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package mongo |
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import ( |
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"context" |
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"os" |
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"go.mongodb.org/mongo-driver/bson" |
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"go.mongodb.org/mongo-driver/mongo" |
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"go.mongodb.org/mongo-driver/mongo/options" |
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"github.com/rfinochi/golang-workshop-todo/pkg/common" |
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"github.com/rfinochi/golang-workshop-todo/pkg/models" |
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) |
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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 := connnect() |
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if err != nil { |
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return |
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} |
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collection := client.Database("todo").Collection("items") |
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cursor, err := collection.Find(ctx, bson.M{}) |
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if err == nil { |
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defer cursor.Close(ctx) |
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for cursor.Next(ctx) { |
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var oneItem models.Item |
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cursor.Decode(&oneItem) |
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items = append(items, oneItem) |
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} |
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} |
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disconnect(ctx, client) |
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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 := connnect() |
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if err != nil { |
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return |
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} |
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options := options.Find() |
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options.SetLimit(1) |
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collection := client.Database("todo").Collection("items") |
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cursor, err := collection.Find(ctx, models.Item{ID: id}, options) |
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if err == nil { |
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defer cursor.Close(ctx) |
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for cursor.Next(ctx) { |
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cursor.Decode(&item) |
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} |
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} |
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disconnect(ctx, client) |
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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 := connnect() |
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if err != nil { |
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return |
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} |
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collection := client.Database("todo").Collection("items") |
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_, err = collection.InsertOne(ctx, newItem) |
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disconnect(ctx, client) |
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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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update := bson.M{"$set": bson.M{"title": item.Title, "isdone": item.IsDone}} |
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ctx, client, err := connnect() |
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if err != nil { |
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return |
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} |
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collection := client.Database("todo").Collection("items") |
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_, err = collection.UpdateOne(ctx, models.Item{ID: item.ID}, update) |
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disconnect(ctx, client) |
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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 := connnect() |
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if err != nil { |
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return |
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} |
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collection := client.Database("todo").Collection("items") |
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_, err = collection.DeleteMany(ctx, models.Item{ID: id}) |
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disconnect(ctx, client) |
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return |
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} |
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func connnect() (ctx context.Context, client *mongo.Client, err error) { |
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ctx = context.Background() |
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client, err = mongo.Connect(ctx, options.Client().ApplyURI(getURI())) |
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if err != nil { |
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return |
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} |
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return |
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} |
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func disconnect(ctx context.Context, client *mongo.Client) { |
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defer client.Disconnect(ctx) |
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} |
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func getURI() (uri string) { |
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var ok bool |
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if uri, ok = os.LookupEnv(common.RepositoryMongoURIEnvVarName); !ok { |
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uri = common.RepositoryMongoURIDefault |
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} |
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return |
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} |
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rfinochi /
golang-workshop-todo
