NEW Relation search for GridFieldAddExistingAutocompleter

Now also searches 1:n relations if they where defined in searchableFields() with dot notation.

docs/en/reference/modeladmin.md

@@ -154,6 +154,8 @@ more specifically the `[api:GridFieldAddExistingAutocompleter]` and `[api:GridFi
 They provide a list/detail interface within a single record edited in your ModelAdmin.
 The `[GridField](/reference/grid-field)` docs also explain how to manage 
 extra relation fields on join tables through its detail forms.
+The autocompleter can also search attributes on relations,
+based on the search fields defined through `[api:DataObject::searchableFields()]`.
 
 ## Permissions
 

forms/gridfield/GridFieldAddExistingAutocompleter.php

@@ -28,10 +28,25 @@ class GridFieldAddExistingAutocompleter
 	protected $searchList;
 
 	/**
-	 * Which columns that should be used for doing a "StartsWith" search.
+	 * Define column names which should be included in the search.
+	 * By default, they're searched with a {@link StartsWithFilter}.
+	 * To define custom filters, use the same notation as {@link DataList->filter()},
+	 * e.g. "Name:EndsWith".
+	 * 
 	 * If multiple fields are provided, the filtering is performed non-exclusive.
-	 * If no fields are provided, tries to auto-detect a "Title" or "Name" field,
-	 * and falls back to the first textual field defined on the object.
+	 * If no fields are provided, tries to auto-detect fields from
+	 * {@link DataObject->searchableFields()}.
+	 * 
+	 * The fields support "dot-notation" for relationships, e.g.
+	 * a entry called "Team.Name" will search through the names of
+	 * a "Team" relationship.
+	 *
+	 * @example
+	 *  array(
+	 *  	'Name',
+	 *  	'Email:StartsWith',
+	 *  	'Team.Name'
+	 *  )
 	 *
 	 * @var Array
 	 */
@@ -192,15 +207,16 @@ class GridFieldAddExistingAutocompleter
 				$dataClass));
 		}
 
-		// TODO Replace with DataList->filterAny() once it correctly supports OR connectives
-		$stmts = array();
+		$params = array();
 		foreach($searchFields as $searchField) {
-			$stmts[] .= sprintf('"%s" LIKE \'%s%%\'', $searchField,
-				Convert::raw2sql($request->getVar('gridfield_relationsearch')));
+			$name = (strpos($searchField, ':') !== FALSE) ? $searchField : "$searchField:StartsWith";
+			$params[$name] = $request->getVar('gridfield_relationsearch');
 		}
-		$results = $allList->where(implode(' OR ', $stmts))->subtract($gridField->getList());
-		$results = $results->sort($searchFields[0], 'ASC');
-		$results = $results->limit($this->getResultsLimit());
+		$results = $allList
+			->subtract($gridField->getList())
+			->filterAny($params)
+			->sort(strtok($searchFields[0], ':'), 'ASC')
+			->limit($this->getResultsLimit());
 
 		$json = array();
 		foreach($results as $result) {
@@ -250,20 +266,44 @@ class GridFieldAddExistingAutocompleter
 	}
 
 	/**
-	 * Detect searchable 
+	 * Detect searchable fields and searchable relations.
+	 * Falls back to {@link DataObject->summaryFields()} if
+	 * no custom search fields are defined.
 	 * 
-	 * @param  String
-	 * @return Array
+	 * @param  String the class name
+	 * @return Array|null names of the searchable fields
 	 */
-	protected function scaffoldSearchFields($dataClass) {
+	public function scaffoldSearchFields($dataClass) {
 		$obj = singleton($dataClass);
-		if($obj->hasDatabaseField('Title')) {
-			return array('Title');
-		} else if($obj->hasDatabaseField('Name')) {
-			return array('Name');
-		} else {
-			return null;
+		$fields = null;
+		if($fieldSpecs = $obj->searchableFields()) {
+			$customSearchableFields = $obj->stat('searchable_fields');
+			foreach($fieldSpecs as $name => $spec) {
+				if(is_array($spec) && array_key_exists('filter', $spec)) {
+					// The searchableFields() spec defaults to PartialMatch,
+					// so we need to check the original setting.
+					// If the field is defined $searchable_fields = array('MyField'),
+					// then default to StartsWith filter, which makes more sense in this context.
+					if(!$customSearchableFields || array_search($name, $customSearchableFields)) {
+						$filter = 'StartsWith';
+					} else {
+						$filter = preg_replace('/Filter$/', '', $spec['filter']);
+					}
+					$fields[] = "{$name}:{$filter}";
+				} else {
+					$fields[] = $name;
+				}
+			}
 		}
+		if (is_null($fields)) {
+			if ($obj->hasDatabaseField('Title')) {
+				$fields = array('Title');
+			} elseif ($obj->hasDatabaseField('Name')) {
+				$fields = array('Name');
+			}
+		}
+
+		return $fields;
 	}
 
