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PhabricatorCustomField.php
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			<?php

			/**
			* @task apps Building Applications with Custom Fields
			* @task core Core Properties and Field Identity
			* @task proxy Field Proxies
			* @task context Contextual Data
			* @task render Rendering Utilities
			* @task storage Field Storage
			* @task edit Integration with Edit Views
			* @task view Integration with Property Views
			* @task list Integration with List views
			* @task appsearch Integration with ApplicationSearch
			* @task appxaction Integration with ApplicationTransactions
			* @task xactionmail Integration with Transaction Mail
			* @task globalsearch Integration with Global Search
			* @task herald Integration with Herald
			*/
			abstract class PhabricatorCustomField extends Phobject {

			private $viewer;
			private $object;
			private $proxy;

			const ROLE_APPLICATIONTRANSACTIONS = 'ApplicationTransactions';
			const ROLE_TRANSACTIONMAIL = 'ApplicationTransactions.mail';
			const ROLE_APPLICATIONSEARCH = 'ApplicationSearch';
			const ROLE_STORAGE = 'storage';
			const ROLE_DEFAULT = 'default';
			const ROLE_EDIT = 'edit';
			const ROLE_VIEW = 'view';
			const ROLE_LIST = 'list';
			const ROLE_GLOBALSEARCH = 'GlobalSearch';
			const ROLE_CONDUIT = 'conduit';
			const ROLE_HERALD = 'herald';


			/* -( Building Applications with Custom Fields )--------------------------- */


			/**
			* @task apps
			*/
			public static function getObjectFields(
			PhabricatorCustomFieldInterface $object,
			$role) {

			try {
			$attachment = $object->getCustomFields();
			} catch (PhabricatorDataNotAttachedException $ex) {
			$attachment = new PhabricatorCustomFieldAttachment();
			$object->attachCustomFields($attachment);
			}

			try {
			$field_list = $attachment->getCustomFieldList($role);
			} catch (PhabricatorCustomFieldNotAttachedException $ex) {
			$base_class = $object->getCustomFieldBaseClass();

			$spec = $object->getCustomFieldSpecificationForRole($role);
			if (!is_array($spec)) {
			throw new Exception(
			pht(
			"Expected an array from %s for object of class '%s'.",
			'getCustomFieldSpecificationForRole()',
			get_class($object)));
			}

			$fields = self::buildFieldList(
			$base_class,
			$spec,
			$object);

			foreach ($fields as $key => $field) {
			if (!$field->shouldEnableForRole($role)) {
			unset($fields[$key]);
			}
			}

			foreach ($fields as $field) {
			$field->setObject($object);
			}

			$field_list = new PhabricatorCustomFieldList($fields);
			$attachment->addCustomFieldList($role, $field_list);
			}

			return $field_list;
			}


			/**
			* @task apps
			*/
			public static function getObjectField(
			PhabricatorCustomFieldInterface $object,
			$role,
			$field_key) {

			$fields = self::getObjectFields($object, $role)->getFields();

			return idx($fields, $field_key);
			}


			/**
			* @task apps
			*/
			public static function buildFieldList(
			$base_class,
			array $spec,
			$object,
			array $options = array()) {

			PhutilTypeSpec::checkMap(
			$options,
			array(
			'withDisabled' => 'optional bool',
			));

			$field_objects = id(new PhutilSymbolLoader())
			->setAncestorClass($base_class)
			->loadObjects();

			$fields = array();
			$from_map = array();
			foreach ($field_objects as $field_object) {
			$current_class = get_class($field_object);
			foreach ($field_object->createFields($object) as $field) {
			$key = $field->getFieldKey();
			if (isset($fields[$key])) {
			throw new Exception(
			pht(
			"Both '%s' and '%s' define a custom field with ".
			"field key '%s'. Field keys must be unique.",
			$from_map[$key],
			$current_class,
			$key));
			}
			$from_map[$key] = $current_class;
			$fields[$key] = $field;
			}
			}

			foreach ($fields as $key => $field) {
			if (!$field->isFieldEnabled()) {
			unset($fields[$key]);
			}
			}

