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feat(Spanner): Added samples for PG JSONB (#1687)
* Spanner: Add samples for PG.JSONB
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‎spanner/src/pg_add_jsonb_column.php‎

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<?php
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/**
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* Copyright 2022 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* For instructions on how to run the full sample:
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*
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* @see https://github.com/GoogleCloudPlatform/php-docs-samples/tree/master/spanner/README.md
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*/
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namespace Google\Cloud\Samples\Spanner;
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// [START spanner_postgresql_jsonb_add_column]
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use Google\Cloud\Spanner\SpannerClient;
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/**
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* Add a JSONB column to a table present in a PG Spanner database.
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*
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* @param string $instanceId The Spanner instance ID.
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* @param string $databaseId The Spanner database ID.
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* @param string $tableName The table in which the column needs to be added.
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*/
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function pg_add_jsonb_column(
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string $instanceId,
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string $databaseId,
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string $tableName = 'Venues'
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): void {
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$spanner = new SpannerClient();
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$instance = $spanner->instance($instanceId);
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$database = $instance->database($databaseId);
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$operation = $database->updateDdl(
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sprintf('ALTER TABLE %s ADD COLUMN VenueDetails JSONB', $tableName)
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);
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print('Waiting for operation to complete...' . PHP_EOL);
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$operation->pollUntilComplete();
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print(sprintf('Added column VenueDetails on table %s.', $tableName) . PHP_EOL);
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}
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// [END spanner_postgresql_jsonb_add_column]
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// The following 2 lines are only needed to run the samples
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require_once __DIR__ . '/../../testing/sample_helpers.php';
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\Google\Cloud\Samples\execute_sample(__FILE__, __NAMESPACE__, $argv);

‎spanner/src/pg_jsonb_query_parameter.php‎

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<?php
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/**
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* Copyright 2022 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* For instructions on how to run the full sample:
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*
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* @see https://github.com/GoogleCloudPlatform/php-docs-samples/tree/master/spanner/README.md
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*/
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namespace Google\Cloud\Samples\Spanner;
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// [START spanner_postgresql_jsonb_query_parameter]
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use Google\Cloud\Spanner\Database;
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use Google\Cloud\Spanner\SpannerClient;
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/**
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* Query data to a jsonb column in a PostgreSQL table.
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*
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* @param string $instanceId The Spanner instance ID.
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* @param string $databaseId The Spanner database ID.
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* @param string $tableName The table from which the data needs to be queried.
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*/
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function pg_jsonb_query_parameter(
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string $instanceId,
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string $databaseId,
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string $tableName = 'Venues'
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): void {
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$spanner = new SpannerClient();
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$instance = $spanner->instance($instanceId);
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$database = $instance->database($databaseId);
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$results = $database->execute(
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sprintf('SELECT venueid, venuedetails FROM %s', $tableName) .
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" WHERE CAST(venuedetails ->> 'rating' AS INTEGER) > $1",
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[
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'parameters' => [
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'p1' => 2
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],
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'types' => [
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'p1' => Database::TYPE_INT64
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]
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]);
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foreach ($results as $row) {
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printf('VenueId: %s, VenueDetails: %s' . PHP_EOL, $row['venueid'], $row['venuedetails']);
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}
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}
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// [END spanner_postgresql_jsonb_query_parameter]
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// The following 2 lines are only needed to run the samples
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require_once __DIR__ . '/../../testing/sample_helpers.php';
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\Google\Cloud\Samples\execute_sample(__FILE__, __NAMESPACE__, $argv);

