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Merge pull request #3208 from hurisheng/qs_forupdate

add 'FOR UPDATE' support for querySet
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astaxie 2018-06-23 22:49:01 +08:00 committed by GitHub
commit 110dbcb31f
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3 changed files with 25 additions and 10 deletions

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@ -969,6 +969,10 @@ func (d *dbBase) ReadBatch(q dbQuerier, qs *querySet, mi *modelInfo, cond *Condi
}
query := fmt.Sprintf("%s %s FROM %s%s%s T0 %s%s%s%s%s", sqlSelect, sels, Q, mi.table, Q, join, where, groupBy, orderBy, limit)
if qs.forupdate {
query += " FOR UPDATE"
}
d.ins.ReplaceMarks(&query)
var rs *sql.Rows

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@ -55,16 +55,17 @@ func ColValue(opt operator, value interface{}) interface{} {
// real query struct
type querySet struct {
mi *modelInfo
cond *Condition
related []string
relDepth int
limit int64
offset int64
groups []string
orders []string
distinct bool
orm *orm
mi *modelInfo
cond *Condition
related []string
relDepth int
limit int64
offset int64
groups []string
orders []string
distinct bool
forupdate bool
orm *orm
}
var _ QuerySeter = new(querySet)
@ -127,6 +128,12 @@ func (o querySet) Distinct() QuerySeter {
return &o
}
// add FOR UPDATE to SELECT
func (o querySet) ForUpdate() QuerySeter {
o.forupdate = true
return &o
}
// set relation model to query together.
// it will query relation models and assign to parent model.
func (o querySet) RelatedSel(params ...interface{}) QuerySeter {

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@ -190,6 +190,10 @@ type QuerySeter interface {
// Distinct().
// All(&permissions)
Distinct() QuerySeter
// set FOR UPDATE to query.
// for example:
// o.QueryTable("user").Filter("uid", uid).ForUpdate().All(&users)
ForUpdate() QuerySeter
// return QuerySeter execution result number
// for example:
// num, err = qs.Filter("profile__age__gt", 28).Count()