			$fields = array_select_keys($fields, array_keys($spec)) + $fields;

			if (empty($options['withDisabled'])) {
			foreach ($fields as $key => $field) {
			$config = idx($spec, $key, array()) + array(
			'disabled' => $field->shouldDisableByDefault(),
			);

			if (!empty($config['disabled'])) {
			if ($field->canDisableField()) {
			unset($fields[$key]);
			}
			}
			}
			}

			return $fields;
			}


			/* -( Core Properties and Field Identity )--------------------------------- */


			/**
			* Return a key which uniquely identifies this field, like
			* "mycompany:dinosaur:count". Normally you should provide some level of
			* namespacing to prevent collisions.
			*
			* @return string String which uniquely identifies this field.
			* @task core
			*/
			public function getFieldKey() {
			if ($this->proxy) {
			return $this->proxy->getFieldKey();
			}
			throw new PhabricatorCustomFieldImplementationIncompleteException(
			$this,
			$field_key_is_incomplete = true);
			}


			/**
			* Return a human-readable field name.
			*
			* @return string Human readable field name.
			* @task core
			*/
			public function getFieldName() {
			if ($this->proxy) {
			return $this->proxy->getFieldName();
			}
			return $this->getFieldKey();
			}


			/**
			* Return a short, human-readable description of the field's behavior. This
			* provides more context to administrators when they are customizing fields.
			*
			* @return string\|null Optional human-readable description.
			* @task core
			*/
			public function getFieldDescription() {
			if ($this->proxy) {
			return $this->proxy->getFieldDescription();
			}
			return null;
			}


			/**
			* Most field implementations are unique, in that one class corresponds to
			* one field. However, some field implementations are general and a single
			* implementation may drive several fields.
			*
			* For general implementations, the general field implementation can return
			* multiple field instances here.
			*
			* @param object The object to create fields for.
			* @return list<PhabricatorCustomField> List of fields.
			* @task core
			*/
			public function createFields($object) {
			return array($this);
			}


			/**
			* You can return `false` here if the field should not be enabled for any
			* role. For example, it might depend on something (like an application or
			* library) which isn't installed, or might have some global configuration
			* which allows it to be disabled.
			*
			* @return bool False to completely disable this field for all roles.
			* @task core
			*/
			public function isFieldEnabled() {
			if ($this->proxy) {
			return $this->proxy->isFieldEnabled();
			}
			return true;
			}


			/**
			* Low level selector for field availability. Fields can appear in different
			* roles (like an edit view, a list view, etc.), but not every field needs
			* to appear everywhere. Fields that are disabled in a role won't appear in
			* that context within applications.
			*
			* Normally, you do not need to override this method. Instead, override the
			* methods specific to roles you want to enable. For example, implement
			* @{method:shouldUseStorage()} to activate the `'storage'` role.
			*
			* @return bool True to enable the field for the given role.
			* @task core
			*/
			public function shouldEnableForRole($role) {

			// NOTE: All of these calls proxy individually, so we don't need to
			// proxy this call as a whole.

			switch ($role) {
			case self::ROLE_APPLICATIONTRANSACTIONS:
			return $this->shouldAppearInApplicationTransactions();
			case self::ROLE_APPLICATIONSEARCH:
			return $this->shouldAppearInApplicationSearch();
			case self::ROLE_STORAGE:
			return $this->shouldUseStorage();
			case self::ROLE_EDIT:
			return $this->shouldAppearInEditView();
			case self::ROLE_VIEW:
			return $this->shouldAppearInPropertyView();
			case self::ROLE_LIST:
			return $this->shouldAppearInListView();
			case self::ROLE_GLOBALSEARCH:
			return $this->shouldAppearInGlobalSearch();
			case self::ROLE_CONDUIT:
			return $this->shouldAppearInConduitDictionary();
			case self::ROLE_TRANSACTIONMAIL:
			return $this->shouldAppearInTransactionMail();
			case self::ROLE_HERALD:
			return $this->shouldAppearInHerald();
			case self::ROLE_DEFAULT:
			return true;
			default:
			throw new Exception(pht("Unknown field role '%s'!", $role));
			}
			}


			/**
			* Allow administrators to disable this field. Most fields should allow this,
			* but some are fundamental to the behavior of the application and can be
			* locked down to avoid chaos, disorder, and the decline of civilization.
			*
			* @return bool False to prevent this field from being disabled through
			* configuration.
			* @task core
			*/
			public function canDisableField() {
			return true;
			}

			public function shouldDisableByDefault() {
			return false;
			}


			/**
			* Return an index string which uniquely identifies this field.
			*
			* @return string Index string which uniquely identifies this field.
			* @task core
			*/
			final public function getFieldIndex() {
			return PhabricatorHash::digestForIndex($this->getFieldKey());
			}


