silverstripe-framework/forms/gridfield/GridFieldConfig.php

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<?php
use SilverStripe\ORM\ArrayList;
/**
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* Encapsulates a collection of components following the
* {@link GridFieldComponent} interface. While the {@link GridField} itself
* has some configuration in the form of setters, most of the details are
* dealt with through components.
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*
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* For example, you would add a {@link GridFieldPaginator} component to enable
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* pagination on the listed records, and configure it through
* {@link GridFieldPaginator->setItemsPerPage()}.
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*
* In order to reduce the amount of custom code required, the framework
* provides some default configurations for common use cases:
*
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* - {@link GridFieldConfig_Base} (added by default to GridField)
* - {@link GridFieldConfig_RecordEditor}
* - {@link GridFieldConfig_RelationEditor}
*
* @package forms
* @subpackage fields-gridfield
*/
class GridFieldConfig extends Object {
/**
* @var ArrayList
*/
protected $components = null;
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/**
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*
*/
public function __construct() {
parent::__construct();
$this->components = new ArrayList();
}
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/**
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* @param GridFieldComponent $component
* @param string $insertBefore The class of the component to insert this one before
*/
public function addComponent(GridFieldComponent $component, $insertBefore = null) {
if($insertBefore) {
$existingItems = $this->getComponents();
$this->components = new ArrayList;
$inserted = false;
foreach($existingItems as $existingItem) {
if(!$inserted && $existingItem instanceof $insertBefore) {
$this->components->push($component);
$inserted = true;
}
$this->components->push($existingItem);
}
if(!$inserted) $this->components->push($component);
} else {
$this->getComponents()->push($component);
}
return $this;
}
/**
* @param GridFieldComponent One or more components
*/
public function addComponents() {
$components = func_get_args();
foreach($components as $component) $this->addComponent($component);
return $this;
}
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/**
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* @param GridFieldComponent $component
* @return GridFieldConfig $this
*/
public function removeComponent(GridFieldComponent $component) {
$this->getComponents()->remove($component);
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return $this;
}
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/**
* @param String Class name or interface
* @return GridFieldConfig $this
*/
public function removeComponentsByType($type) {
$components = $this->getComponentsByType($type);
foreach($components as $component) {
$this->removeComponent($component);
}
return $this;
}
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/**
* @return ArrayList Of GridFieldComponent
*/
public function getComponents() {
if(!$this->components) {
$this->components = new ArrayList();
}
return $this->components;
}
/**
* Returns all components extending a certain class, or implementing a certain interface.
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*
* @param String Class name or interface
* @return ArrayList Of GridFieldComponent
*/
public function getComponentsByType($type) {
$components = new ArrayList();
foreach($this->components as $component) {
if($component instanceof $type) $components->push($component);
}
return $components;
}
/**
* Returns the first available component with the given class or interface.
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*
* @param String ClassName
* @return GridFieldComponent
*/
public function getComponentByType($type) {
foreach($this->components as $component) {
if($component instanceof $type) return $component;
}
}
}
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/**
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* A simple readonly, paginated view of records, with sortable and searchable
* headers.
*
* @package forms
* @subpackage fields-gridfield
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*/
class GridFieldConfig_Base extends GridFieldConfig {
/**
* @param int $itemsPerPage - How many items per page should show up
*/
public function __construct($itemsPerPage=null) {
parent::__construct();
$this->addComponent(new GridFieldToolbarHeader());
$this->addComponent($sort = new GridFieldSortableHeader());
$this->addComponent($filter = new GridFieldFilterHeader());
$this->addComponent(new GridFieldDataColumns());
$this->addComponent(new GridFieldPageCount('toolbar-header-right'));
$this->addComponent($pagination = new GridFieldPaginator($itemsPerPage));
$sort->setThrowExceptionOnBadDataType(false);
$filter->setThrowExceptionOnBadDataType(false);
$pagination->setThrowExceptionOnBadDataType(false);
$this->extend('updateConfig');
}
}
/**
* Allows viewing readonly details of individual records.
*
* @package forms
* @subpackage fields-gridfield
*/
class GridFieldConfig_RecordViewer extends GridFieldConfig_Base {
public function __construct($itemsPerPage = null) {
parent::__construct($itemsPerPage);
$this->addComponent(new GridFieldViewButton());
$this->addComponent(new GridFieldDetailForm());
$this->extend('updateConfig');
}
}
/**
* Allows editing of records contained within the GridField, instead of only allowing the ability to view records in
* the GridField.
*
* @package forms
* @subpackage fields-gridfield
*/
class GridFieldConfig_RecordEditor extends GridFieldConfig {
/**
*
* @param int $itemsPerPage - How many items per page should show up
*/
public function __construct($itemsPerPage=null) {
parent::__construct();
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$this->addComponent(new GridFieldButtonRow('before'));
$this->addComponent(new GridFieldAddNewButton('buttons-before-left'));
$this->addComponent(new GridFieldToolbarHeader());
$this->addComponent($sort = new GridFieldSortableHeader());
$this->addComponent($filter = new GridFieldFilterHeader());
$this->addComponent(new GridFieldDataColumns());
$this->addComponent(new GridFieldEditButton());
$this->addComponent(new GridFieldDeleteAction());
$this->addComponent(new GridFieldPageCount('toolbar-header-right'));
$this->addComponent($pagination = new GridFieldPaginator($itemsPerPage));
$this->addComponent(new GridFieldDetailForm());
$sort->setThrowExceptionOnBadDataType(false);
$filter->setThrowExceptionOnBadDataType(false);
$pagination->setThrowExceptionOnBadDataType(false);
$this->extend('updateConfig');
}
}
/**
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* Similar to {@link GridFieldConfig_RecordEditor}, but adds features to work
* on has-many or many-many relationships.
*
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* Allows to search for existing records to add to the relationship, detach
* listed records from the relationship (rather than removing them from the
* database), and automatically add newly created records to it.
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*
* To further configure the field, use {@link getComponentByType()}, for
* example to change the field to search.
*
* <code>
* GridFieldConfig_RelationEditor::create()
* ->getComponentByType('GridFieldAddExistingAutocompleter')
* ->setSearchFields('MyField');
* </code>
*
* @package forms
* @subpackage fields-gridfield
*/
class GridFieldConfig_RelationEditor extends GridFieldConfig {
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/**
* @param int $itemsPerPage - How many items per page should show up
*/
public function __construct($itemsPerPage=null) {
parent::__construct();
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$this->addComponent(new GridFieldButtonRow('before'));
$this->addComponent(new GridFieldAddNewButton('buttons-before-left'));
$this->addComponent(new GridFieldAddExistingAutocompleter('buttons-before-right'));
$this->addComponent(new GridFieldToolbarHeader());
$this->addComponent($sort = new GridFieldSortableHeader());
$this->addComponent($filter = new GridFieldFilterHeader());
$this->addComponent(new GridFieldDataColumns());
$this->addComponent(new GridFieldEditButton());
$this->addComponent(new GridFieldDeleteAction(true));
$this->addComponent(new GridFieldPageCount('toolbar-header-right'));
$this->addComponent($pagination = new GridFieldPaginator($itemsPerPage));
$this->addComponent(new GridFieldDetailForm());
$sort->setThrowExceptionOnBadDataType(false);
$filter->setThrowExceptionOnBadDataType(false);
$pagination->setThrowExceptionOnBadDataType(false);
$this->extend('updateConfig');
}
}