Question

试图找出以下内容：

如何设置这些表。
使用雄辩的表之间的关系。

基本上，您可以创建与任务相关联的帖子。每个任务都可以包含需要用户输入的唯一详细信息。

表格（执行此操作的一种方式）

Schema::create('uniqueTopic1', function (Blueprint $table) {
$table->increments('id');
$table->unsignedInteger('post_id');
$table->foreign('post_id')
      ->references('id')
      ->on('posts')
      ->onDelete('cascade');
$table->string('uniqueDetails1');
$table->string('uniqueDetails2');
$table->string('uniqueDetails3');
$table->string('uniqueDetails4');
$table->string('uniqueDetails5');
$table->string('uniqueDetails6');
$table->string('title');
$table->string('description');
$table->string('mission');
$table->int('money');
$table->timestamps();
});

Schema::create('uniqueTopic2', function (Blueprint $table) {
    $table->increments('id');
    $table->unsignedInteger('post_id');
    $table->foreign('post_id')
          ->references('id')
          ->on('posts')
          ->onDelete('cascade');
    $table->string('uniqueDetails1');
    $table->string('uniqueDetails2');
    $table->string('uniqueDetails3');
    $table->int('level');
    $table->timestamps();
});

Schema::create('posts', function (Blueprint $table) {
    $table->increments('id');
    $table->string('title');
    $table->timestamps();
});

现在我想以一种我可以成长的方式来设置它。当我向网站添加更多任务时，我可以动态地将其扩展。这就是为什么我想到一个引用一个任务表的帖子表，然后可以进入该特定任务的详细信息表？

首先，这是正确的设置方法吗？

其次，我会用滔滔不绝的方式将这种方式联系起来？通过多对多？数据透视表。这是一个API，所以能够构建JSON对象很重要...这不仅仅是传递给视图或类似的东西......

Answer 1

数据库计划

Schema::create('tasks', function (Blueprint $table) {
    $table->increments('id');
    $table->string('title');
    $table->timestamps();
});

Schema::create('sub_tasks', function (Blueprint $table) {
    $table->increments('id');
    $table->string('title');
    $table->string('description');
    $table->unsignedInteger('task_id');
    $table->foreign('task_id')
          ->references('id')
          ->on('tasks')
          ->onDelete('cascade');
    $table->timestamps();
});

Schema::create('posts', function (Blueprint $table) {
    $table->increments('id');
    $table->string('title');
    $table->unsignedInteger('task_id');
    $table->foreign('task_id')
          ->references('id')
          ->on('tasks')
          ->onDelete('cascade');
    $table->timestamps();
});

示例代码

$task1 = Task::create(['title' => 'Market Shopping']);
$task2 = Task::create(['title' => 'Spring Cleaning']);

// Subtask for Task1
$task1->subTasks()->create([
    'title'       => 'Buy shampoo',
    'description' => 'Around 3 bottles will be good'
]);

$task1->subTasks()->create([
    'title'       => 'Buy donuts',
    'description' => 'I love the sprinkled ones!'
]);

// Subtask for Task2
$task2->subTasks()->create([
    'title'       => 'Recycle old bottles',
    'description' => 'They are in the garage'
]);

$task2->subTasks()->create([
    'title'       => 'Wash car',
    'description' => 'Do not forget the back seat'
]);

Answer 2

@dov

所以，如果我扩展你的想法，我会最终得到这个......不是吗？对不起它仍然没有点击我如何使这项工作。道歉。我最终会得到如下条目：

子任务1和子任务2的数据库条目

1 | 1 | x | y | z | NULL | NULL | NULL | NULL | NULL | timestamps
2 | 2 | NULL | NULL | NULL | a | b | c | d | timestamps

表：

Schema::create('tasks', function (Blueprint $table) {
    $table->increments('id');
    $table->string('title');
    $table->timestamps();
});

Schema::create('sub_tasks', function (Blueprint $table) {
    $table->increments('id');
    $table->unsignedInteger('task_id');
    $table->foreign('task_id')
          ->references('id')
          ->on('tasks')
          ->onDelete('cascade');
    $table->string('task1 specific input1');
    $table->string('task1 specific input2');
    $table->string('task1 specific input3');
    $table->string('task2 specific input1');
    $table->string('task2 specific input2');
    $table->string('task2 specific input3');
    $table->string('task2 specific input4');
    $table->string('task2 specific input5');
    $table->timestamps();
});

Schema::create('posts', function (Blueprint $table) {
    $table->increments('id');
    $table->string('title');
    $table->unsignedInteger('task_id');
    $table->foreign('task_id')
          ->references('id')
          ->on('tasks')
          ->onDelete('cascade');
    $table->timestamps();
});

Laravel三个不同表格之间的关系

2 个答案: