37 lines
1012 B
Markdown
37 lines
1012 B
Markdown
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## public Election::setExternalDataHandler
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### Description
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```php
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public Election->setExternalDataHandler ( CondorcetPHP\Condorcet\DataManager\DataHandlerDrivers\DataHandlerDriverInterface $driver ): bool
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```
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Import and enable an external driver to store vote on very large election.
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##### **driver:** *```CondorcetPHP\Condorcet\DataManager\DataHandlerDrivers\DataHandlerDriverInterface```*
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Driver object.
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### Return value:
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*(```bool```)* True if success. Else throw an Exception.
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### Throws:
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* ```CondorcetPHP\Condorcet\Throwable\DataHandlerException```
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---------------------------------------
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### Related method(s)
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* [Election::removeExternalDataHandler](../Election%20Class/public%20Election--removeExternalDataHandler.md)
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---------------------------------------
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### Examples and explanation
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* **[[Manual - DataHandler]](https://github.com/julien-boudry/Condorcet/blob/master/examples/specifics_examples/use_large_election_external_database_drivers.php)**
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