			/* -( Field Proxies )------------------------------------------------------ */


			/**
			* Proxies allow a field to use some other field's implementation for most
			* of their behavior while still subclassing an application field. When a
			* proxy is set for a field with @{method:setProxy}, all of its methods will
			* call through to the proxy by default.
			*
			* This is most commonly used to implement configuration-driven custom fields
			* using @{class:PhabricatorStandardCustomField}.
			*
			* This method must be overridden to return `true` before a field can accept
			* proxies.
			*
			* @return bool True if you can @{method:setProxy} this field.
			* @task proxy
			*/
			public function canSetProxy() {
			if ($this instanceof PhabricatorStandardCustomFieldInterface) {
			return true;
			}
			return false;
			}


			/**
			* Set the proxy implementation for this field. See @{method:canSetProxy} for
			* discussion of field proxies.
			*
			* @param PhabricatorCustomField Field implementation.
			* @return this
			*/
			final public function setProxy(PhabricatorCustomField $proxy) {
			if (!$this->canSetProxy()) {
			throw new PhabricatorCustomFieldNotProxyException($this);
			}

			$this->proxy = $proxy;
			return $this;
			}


			/**
			* Get the field's proxy implementation, if any. For discussion, see
			* @{method:canSetProxy}.
			*
			* @return PhabricatorCustomField\|null Proxy field, if one is set.
			*/
			final public function getProxy() {
			return $this->proxy;
			}


			/* -( Contextual Data )---------------------------------------------------- */


			/**
			* Sets the object this field belongs to.
			*
			* @param PhabricatorCustomFieldInterface The object this field belongs to.
			* @return this
			* @task context
			*/
			final public function setObject(PhabricatorCustomFieldInterface $object) {
			if ($this->proxy) {
			$this->proxy->setObject($object);
			return $this;
			}

			$this->object = $object;
			$this->didSetObject($object);
			return $this;
			}


			/**
			* Read object data into local field storage, if applicable.
			*
			* @param PhabricatorCustomFieldInterface The object this field belongs to.
			* @return this
			* @task context
			*/
			public function readValueFromObject(PhabricatorCustomFieldInterface $object) {
			if ($this->proxy) {
			$this->proxy->readValueFromObject($object);
			}
			return $this;
			}


			/**
			* Get the object this field belongs to.
			*
			* @return PhabricatorCustomFieldInterface The object this field belongs to.
			* @task context
			*/
			final public function getObject() {
			if ($this->proxy) {
			return $this->proxy->getObject();
			}

			return $this->object;
			}


			/**
			* This is a hook, primarily for subclasses to load object data.
			*
			* @return PhabricatorCustomFieldInterface The object this field belongs to.
			* @return void
			*/
			protected function didSetObject(PhabricatorCustomFieldInterface $object) {
			return;
			}


			/**
			* @task context
			*/
			final public function setViewer(PhabricatorUser $viewer) {
			if ($this->proxy) {
			$this->proxy->setViewer($viewer);
			return $this;
			}

			$this->viewer = $viewer;
			return $this;
			}


			/**
			* @task context
			*/
			final public function getViewer() {
			if ($this->proxy) {
			return $this->proxy->getViewer();
			}

			return $this->viewer;
			}


			/**
			* @task context
			*/
			final protected function requireViewer() {
			if ($this->proxy) {
			return $this->proxy->requireViewer();
			}

			if (!$this->viewer) {
			throw new PhabricatorCustomFieldDataNotAvailableException($this);
			}
			return $this->viewer;
			}


			/* -( Rendering Utilities )------------------------------------------------ */


			/**
			* @task render
			*/
			protected function renderHandleList(array $handles) {
			if (!$handles) {
			return null;
			}

			$out = array();
			foreach ($handles as $handle) {
			$out[] = $handle->renderLink();
			}

			return phutil_implode_html(phutil_tag('br'), $out);
			}


			/* -( Storage )------------------------------------------------------------ */


			/**
			* Return true to use field storage.
			*
			* Fields which can be edited by the user will most commonly use storage,
			* while some other types of fields (for instance, those which just display
			* information in some stylized way) may not. Many builtin fields do not use
			* storage because their data is available on the object itself.
			*
			* If you implement this, you must also implement @{method:getValueForStorage}
			* and @{method:setValueFromStorage}.
			*
			* @return bool True to use storage.
			* @task storage
			*/
			public function shouldUseStorage() {
			if ($this->proxy) {
			return $this->proxy->shouldUseStorage();
			}
			return false;
			}


