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Support count distinct

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huydx 2016-07-18 16:43:19 +09:00 committed by huydx
parent b507cdf93d
commit f159d05209
2 changed files with 12 additions and 0 deletions
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5
main.go
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@ -298,6 +298,11 @@ func (s *DB) Count(value interface{}) *DB {
return s.NewScope(s.Value).count(value).db return s.NewScope(s.Value).count(value).db
} }
// CountDistinct get how many distinct records for a model
func (s *DB) CountDistinct(value interface{}, columnName string) *DB {
return s.NewScope(s.Value).countDistinct(value, columnName).db
}
// Related get related associations // Related get related associations
func (s *DB) Related(value interface{}, foreignKeys ...string) *DB { func (s *DB) Related(value interface{}, foreignKeys ...string) *DB {
return s.clone().NewScope(s.Value).related(value, foreignKeys...).db return s.clone().NewScope(s.Value).related(value, foreignKeys...).db

7
scope.go
View File

@ -921,6 +921,13 @@ func (scope *Scope) count(value interface{}) *Scope {
return scope return scope
} }
func (scope *Scope) countDistinct(value interface{}, column string) *Scope {
scope.Search.Select(fmt.Sprintf("count(%s)", column))
scope.Search.countingQuery = true
scope.Err(scope.row().Scan(value))
return scope
}
func (scope *Scope) typeName() string { func (scope *Scope) typeName() string {
typ := scope.IndirectValue().Type() typ := scope.IndirectValue().Type()