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add AppendColumn method #2006

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add AppendColumn method #2006

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24 changes: 24 additions & 0 deletions orm/query.go
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Original file line number Diff line number Diff line change
Expand Up @@ -360,6 +360,30 @@ func (q *Query) ExcludeColumn(columns ...string) *Query {
return q
}

// AppendColumn appends column to the list of default columns if they weren't set,
// while Column method overrides defaults
func (q *Query) AppendColumn(columns ...string) *Query {
t := q.tableModel.Table()
if q.columns == nil {
for _, f := range t.Fields {
q.columns = append(q.columns, SafeQuery("?.?", t.Alias, f.Column))
}
}
return q.Column(columns...)
}

// AppendColumnExpr appends column expression to the list of default columns if they weren't set,
// while ColumnExpr method overrides defaults
func (q *Query) AppendColumnExpr(expr string, params ...interface{}) *Query {
t := q.tableModel.Table()
if q.columns == nil {
for _, f := range t.Fields {
q.columns = append(q.columns, SafeQuery("?.?", t.Alias, f.Column))
}
}
return q.ColumnExpr(expr, params...)
}

func (q *Query) excludeColumn(column string) bool {
for i := 0; i < len(q.columns); i++ {
app, ok := q.columns[i].(fieldAppender)
Expand Down