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pagedCount() #259

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19d6156
Add pagedCount method to query builder
zgrguric Oct 5, 2022
c333907
add pagedCount example
zgrguric Oct 5, 2022
0404ca7
Update README.md
zgrguric Oct 7, 2022
b53e0d6
Update README.md
zgrguric Oct 7, 2022
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14 changes: 14 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ Supports all key types - primary hash key and composite keys.
* [save](#save) / [saveAsync()](#saveasync)
* [delete](#delete) / [deleteAsync()](#deleteasync)
* [chunk](#chunk)
* [pagedCount](#pagedcount)
* [limit() and take()](#limit-and-take)
* [firstOrFail()](#firstorfail)
* [findOrFail()](#findorfail)
Expand Down Expand Up @@ -277,6 +278,19 @@ $model->chunk(10, function ($records) {
});
```

#### pagedCount()

```php
$countResult = $model->pagedCount();
if($countResult->lastKey) {
//lastEvaluatedKey is already set to $model
//$countResultNext will contain counts from next page
$countResultNext = $model->pagedCount();
//...
}

```

#### limit() and take()

```php
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16 changes: 16 additions & 0 deletions src/DynamoDbQueryBuilder.php
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Expand Up @@ -676,6 +676,22 @@ public function count()

return $res['Count'];
}

public function pagedCount()
{
$limit = isset($this->limit) ? $this->limit : static::MAX_LIMIT;

$raw = $this->toDynamoDbQuery(['count(*)'], $limit);

if ($raw->op === 'Scan') {
$res = $this->client->scan($raw->query);
} else {
$res = $this->client->query($raw->query);
}
$this->lastEvaluatedKey = Arr::get($res, 'LastEvaluatedKey');

return (object)['count' => $res['Count'], 'scanned_count' => $res['ScannedCount'], 'lastKey' => $this->lastEvaluatedKey];
}

public function decorate(Closure $closure)
{
Expand Down