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Merge pull request #3208 from hurisheng/qs_forupdate
add 'FOR UPDATE' support for querySet
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commit
110dbcb31f
@ -969,6 +969,10 @@ func (d *dbBase) ReadBatch(q dbQuerier, qs *querySet, mi *modelInfo, cond *Condi
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}
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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)
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if qs.forupdate {
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query += " FOR UPDATE"
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}
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d.ins.ReplaceMarks(&query)
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var rs *sql.Rows
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@ -55,16 +55,17 @@ func ColValue(opt operator, value interface{}) interface{} {
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// real query struct
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type querySet struct {
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mi *modelInfo
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cond *Condition
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related []string
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relDepth int
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limit int64
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offset int64
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groups []string
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orders []string
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distinct bool
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orm *orm
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mi *modelInfo
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cond *Condition
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related []string
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relDepth int
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limit int64
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offset int64
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groups []string
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orders []string
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distinct bool
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forupdate bool
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orm *orm
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}
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var _ QuerySeter = new(querySet)
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@ -127,6 +128,12 @@ func (o querySet) Distinct() QuerySeter {
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return &o
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}
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// add FOR UPDATE to SELECT
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func (o querySet) ForUpdate() QuerySeter {
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o.forupdate = true
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return &o
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}
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// set relation model to query together.
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// it will query relation models and assign to parent model.
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func (o querySet) RelatedSel(params ...interface{}) QuerySeter {
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@ -190,6 +190,10 @@ type QuerySeter interface {
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// Distinct().
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// All(&permissions)
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Distinct() QuerySeter
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// set FOR UPDATE to query.
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// for example:
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// o.QueryTable("user").Filter("uid", uid).ForUpdate().All(&users)
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ForUpdate() QuerySeter
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// return QuerySeter execution result number
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// for example:
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// num, err = qs.Filter("profile__age__gt", 28).Count()
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