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package google |
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import ( |
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"context" |
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"cloud.google.com/go/datastore" |
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"google.golang.org/api/iterator" |
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"github.com/rfinochi/golang-workshop-todo/pkg/models" |
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) |
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const entityName string = "todoitem" |
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// ItemRepository godoc |
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type ItemRepository struct { |
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} |
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// GetItems godoc |
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func (ItemRepository) GetItems() (items []models.Item, err error) { |
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ctx, client, err := connnectToDatastore() |
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if err != nil { |
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return |
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} |
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query := datastore.NewQuery("todoitem").Order("id") |
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it := client.Run(ctx, query) |
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for { |
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var item models.Item |
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if _, err = it.Next(&item); err == iterator.Done { |
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err = nil |
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break |
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} else if err != nil { |
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return |
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} |
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items = append(items, 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 (ItemRepository) GetItem(id int) (item models.Item, err error) { |
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ctx, client, err := connnectToDatastore() |
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if err != nil { |
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return |
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} |
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key := datastore.IDKey(entityName, int64(id), nil) |
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err = client.Get(ctx, key, &item) |
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if err == datastore.ErrNoSuchEntity { |
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err = nil |
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} |
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return |
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} |
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// CreateItem godoc |
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func (ItemRepository) CreateItem(newItem models.Item) (err error) { |
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ctx, client, err := connnectToDatastore() |
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if err != nil { |
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return |
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} |
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key := datastore.IDKey(entityName, int64(newItem.ID), nil) |
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_, err = client.Put(ctx, key, &newItem) |
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return |
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} |
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// UpdateItem godoc |
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func (ItemRepository) UpdateItem(item models.Item) (err error) { |
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ctx, client, err := connnectToDatastore() |
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if err != nil { |
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return |
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} |
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key := datastore.IDKey(entityName, int64(item.ID), nil) |
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_, err = client.Put(ctx, key, &item) |
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return |
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} |
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// DeleteItem godoc |
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func (ItemRepository) DeleteItem(id int) (err error) { |
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ctx, client, err := connnectToDatastore() |
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if err != nil { |
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return |
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} |
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key := datastore.IDKey(entityName, int64(id), nil) |
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err = client.Delete(ctx, key) |
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return |
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} |
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func connnectToDatastore() (ctx context.Context, client *datastore.Client, err error) { |
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ctx = context.Background() |
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client, err = datastore.NewClient(ctx, "golang-workshop-todo") |
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return |
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} |
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rfinochi /
golang-workshop-todo
