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Fix auto select with smaller struct for slices

This commit is contained in:
Jinzhu 2020-07-09 12:15:35 +08:00
parent 0790ff6937
commit a8655f7947
2 changed files with 35 additions and 7 deletions
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24
callbacks/query.go
View File

@ -64,14 +64,24 @@ func BuildQuerySQL(db *gorm.DB) {
clauseSelect.Columns[idx] = clause.Column{Name: name, Raw: true}
}
}
} else if db.Statement.Schema != nil && db.Statement.ReflectValue.IsValid() && db.Statement.ReflectValue.Type() != db.Statement.Schema.ModelType {
stmt := gorm.Statement{DB: db}
// smaller struct
if err := stmt.Parse(db.Statement.Dest); err == nil {
clauseSelect.Columns = make([]clause.Column, len(stmt.Schema.DBNames))
} else if db.Statement.Schema != nil && db.Statement.ReflectValue.IsValid() {
smallerStruct := false
switch db.Statement.ReflectValue.Kind() {
case reflect.Struct:
smallerStruct = db.Statement.ReflectValue.Type() != db.Statement.Schema.ModelType
case reflect.Slice:
smallerStruct = db.Statement.ReflectValue.Type().Elem() != db.Statement.Schema.ModelType
}
for idx, dbName := range stmt.Schema.DBNames {
clauseSelect.Columns[idx] = clause.Column{Name: dbName}
if smallerStruct {
stmt := gorm.Statement{DB: db}
// smaller struct
if err := stmt.Parse(db.Statement.Dest); err == nil && stmt.Schema.ModelType != db.Statement.Schema.ModelType {
clauseSelect.Columns = make([]clause.Column, len(stmt.Schema.DBNames))
for idx, dbName := range stmt.Schema.DBNames {
clauseSelect.Columns[idx] = clause.Column{Name: dbName}
}
}
}
}

18
tests/query_test.go
View File

@ -177,6 +177,24 @@ func TestFillSmallerStruct(t *testing.T) {
if !regexp.MustCompile("SELECT .*id.*name.*updated_at.*created_at.* FROM .*users").MatchString(result.Statement.SQL.String()) {
t.Fatalf("SQL should include selected names, but got %v", result.Statement.SQL.String())
}
result = DB.Session(&gorm.Session{DryRun: true}).Model(&User{}).Find(&User{}, user.ID)
if regexp.MustCompile("SELECT .*name.* FROM .*users").MatchString(result.Statement.SQL.String()) {
t.Fatalf("SQL should not include selected names, but got %v", result.Statement.SQL.String())
}
result = DB.Session(&gorm.Session{DryRun: true}).Model(&User{}).Find(&[]User{}, user.ID)
if regexp.MustCompile("SELECT .*name.* FROM .*users").MatchString(result.Statement.SQL.String()) {
t.Fatalf("SQL should not include selected names, but got %v", result.Statement.SQL.String())
}
result = DB.Session(&gorm.Session{DryRun: true}).Model(&User{}).Find(&[]*User{}, user.ID)
if regexp.MustCompile("SELECT .*name.* FROM .*users").MatchString(result.Statement.SQL.String()) {
t.Fatalf("SQL should not include selected names, but got %v", result.Statement.SQL.String())
}
}
func TestNot(t *testing.T) {