bentuk adminhtml ui_component bidang tidak diisi

Saya telah membuat contoh bentuk ui_component. Bidang-bidang diberikan tetapi tidak diisi. Meskipun JSON yang diberikan berisi data, itu tidak menampilkan.
Apa yang saya lakukan salah? Apa langkah debugging yang efektif?

Inilah yang saya punya. Untuk tujuan pengujian, saya telah membuat entitas sangat minimal (dua bidang: foo_iddan name).

XML ui_component:

<?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">
    <argument name="data" xsi:type="array">
        <item name="js_config" xsi:type="array">
            <item name="provider" xsi:type="string">example_foo_form.example_foo_form_data_source</item>
            <item name="deps" xsi:type="string">example_foo_form.example_foo_form_data_source</item>
        </item>
        <item name="config" xsi:type="array">
            <item name="dataScope" xsi:type="string">data</item>
            <item name="namespace" xsi:type="string">example_foo_form</item>
        </item>
        <item name="label" xsi:type="string" translate="true">Foo Information</item>
        <item name="layout" xsi:type="array">
            <item name="type" xsi:type="string">tabs</item>
            <item name="navContainerName" xsi:type="string">left</item>
        </item>
        <item name="buttons" xsi:type="array">
            <item name="save" xsi:type="string">Example\Foo\Block\Adminhtml\Foo\Edit\SaveButton</item>
        </item>
    </argument>
    <dataSource name="example_foo_form_data_source">
        <argument name="dataProvider" xsi:type="configurableObject">
            <argument name="class" xsi:type="string">Example\Foo\Model\Foo\DataProvider</argument>
            <argument name="name" xsi:type="string">example_foo_form_data_source</argument>
            <argument name="primaryFieldName" xsi:type="string">foo_id</argument>
            <argument name="requestFieldName" xsi:type="string">id</argument>
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="submit_url" xsi:type="url" path="example_foo/foo/save"/>
                </item>
            </argument>
        </argument>
        <argument name="data" xsi:type="array">
            <item name="js_config" xsi:type="array">
                <item name="component" xsi:type="string">Magento_Ui/js/form/provider</item>
            </item>
        </argument>
    </dataSource>
    <fieldset name="foo">
        <argument name="data" xsi:type="array">
            <item name="config" xsi:type="array">
                <item name="label" xsi:type="string" translate="true">Foo Information</item>
            </item>
        </argument>
        <field name="foo_id">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="label" xsi:type="string" translate="true">Foo ID</item>
                    <item name="visible" xsi:type="boolean">false</item>
                    <item name="dataType" xsi:type="string">text</item>
                    <item name="formElement" xsi:type="string">input</item>
                    <item name="dataScope" xsi:type="string">foo_id</item>
                </item>
            </argument>
        </field>
        <field name="name">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="label" xsi:type="string" translate="true">Name</item>
                    <item name="visible" xsi:type="boolean">true</item>
                    <item name="dataType" xsi:type="string">text</item>
                    <item name="formElement" xsi:type="string">input</item>
                    <item name="dataScope" xsi:type="string">name</item>
                </item>
            </argument>
        </field>
    </fieldset>
</form>

Penyedia Data:

<?php

namespace Example\Foo\Model\Foo;

class DataProvider extends \Magento\Ui\DataProvider\AbstractDataProvider
{
    public function __construct(
        \Example\Foo\Model\ResourceModel\Foo\CollectionFactory $collectionFactory,
        $name,
        $primaryFieldName,
        $requestFieldName,
        array $meta = [],
        array $data = []
    ) {
        $this->collection = $collectionFactory->create();
        parent::__construct($name, $primaryFieldName, $requestFieldName, $meta, $data);
    }

    public function getData()
    {
        $data = parent::getData();
        return array_reduce($data['items'], function ($result, array $item) {
            $result[$item['foo_id']] = $item;
            return $result;
        }, []);
    }
}

Ini adalah JSON yang diberikan (dicetak cantik untuk dibaca):