‎spanner/src/pg_jsonb_update_data.php‎

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<?php
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/**
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* Copyright 2022 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* For instructions on how to run the full sample:
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*
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* @see https://github.com/GoogleCloudPlatform/php-docs-samples/tree/master/spanner/README.md
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*/
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namespace Google\Cloud\Samples\Spanner;
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// [START spanner_postgresql_jsonb_update_data]
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use Google\Cloud\Spanner\SpannerClient;
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/**
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* Insert/update data in a JSONB column in a Postgres table.
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*
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* @param string $instanceId The Spanner instance ID.
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* @param string $databaseId The Spanner database ID.
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* @param string $tableName The table in which the data needs to be updated.
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*/
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function pg_jsonb_update_data(
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string $instanceId,
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string $databaseId,
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string $tableName = 'Venues'
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): void {
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$spanner = new SpannerClient();
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$instance = $spanner->instance($instanceId);
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$database = $instance->database($databaseId);
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$database->insertOrUpdateBatch($tableName, [
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[
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'VenueId' => 1,
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'VenueDetails' => '{"rating": 9, "open": true}'
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],
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[
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'VenueId' => 4,
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'VenueDetails' => '[
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{
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"name": null,
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"available": true
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},' .
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// PG JSONB sorts first by key length and then lexicographically with
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// equivalent key length and takes the last value in the case of duplicate keys
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'{
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"name": "room 2",
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"available": false,
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"name": "room 3"
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},
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{
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"main hall": {
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"description": "this is the biggest space",
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"size": 200
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}
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}
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]'
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],
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[
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'VenueId' => 42,
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'VenueDetails' => $spanner->pgJsonb([
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'name' => null,
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'open' => [
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'Monday' => true,
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'Tuesday' => false
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],
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'tags' => ['large', 'airy'],
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])
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]
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]);
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print(sprintf('Inserted/updated 3 rows in table %s', $tableName) . PHP_EOL);
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}
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// [END spanner_postgresql_jsonb_update_data]
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// The following 2 lines are only needed to run the samples
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require_once __DIR__ . '/../../testing/sample_helpers.php';
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\Google\Cloud\Samples\execute_sample(__FILE__, __NAMESPACE__, $argv);

‎spanner/test/spannerPgTest.php‎

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use Google\Cloud\Spanner\Transaction;
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use Google\Cloud\TestUtils\EventuallyConsistentTestTrait;
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use Google\Cloud\TestUtils\TestTrait;
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use PHPUnitRetry\RetryTrait;
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use PHPUnit\Framework\TestCase;
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/**
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* @retryAttempts 3
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* @retryDelayMethod exponentialBackoff
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*/
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class spannerPgTest extends TestCase
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{
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use TestTrait {
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TestTrait::runFunctionSnippet as traitRunFunctionSnippet;
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}
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use RetryTrait, EventuallyConsistentTestTrait;
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use EventuallyConsistentTestTrait;
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/** @var string instanceId */
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protected static $instanceId;
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/** @var $lastUpdateData int */
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protected static $lastUpdateDataTimestamp;
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/** @var $jsonbTable string */
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protected static $jsonbTable;
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public static function setUpBeforeClass(): void
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{
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self::checkProjectEnvVars();
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$this->assertStringContainsString('Inserted 1 venue(s) with NaN revenue.', $output);
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}
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/**
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* @depends testCreateDatabase
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*/
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public function testJsonbAddColumn()
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{
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self::$jsonbTable = 'Venues' . time() . rand();
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// Create the table for our JSONB tests.
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$database = self::$instance->database(self::$databaseId);
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$op = $database->updateDdl(
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sprintf('CREATE TABLE %s (
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VenueId bigint NOT NULL PRIMARY KEY
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)', self::$jsonbTable)
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);
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$op->pollUntilComplete();
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// Now run the test
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$output = $this->runFunctionSnippet('pg_add_jsonb_column', [
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self::$instanceId, self::$databaseId, self::$jsonbTable
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]);
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self::$lastUpdateDataTimestamp = time();
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$this->assertStringContainsString(sprintf('Added column VenueDetails on table %s.', self::$jsonbTable), $output);
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}
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/**
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* @depends testJsonbAddColumn
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*/
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public function testJsonbUpdateData()
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{
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$output = $this->runFunctionSnippet('pg_jsonb_update_data', [
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self::$instanceId, self::$databaseId, self::$jsonbTable
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]);
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self::$lastUpdateDataTimestamp = time();
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$this->assertStringContainsString(sprintf('Inserted/updated 3 rows in table %s', self::$jsonbTable), $output);
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}
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/**
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* @depends testJsonbUpdateData
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*/
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public function testJsonbQueryParam()
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{
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$output = $this->runFunctionSnippet('pg_jsonb_query_parameter', [
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self::$instanceId, self::$databaseId, self::$jsonbTable
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]);
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self::$lastUpdateDataTimestamp = time();
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$this->assertEquals('VenueId: 1, VenueDetails: {"open": true, "rating": 9}' . PHP_EOL, $output);
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}
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/**
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* @depends testCreateDatabase
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*/

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