			/**
			* Return a new, empty storage object. This should be a subclass of
			* @{class:PhabricatorCustomFieldStorage} which is bound to the application's
			* database.
			*
			* @return PhabricatorCustomFieldStorage New empty storage object.
			* @task storage
			*/
			public function newStorageObject() {
			// NOTE: This intentionally isn't proxied, to avoid call cycles.
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/**
			* Return a serialized representation of the field value, appropriate for
			* storing in auxiliary field storage. You must implement this method if
			* you implement @{method:shouldUseStorage}.
			*
			* If the field value is a scalar, it can be returned unmodiifed. If not,
			* it should be serialized (for example, using JSON).
			*
			* @return string Serialized field value.
			* @task storage
			*/
			public function getValueForStorage() {
			if ($this->proxy) {
			return $this->proxy->getValueForStorage();
			}
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/**
			* Set the field's value given a serialized storage value. This is called
			* when the field is loaded; if no data is available, the value will be
			* null. You must implement this method if you implement
			* @{method:shouldUseStorage}.
			*
			* Usually, the value can be loaded directly. If it isn't a scalar, you'll
			* need to undo whatever serialization you applied in
			* @{method:getValueForStorage}.
			*
			* @param string\|null Serialized field representation (from
			* @{method:getValueForStorage}) or null if no value has
			* ever been stored.
			* @return this
			* @task storage
			*/
			public function setValueFromStorage($value) {
			if ($this->proxy) {
			return $this->proxy->setValueFromStorage($value);
			}
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/* -( ApplicationSearch )-------------------------------------------------- */


			/**
			* Appearing in ApplicationSearch allows a field to be indexed and searched
			* for.
			*
			* @return bool True to appear in ApplicationSearch.
			* @task appsearch
			*/
			public function shouldAppearInApplicationSearch() {
			if ($this->proxy) {
			return $this->proxy->shouldAppearInApplicationSearch();
			}
			return false;
			}


			/**
			* Return one or more indexes which this field can meaningfully query against
			* to implement ApplicationSearch.
			*
			* Normally, you should build these using @{method:newStringIndex} and
			* @{method:newNumericIndex}. For example, if a field holds a numeric value
			* it might return a single numeric index:
			*
			* return array($this->newNumericIndex($this->getValue()));
			*
			* If a field holds a more complex value (like a list of users), it might
			* return several string indexes:
			*
			* $indexes = array();
			* foreach ($this->getValue() as $phid) {
			* $indexes[] = $this->newStringIndex($phid);
			* }
			* return $indexes;
			*
			* @return list<PhabricatorCustomFieldIndexStorage> List of indexes.
			* @task appsearch
			*/
			public function buildFieldIndexes() {
			if ($this->proxy) {
			return $this->proxy->buildFieldIndexes();
			}
			return array();
			}


			/**
			* Return an index against which this field can be meaningfully ordered
			* against to implement ApplicationSearch.
			*
			* This should be a single index, normally built using
			* @{method:newStringIndex} and @{method:newNumericIndex}.
			*
			* The value of the index is not used.
			*
			* Return null from this method if the field can not be ordered.
			*
			* @return PhabricatorCustomFieldIndexStorage A single index to order by.
			* @task appsearch
			*/
			public function buildOrderIndex() {
			if ($this->proxy) {
			return $this->proxy->buildOrderIndex();
			}
			return null;
			}


			/**
			* Build a new empty storage object for storing string indexes. Normally,
			* this should be a concrete subclass of
			* @{class:PhabricatorCustomFieldStringIndexStorage}.
			*
			* @return PhabricatorCustomFieldStringIndexStorage Storage object.
			* @task appsearch
			*/
			protected function newStringIndexStorage() {
			// NOTE: This intentionally isn't proxied, to avoid call cycles.
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/**
			* Build a new empty storage object for storing string indexes. Normally,
			* this should be a concrete subclass of
			* @{class:PhabricatorCustomFieldStringIndexStorage}.
			*
			* @return PhabricatorCustomFieldStringIndexStorage Storage object.
			* @task appsearch
			*/
			protected function newNumericIndexStorage() {
			// NOTE: This intentionally isn't proxied, to avoid call cycles.
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/**
			* Build and populate storage for a string index.
			*
			* @param string String to index.
			* @return PhabricatorCustomFieldStringIndexStorage Populated storage.
			* @task appsearch
			*/
			protected function newStringIndex($value) {
			if ($this->proxy) {
			return $this->proxy->newStringIndex();
			}

