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<?php |
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namespace SilverStripe\ORM; |
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use SilverStripe\Core\Config\Config; |
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use SilverStripe\Core\Extension; |
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use SilverStripe\Forms\FieldList; |
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use SilverStripe\ORM\Queries\SQLSelect; |
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use Exception; |
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/** |
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* An extension that adds additional functionality to a {@link DataObject}. |
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* |
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* @property DataObject $owner |
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*/ |
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abstract class DataExtension extends Extension |
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{ |
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public static function unload_extra_statics($class, $extension) |
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{ |
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throw new Exception('unload_extra_statics gone'); |
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} |
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/** |
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* Hook for extension-specific validation. |
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* |
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* @param ValidationResult $validationResult Local validation result |
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* @throws ValidationException |
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*/ |
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public function validate(ValidationResult $validationResult) |
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{ |
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} |
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/** |
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* Edit the given query object to support queries for this extension |
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* |
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* @param SQLSelect $query Query to augment. |
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* @param DataQuery $dataQuery Container DataQuery for this SQLSelect |
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*/ |
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public function augmentSQL(SQLSelect $query, DataQuery $dataQuery = null) |
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{ |
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} |
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/** |
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* Update the database schema as required by this extension. |
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* |
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* When duplicating a table's structure, remember to duplicate the create options |
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* as well. See {@link Versioned->augmentDatabase} for an example. |
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*/ |
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public function augmentDatabase() |
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{ |
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} |
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/** |
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* Augment a write-record request. |
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* |
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* @param array $manipulation Array of operations to augment. |
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*/ |
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public function augmentWrite(&$manipulation) |
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{ |
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} |
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public function onBeforeWrite() |
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{ |
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} |
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public function onAfterWrite() |
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{ |
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} |
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public function onBeforeDelete() |
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{ |
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} |
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public function onAfterDelete() |
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{ |
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} |
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public function requireDefaultRecords() |
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{ |
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} |
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public function populateDefaults() |
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{ |
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} |
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public function can($member) |
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{ |
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} |
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public function canEdit($member) |
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{ |
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} |
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public function canDelete($member) |
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{ |
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} |
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public function canCreate($member) |
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{ |
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} |
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/** |
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* Define extra database fields |
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* |
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* Return a map where the keys are db, has_one, etc, and the values are |
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* additional fields/relations to be defined. |
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* |
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* @param string $class since this method might be called on the class directly |
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* @param string $extension since this can help to extract parameters to help set indexes |
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* @return array Returns a map where the keys are db, has_one, etc, and |
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* the values are additional fields/relations to be defined. |
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*/ |
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public function extraStatics($class = null, $extension = null) |
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{ |
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return array(); |
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} |
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/** |
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* This function is used to provide modifications to the form in the CMS |
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* by the extension. By default, no changes are made. {@link DataObject->getCMSFields()}. |
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* |
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* Please consider using {@link updateFormFields()} to globally add |
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* formfields to the record. The method {@link updateCMSFields()} |
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* should just be used to add or modify tabs, or fields which |
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* are specific to the CMS-context. |
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* |
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* Caution: Use {@link FieldList->addFieldToTab()} to add fields. |
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* |
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* @param FieldList $fields FieldList with a contained TabSet |
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*/ |
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public function updateCMSFields(FieldList $fields) |
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{ |
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} |
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/** |
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* This function is used to provide modifications to the form used |
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* for front end forms. {@link DataObject->getFrontEndFields()} |
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* |
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* Caution: Use {@link FieldList->push()} to add fields. |
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* |
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* @param FieldList $fields FieldList without TabSet nesting |
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*/ |
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public function updateFrontEndFields(FieldList $fields) |
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{ |
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} |
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/** |
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* This is used to provide modifications to the form actions |
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* used in the CMS. {@link DataObject->getCMSActions()}. |
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* |
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* @param FieldList $actions FieldList |
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*/ |
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public function updateCMSActions(FieldList $actions) |
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{ |
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} |
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/** |
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* this function is used to provide modifications to the summary fields in CMS |
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* by the extension |
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* By default, the summaryField() of its owner will merge more fields defined in the extension's |
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* $extra_fields['summary_fields'] |
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* |
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* @param array $fields Array of field names |
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*/ |
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public function updateSummaryFields(&$fields) |
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{ |
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$summary_fields = Config::inst()->get(static::class, 'summary_fields'); |
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if ($summary_fields) { |
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// if summary_fields were passed in numeric array, |
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// convert to an associative array |
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if ($summary_fields && array_key_exists(0, $summary_fields)) { |
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$summary_fields = array_combine(array_values($summary_fields), array_values($summary_fields)); |
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} |
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if ($summary_fields) { |
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$fields = array_merge($fields, $summary_fields); |
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} |
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} |
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} |
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/** |
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* this function is used to provide modifications to the fields labels in CMS |
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* by the extension |
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* By default, the fieldLabels() of its owner will merge more fields defined in the extension's |
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* $extra_fields['field_labels'] |
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* |
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* @param array $labels Array of field labels |
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*/ |
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public function updateFieldLabels(&$labels) |
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{ |
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$field_labels = Config::inst()->get(static::class, 'field_labels'); |
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if ($field_labels) { |
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$labels = array_merge($labels, $field_labels); |
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} |
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} |
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} |
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This check looks for parameters that have been defined for a function or method, but which are not used in the method body.