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phorge/src/applications/search/field/PhabricatorSearchField.php
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PhabricatorSearchField.php
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<?php
/**
* @task config Configuring Fields
* @task error Handling Errors
* @task io Reading and Writing Field Values
* @task util Utility Methods
*/
abstract class PhabricatorSearchField extends Phobject {
private $key;
private $viewer;
private $value;
private $label;
private $aliases = array();
private $errors = array();
/* -( Configuring Fields )------------------------------------------------- */
/**
* Set the primary key for the field, like `projectPHIDs`.
*
* You can set human-readable aliases with @{method:setAliases}.
*
* The key should be a short, unique (within a search engine) string which
* does not contain any special characters.
*
* @param string Unique key which identifies the field.
* @return this
* @task config
*/
public function setKey($key) {
$this->key = $key;
return $this;
}
/**
* Get the field's key.
*
* @return string Unique key for this field.
* @task config
*/
public function getKey() {
return $this->key;
}
/**
* Set a human-readable label for the field.
*
* This should be a short text string, like "Reviewers" or "Colors".
*
* @param string Short, human-readable field label.
* @return this
* task config
*/
public function setLabel($label) {
$this->label = $label;
return $this;
}
/**
* Get the field's human-readable label.
*
* @return string Short, human-readable field label.
* @task config
*/
public function getLabel() {
return $this->label;
}
/**
* Set the acting viewer.
*
* Engines do not need to do this explicitly; it will be done on their
* behalf by the caller.
*
* @param PhabricatorUser Viewer.
* @return this
* @task config
*/
public function setViewer(PhabricatorUser $viewer) {
$this->viewer = $viewer;
return $this;
}
/**
* Get the acting viewer.
*
* @return PhabricatorUser Viewer.
* @task config
*/
public function getViewer() {
return $this->viewer;
}
/**
* Provide alternate field aliases, usually more human-readable versions
* of the key.
*
* These aliases can be used when building GET requests, so you can provide
* an alias like `authors` to let users write `&authors=alincoln` instead of
* `&authorPHIDs=alincoln`. This is a little easier to use.
*
* @param list<string> List of aliases for this field.
* @return this
* @task config
*/
public function setAliases(array $aliases) {
$this->aliases = $aliases;
return $this;
}
/**
* Get aliases for this field.
*
* @return list<string> List of aliases for this field.
* @task config
*/
public function getAliases() {
return $this->aliases;
}
/* -( Handling Errors )---------------------------------------------------- */
protected function addError($short, $long) {
$this->errors[] = array($short, $long);
return $this;
}
public function getErrors() {
return $this->errors;
}
protected function validateControlValue($value) {
return;
}
protected function getShortError() {
$error = head($this->getErrors());
if ($error) {
return head($error);
}
return null;
}
/* -( Reading and Writing Field Values )----------------------------------- */
public function readValueFromRequest(AphrontRequest $request) {
$check = array_merge(array($this->getKey()), $this->getAliases());
foreach ($check as $key) {
if ($this->getValueExistsInRequest($request, $key)) {
return $this->getValueFromRequest($request, $key);
}
}
return $this->getDefaultValue();
}
protected function getValueExistsInRequest(AphrontRequest $request, $key) {
return $request->getExists($key);
}
abstract protected function getValueFromRequest(
AphrontRequest $request,
$key);
public function readValueFromSavedQuery(PhabricatorSavedQuery $saved) {
$value = $saved->getParameter(
$this->getKey(),
$this->getDefaultValue());
$this->value = $this->didReadValueFromSavedQuery($value);
$this->validateControlValue($value);
return $this;
}
protected function didReadValueFromSavedQuery($value) {
return $value;
}
public function getValue() {
return $this->value;
}
protected function getValueForControl() {
return $this->value;
}
protected function getDefaultValue() {
return null;
}
public function getValueForQuery($value) {
return $value;
}
/* -( Rendering Controls )------------------------------------------------- */
protected function newControl() {
throw new PhutilMethodNotImplementedException();
}
protected function renderControl() {
// TODO: We should `setError($this->getShortError())` here, but it looks
// terrible in the form layout.
return $this->newControl()
->setValue($this->getValueForControl())
->setName($this->getKey())
->setLabel($this->getLabel());
}
public function appendToForm(AphrontFormView $form) {
$form->appendControl($this->renderControl());
return $this;
}
/* -( Utility Methods )----------------------------------------------------- */
/**
* Read a list of items from the request, in either array format or string
* format:
*
* list[]=item1&list[]=item2
* list=item1,item2
*
* This provides flexibility when constructing URIs, especially from external
* sources.
*
* @param AphrontRequest Request to read strings from.
* @param string Key to read in the request.
* @return list<string> List of values.
* @task utility
*/
protected function getListFromRequest(
AphrontRequest $request,
$key) {
$list = $request->getArr($key, null);
if ($list === null) {
$list = $request->getStrList($key);
}
if (!$list) {
return array();
}
return $list;
}
}

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