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package models |
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import "errors" |
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// Item godoc |
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type Item struct { |
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ID int `json:"id,omitempty" bson:"id,omitempty" datastore:"id"` |
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Title string `json:"title,omitempty" bson:"title,omitempty" datastore:"title"` |
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IsDone bool `json:"isdone,omitempty" bson:"isdone,omitempty" datastore:"isdone"` |
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} |
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var ( |
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// ErrNoRecord godoc |
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ErrNoRecord = errors.New("No matching record found") |
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// ErrRecordExist godoc |
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ErrRecordExist = errors.New("Record already exists") |
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) |
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// ItemRepository godoc |
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type ItemRepository interface { |
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GetItems() ([]Item, error) |
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GetItem(int) (Item, error) |
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CreateItem(Item) error |
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UpdateItem(Item) error |
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DeleteItem(int) error |
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} |
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// ItemModel godoc |
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type ItemModel struct { |
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Repository ItemRepository |
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} |
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// GetItems godoc |
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func (model ItemModel) GetItems() (i []Item, e error) { |
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i, e = model.Repository.GetItems() |
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if i == nil && e == nil { |
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i = []Item{} |
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} |
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return |
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} |
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// GetItem godoc |
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func (model ItemModel) GetItem(id int) (i Item, e error) { |
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i, e = model.Repository.GetItem(id) |
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if i == (Item{}) && e == nil { |
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e = ErrNoRecord |
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} |
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return |
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} |
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// CreateItem godoc |
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func (model ItemModel) CreateItem(newItem Item) error { |
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i, _ := model.Repository.GetItem(newItem.ID) |
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if i.ID == newItem.ID { |
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return ErrRecordExist |
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} |
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return model.Repository.CreateItem(newItem) |
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} |
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// UpdateItem godoc |
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func (model ItemModel) UpdateItem(updatedItem Item) error { |
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i, e := model.Repository.GetItem(updatedItem.ID) |
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if i == (Item{}) && e == nil { |
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return ErrNoRecord |
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} |
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return model.Repository.UpdateItem(updatedItem) |
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} |
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// DeleteItem godoc |
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func (model ItemModel) DeleteItem(id int) error { |
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i, e := model.Repository.GetItem(id) |
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if i == (Item{}) && e == nil { |
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return ErrNoRecord |
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} |
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return model.Repository.DeleteItem(id) |
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} |
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rfinochi /
golang-workshop-todo
