312 lines
7.4 KiB
Markdown
312 lines
7.4 KiB
Markdown
_October 19, 2016_
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Breaking changes to cloud.google.com/go/bigquery:
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* Client.Table and Client.OpenTable have been removed.
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Replace
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```go
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client.OpenTable("project", "dataset", "table")
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```
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with
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```go
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client.DatasetInProject("project", "dataset").Table("table")
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```
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* Client.CreateTable has been removed.
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Replace
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```go
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client.CreateTable(ctx, "project", "dataset", "table")
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```
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with
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```go
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client.DatasetInProject("project", "dataset").Table("table").Create(ctx)
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```
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* Dataset.ListTables have been replaced with Dataset.Tables.
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Replace
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```go
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tables, err := ds.ListTables(ctx)
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```
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with
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```go
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it := ds.Tables(ctx)
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for {
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table, err := it.Next()
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if err == iterator.Done {
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break
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}
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if err != nil {
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// TODO: Handle error.
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}
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// TODO: use table.
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}
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```
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* Client.Read has been replaced with Job.Read, Table.Read and Query.Read.
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Replace
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```go
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it, err := client.Read(ctx, job)
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```
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with
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```go
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it, err := job.Read(ctx)
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```
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and similarly for reading from tables or queries.
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* The iterator returned from the Read methods is now named RowIterator. Its
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behavior is closer to the other iterators in these libraries. It no longer
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supports the Schema method; see the next item.
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Replace
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```go
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for it.Next(ctx) {
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var vals ValueList
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if err := it.Get(&vals); err != nil {
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// TODO: Handle error.
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}
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// TODO: use vals.
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}
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if err := it.Err(); err != nil {
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// TODO: Handle error.
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}
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```
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with
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```
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for {
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var vals ValueList
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err := it.Next(&vals)
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if err == iterator.Done {
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break
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}
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if err != nil {
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// TODO: Handle error.
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}
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// TODO: use vals.
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}
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```
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Instead of the `RecordsPerRequest(n)` option, write
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```go
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it.PageInfo().MaxSize = n
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```
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Instead of the `StartIndex(i)` option, write
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```go
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it.StartIndex = i
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```
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* ValueLoader.Load now takes a Schema in addition to a slice of Values.
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Replace
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```go
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func (vl *myValueLoader) Load(v []bigquery.Value)
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```
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with
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```go
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func (vl *myValueLoader) Load(v []bigquery.Value, s bigquery.Schema)
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```
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* Table.Patch is replace by Table.Update.
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Replace
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```go
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p := table.Patch()
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p.Description("new description")
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metadata, err := p.Apply(ctx)
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```
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with
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```go
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metadata, err := table.Update(ctx, bigquery.TableMetadataToUpdate{
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Description: "new description",
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})
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```
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* Client.Copy is replaced by separate methods for each of its four functions.
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All options have been replaced by struct fields.
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* To load data from Google Cloud Storage into a table, use Table.LoaderFrom.
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Replace
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```go
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client.Copy(ctx, table, gcsRef)
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```
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with
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```go
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table.LoaderFrom(gcsRef).Run(ctx)
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```
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Instead of passing options to Copy, set fields on the Loader:
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```go
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loader := table.LoaderFrom(gcsRef)
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loader.WriteDisposition = bigquery.WriteTruncate
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```
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* To extract data from a table into Google Cloud Storage, use
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Table.ExtractorTo. Set fields on the returned Extractor instead of
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passing options.
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Replace
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```go
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client.Copy(ctx, gcsRef, table)
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```
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with
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```go
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table.ExtractorTo(gcsRef).Run(ctx)
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```
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* To copy data into a table from one or more other tables, use
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Table.CopierFrom. Set fields on the returned Copier instead of passing options.
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Replace
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```go
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client.Copy(ctx, dstTable, srcTable)
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```
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with
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```go
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dst.Table.CopierFrom(srcTable).Run(ctx)
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```
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* To start a query job, create a Query and call its Run method. Set fields
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on the query instead of passing options.
