mirror of
https://github.com/Respect/Validation.git
synced 2026-03-17 15:50:03 +01:00
7c681fec66I ran the `bin/console spdx --fix` with different strategies for different files. For most of the core classes, since they've been drastically rebuilt, I've run it with the `git-blame` strategy, for for the `src/Validators`, in which the API changed completely but the logic remains the same, I use the `git-log` strategy.
92 lines
2.8 KiB
Markdown
92 lines
2.8 KiB
Markdown
<!--
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SPDX-License-Identifier: MIT
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SPDX-FileCopyrightText: (c) Respect Project Contributors
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SPDX-FileContributor: Alexandre Gomes Gaigalas <alganet@gmail.com>
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SPDX-FileContributor: Henrique Moody <henriquemoody@gmail.com>
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-->
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# PropertyExists
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- `PropertyExists(string $propertyName)`
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Validates if an object property exists.
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```php
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$object = new stdClass;
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$object->name = 'The Respect Panda';
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$object->email = 'therespectpanda@gmail.com';
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v::propertyExists('name')->assert($object);
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// Validation passes successfully
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v::propertyExists('email')->assert($object);
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// Validation passes successfully
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v::propertyExists('website')->assert($object);
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// → `.website` must be present
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```
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## Notes
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This validator will validate public, private, protected, uninitialised, and static properties.
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- To validate a property against a given validator requiring the property to exist, use [Property](Property.md) instead.
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- To validate a property against a given validator only if the property exists, use [PropertyOptional](PropertyOptional.md) instead.
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## Templates
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### `PropertyExists::TEMPLATE_STANDARD`
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| Mode | Template |
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| ---------: | :------------------------------ |
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| `default` | {{subject}} must be present |
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| `inverted` | {{subject}} must not be present |
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## Template placeholders
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| Placeholder | Description |
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| ----------- | ---------------------------------------------------------------- |
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| `subject` | The validated input or the custom validator name (if specified). |
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## Caveats
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`PropertyExists` defines the given `$propertyName` as the path, and because it is a standalone validator without children, it's not possible to display a fully custom name with it.
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When no custom name is set, the path is displayed as `{{name}}`. When a custom name is set, the validation engine prepends the path to the custom name:
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```php
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v::propertyExists('foo')->assert([]);
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// → `.foo` must be present
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v::named('Custom name', v::propertyExists('foo'))->assert([]);
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// → `.foo` (<- Custom name) must be present
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```
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If you want to display only a custom name while checking if a property exists, use [Property](Property.md) with [AlwaysValid](AlwaysValid.md):
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```php
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v::property('foo', v::named('Custom name', v::alwaysValid()))->assert([]);
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// → Custom name must be present
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```
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## Categorization
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- Objects
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- Structures
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## Changelog
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| Version | Description |
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| ------: | :----------------------------------- |
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| 3.0.0 | Created from [Property](Property.md) |
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## See Also
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- [AlwaysValid](AlwaysValid.md)
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- [Attributes](Attributes.md)
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- [Key](Key.md)
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- [KeyExists](KeyExists.md)
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- [KeyOptional](KeyOptional.md)
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- [ObjectType](ObjectType.md)
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- [Property](Property.md)
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- [PropertyOptional](PropertyOptional.md)
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