Job

Extensions can have a construct but don't have too.

Without a construct, it's impossible to create a job in the CMS

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Sets a data object for persisting by adding its id and type to the serialised vars

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Return a signature for this queued job

Generate a somewhat random signature

useful if you're want to make sure something is always added

By default jobs should just go into the default processing queue

Static cache manipulation jobs need to run without a user this is because we don't want any session related data to become part of URLs For example stage GET param is injected into URLs when user is logged in This is problematic as stage param must not be present in statically published URLs as they always refer to live content Including stage param in visiting URL is meant to bypass static cache and redirect to admin login this is something we definitely don't want for statically cached pages

Performs setup tasks the first time this job is run.

This is only executed once for every job. If you want to run something on every job restart, use the prepareForRestart method.

Run when an already setup job is being restarted.

Do some processing yourself!

Method for determining whether the job is finished - you may override it if there's more to it than just this

Called when the job is determined to be 'complete'

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Gets custom config settings to use when running the job.

Sets custom config settings to use when the job is run.

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Convenience methods for setting and getting job data

Retrieve some job data

Resolves a queue name to one of the queue constants.

If $queue is already the value of one of the constants, it will be returned. If the queue is unknown, null will be returned.

Get a configuration accessor for this class. Short hand for Config::inst()->get($this->class, .....).

Gets the uninherited value for the given config option

Attempts to locate and call a method dynamically added to a class at runtime if a default cannot be located

You can add extra methods to a class using Extensions}, {@link Object::createMethod() or Object::addWrapperMethod()

Adds any methods from Extension instances attached to this object.

All these methods can then be called directly on the instance (transparently mapped through __call()}), or called explicitly through {@link extend().

Register an callback to invoke that defines extra methods

Return TRUE if a method exists on this object

This should be used rather than PHP's inbuild method_exists() as it takes into account methods added via extensions

Determines if a custom method with this name is defined.

Get meta-data details on a named method

Return the names of all the methods available on this object

Get all public built in methods for this class

Find all methods on the given object.

Add all the methods from an object property.

Add all the methods from an object property (which is an Extension) to this object.

Add a wrapper method - a method which points to another method with a different name. For example, Thumbnail(x) can be wrapped to generateThumbnail(x)

Add callback as a method.

Allows user code to hook into Object::extend prior to control being delegated to extensions. Each callback will be reset once called.

Allows user code to hook into Object::extend after control being delegated to extensions. Each callback will be reset once called.

Adds any methods from Extension instances attached to this object.

All these methods can then be called directly on the instance (transparently mapped through __call()}), or called explicitly through {@link extend().

Add an extension to a specific class.

The preferred method for adding extensions is through YAML config, since it avoids autoloading the class, and is easier to override in more specific configurations.

As an alternative, extensions can be added to a specific class directly in the Object::$extensions array. See SiteTree::$extensions for examples. Keep in mind that the extension will only be applied to new instances, not existing ones (including all instances created through singleton()).

Remove an extension from a class.

Note: This will not remove extensions from parent classes, and must be called directly on the class assigned the extension.

Keep in mind that this won't revert any datamodel additions of the extension at runtime, unless its used before the schema building kicks in (in your _config.php). Doesn't remove the extension from any Object instances which are already created, but will have an effect on new extensions. Clears any previously created singletons through singleton() to avoid side-effects from stale extension information.

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Get extra config sources for this class

Return TRUE if a class has a specified extension.

This supports backwards-compatible format (static Object::has_extension($requiredExtension)) and new format ($object->has_extension($class, $requiredExtension))

Calls a method if available on both this object and all applied Extensions, and then attempts to merge all results into an array

Run the given function on all of this object's extensions. Note that this method originally returned void, so if you wanted to return results, you're hosed

Currently returns an array, with an index resulting every time the function is called. Only adds returns if they're not NULL, to avoid bogus results from methods just defined on the parent extension. This is important for permission-checks through extend, as they use min() to determine if any of the returns is FALSE. As min() doesn't do type checking, an included NULL return would fail the permission checks.

The extension methods are defined during __construct()} in {@link defineMethods().

Get an extension instance attached to this object by name.

Returns TRUE if this object instance has a specific extension applied in $extension_instances. Extension instances are initialized at constructor time, meaning if you use add_extension() afterwards, the added extension will just be added to new instances of the extended class. Use the static method has_extension() to check if a class (not an instance) has a specific extension.

Caution: Don't use singleton()->hasExtension() as it will give you inconsistent results based on when the singleton was first accessed.

Get all extension instances for this specific object instance.

See get_extensions() to get all applied extension classes for this class (not the instance).

This method also provides lazy-population of the extension_instances property.

Use this method to populate newly created job with data

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Implement this method to process URL

Move URL to list of processed URLs and update job step to indicate progress indication of progress is important for jobs which take long time to process jobs that do not indicate progress may be identified as stalled by the queue and may end up paused

Check if job is complete and update the job state if needed

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This function can be overridden to handle the case of failure of specific URL processing such case is not handled by default which results in all such errors being effectively silenced