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Replace
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```go
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client.Copy(ctx, table, query)
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```
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with
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```go
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query.Run(ctx)
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```
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* Table.NewUploader has been renamed to Table.Uploader. Instead of options,
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configure an Uploader by setting its fields.
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Replace
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```go
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u := table.NewUploader(bigquery.UploadIgnoreUnknownValues())
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```
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with
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```go
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u := table.NewUploader(bigquery.UploadIgnoreUnknownValues())
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u.IgnoreUnknownValues = true
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```
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_October 10, 2016_
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Breaking changes to cloud.google.com/go/storage:
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* AdminClient replaced by methods on Client.
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Replace
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```go
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adminClient.CreateBucket(ctx, bucketName, attrs)
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```
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with
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```go
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client.Bucket(bucketName).Create(ctx, projectID, attrs)
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```
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* BucketHandle.List replaced by BucketHandle.Objects.
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Replace
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```go
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for query != nil {
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objs, err := bucket.List(d.ctx, query)
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if err != nil { ... }
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query = objs.Next
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for _, obj := range objs.Results {
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fmt.Println(obj)
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}
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}
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```
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with
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```go
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iter := bucket.Objects(d.ctx, query)
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for {
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obj, err := iter.Next()
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if err == iterator.Done {
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break
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}
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if err != nil { ... }
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fmt.Println(obj)
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}
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```
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(The `iterator` package is at `google.golang.org/api/iterator`.)
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Replace `Query.Cursor` with `ObjectIterator.PageInfo().Token`.
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Replace `Query.MaxResults` with `ObjectIterator.PageInfo().MaxSize`.
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* ObjectHandle.CopyTo replaced by ObjectHandle.CopierFrom.
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Replace
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```go
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attrs, err := src.CopyTo(ctx, dst, nil)
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```
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with
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```go
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attrs, err := dst.CopierFrom(src).Run(ctx)
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```
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Replace
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```go
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attrs, err := src.CopyTo(ctx, dst, &storage.ObjectAttrs{ContextType: "text/html"})
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```
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with
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```go
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c := dst.CopierFrom(src)
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c.ContextType = "text/html"
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attrs, err := c.Run(ctx)
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```
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* ObjectHandle.ComposeFrom replaced by ObjectHandle.ComposerFrom.
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Replace
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```go
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attrs, err := dst.ComposeFrom(ctx, []*storage.ObjectHandle{src1, src2}, nil)
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```
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with
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```go
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attrs, err := dst.ComposerFrom(src1, src2).Run(ctx)
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```
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* ObjectHandle.Update's ObjectAttrs argument replaced by ObjectAttrsToUpdate.
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Replace
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```go
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attrs, err := obj.Update(ctx, &storage.ObjectAttrs{ContextType: "text/html"})
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```
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with
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```go
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attrs, err := obj.Update(ctx, storage.ObjectAttrsToUpdate{ContextType: "text/html"})
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```
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* ObjectHandle.WithConditions replaced by ObjectHandle.If.
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Replace
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```go
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obj.WithConditions(storage.Generation(gen), storage.IfMetaGenerationMatch(mgen))
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```
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with
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```go
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obj.Generation(gen).If(storage.Conditions{MetagenerationMatch: mgen})
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```
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Replace
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```go
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obj.WithConditions(storage.IfGenerationMatch(0))
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```
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with
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```go
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obj.If(storage.Conditions{DoesNotExist: true})
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```
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* `storage.Done` replaced by `iterator.Done` (from package `google.golang.org/api/iterator`).
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_October 6, 2016_
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Package preview/logging deleted. Use logging instead.
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_September 27, 2016_
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Logging client replaced with preview version (see below).
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_September 8, 2016_
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* New clients for some of Google's Machine Learning APIs: Vision, Speech, and
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Natural Language.
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* Preview version of a new [Stackdriver Logging][cloud-logging] client in
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[`cloud.google.com/go/preview/logging`](https://godoc.org/cloud.google.com/go/preview/logging).
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This client uses gRPC as its transport layer, and supports log reading, sinks
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and metrics. It will replace the current client at `cloud.google.com/go/logging` shortly.
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