errorf("<Condition.OrCond> cannot use self as sub cond"))
 	}
 	if cond != nil {
 		c.params = append(c.params, condValue{cond: cond, isCond: true, isOr: true})

@@ -23,10 +23,10 @@ func (o *insertSet) Insert(md interface{}) (int64, error) {
 	typ := ind.Type()
 	name := getFullName(typ)
 	if val.Kind() != reflect.Ptr {
-		panic(fmt.Sprintf("<Inserter.Insert> cannot use non-ptr model struct `%s`", name))
+		panic(fmt.Errorf("<Inserter.Insert> cannot use non-ptr model struct `%s`", name))
 	}
 	if name != o.mi.fullName {
-		panic(fmt.Sprintf("<Inserter.Insert> need model `%s` but found `%s`", o.mi.fullName, name))
+		panic(fmt.Errorf("<Inserter.Insert> need model `%s` but found `%s`", o.mi.fullName, name))
 	}
 	id, err := o.orm.alias.DbBaser.InsertStmt(o.stmt, o.mi, ind, o.orm.alias.TZ)
 	if err != nil {

@@ -67,7 +67,7 @@ func (o querySet) RelatedSel(params ...interface{}) QuerySeter {
 			case int:
 				o.relDepth = val
 			default:
-				panic(fmt.Sprintf("<QuerySeter.RelatedSel> wrong param kind: %v", val))
+				panic(fmt.Errorf("<QuerySeter.RelatedSel> wrong param kind: %v", val))
 			}
 		}
 	}

@@ -314,7 +314,7 @@ func (o *rawSet) loopSetRefs(refs []interface{}, sIdxes [][]int, sInds []reflect
 
 func (o *rawSet) QueryRow(containers ...interface{}) error {
 	if len(containers) == 0 {
-		panic("<RawSeter.QueryRow> need at least one arg")
+		panic(fmt.Errorf("<RawSeter.QueryRow> need at least one arg"))
 	}
 
 	refs := make([]interface{}, 0, len(containers))
@@ -327,7 +327,7 @@ func (o *rawSet) QueryRow(containers ...interface{}) error {
 		ind := reflect.Indirect(val)
 
 		if val.Kind() != reflect.Ptr {
-			panic("<RawSeter.QueryRow> all args must be use ptr")
+			panic(fmt.Errorf("<RawSeter.QueryRow> all args must be use ptr"))
 		}
 
 		etyp := ind.Type()
@@ -377,7 +377,7 @@ func (o *rawSet) QueryRows(containers ...interface{}) (int64, error) {
 		val := reflect.ValueOf(container)
 		sInd := reflect.Indirect(val)
 		if val.Kind() != reflect.Ptr || sInd.Kind() != reflect.Slice {
-			panic("<RawSeter.QueryRows> all args must be use ptr slice")
+			panic(fmt.Errorf("<RawSeter.QueryRows> all args must be use ptr slice"))
 		}
 
 		etyp := sInd.Type().Elem()
@@ -440,7 +440,7 @@ func (o *rawSet) readValues(container interface{}) (int64, error) {
 	case *ParamsList:
 		typ = 3
 	default:
-		panic(fmt.Sprintf("<RawSeter> unsupport read values type `%T`", container))
+		panic(fmt.Errorf("<RawSeter> unsupport read values type `%T`", container))
 	}
 
 	query := o.query