			$key = $this->getFieldIndex();
			return $this->newStringIndexStorage()
			->setIndexKey($key)
			->setIndexValue($value);
			}


			/**
			* Build and populate storage for a numeric index.
			*
			* @param string Numeric value to index.
			* @return PhabricatorCustomFieldNumericIndexStorage Populated storage.
			* @task appsearch
			*/
			protected function newNumericIndex($value) {
			if ($this->proxy) {
			return $this->proxy->newNumericIndex();
			}
			$key = $this->getFieldIndex();
			return $this->newNumericIndexStorage()
			->setIndexKey($key)
			->setIndexValue($value);
			}


			/**
			* Read a query value from a request, for storage in a saved query. Normally,
			* this method should, e.g., read a string out of the request.
			*
			* @param PhabricatorApplicationSearchEngine Engine building the query.
			* @param AphrontRequest Request to read from.
			* @return wild
			* @task appsearch
			*/
			public function readApplicationSearchValueFromRequest(
			PhabricatorApplicationSearchEngine $engine,
			AphrontRequest $request) {
			if ($this->proxy) {
			return $this->proxy->readApplicationSearchValueFromRequest(
			$engine,
			$request);
			}
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/**
			* Constrain a query, given a field value. Generally, this method should
			* use `with...()` methods to apply filters or other constraints to the
			* query.
			*
			* @param PhabricatorApplicationSearchEngine Engine executing the query.
			* @param PhabricatorCursorPagedPolicyAwareQuery Query to constrain.
			* @param wild Constraint provided by the user.
			* @return void
			* @task appsearch
			*/
			public function applyApplicationSearchConstraintToQuery(
			PhabricatorApplicationSearchEngine $engine,
			PhabricatorCursorPagedPolicyAwareQuery $query,
			$value) {
			if ($this->proxy) {
			return $this->proxy->applyApplicationSearchConstraintToQuery(
			$engine,
			$query,
			$value);
			}
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/**
			* Append search controls to the interface.
			*
			* @param PhabricatorApplicationSearchEngine Engine constructing the form.
			* @param AphrontFormView The form to update.
			* @param wild Value from the saved query.
			* @return void
			* @task appsearch
			*/
			public function appendToApplicationSearchForm(
			PhabricatorApplicationSearchEngine $engine,
			AphrontFormView $form,
			$value) {
			if ($this->proxy) {
			return $this->proxy->appendToApplicationSearchForm(
			$engine,
			$form,
			$value);
			}
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/* -( ApplicationTransactions )-------------------------------------------- */


			/**
			* Appearing in ApplicationTrasactions allows a field to be edited using
			* standard workflows.
			*
			* @return bool True to appear in ApplicationTransactions.
			* @task appxaction
			*/
			public function shouldAppearInApplicationTransactions() {
			if ($this->proxy) {
			return $this->proxy->shouldAppearInApplicationTransactions();
			}
			return false;
			}


			/**
			* @task appxaction
			*/
			public function getApplicationTransactionType() {
			if ($this->proxy) {
			return $this->proxy->getApplicationTransactionType();
			}
			return PhabricatorTransactions::TYPE_CUSTOMFIELD;
			}


			/**
			* @task appxaction
			*/
			public function getApplicationTransactionMetadata() {
			if ($this->proxy) {
			return $this->proxy->getApplicationTransactionMetadata();
			}
			return array();
			}


			/**
			* @task appxaction
			*/
			public function getOldValueForApplicationTransactions() {
			if ($this->proxy) {
			return $this->proxy->getOldValueForApplicationTransactions();
			}
			return $this->getValueForStorage();
			}


			/**
			* @task appxaction
			*/
			public function getNewValueForApplicationTransactions() {
			if ($this->proxy) {
			return $this->proxy->getNewValueForApplicationTransactions();
			}
			return $this->getValueForStorage();
			}


