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Images
======
List images
-----------
.. code-block:: php
$images = $service->listImages();
foreach ($images as $image) {
/** @param $image OpenCloud\Image\Resource\Image */
}
Get image details
-----------------
.. code-block:: php
/** @param $image OpenCloud\Image\Resource\Image */
$image = $service->getImage('{imageId}');
A note on schema classes
~~~~~~~~~~~~~~~~~~~~~~~~
Both ``OpenCloud\Image\Resource\Image`` and ``OpenCloud\Image\Resource\Member``
extend the ``AbstractSchemaResource`` class, which offers some unique functionality.
Because these resources are inherently dynamic - i.e. they are modelled
on dynamic JSON schema - you need to access their state in a different way
than conventional getter/setter methods, and even class properties. For this
reason, they implement SPL's native
`ArrayAccess <http://www.php.net/manual/en/class.arrayaccess.php>`_
interface which allows you to access their state as a conventional
array:
.. code-block:: php
$image = $service->getImage('{imageId}');
$id = $image['id'];
$tags = $image['tags'];
Update image
------------
You can only update your own custom images - you cannot update or delete
base images. The way in which you may update your image is dictated by
its `schema <schemas>`__.
Although you should be able to add new and replace existing properties,
always prepare yourself for a situation where it might be forbidden:
.. code-block:: php
use OpenCloud\Common\Exceptions\ForbiddenOperationException;
try {
$image->update(array(
'name' => 'foo',
'newProperty' => 'bar'
));
} catch (ForbiddenOperationException $e) {
// A 403 Forbidden was returned
}
There are three operations that can take place for each Image property:
* If a ``false`` or ``null`` value is provided, a ``REMOVE`` operation
will occur, removing the property from the JSON document
* If a non-false value is provided and the property does not exist, an
``ADD`` operation will add it to the document
* If a non-false value is provided and the property does exist, a
``REPLACE`` operation will modify the property in the document
Delete image
------------
.. code-block:: php
$image->delete();