javascript - 在 Laravel 中是否有更简单的方法将数据从页面传递到模式？

Question

我使用 Laravel 和 Bootstrap 制作的网站有一个表格，其中列出了用户在网站上发布的书籍。以下是在给定书籍集合的情况下在 View 中显示表格的代码:

<table class="table table-hover" id="table">
    <thead>
      <tr>
        <th class="col-md-3">Title</th>
        <th class="col-md-3">Author</th>
        <th class="col-md-2">Price</th>
        <th class="col-md-2">Courses</th>
        <th class="col-md-2">Date Added</th>
        <th class="col-md-2">More Info</th>
      </tr>
    </thead>
    <tbody class="searchable">
        @foreach($books as $book)
            <tr>
            <td>{{$book->title}}</td>
            <td>{{$book->author}}</td>
            <td>${{$book->price}}</td>
            <td>{{$book->course_code}}</td>
            <td>{{$book->added_on}}</td>
            <td><button type="button" data-toggle="modal" data-id="{{$book->id}}" data-title="{{$book->title}}" data-author="{{$book->author}}" 
                data-price="{{$book->price}}" data-school="{{$book->school}}" data-description="{{$book->description}}" data-courses="{{$book->course_code}}" 
                data-date="{{$book->added_on}}" href="#more_info" class="btn btn-primary">More Info</button></td>
            </tr>
        @endforeach
    </tbody>
</table>

正如您所看到的，表中每个条目的最后一列中出现的按钮的代码分为三行，因为我还使用数据属性来存储书籍的属性。这样我就可以将书籍的数据传递给按钮将调用的模式。这是将被调用的模态:

<div class = "modal fade" id = "more_info" role = "dialog">
    <div class = "modal-dialog">
        <div class = "modal-content">
            <div class = "modal-header">
                <h4 id="book_title">Title</h4>
                <h5 id="book_author">Author</h5>
            </div>
            <div class = "modal-body">
                <p id="book_price">Price: </p>
                <p id="book_school">School: </p>
                <p id="book_course_code">Course(s): </p>
                <p id="book_date">Added On: </p>
                <p>Description:<br></p>
                <p id="book_description">Description<br></p>
            </div>
            <div class = "modal-footer">
                <a class = "btn btn-default" data-dismiss = "modal">Close</a>
                <input type="hidden" name="book_id" id="book_id" value=""/>
                <button class = "btn btn-primary" data-dismiss = "modal" href="#contact_seller" data-toggle="modal">Contact Seller</button>
            </div>
        </div>
    </div>
</div>

以下是将书籍数据从页面传递到模式的 Javascript 代码:

$(document).ready(function () {

    $('#more_info').on('show.bs.modal', function (event) {
          var button = $(event.relatedTarget) // Button that triggered the modal
          var id = button.data('id') // Extract info from data-* attributes
          var title = button.data('title')
          var author = button.data('author')
          var price = button.data('price')
          var school = button.data('school')
          var description = button.data('description')
          var courses = button.data('courses')
          var date = button.data('date')

          var modal = $(this)
          modal.find('#book_title').text(title)
          modal.find('#book_author').text("By " + author)
          modal.find('#book_price').text("Price: $" + price)
          modal.find('#book_school').text("School: " + school)
          modal.find('#book_course_code').text("Course(s): " + courses)
          modal.find('#book_date').text("Added On: " + date)
          modal.find('#book_description').text(description)
          modal.find('#book_idx').text(id)
    })

});

是否有更优雅的方式将数据从页面传递到模式？

我是否可以使用给定的图书 ID 进行数据库查找，以便获取 View 在模态上显示它们所需的所有数据？

Answer 1

这里有一个更简单的解决问题的方法，您只需将书籍的内容保存在由书籍 id 分组的变量中，该变量将成为您在按钮中设置的唯一属性。

<tbody class="searchable">
    @foreach($books as $book)
        <tr>
        <td>{{$book->title}}</td>
        <td>{{$book->author}}</td>
        <td>${{$book->price}}</td>
        <td>{{$book->course_code}}</td>
        <td>{{$book->added_on}}</td>
        <td><button type="button" data-toggle="modal" data-id="{{$book->id}}" href="#more_info" class="btn btn-primary">More Info</button></td>
        </tr>
    @endforeach
</tbody>

在表格结束下方但在 jquery 代码之前创建以下脚本标记，假设 $books 是一个集合实例(在 Laravel 5.x 中)

<script>
   var appVairiables = {};
   appVariables.books = {!! $books->groupBy('id') !!};

   //output result will be like
   // books = {
   // 1 : {
   //    id : 1,
   //    author : "author1"
   //    ..
   // },
   // 3 : { .. }, 4 : { ... }
   //}

</script>

现在在 jquery 函数中执行以下操作

$(document).ready(function () {

$('#more_info').on('show.bs.modal', function (event) {
      var button = $(event.relatedTarget) // Button that triggered the modal
      var id = button.data('id') // Extract info from data-* attributes
      var book = appVariables.books[id]; //fetching the contents of book according to id received

      var modal = $(this)
      modal.find('#book_title').text(book.title)
      modal.find('#book_author').text("By " + book.author)
      modal.find('#book_price').text("Price: $" + book.price)
      modal.find('#book_school').text("School: " + book.school)
      modal.find('#book_course_code').text("Course(s): " + book.courses)
      modal.find('#book_date').text("Added On: " + book.added_on)
      modal.find('#book_description').text(book.description)
      modal.find('#book_idx').text(book.id)
   })
});