			/**
			* @task appxaction
			*/
			public function setValueFromApplicationTransactions($value) {
			if ($this->proxy) {
			return $this->proxy->setValueFromApplicationTransactions($value);
			}
			return $this->setValueFromStorage($value);
			}


			/**
			* @task appxaction
			*/
			public function getNewValueFromApplicationTransactions(
			PhabricatorApplicationTransaction $xaction) {
			if ($this->proxy) {
			return $this->proxy->getNewValueFromApplicationTransactions($xaction);
			}
			return $xaction->getNewValue();
			}


			/**
			* @task appxaction
			*/
			public function getApplicationTransactionHasEffect(
			PhabricatorApplicationTransaction $xaction) {
			if ($this->proxy) {
			return $this->proxy->getApplicationTransactionHasEffect($xaction);
			}
			return ($xaction->getOldValue() !== $xaction->getNewValue());
			}


			/**
			* @task appxaction
			*/
			public function applyApplicationTransactionInternalEffects(
			PhabricatorApplicationTransaction $xaction) {
			if ($this->proxy) {
			return $this->proxy->applyApplicationTransactionInternalEffects($xaction);
			}
			return;
			}


			/**
			* @task appxaction
			*/
			public function getApplicationTransactionRemarkupBlocks(
			PhabricatorApplicationTransaction $xaction) {
			if ($this->proxy) {
			return $this->proxy->getApplicationTransactionRemarkupBlocks($xaction);
			}
			return array();
			}


			/**
			* @task appxaction
			*/
			public function applyApplicationTransactionExternalEffects(
			PhabricatorApplicationTransaction $xaction) {
			if ($this->proxy) {
			return $this->proxy->applyApplicationTransactionExternalEffects($xaction);
			}

			if (!$this->shouldEnableForRole(self::ROLE_STORAGE)) {
			return;
			}

			$this->setValueFromApplicationTransactions($xaction->getNewValue());
			$value = $this->getValueForStorage();

			$table = $this->newStorageObject();
			$conn_w = $table->establishConnection('w');

			if ($value === null) {
			queryfx(
			$conn_w,
			'DELETE FROM %T WHERE objectPHID = %s AND fieldIndex = %s',
			$table->getTableName(),
			$this->getObject()->getPHID(),
			$this->getFieldIndex());
			} else {
			queryfx(
			$conn_w,
			'INSERT INTO %T (objectPHID, fieldIndex, fieldValue)
			VALUES (%s, %s, %s)
			ON DUPLICATE KEY UPDATE fieldValue = VALUES(fieldValue)',
			$table->getTableName(),
			$this->getObject()->getPHID(),
			$this->getFieldIndex(),
			$value);
			}

			return;
			}


			/**
			* Validate transactions for an object. This allows you to raise an error
			* when a transaction would set a field to an invalid value, or when a field
			* is required but no transactions provide value.
			*
			* @param PhabricatorLiskDAO Editor applying the transactions.
			* @param string Transaction type. This type is always
			* `PhabricatorTransactions::TYPE_CUSTOMFIELD`, it is provided for
			* convenience when constructing exceptions.
			* @param list<PhabricatorApplicationTransaction> Transactions being applied,
			* which may be empty if this field is not being edited.
			* @return list<PhabricatorApplicationTransactionValidationError> Validation
			* errors.
			*
			* @task appxaction
			*/
			public function validateApplicationTransactions(
			PhabricatorApplicationTransactionEditor $editor,
			$type,
			array $xactions) {
			if ($this->proxy) {
			return $this->proxy->validateApplicationTransactions(
			$editor,
			$type,
			$xactions);
			}
			return array();
			}

			public function getApplicationTransactionTitle(
			PhabricatorApplicationTransaction $xaction) {
			if ($this->proxy) {
			return $this->proxy->getApplicationTransactionTitle(
			$xaction);
			}

			$author_phid = $xaction->getAuthorPHID();
			return pht(
			'%s updated this object.',
			$xaction->renderHandleLink($author_phid));
			}

			public function getApplicationTransactionTitleForFeed(
			PhabricatorApplicationTransaction $xaction) {
			if ($this->proxy) {
			return $this->proxy->getApplicationTransactionTitleForFeed(
			$xaction);
			}

