33 lines
1.8 KiB
Markdown
33 lines
1.8 KiB
Markdown
# PDODocument
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This library allows SQLite and PostgreSQL to be treated as document databases. It is a PHP implementation of the .NET [BitBadger.Documents](https://git.bitbadger.solutions/bit-badger/BitBadger.Documents) library.
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## Add via Composer
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[](https://packagist.org/packages/bit-badger/pdo-document)
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`composer require bit-badger/pdo-document`
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## Configuration
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### Connection Details
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The [PDO data source name](https://www.php.net/manual/en/pdo.construct.php#refsect1-pdo.construct-parameters) must be provided via `Configuration::useDSN()`. `Configuration` also has `$username`, `$password`, and `$options` variables that will be used to construct the PDO object it will use for data access.
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### Document Identifiers
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Each document must have a unique identifier. By default, the library assumes that this is a property or array key named `id`, but this can be controlled by setting `Configuration::$idField`. Once documents exist, this should not be changed.
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IDs can be generated automatically on insert. The `AutoId` enumeration has 4 values:
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- `AutoId::None` is the default; no IDs will be generated
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- `AutoId::Number` will assign max-ID-plus-one to documents with an ID of 0
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- `AutoId::UUID` will generate a v4 <abbr title="Universally Unique Identifier">UUID</abbr> for documents with an empty `string` ID
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- `AutoId::RandomString` will generate a string of letters and numbers for documents with an empty `string` ID; `Configuration::$idStringLength` controls the length of the generated string, and defaults to 16 characters
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In all generated scenarios, if the ID value is not 0 or blank, that ID will be used instead of a generated one.
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## Usage
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Full documentation [is available on the project site](https://bitbadger.solutions/open-source/pdo-document/).
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