Laravel - 将多个数组作为新行插入？

Question

下面给出的我的代码只向表中插入一行。对于$courseChapters 的chapter_content 数组中的每一组数据，我希望它作为CoursePublishChaptercontent 表中的新行添加，courseId 和points 字段的值对于此类数据的每一新行重复。对于示例，需要将 预期输出 中给出的 2 行新数据插入到表中，以用于下面给定的 var_export($courseChapters) 数据。有人可以告诉我如何实现这一目标吗？

foreach ($courseChapters['chapter_content'] as $chapter) {
     $postdata['chapterId']    =  $chapter['course_chapter_id'];
     $postdata['contentTypeId'] = $chapter['content_type_id'];
     $postdata['fileId']         = $chapter['file_id'];
                 
   $data=CoursePublishChaptercontent::create([
         'courseId' => $courseChapters['courseId'],
         'points'    =>  $courseChapters['points'],
         'course_chapter_id'=>$postdata['chapterId'],
         'content_type_id'=>$postdata['contentTypeId'],
         'file_id'=>$postdata['fileId']]);
 }

var_export($courseChapters) 是一个数组，如下所示：

array (
  'id' => 4,
  'courseId' => 24,
  'points' => 8,
  'chapter_content' => 
  array (
    0 => 
        array (
          'course_chapter_id' => 4,
          'file_id' => 3,
          'content_type_id' => 1,
        ),
    1 => 
        array (
          'course_chapter_id' => 4,
          'file_id' => 4,
          'content_type_id' => 2,
        ),
  ),
)

编辑

//$postdata=[];
                   $i=0;
                   foreach ($courseChapters['chapter_content'] as $chapter) {
                    $postdata[$i]['courseId'] = $courseChapters['courseId'];
                    $postdata[$i]['points']    =  $courseChapters['points'];
                    $postdata[$i]['course_chapter_id']    =  $chapter['course_chapter_id'];
                    $postdata[$i]['content_type_id'] = $chapter['content_type_id'];
                    $postdata[$i]['file_id']         = $chapter['file_id'];                              
                    $i++;
                }
         $data=CoursePublishChaptercontent::create($postdata);

预期/要求的输出：

[
  "courseId" => 24
  "points" => 8
  "course_chapter_id" => 4
  "content_type_id" => 1
  "file_id" => 3
],
[
  "courseId" => 24
  "points" => 8
  "course_chapter_id" => 4
  "content_type_id" => 2
  "file_id" => 4
]

当前输出：

array:2 [
  0 => array:5 [
    "courseId" => 24
    "points" => 8
    "course_chapter_id" => 4
    "content_type_id" => 1
    "file_id" => 1
  ]
  1 => array:5 [
    "courseId" => 24
    "points" => 8
    "course_chapter_id" => 4
    "content_type_id" => 1
    "file_id" => 3
  ]
]

Answer 1

您的$courseChapters 数组仅包含一个对象，因此只插入了 1 个数据。如果您仍想保持 $courseChapters 的数组格式为这样，此代码将起作用：

foreach ($courseChapters as $courseChapter) {
   $courseId = $courseChapter["courseId"];
   $points = $courseChapter["point"]
   foreach ($courseChapter["chapter_content"] as $chapterContent) {
      $courseChapterId = $chapterContent["course_chapter_id"];
      $fileId = $chapterContent["file_id"];
      $contentTypeId = $chapterContent["content_type_id"];
      
      // Then put your create code below using the data provided above...
   }
}

就个人而言，我会反对这一点，因为那里有一个嵌套循环，我建议将您的 $courseChapters 的数组格式更改为与您的预期输出完全相同，因此，您只需要一个循环来插入记录.

这是我提到的格式（如果你手动创建它）：

array (
   array (
     'id' => 4,
     'courseId' => 24,
     'points' => 8,
     'course_chapter_id' => 4,
     'file_id' => 3,
     'content_type_id' => 1
   ),
   array(
     'id' => 4,
     'courseId' => 24,
     'points' => 8,
     'course_chapter_id' => 4,
     'file_id' => 4,
     'content_type_id' => 2
   )
);

上面的格式是这样的：

[
   [
      "id" => 4,
      "courseId" => 24,
      "points" => 8,
      "course_chapter_id" => 4,
      "file_id" => 3,
      "content_type_id" => 1
   ],
   [
      "id" => 4,
      "courseId" => 24,
      "points" => 8,
      "course_chapter_id" => 4,
      "file_id" => 4,
      "content_type_id" => 2
   ]
]