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Agg builder blog post #2

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be82295
Add agg builder examples
alcaeus Sep 16, 2024
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wip
alcaeus Oct 23, 2024
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Apply suggestions from code review
alcaeus Oct 24, 2024
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Add suggestions from code review
alcaeus Oct 24, 2024
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Add alternatives to static methods
alcaeus Oct 24, 2024
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alcaeus Feb 27, 2025
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30 changes: 29 additions & 1 deletion tests/AggregationBlogPost/FuelExample1Test.php
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Original file line number Diff line number Diff line change
Expand Up @@ -2,17 +2,16 @@

namespace AggregationBlogPost;

use MongoDB\BSON\Type;
use MongoDB\Builder\Accumulator;
use MongoDB\Builder\Expression;
use MongoDB\Builder\Pipeline;
use MongoDB\Builder\Query;
use MongoDB\Builder\Stage;
use MongoDB\Builder\Stage\GroupStage;
use MongoDB\Builder\Type\ExpressionInterface;

Check failure on line 11 in tests/AggregationBlogPost/FuelExample1Test.php

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GitHub Actions / phpcs 

Type MongoDB\Builder\Type\ExpressionInterface is not used in this file.
use MongoDB\Tests\TestCase;
use stdClass;
use function MongoDB\object;

Check failure on line 14 in tests/AggregationBlogPost/FuelExample1Test.php

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GitHub Actions / phpcs 

Expected 1 line between different types of use statement, found 0.

class FuelExample1Test extends TestCase
{
Expand All @@ -25,7 +24,7 @@
'year' => ['$year' => '$reportDate'],
'month' => ['$month' => '$reportDate'],
'fuelType' => '$fuelType',
'brand' => '$station.brand'

Check failure on line 27 in tests/AggregationBlogPost/FuelExample1Test.php

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GitHub Actions / phpcs 

Multi-line arrays must have a trailing comma after the last element.
],
'lowest' => ['$min' => '$price'],
'highest' => ['$max' => '$price'],
Expand Down Expand Up @@ -117,9 +116,9 @@
Expression::doubleFieldPath('highest'),
Expression::doubleFieldPath('lowest'),
),
)

Check failure on line 119 in tests/AggregationBlogPost/FuelExample1Test.php

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GitHub Actions / phpcs 

Multi-line function calls must have a trailing comma after the last parameter.
)

Check failure on line 120 in tests/AggregationBlogPost/FuelExample1Test.php

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GitHub Actions / phpcs 

Multi-line function calls must have a trailing comma after the last parameter.
)

Check failure on line 121 in tests/AggregationBlogPost/FuelExample1Test.php

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GitHub Actions / phpcs 

Multi-line function calls must have a trailing comma after the last parameter.
),
Stage::addFields(
prices: Expression::arrayToObject(
Expand Down Expand Up @@ -599,4 +598,33 @@
),
);
}

public function testFirstClassCallableSyntax(): void
{
$reportDate = Expression::dateFieldPath('reportDate');
$price = Expression::doubleFieldPath('price');
$fuelType = Expression::fieldPath('fuelType');
$brand = Expression::fieldPath('station.brand');

$group = Stage::group(...);
$year = Expression::year(...);
$month = Expression::month(...);
$min = Accumulator::min(...);
$max = Accumulator::max(...);
$avg = Accumulator::avg(...);
$sum = Accumulator::sum(...);

$group(
_id: object(
year: $year($reportDate),
month: $month($reportDate),
fuelType: $fuelType,
brand: $brand,
),
lowest: $min($price),
highest: $max($price),
average: $avg($price),
count: $sum(1),
);
}
}
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