make callback query works

callback_query.go

@@ -1,6 +1,81 @@
 package gorm
 
+import (
+	"fmt"
+	"reflect"
+	"strings"
+	"time"
+)
+
 func Query(scope *Scope) {
+	defer scope.Trace(time.Now())
+
+	inlineCondition, ok := scope.Get("gorm:inline_condition")
+	if ok {
+		inlineConditions := inlineCondition.([]interface{})
+		if len(inlineConditions) > 0 {
+			scope.Search = scope.Search.clone().where(inlineConditions[0], inlineConditions[1:]...)
+		}
+	}
+
+	var (
+		isSlice        bool
+		anyRecordFound bool
+		destType       reflect.Type
+	)
+
+	var dest = reflect.Indirect(reflect.ValueOf(scope.Value))
+
+	if dest.Kind() == reflect.Slice {
+		isSlice = true
+		destType = dest.Type().Elem()
+	} else {
+		scope.Search = scope.Search.clone().limit(1)
+	}
+
+	if scope.Search.raw {
+		scope.Raw(strings.TrimLeft(scope.CombinedConditionSql(), "WHERE "))
+	} else {
+		scope.Raw(fmt.Sprintf("SELECT %v FROM %v %v", scope.SelectSql(), scope.TableName(), scope.CombinedConditionSql()))
+	}
+
+	if !scope.HasError() {
+		rows, err := scope.DB().Query(scope.Sql, scope.SqlVars...)
+
+		if scope.Err(err) != nil {
+			return
+		}
+
+		defer rows.Close()
+		for rows.Next() {
+			anyRecordFound = true
+			elem := dest
+			if isSlice {
+				elem = reflect.New(destType).Elem()
+			}
+
+			columns, _ := rows.Columns()
+			var values []interface{}
+			for _, value := range columns {
+				field := elem.FieldByName(snakeToUpperCamel(value))
+				if field.IsValid() {
+					values = append(values, field.Addr().Interface())
+				} else {
+					var ignore interface{}
+					values = append(values, &ignore)
+				}
+			}
+			scope.Err(rows.Scan(values...))
+
+			if isSlice {
+				dest.Set(reflect.Append(dest, elem))
+			}
+		}
+
+		if !anyRecordFound && !isSlice {
+			scope.Err(RecordNotFound)
+		}
+	}
 }
 
 func AfterQuery(scope *Scope) {

main.go

@@ -117,7 +117,7 @@ func (s *DB) Last(out interface{}, where ...interface{}) *DB {
 	return s.clone().do(out).where(where...).last().db
 }
 func (s *DB) Find(out interface{}, where ...interface{}) *DB {
-	return s.clone().do(out).where(where...).query().db
+	return s.clone().NewScope(out).Set("gorm:inline_condition", where).callCallbacks(s.parent.callback.queries).db
 }
 
 func (s *DB) Row() *sql.Row {

scope.go

@@ -151,7 +151,8 @@ func (scope *Scope) CallMethod(name string) {
 		return
 	}
 
-	if fm := reflect.ValueOf(scope.Value).MethodByName(name); fm.IsValid() {
+	call := func(value interface{}) {
+		if fm := reflect.ValueOf(value).MethodByName(name); fm.IsValid() {
 			fi := fm.Interface()
 			if f, ok := fi.(func()); ok {
 				f()
@@ -171,6 +172,15 @@ func (scope *Scope) CallMethod(name string) {
 		}
 	}
 
+	if values := reflect.Indirect(reflect.ValueOf(scope.Value)); values.Kind() == reflect.Slice {
+		for i := 0; i < values.Len(); i++ {
+			call(values.Index(i).Addr().Interface())
+		}
+	} else {
+		call(scope.Value)
+	}
+}
+
 func (scope *Scope) AddToVars(value interface{}) string {
 	scope.SqlVars = append(scope.SqlVars, value)
 	return scope.Dialect().BinVar(len(scope.SqlVars))
@@ -367,3 +377,11 @@ func (scope *Scope) CommitOrRollback() *Scope {
 	}
 	return scope
 }
+
+func (scope *Scope) SelectSql() string {
+	if len(scope.Search.selectStr) == 0 {
+		return "*"
+	} else {
+		return scope.Search.selectStr
+	}
+}

scope_condition.go

@@ -43,8 +43,10 @@ func (scope *Scope) buildWhereCondition(clause map[string]interface{}) (str stri
 		return strings.Join(sqls, " AND ")
 	case interface{}:
 		var sqls []string
-		for _, field := range scope.Fields() {
+		for _, field := range scope.New(value).Fields() {
-			sqls = append(sqls, fmt.Sprintf("(%v = %v)", scope.quote(field.dbName), scope.AddToVars(field.Value)))
+			if !field.IsBlank {
+				sqls = append(sqls, fmt.Sprintf("(%v = %v)", scope.quote(field.DBName), scope.AddToVars(field.Value)))
+			}
 		}
 		return strings.Join(sqls, " AND ")
 	}
@@ -102,8 +104,10 @@ func (scope *Scope) buildNotCondition(clause map[string]interface{}) (str string
 		return strings.Join(sqls, " AND ")
 	case interface{}:
 		var sqls []string
-		for _, field := range scope.Fields() {
+		for _, field := range scope.New(value).Fields() {
-			sqls = append(sqls, fmt.Sprintf("(%v <> %v)", scope.quote(field.dbName), scope.AddToVars(field.Value)))
+			if !field.IsBlank {
+				sqls = append(sqls, fmt.Sprintf("(%v <> %v)", scope.quote(field.DBName), scope.AddToVars(field.Value)))
+			}
 		}
 		return strings.Join(sqls, " AND ")
 	}