feat(spanner): BatchWrite Sample

[surbhigarg92]

No description provided.

[gemini-code-assist]

Summary of Changes

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This pull request introduces a new PHP sample for Google Cloud Spanner's BatchWrite API, providing a clear demonstration of how to efficiently insert data using mutation groups. It highlights the ability to define atomic operations within groups and handle responses for each group, offering a robust example for developers looking to optimize their Spanner write operations.

Highlights

• New Spanner BatchWrite Sample: A new PHP sample has been added to demonstrate the usage of the Google Cloud Spanner BatchWrite API. This sample illustrates how to perform efficient, grouped data insertions.
• BatchWrite Functionality: The sample showcases the creation of mutation groups, allowing for both atomic and non-atomic application of mutations, and processes the responses to confirm successful writes or identify errors.
• Dedicated Test Case: A corresponding PHPUnit test file has been introduced to validate the functionality of the new BatchWrite sample, ensuring its correctness and providing a runnable example.

Changelog

• spanner/src/batch_write.php
  • Added a new sample file for the Spanner BatchWrite API.
  • Implemented the batch_write function to demonstrate data insertion using atomic and non-atomic mutation groups.
  • Included logic to process and print the results of each mutation group's application.
• spanner/test/spannerBatchWriteTest.php
  • Added a new PHPUnit test file for the batch_write sample.
  • Implemented testBatchWrite to execute the sample and assert that mutation groups were applied successfully.

Activity

• No specific activity (comments, reviews, or progress updates) was provided in the context for this pull request.

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[gemini-code-assist]

Code Review

This pull request introduces a new PHP sample for Cloud Spanner's BatchWrite functionality, which is a useful addition. The sample code clearly demonstrates how to group mutations and use the batchWriteAtLeastOnce method. The accompanying test file provides basic validation that the sample executes successfully. I have one suggestion to improve adherence to PHP coding standards in the test file.

[gemini-code-assist]

The class name spannerBatchWriteTest does not adhere to the PSR-1 coding standard, which requires class names to be in StudlyCaps (also known as PascalCase). For consistency and to follow best practices, please rename the class to SpannerBatchWriteTest.

class SpannerBatchWriteTest extends TestCase

References

1. According to PSR-1: Basic Coding Standard, class names MUST be declared in StudlyCaps. ^(link)