十月 CMS 与自我的关系

Question

我有 Event 模型并希望能够选择其中的其他事件以显示在前端。

我尝试的第一件事是关系，但问题是我不知道如何使用数据透视表，因为实际上它应该包含两个字段并且都应该命名为“event_id”，这显然是不可能的。 也许有人可以建议任何方法来避免这种情况或更好的方法来解决我在事件模型中的事件选择字段的问题？

提前致谢。

Answer 1

是的same name for relation_id 可能是不可能的，但我们有选择:)

你可以像这样创建中间表

<?php namespace HardikSatasiya\SoTest\Updates;

use Schema;
use October\Rain\Database\Updates\Migration;

class BuilderTableCreateHardiksatasiyaSotestEventsEvents extends Migration
{
    public function up()
    {
        Schema::create('hardiksatasiya_sotest_events_events', function($table)
        {
            $table->engine = 'InnoDB';
            $table->increments('id')->unsigned();
            $table->integer('events_id')->unsigned();
            $table->integer('related_events_id')->unsigned();
        });
    }

    public function down()
    {
        Schema::dropIfExists('hardiksatasiya_sotest_events_events');
    }
}

然后，我们只需要使用适当的选项添加关系

public $belongsToMany =[
    'skills' => [
        'HardikSatasiya\SoTest\Models\Skills',
        'table' => 'hardiksatasiya_sotest_events_skills',
        'order' => 'title'
    ],
    'related_events' => [
        'HardikSatasiya\SoTest\Models\Events',
        'table' => 'hardiksatasiya_sotest_events_events',
        'order' => 'title',
        'key' => 'events_id',
        'otherKey' => 'related_events_id'
    ]
];

对于这个关系，我们指定event_id 用于主要事件，related_events_id 用于我们添加为相关事件的其他事件。 config_relation.yaml

# ===================================
#  Relation Behavior Config
# ===================================

skills:
    label: Skill
    view:
        list: $/hardiksatasiya/sotest/models/skills/columns.yaml
        toolbarButtons: add|remove
    manage:
        list: $/hardiksatasiya/sotest/models/skills/columns.yaml
        form: $/hardiksatasiya/sotest/models/skills/fields.yaml

related_events:
    label: Events
    view:
        list: $/hardiksatasiya/sotest/models/events/columns.yaml
        toolbarButtons: add|remove
    manage:
        list: $/hardiksatasiya/sotest/models/events/columns.yaml
        form: $/hardiksatasiya/sotest/models/events/fields.yaml

事件模态字段$/hardiksatasiya/sotest/models/events/fields.yaml

fields:
    title:
        label: Title
        span: auto
        type: text
    description:
        label: Description
        size: ''
        span: auto
        type: textarea
    skills:
        label: Skills
        type: partial
        path: $/hardiksatasiya/sotest/controllers/events/_relation_skills.htm
    related_events:
        label: Events
        type: partial
        path: $/hardiksatasiya/sotest/controllers/events/_related_events.htm

现在部分_related_events.htm

<?= $this->relationRender('related_events') ?>

结果

在代码中访问

use HardikSatasiya\SoTest\Models\Events as EventsModel;

function onStart() {
    $this['event'] = $event = EventsModel::first();
    dd($event->related_events);
}

如有任何疑问，请发表评论。