Ttdfjt

I want to call the categories into my custom admin form for admin. How can I call that?

I want to show all categories into my custom form in admin and it will allow selecting only one category.

I used the below code but it is showing nothing in my form what is wrong here?

<referenceContainer name="content">
 <block class="NameModuleBlockAdminhtmlCategoryDuplicateFormCategories" name="name.dupcat.categorydropdown">
 <uiComponent name="categories_form"/>
 </block>
</referenceContainer>

-- view/adminhtml/ui_component/categories_form.xml

<?xml version="1.0" encoding="UTF-8"?>
<form xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
 <fieldset name="general">
 <field name="categories" component="Name/Module/js/select-category" sortOrder="20" formElement="select" > 
 <argument name="data" xsi:type="array">
 <item name="config" xsi:type="array">
 <item name="filterOptions" xsi:type="boolean">true</item>
 <item name="multiple" xsi:type="boolean">false</item>
 <item name="showCheckbox" xsi:type="boolean">true</item>
 <item name="disableLabel" xsi:type="boolean">true</item>
 </item>
 </argument>
 <settings>
 <validation>
 <rule name="required-entry" xsi:type="boolean">true</rule>
 </validation>
 <elementTmpl>ui/grid/filters/elements/ui-select</elementTmpl>
 <label translate="true">Select Category</label>
 <dataScope>categories</dataScope>
 <componentType>field</componentType>
 <listens>
 <link name="$ $.nametdupcat .$ $.nametdupcat :responseData">setParsed</link>
 </listens>
 </settings>
 <formElements>
 <select>
 <settings>
 <options class="NameModuleUiComponentFormCategoryOptions"/>
 </settings>
 </select>
 </formElements>
 </field>
 </fieldset> 
</form>

-- UiComponentFormCategoryOptions.php

<?php
namespace NameModuleUiComponentFormCategory;

use MagentoFrameworkDataOptionSourceInterface;
use MagentoCatalogModelResourceModelCategoryCollectionFactory as CategoryCollectionFactory;
use MagentoFrameworkAppRequestInterface;

class Options implements OptionSourceInterface

 protected $categoryCollectionFactory;
 protected $request;
 protected $categoryTree;

 public function __construct(
 CategoryCollectionFactory $categoryCollectionFactory,
 RequestInterface $request
 ) 
 $this->categoryCollectionFactory = $categoryCollectionFactory;
 $this->request = $request;
 

 public function toOptionArray()
 
 return $this->getCategoryTree();
 

 protected function getCategoryTree()
 
 if ($this->categoryTree === null) 
 $collection = $this->categoryCollectionFactory->create();

 $collection->addAttributeToSelect('name');

 foreach ($collection as $category) 
 $categoryId = $category->getEntityId();
 if (!isset($categoryById[$categoryId])) 
 $categoryById[$categoryId] = [
 'value' => $categoryId
 ];
 
 $categoryById[$categoryId]['label'] = $category->getName();
 
 $this->categoryTree = $categoryById;
 
 return $this->categoryTree;
 

-- viewadminhtmlwebjsselect-category.js

define([
'Magento_Ui/js/form/element/ui-select'
], function (Select) 
'use strict';
return Select.extend(
 setParsed: function (data) 
 var option = this.parseData(data);
 if (data.error) 
 return this;
 
 this.options([]);
 this.setOption(option);
 this.set('newOption', option);
 ,

 parseData: function (data) 
 return 
 value: data.category.entity_id,
 label: data.category.name
 ;
 
);
);