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Optimized quantity handling

This commit is contained in:
konrad 2017-11-29 15:53:11 +01:00 committed by kolaente
parent c93b2f433c
commit 7fba68f812
Signed by: konrad
GPG Key ID: F40E70337AB24C9B
1 changed files with 22 additions and 41 deletions
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63
models/quantity.go
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@ -70,30 +70,21 @@ func SetQuantity(itemID, quantity int64) (err error) {
// Get item quantity with relation
func (item Item) getQuantity() (quantity int64, err error) {
// get the quantity relation for the item
qtyID, _, err := item.getQuantityRelation()
if err != nil {
return 0, err
}
qty := Quantity{}
_, err = x.Table("quantities").
Select("quantities.id, quantity_relations.item_id, quantities.quantity, quantities.created").
Join("INNER", "quantity_relations", "quantities.item_id = quantity_relations.id").
Where("quantity_relations.item_id = ?", item.ID).
Desc("quantities.created").Get(&qty)
return GetQuantity(qtyID)
}
func (item Item) getQuantityRelation() (qtyID int64, exists bool, err error) {
// get the quantity relation for the item
qty := quantityRelation{ItemID: item.ID}
has, err := x.Get(&qty)
if err != nil {
return 0, false, err
}
return qty.ID, has, nil
return qty.Quantity, err
}
// Set item quantity with relation
func (item Item) setQuantity(quantity int64) (err error) {
// Check if the relation already exists, if not, create a new one
qtyItemID, exists, err := item.getQuantityRelation()
qty := quantityRelation{ItemID: item.ID}
exists, err := x.Get(&qty)
if err != nil {
return
}
@ -105,42 +96,32 @@ func (item Item) setQuantity(quantity int64) (err error) {
return err
}
qtyItemID = rel.ID
qty.ID = rel.ID
}
// Insert the new quantity
return SetQuantity(qtyItemID, quantity)
return SetQuantity(qty.ID, quantity)
}
// ===== BOOKS =====
// Get book quantity with relation
func (book Book) getQuantity() (quantity int64, err error) {
// get the quantity relation for the item
qtyID, _, err := book.getQuantityRelation()
if err != nil {
return 0, err
}
qty := Quantity{}
_, err = x.Table("quantities").
Select("quantities.id, quantity_relations.item_id, quantities.quantity, quantities.created").
Join("INNER", "quantity_relations", "quantities.item_id = quantity_relations.id").
Where("quantity_relations.book_id = ?", book.ID).
Desc("quantities.created").Get(&qty)
return GetQuantity(qtyID)
}
// Get the quantity relation
func (book Book) getQuantityRelation() (qtyID int64, exists bool, err error) {
// get the quantity relation for the item
qty := quantityRelation{BookID: book.ID}
has, err := x.Get(&qty)
if err != nil {
return 0, false, err
}
return qty.ID, has, nil
return qty.Quantity, err
}
// Set book quantity with relation
func (book Book) setQuantity(quantity int64) (err error) {
// Check if the relation already exists, if not, create a new one
qtyItemID, exists, err := book.getQuantityRelation()
qty := quantityRelation{BookID: book.ID}
exists, err := x.Get(&qty)
if err != nil {
return
}
@ -152,9 +133,9 @@ func (book Book) setQuantity(quantity int64) (err error) {
return err
}
qtyItemID = rel.ID
qty.ID = rel.ID
}
// Insert the new quantity
return SetQuantity(qtyItemID, quantity)
return SetQuantity(qty.ID, quantity)
}