Multiple extends of the same type

[mskrip]

While having two extends fields with the same type it is not possible to bind the values into them correctly if the query only queries some of the fields.

Meaning query SELECT sc.Width, sc.Height FROM Books AS b LEFT JOIN Size AS s ON s.ID = b.SizeClosed with following data structure binds the data into SizeOpen instead of SizeClosed for me.

type Size struct {
	Width  *float64 `json:"width" xorm:"'Width'"`
	Height *float64 `json:"height" xorm:"'Height'"`
}

type Book struct {
        SizeOpen   Size `json:"size_open" xorm:"extends"`
        SizeClosed Size `json:"size_closed" xorm:"extends"`
}

Would it for example be possible to set something like a prefix with extends tag? This prefix would then have to be on the query on all the child columns. So something like SELECT sc.Width AS ClosedWidth, sc.Height AS ClosedHeight FROM Books AS b LEFT JOIN Size AS s ON s.ID = b.SizeClosed with following tags would be able to bind it correctly.

type Book struct {
        SizeOpen   Size `json:"size_open" xorm:"extends 'Open'"`
        SizeClosed Size `json:"size_closed" xorm:"extends 'Closed'"`
}

[lunny]

It seems that's a good idea. Or we can use extends('Open')