VersionedFileExtension
class VersionedFileExtension extends DataExtension (View source)
An extension that adds the ability to replace files with new uploads, and view and roll back to existing versions.
Properties
| protected | SS_Object | $owner | The object this extension is applied to. |
from Extension |
| protected | DataObject | $ownerBaseClass | The base class that this extension was applied to; $this->owner must be one of these |
from Extension |
| public | $class | from Extension |
Methods
Called when this extension is added to a particular class
Helper method to strip eval'ed arguments from a string thats passed to DataObject::$extensions or Object::add_extension().
Update the database schema as required by this extension.
Creates the initial version when the file is created, as well as updating the version records when the parent file is moved.
Define extra database fields
This function is used to provide modifications to the form used for front end forms. DataObject->getFrontEndFields()
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']
Details
__construct()
No description
static
add_to_class(string $class, string $extensionClass, mixed $args = null)
Called when this extension is added to a particular class
setOwner(SS_Object $owner, string $ownerBaseClass = null)
Set the owner of this extension.
clearOwner()
No description
SS_Object
getOwner()
Returns the owner of this extension.
static string
get_classname_without_arguments(string $extensionStr)
Helper method to strip eval'ed arguments from a string thats passed to DataObject::$extensions or Object::add_extension().
static
get_extra_config($class, $extension, $args)
No description
static
unload_extra_statics($class, $extension)
No description
validate(ValidationResult $validationResult)
Hook for extension-specific validation.
augmentSQL(SQLQuery $query)
Edit the given query object to support queries for this extension
augmentDatabase()
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.
augmentWrite(array $manipulation)
Augment a write-record request.
onBeforeWrite()
No description
onAfterWrite()
Creates the initial version when the file is created, as well as updating the version records when the parent file is moved.
onBeforeDelete()
Deletes all saved version of the file as well as the file itself.
onAfterDelete()
No description
requireDefaultRecords()
No description
populateDefaults()
No description
can($member)
No description
canEdit($member)
No description
canDelete($member)
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canCreate($member)
No description
array
extraStatics($class = null, $extension = null)
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.
updateCMSFields(FieldList $fields)
No description
updateFrontEndFields(FieldList $fields)
This function is used to provide modifications to the form used for front end forms. DataObject->getFrontEndFields()
Caution: Use FieldList->push() to add fields.
updateCMSActions(FieldList $actions)
This is used to provide modifications to the form actions used in the CMS. DataObject->getCMSActions().
updateSummaryFields(array $fields)
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']
updateFieldLabels(array $labels)
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']
onAfterUpload()
Since AssetAdmin does not use onBeforeWrite, onAfterUpload is also needed.
int
getVersionNumber()
No description
setVersionNumber(int $version)
No description
savePreviousVersion(int $version)
Handles rolling back to a selected version on save.
bool
createVersion()
Creates a new file version and sets it as the current version.