			$author_phid = $xaction->getAuthorPHID();
			$object_phid = $xaction->getObjectPHID();
			return pht(
			'%s updated %s.',
			$xaction->renderHandleLink($author_phid),
			$xaction->renderHandleLink($object_phid));
			}


			public function getApplicationTransactionHasChangeDetails(
			PhabricatorApplicationTransaction $xaction) {
			if ($this->proxy) {
			return $this->proxy->getApplicationTransactionHasChangeDetails(
			$xaction);
			}
			return false;
			}

			public function getApplicationTransactionChangeDetails(
			PhabricatorApplicationTransaction $xaction,
			PhabricatorUser $viewer) {
			if ($this->proxy) {
			return $this->proxy->getApplicationTransactionChangeDetails(
			$xaction,
			$viewer);
			}
			return null;
			}

			public function getApplicationTransactionRequiredHandlePHIDs(
			PhabricatorApplicationTransaction $xaction) {
			if ($this->proxy) {
			return $this->proxy->getApplicationTransactionRequiredHandlePHIDs(
			$xaction);
			}
			return array();
			}

			public function shouldHideInApplicationTransactions(
			PhabricatorApplicationTransaction $xaction) {
			if ($this->proxy) {
			return $this->proxy->shouldHideInApplicationTransactions($xaction);
			}
			return false;
			}


			/* -( Transaction Mail )--------------------------------------------------- */


			/**
			* @task xactionmail
			*/
			public function shouldAppearInTransactionMail() {
			if ($this->proxy) {
			return $this->proxy->shouldAppearInTransactionMail();
			}
			return false;
			}


			/**
			* @task xactionmail
			*/
			public function updateTransactionMailBody(
			PhabricatorMetaMTAMailBody $body,
			PhabricatorApplicationTransactionEditor $editor,
			array $xactions) {
			if ($this->proxy) {
			return $this->proxy->updateTransactionMailBody($body, $editor, $xactions);
			}
			return;
			}


			/* -( Edit View )---------------------------------------------------------- */


			public function getEditEngineFields(PhabricatorEditEngine $engine) {
			$field = $this->newStandardEditField($engine);

			return array(
			$field,
			);
			}

			protected function newEditField() {
			$field = id(new PhabricatorCustomFieldEditField())
			->setCustomField($this);

			$http_type = $this->getHTTPParameterType();
			if ($http_type) {
			$field->setCustomFieldHTTPParameterType($http_type);
			}

			return $field;
			}

			protected function newStandardEditField() {
			if ($this->proxy) {
			return $this->proxy->newStandardEditField();
			}

			return $this->newEditField()
			->setKey($this->getFieldKey())
			->setEditTypeKey('custom.'.$this->getFieldKey())
			->setLabel($this->getFieldName())
			->setDescription($this->getFieldDescription())
			->setTransactionType($this->getApplicationTransactionType())
			->setValue($this->getNewValueForApplicationTransactions());
			}

			protected function getHTTPParameterType() {
			if ($this->proxy) {
			return $this->proxy->getHTTPParameterType();
			}
			return null;
			}

			/**
			* @task edit
			*/
			public function shouldAppearInEditView() {
			if ($this->proxy) {
			return $this->proxy->shouldAppearInEditView();
			}
			return false;
			}


			/**
			* @task edit
			*/
			public function readValueFromRequest(AphrontRequest $request) {
			if ($this->proxy) {
			return $this->proxy->readValueFromRequest($request);
			}
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/**
			* @task edit
			*/
			public function getRequiredHandlePHIDsForEdit() {
			if ($this->proxy) {
			return $this->proxy->getRequiredHandlePHIDsForEdit();
			}
			return array();
			}


			/**
			* @task edit
			*/
			public function getInstructionsForEdit() {
			if ($this->proxy) {
			return $this->proxy->getInstructionsForEdit();
			}
			return null;
			}


			/**
			* @task edit
			*/
			public function renderEditControl(array $handles) {
			if ($this->proxy) {
			return $this->proxy->renderEditControl($handles);
			}
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/* -( Property View )------------------------------------------------------ */


			/**
			* @task view
			*/
			public function shouldAppearInPropertyView() {
			if ($this->proxy) {
			return $this->proxy->shouldAppearInPropertyView();
			}
			return false;
			}


			/**
			* @task view
			*/
			public function renderPropertyViewLabel() {
			if ($this->proxy) {
			return $this->proxy->renderPropertyViewLabel();
			}
			return $this->getFieldName();
			}


