105 lines
2.2 KiB
Go
105 lines
2.2 KiB
Go
package gorm
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import (
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"reflect"
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"strings"
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"time"
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)
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func Query(scope *Scope) {
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defer scope.Trace(time.Now())
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var (
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isSlice bool
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isPtr bool
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anyRecordFound bool
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destType reflect.Type
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)
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var dest = scope.IndirectValue()
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if value, ok := scope.Get("gorm:query_destination"); ok {
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dest = reflect.Indirect(reflect.ValueOf(value))
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}
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if dest.Kind() == reflect.Slice {
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isSlice = true
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destType = dest.Type().Elem()
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if destType.Kind() == reflect.Ptr {
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isPtr = true
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destType = destType.Elem()
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}
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} else {
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scope.Search = scope.Search.clone().limit(1)
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}
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scope.prepareQuerySql()
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if !scope.HasError() {
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rows, err := scope.DB().Query(scope.Sql, scope.SqlVars...)
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if scope.Err(err) != nil {
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return
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}
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colToFieldMap := make(map[string]string)
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if destType != nil && destType.Kind() == reflect.Struct {
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for i := 0; i < destType.NumField(); i++ {
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fieldName := destType.Field(i).Name
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dbColumnName := ToSnake(fieldName)
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settings := parseTagSetting(destType.Field(i).Tag.Get("gorm"))
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if colName, ok := settings["COLUMN"]; ok && colName != "" {
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dbColumnName = colName
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}
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colToFieldMap[dbColumnName] = fieldName
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}
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}
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defer rows.Close()
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for rows.Next() {
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anyRecordFound = true
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elem := dest
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if isSlice {
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elem = reflect.New(destType).Elem()
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}
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columns, _ := rows.Columns()
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var values []interface{}
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for _, value := range columns {
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fieldName, ok := colToFieldMap[value]
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if !ok {
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fieldName = SnakeToUpperCamel(strings.ToLower(value))
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}
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field := elem.FieldByName(fieldName)
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if field.IsValid() {
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values = append(values, field.Addr().Interface())
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} else {
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var ignore interface{}
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values = append(values, &ignore)
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}
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}
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scope.Err(rows.Scan(values...))
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if isSlice {
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if isPtr {
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dest.Set(reflect.Append(dest, elem.Addr()))
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} else {
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dest.Set(reflect.Append(dest, elem))
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}
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}
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}
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if !anyRecordFound {
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scope.Err(RecordNotFound)
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}
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}
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}
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func AfterQuery(scope *Scope) {
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scope.CallMethod("AfterFind")
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}
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func init() {
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DefaultCallback.Query().Register("gorm:query", Query)
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DefaultCallback.Query().Register("gorm:after_query", AfterQuery)
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}
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