diff --git a/mongox/common/loadbinary.go b/mongox/common/loadbinary.go new file mode 100644 index 0000000..5777e9f --- /dev/null +++ b/mongox/common/loadbinary.go @@ -0,0 +1,35 @@ +package common + +import ( + "github.com/mainnika/mongox-go-driver/mongox" + "github.com/mainnika/mongox-go-driver/mongox/errors" + "github.com/mainnika/mongox-go-driver/mongox/query" + "go.mongodb.org/mongo-driver/bson" + "go.mongodb.org/mongo-driver/mongo" + "go.mongodb.org/mongo-driver/mongo/options" +) + +// LoadBinary function loads a first single target document by a query +func LoadBinary(db *mongox.Database, target interface{}, filters ...interface{}) (bson.Raw, error) { + + collection := db.GetCollectionOf(target) + opts := options.FindOne() + composed := query.Compose(filters...) + + opts.Sort = composed.Sorter() + + result := collection.FindOne(db.Context(), composed.M(), opts) + if result.Err() != nil { + return nil, errors.InternalErrorf("can't create find one result: %s", result.Err()) + } + + bytes, err := result.DecodeBytes() + if err == mongo.ErrNoDocuments { + return nil, errors.NotFoundErrorf("%s", err) + } + if err != nil { + return nil, errors.InternalErrorf("can't decode desult: %s", err) + } + + return bytes, nil +}