			/**
			* @task view
			*/
			public function renderPropertyViewValue(array $handles) {
			if ($this->proxy) {
			return $this->proxy->renderPropertyViewValue($handles);
			}
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/**
			* @task view
			*/
			public function getStyleForPropertyView() {
			if ($this->proxy) {
			return $this->proxy->getStyleForPropertyView();
			}
			return 'property';
			}


			/**
			* @task view
			*/
			public function getIconForPropertyView() {
			if ($this->proxy) {
			return $this->proxy->getIconForPropertyView();
			}
			return null;
			}


			/**
			* @task view
			*/
			public function getRequiredHandlePHIDsForPropertyView() {
			if ($this->proxy) {
			return $this->proxy->getRequiredHandlePHIDsForPropertyView();
			}
			return array();
			}


			/* -( List View )---------------------------------------------------------- */


			/**
			* @task list
			*/
			public function shouldAppearInListView() {
			if ($this->proxy) {
			return $this->proxy->shouldAppearInListView();
			}
			return false;
			}


			/**
			* @task list
			*/
			public function renderOnListItem(PHUIObjectItemView $view) {
			if ($this->proxy) {
			return $this->proxy->renderOnListItem($view);
			}
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/* -( Global Search )------------------------------------------------------ */


			/**
			* @task globalsearch
			*/
			public function shouldAppearInGlobalSearch() {
			if ($this->proxy) {
			return $this->proxy->shouldAppearInGlobalSearch();
			}
			return false;
			}


			/**
			* @task globalsearch
			*/
			public function updateAbstractDocument(
			PhabricatorSearchAbstractDocument $document) {
			if ($this->proxy) {
			return $this->proxy->updateAbstractDocument($document);
			}
			return $document;
			}


			/* -( Conduit )------------------------------------------------------------ */


			/**
			* @task conduit
			*/
			public function shouldAppearInConduitDictionary() {
			if ($this->proxy) {
			return $this->proxy->shouldAppearInConduitDictionary();
			}
			return false;
			}


			/**
			* @task conduit
			*/
			public function getConduitDictionaryValue() {
			if ($this->proxy) {
			return $this->proxy->getConduitDictionaryValue();
			}
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			public function shouldAppearInConduitTransactions() {
			if ($this->proxy) {
			return $this->proxy->shouldAppearInConduitDictionary();
			}
			return false;
			}


			/* -( Herald )------------------------------------------------------------- */


			/**
			* Return `true` to make this field available in Herald.
			*
			* @return bool True to expose the field in Herald.
			* @task herald
			*/
			public function shouldAppearInHerald() {
			if ($this->proxy) {
			return $this->proxy->shouldAppearInHerald();
			}
			return false;
			}


			/**
			* Get the name of the field in Herald. By default, this uses the
			* normal field name.
			*
			* @return string Herald field name.
			* @task herald
			*/
			public function getHeraldFieldName() {
			if ($this->proxy) {
			return $this->proxy->getHeraldFieldName();
			}
			return $this->getFieldName();
			}


			/**
			* Get the field value for evaluation by Herald.
			*
			* @return wild Field value.
			* @task herald
			*/
			public function getHeraldFieldValue() {
			if ($this->proxy) {
			return $this->proxy->getHeraldFieldValue();
			}
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/**
			* Get the available conditions for this field in Herald.
			*
			* @return list<const> List of Herald condition constants.
			* @task herald
			*/
			public function getHeraldFieldConditions() {
			if ($this->proxy) {
			return $this->proxy->getHeraldFieldConditions();
			}
			throw new PhabricatorCustomFieldImplementationIncompleteException($this);
			}


			/**
			* Get the Herald value type for the given condition.
			*
			* @param const Herald condition constant.
			* @return const\|null Herald value type, or null to use the default.
			* @task herald
			*/
			public function getHeraldFieldValueType($condition) {
			if ($this->proxy) {
			return $this->proxy->getHeraldFieldValueType($condition);
			}
			return null;
			}


			}

phab/src/infrastructure/customfield/field/PhabricatorCustomField.php7ce84cc27b81feature/testing

PhabricatorCustomField.phpView Options

phab/src/infrastructure/customfield/field/PhabricatorCustomField.php
7ce84cc27b81feature/testing

PhabricatorCustomField.php
View Options