 	/**

tests/forms/GridFieldTest.php

@@ -472,6 +472,14 @@ class GridFieldTest_Team extends DataObject implements TestOnly {
 	);
 
 	static $many_many = array('Players' => 'GridFieldTest_Player');
+
+	static $has_many = array('Cheerleaders' => 'GridFieldTest_Cheerleader');
+	
+	static $searchable_fields = array(
+		'Name',
+		'City',
+		'Cheerleaders.Name'
+	);
 }
 
 class GridFieldTest_Player extends DataObject implements TestOnly {
@@ -483,6 +491,14 @@ class GridFieldTest_Player extends DataObject implements TestOnly {
 	static $belongs_many_many = array('Teams' => 'GridFieldTest_Team');
 }
 
+class GridFieldTest_Cheerleader extends DataObject implements TestOnly {
+	static $db = array(
+		'Name' => 'Varchar'
+	);
+
+	static $has_one = array('Team' => 'GridFieldTest_Team');
+}
+
 class GridFieldTest_HTMLFragments implements GridField_HTMLProvider, TestOnly{
 	public function __construct($fragments) {
 		$this->fragments = $fragments;

tests/forms/gridfield/GridFieldAddExistingAutocompleterTest.php

@@ -3,9 +3,28 @@ class GridFieldAddExistingAutocompleterTest extends FunctionalTest {
 
 	static $fixture_file = 'GridFieldTest.yml';
 
-	protected $extraDataObjects = array('GridFieldTest_Team', 'GridFieldTest_Player');
+	protected $extraDataObjects = array('GridFieldTest_Team', 'GridFieldTest_Player', 'GridFieldTest_Cheerleader');
 	
-	public function testSearch() {
+	function testScaffoldSearchFields() {
+		$autoCompleter = new GridFieldAddExistingAutocompleter($targetFragment = 'before', array('Test'));
+		$gridFieldTest_Team = singleton('GridFieldTest_Team');
+		$this->assertEquals(
+			$autoCompleter->scaffoldSearchFields('GridFieldTest_Team'), 
+			array(
+				'Name:PartialMatch',
+				'City:StartsWith',
+				'Cheerleaders.Name:StartsWith'
+			)
+		);
+		$this->assertEquals(
+			$autoCompleter->scaffoldSearchFields('GridFieldTest_Cheerleader'), 
+			array(
+				'Name:StartsWith'
+			)
+		);
+	}
+				
+	function testSearch() {
 		$team1 = $this->objFromFixture('GridFieldTest_Team', 'team1');
 		$team2 = $this->objFromFixture('GridFieldTest_Team', 'team2');
 
@@ -17,21 +36,26 @@ class GridFieldAddExistingAutocompleterTest extends FunctionalTest {
 		$response = $this->post(
 			'GridFieldAddExistingAutocompleterTest_Controller/Form/field/testfield/search'
 				. '/?gridfield_relationsearch=Team 2',
-			array(
-				(string)$btns[0]['name'] => 1
-			)
+			array((string)$btns[0]['name'] => 1)
 		);
 		$this->assertFalse($response->isError());
 		$result = Convert::json2array($response->getBody());
 		$this->assertEquals(1, count($result));
 		$this->assertEquals(array($team2->ID => 'Team 2'), $result);
+								
+		$response = $this->post(
+			'GridFieldAddExistingAutocompleterTest_Controller/Form/field/testfield/'
+				. 'search/?gridfield_relationsearch=Heather',
+			array((string)$btns[0]['name'] => 1)
+		);
+		$this->assertFalse($response->isError());
+		$result = Convert::json2array($response->getBody());
+		$this->assertEquals(1, count($result), "The relational filter did not work");
 
 		$response = $this->post(
 			'GridFieldAddExistingAutocompleterTest_Controller/Form/field/testfield/search'
 				. '/?gridfield_relationsearch=Unknown',
-			array(
-				(string)$btns[0]['name'] => 1
-			)
+			array((string)$btns[0]['name'] => 1)
 		);
 		$this->assertFalse($response->isError());
 		$result = Convert::json2array($response->getBody());
@@ -78,7 +102,7 @@ class GridFieldAddExistingAutocompleterTest_Controller extends Controller implem
 	public function Form() {
 		$player = DataObject::get('GridFieldTest_Player')->find('Email', 'player1@test.com');
 		$config = GridFieldConfig::create()->addComponents(
-			$relationComponent = new GridFieldAddExistingAutocompleter('before', 'Name'),
+			$relationComponent = new GridFieldAddExistingAutocompleter('before'),
 			new GridFieldDataColumns()
 		);
 		$field = new GridField('testfield', 'testfield', $player->Teams(), $config);

tests/forms/gridfield/GridFieldTest.yml

@@ -15,4 +15,8 @@ GridFieldTest_Player:
 	player1_team1:
 		Name: Player 1
 		Email: player1@test.com
-		Teams: =>GridFieldTest_Team.team1
+		Teams: =>GridFieldTest_Team.team1
+GridFieldTest_Cheerleader:
+  cheerleader1_team1:
+    Name: Heather
+    Team: =>GridFieldTest_Team.team4