{
  "types": {
    "dataSource": {
      "component": "Magento_Ui/js/form/provider"
    },
    "input": {
      "extends": "example_foo_form"
    },
    "form.input": {
      "extends": "input"
    },
    "textarea": {
      "extends": "example_foo_form"
    },
    "form.textarea": {
      "extends": "textarea"
    },
    "fieldset": {
      "component": "Magento_Ui/js/form/components/fieldset",
      "extends": "example_foo_form"
    },
    "example_foo_form": {
      "component": "Magento_Ui/js/form/form",
      "provider": "example_foo_form.example_foo_form_data_source",
      "deps": "example_foo_form.example_foo_form_data_source"
    },
    "nav": {
      "component": "Magento_Ui/js/form/components/tab_group",
      "config": {
        "template": "ui/tab"
      },
      "extends": "example_foo_form"
    },
    "html_content": {
      "component": "Magento_Ui/js/form/components/html",
      "extends": "example_foo_form"
    },
    "tab": {
      "component": "Magento_Ui/js/form/components/area",
      "extends": "example_foo_form"
    }
  },
  "components": {
    "example_foo_form": {
      "children": {
        "sections": {
          "type": "nav",
          "config": {
            "label": "Foo Information"
          },
          "children": []
        },
        "areas": {
          "type": "example_foo_form",
          "config": {
            "namespace": "example_foo_form"
          },
          "children": {
            "foo": {
              "type": "tab",
              "dataScope": "data.foo",
              "config": {
                "label": "Foo Information"
              },
              "insertTo": {
                "example_foo_form.sections": {
                  "position": 20
                }
              },
              "children": {
                "foo": {
                  "type": "fieldset",
                  "name": "foo",
                  "children": {
                    "name": {
                      "type": "form.input",
                      "name": "name",
                      "children": [],
                      "dataScope": "name",
                      "config": {
                        "component": "Magento_Ui/js/form/element/abstract",
                        "template": "ui/form/field",
                        "label": "Name",
                        "visible": true,
                        "dataType": "text",
                        "formElement": "input",
                        "displayArea": "body"
                      }
                    }
                  },
                  "config": {
                    "label": "Foo Information",
                    "displayArea": "body"
                  }
                }
              }
            }
          }
        },
        "example_foo_form_data_source": {
          "type": "dataSource",
          "name": "example_foo_form_data_source",
          "dataScope": "example_foo_form",
          "config": {
            "data": {
              "foo_id": "1",
              "name": "test1"
            },
            "submit_url": "http://m2-example.localhost/admin/example/foo/save/key/f218ccaa2d4596ecc1f63770cd913793822e7f8489bd480ca007e3890f83a4b5/",
            "params": {
              "namespace": "example_foo_form"
            }
          }
        }
      }
    }
  }
}

Melihat JSON yang Anda buat, ini tidak terlihat

    "example_foo_form_data_source": {
      "type": "dataSource",
      "name": "example_foo_form_data_source",
      "dataScope": "example_foo_form",
      "config": {
        "data": {
          "foo_id": "1",
          "name": "test1"
        },
        "submit_url": "http://m2-example.localhost/admin/example/foo/save/key/f218ccaa2d4596ecc1f63770cd913793822e7f8489bd480ca007e3890f83a4b5/",
        "params": {
          "namespace": "example_foo_form"
        }
      }
    }

Secara khusus

  "config": {
    "data": {
      "foo_id": "1",
      "name": "test1"
    },

Dalam formulir inti Magento (seperti formulir pelanggan), biasanya ada tingkat bersarang di sana

  "config": {
    "data": {
        "foo": {
              "foo_id": "1",
              "name": "test1"
    }
    },

Di fooatas mengacu pada fieldsetnama Anda . Ini harus cocok dengan kunci dalam array yang Example\Foo\Model\Foo\DataProviderdikembalikan oleh penyedia data Anda (di atas).

public function getData()
{
    //...        
    return [$object_id=>['foo'=>$item_data]];
}

Lakukan penyesuaian itu, dan Anda harus baik-baik saja.