ElementalPageExtension

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Called when this extension is added to a particular class

Set the owner of this extension.

Temporarily modify the owner. The original owner is ensured to be restored

Clear the current owner, and restore extension to the state prior to the last setOwner()

Returns the owner of this extension.

Helper method to strip eval'ed arguments from a string that's passed to DataObject::$extensions or Object::add_extension().

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Hook for extension-specific validation.

Edit the given query object to support queries for this extension

Update the database schema as required by this extension.

When duplicating a table's structure, remember to duplicate the create options as well. See Versioned->augmentDatabase for an example.

Augment a write-record request.

Make sure there is always an ElementalArea for adding Elements

Extend the owner's onAfterWrite() logic

See DataObject::onAfterWrite() for context.

Extend the owner's onBeforeDelete() logic

See DataObject::onBeforeDelete() for context.

Extend the owner's onAfterDelete() logic

See DataObject::onAfterDelete() for context.

Extension hook {DataObject::requireDefaultRecords}

Extend the owner's populateDefaults() logic

See DataObject::populateDefaults() for context.

Extend the owner's onAfterBuild() logic

See DataObject::onAfterBuild() for context.

Influence the owner's can() permission check value to be disallowed (false), allowed (true) if no other processed results are to disallow, or open (null) to not affect the outcome.

See DataObject::can()} and {@link DataObject::extendedCan() for context.

Influence the owner's canEdit() permission check value to be disallowed (false), allowed (true) if no other processed results are to disallow, or open (null) to not affect the outcome.

See DataObject::canEdit()} and {@link DataObject::extendedCan() for context.

Influence the owner's canDelete() permission check value to be disallowed (false), allowed (true) if no other processed results are to disallow, or open (null) to not affect the outcome.

See DataObject::canDelete()} and {@link DataObject::extendedCan() for context.

Influence the owner's canCreate() permission check value to be disallowed (false), allowed (true) if no other processed results are to disallow, or open (null) to not affect the outcome.

See DataObject::canCreate()} and {@link DataObject::extendedCan() for context.

Define extra database fields

Return a map where the keys are db, has_one, etc, and the values are additional fields/relations to be defined.

Setup the CMS Fields

This function is used to provide modifications to the Validators used on a DataObject.

Caution: Use CompositeValidator->addValidator() to add Validators.

This function is used to provide modifications to the form used for front end forms. DataObject->getFrontEndFields()

Caution: Use FieldList->push() to add fields.

This is used to provide modifications to the form actions used in the CMS. DataObject->getCMSActions().

this function is used to provide modifications to the summary fields in CMS by the extension By default, the summaryField() of its owner will merge more fields defined in the extension's $extra_fields['summary_fields']

this function is used to provide modifications to the fields labels in CMS by the extension By default, the fieldLabels() of its owner will merge more fields defined in the extension's $extra_fields['field_labels']

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

Get meta-data details on a named method

Return the names of all the methods available on this object

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

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.

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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.

Add support for removing extensions with parameters

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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.

Get the available element types for this page type,

Uses allowed_elements, stop_element_inheritance, disallowed_elements in order to get to correct list.

Returns an array of the relation names to ElementAreas. Ignores any has_one fields named Parent as that would indicate that this is child of an existing area

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Set all has_one relationships to an ElementalArea to a valid ID if they're unset

Returns the contents of each ElementalArea has_one's markup for use in Solr or Elastic search indexing

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