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232 lines
5.9 KiB
232 lines
5.9 KiB
// Copyright 2017 The Xorm Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package xorm
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import (
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"database/sql/driver"
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"fmt"
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"reflect"
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"strings"
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"time"
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"xorm.io/builder"
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"xorm.io/core"
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)
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func (engine *Engine) buildConds(table *core.Table, bean interface{},
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includeVersion bool, includeUpdated bool, includeNil bool,
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includeAutoIncr bool, allUseBool bool, useAllCols bool, unscoped bool,
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mustColumnMap map[string]bool, tableName, aliasName string, addedTableName bool) (builder.Cond, error) {
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var conds []builder.Cond
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for _, col := range table.Columns() {
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if !includeVersion && col.IsVersion {
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continue
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}
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if !includeUpdated && col.IsUpdated {
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continue
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}
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if !includeAutoIncr && col.IsAutoIncrement {
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continue
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}
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if engine.dialect.DBType() == core.MSSQL && (col.SQLType.Name == core.Text || col.SQLType.IsBlob() || col.SQLType.Name == core.TimeStampz) {
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continue
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}
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if col.SQLType.IsJson() {
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continue
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}
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var colName string
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if addedTableName {
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var nm = tableName
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if len(aliasName) > 0 {
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nm = aliasName
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}
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colName = engine.Quote(nm) + "." + engine.Quote(col.Name)
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} else {
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colName = engine.Quote(col.Name)
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}
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fieldValuePtr, err := col.ValueOf(bean)
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if err != nil {
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if !strings.Contains(err.Error(), "is not valid") {
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engine.logger.Warn(err)
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}
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continue
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}
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if col.IsDeleted && !unscoped { // tag "deleted" is enabled
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conds = append(conds, engine.CondDeleted(colName))
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}
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fieldValue := *fieldValuePtr
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if fieldValue.Interface() == nil {
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continue
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}
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fieldType := reflect.TypeOf(fieldValue.Interface())
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requiredField := useAllCols
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if b, ok := getFlagForColumn(mustColumnMap, col); ok {
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if b {
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requiredField = true
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} else {
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continue
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}
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}
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if fieldType.Kind() == reflect.Ptr {
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if fieldValue.IsNil() {
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if includeNil {
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conds = append(conds, builder.Eq{colName: nil})
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}
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continue
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} else if !fieldValue.IsValid() {
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continue
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} else {
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// dereference ptr type to instance type
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fieldValue = fieldValue.Elem()
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fieldType = reflect.TypeOf(fieldValue.Interface())
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requiredField = true
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}
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}
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var val interface{}
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switch fieldType.Kind() {
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case reflect.Bool:
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if allUseBool || requiredField {
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val = fieldValue.Interface()
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} else {
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// if a bool in a struct, it will not be as a condition because it default is false,
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// please use Where() instead
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continue
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}
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case reflect.String:
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if !requiredField && fieldValue.String() == "" {
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continue
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}
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// for MyString, should convert to string or panic
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if fieldType.String() != reflect.String.String() {
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val = fieldValue.String()
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} else {
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val = fieldValue.Interface()
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}
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case reflect.Int8, reflect.Int16, reflect.Int, reflect.Int32, reflect.Int64:
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if !requiredField && fieldValue.Int() == 0 {
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continue
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}
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val = fieldValue.Interface()
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case reflect.Float32, reflect.Float64:
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if !requiredField && fieldValue.Float() == 0.0 {
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continue
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}
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val = fieldValue.Interface()
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case reflect.Uint8, reflect.Uint16, reflect.Uint, reflect.Uint32, reflect.Uint64:
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if !requiredField && fieldValue.Uint() == 0 {
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continue
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}
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t := int64(fieldValue.Uint())
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val = reflect.ValueOf(&t).Interface()
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case reflect.Struct:
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if fieldType.ConvertibleTo(core.TimeType) {
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t := fieldValue.Convert(core.TimeType).Interface().(time.Time)
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if !requiredField && (t.IsZero() || !fieldValue.IsValid()) {
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continue
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}
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val = engine.formatColTime(col, t)
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} else if _, ok := reflect.New(fieldType).Interface().(core.Conversion); ok {
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continue
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} else if valNul, ok := fieldValue.Interface().(driver.Valuer); ok {
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val, _ = valNul.Value()
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if val == nil {
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continue
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}
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} else {
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if col.SQLType.IsJson() {
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if col.SQLType.IsText() {
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bytes, err := DefaultJSONHandler.Marshal(fieldValue.Interface())
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if err != nil {
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engine.logger.Error(err)
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continue
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}
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val = string(bytes)
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} else if col.SQLType.IsBlob() {
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var bytes []byte
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var err error
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bytes, err = DefaultJSONHandler.Marshal(fieldValue.Interface())
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if err != nil {
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engine.logger.Error(err)
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continue
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}
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val = bytes
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}
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} else {
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engine.autoMapType(fieldValue)
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if table, ok := engine.Tables[fieldValue.Type()]; ok {
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if len(table.PrimaryKeys) == 1 {
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pkField := reflect.Indirect(fieldValue).FieldByName(table.PKColumns()[0].FieldName)
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// fix non-int pk issues
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//if pkField.Int() != 0 {
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if pkField.IsValid() && !isZero(pkField.Interface()) {
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val = pkField.Interface()
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} else {
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continue
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}
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} else {
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//TODO: how to handler?
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return nil, fmt.Errorf("not supported %v as %v", fieldValue.Interface(), table.PrimaryKeys)
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}
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} else {
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val = fieldValue.Interface()
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}
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}
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}
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case reflect.Array:
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continue
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case reflect.Slice, reflect.Map:
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if fieldValue == reflect.Zero(fieldType) {
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continue
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}
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if fieldValue.IsNil() || !fieldValue.IsValid() || fieldValue.Len() == 0 {
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continue
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}
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if col.SQLType.IsText() {
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bytes, err := DefaultJSONHandler.Marshal(fieldValue.Interface())
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if err != nil {
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engine.logger.Error(err)
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continue
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}
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val = string(bytes)
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} else if col.SQLType.IsBlob() {
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var bytes []byte
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var err error
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if (fieldType.Kind() == reflect.Array || fieldType.Kind() == reflect.Slice) &&
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fieldType.Elem().Kind() == reflect.Uint8 {
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if fieldValue.Len() > 0 {
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val = fieldValue.Bytes()
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} else {
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continue
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}
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} else {
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bytes, err = DefaultJSONHandler.Marshal(fieldValue.Interface())
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if err != nil {
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engine.logger.Error(err)
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continue
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}
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val = bytes
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}
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} else {
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continue
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}
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default:
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val = fieldValue.Interface()
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}
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conds = append(conds, builder.Eq{colName: val})
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}
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return builder.And(conds...), nil
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}
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