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title: danog\MadelineProto\Settings\Database\DatabaseAbstract: Base class for database backends.
description: 

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# `danog\MadelineProto\Settings\Database\DatabaseAbstract`
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> Author: Daniil Gentili <daniil@daniil.it>  
  

Base class for database backends.  




## Method list:
* `getKey(): string`
* `getCacheTtl(): int`
* `setCacheTtl(int|string $cacheTtl): self`
* `getPassword(): string`
* `setPassword(string $password): self`
* `getDatabase(): string|int`
* `getUri(): string`
* `setDatabase(int|string $database): self`
* `setUri(string $uri): self`
* `hasChanged(): bool`

## Methods:
### `getKey(): string`

Get DB key.


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### `getCacheTtl(): int`

Get for how long to keep records in memory after last read, for cached backends.


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### `setCacheTtl(int|string $cacheTtl): self`

Set for how long to keep records in memory after last read, for cached backends.
The cache TTL identifier can be a string like '+5 minutes'.

Parameters:
* `$cacheTtl`: `int|string` For how long to keep records in memory after last read, for cached backends.  


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### `getPassword(): string`

Get password.


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### `setPassword(string $password): self`

Set password.


Parameters:
* `$password`: `string` Password.  


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### `getDatabase(): string|int`

Get database name/ID.


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### `getUri(): string`

Get database URI.


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### `setDatabase(int|string $database): self`

Set database name/ID.


Parameters:
* `$database`: `int|string`   


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### `setUri(string $uri): self`

Set database URI.


Parameters:
* `$uri`: `string`   


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### `hasChanged(): bool`

Get whether this setting was changed, also applies changes.


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