Laravel/Ajax從數據庫獲取更新後的值

Question

我有一個編輯表單，管理員可以在其中編輯書籍的詳細信息。提交此表單後，數據庫中的值將更新，並且頁面應該將更新後的值加載到表單中（不刷新/重新加載頁面）。

我有輸入值在數據庫中得到更新罰款，但他們沒有得到加載到輸入字段..我的代碼只是抓住「舊」的價值觀，並把它們粘回領域..

只是爲了一步一步解釋它，使用「標題」作爲字段，我們將改變爲例子。 我有一本名爲「舊書」的書。我在編輯表格上輸入了一個新標題「新標題」。我點擊「提交」按鈕。頁面滾動回頂部（如同它應該那樣），但輸入框仍顯示「舊標題」。如果我然後刷新頁面（F5），輸入框現在顯示「新標題」。

我希望上述發生時不必刷新頁面。

這裏的編輯頁面的JavaScript/AJAX：

$(document).ready(function() 
{ 
    $('#editbook_form').bootstrapValidator(
    { 
     feedbackIcons: 
     { 
      valid: 'glyphicon glyphicon-ok', 
      invalid: 'glyphicon glyphicon-remove', 
      validating: 'glyphicon glyphicon-refresh' 
     }, 
     fields: 
     { 
      eb_title: 
      { 
       validators: 
       { 
        notEmpty: 
        { 
         message: 'You must enter a book title' 
        } 
       } 
      }, 
      eb_insoft: 
      { 
       validators: 
       { 
        notEmpty: 
        { 
         message: 'You must enter a value for In Soft' 
        } 
       } 
      }, 
      eb_inhard: 
      { 
       validators: 
       { 
        notEmpty: 
        { 
         message: 'You must enter a value for In Hard' 
        } 
       } 
      } 
     }, 
    }) 
    .on('success.form.bv', function(e) 
    { 
     // Prevent form submission 
     e.preventDefault(); 

     // Get the form instance 
     var $form = $(e.target); 

     // Get the BootstrapValidator instance 
     var bv = $form.data('bootstrapValidator'); 


     title = $("#title").val(); 
     m_keywords = $("#eb_mkeywords").val(); 
     m_description = $("#eb_mdescription").val(); 
     description = $("#eb_description").val(); 
     electronic_price = $("#eb_electronicprice").val(); 
     audio_price = $("#eb_audioprice").val(); 
     soft_price = $("#eb_softprice").val(); 
     hard_price = $("#eb_hardprice").val(); 
     in_soft = $("#eb_insoft").val(); 
     in_hard = $("#eb_inhard").val(); 
     status_id = $("#eb_statusid").val(); 
     isbn = $("#eb_isbn").val(); 
     date_published = $("#eb_datepublished").val(); 
     notes = $("#eb_notes").val(); 

     console.log("BEFORE AJAX CALL"); 

     $.ajax(
     { 
      type: "POST", 
      //url: base_url+"/book/updateBook", 
      url: "[[URL::to('book/updateBook')]]", 
      dataType : 'json', // expected returned data format. 
      data: 
      { 
       book_id: window.book_id, 
       title: title, 
       m_keywords: m_keywords, 
       m_description: m_description, 
       description: description, 
       electronic_price: electronic_price, 
       audio_price: audio_price, 
       soft_price: soft_price, 
       hard_price: hard_price, 
       in_soft: in_soft, 
       in_hard: in_hard, 
       status_id: status_id, 
       isbn: isbn, 
       date_published: date_published, 
       notes: notes, 
      }, 
      success: function(data) 
      { 
       if(data.valid==true) 
       { 
        console.log("DATA VALID IS TRUE"); 
        //alert("VALID: " + data.valid + "\nTITLE: " + data.title); 


        $("#edit_err").removeClass('text-danger').addClass('text-success'); 
        $("#edit_err").html(data.message); 

        oldInSoft = ""; 

        $('#editbook_form').data('bootstrapValidator').resetForm(); 
        $('#editbook_form')[0].reset(); 

        //location.reload(); 
        window.scrollTo(0,0); 

        //$('#eb_message').html("Book successfully updated!"); 

        $('#title').html("[[ $book->title ]]"); 
        $('#eb_mkeywords').html("[[ $book->m_keywords ]]"); 
        $('#eb_mdescription').html("[[ $book->m_description ]]"); 
        $('#eb_description').html("[[ $book->description ]]"); 
        $('#eb_electronicprice').html("[[ $book->electronic_price ]]"); 
        $('#eb_audioprice').html("[[ $book->audio_price ]]"); 
        $('#eb_softprice').html("[[ $book->soft_price ]]"); 
        $('#eb_hardprice').html("[[ $book->hard_price ]]"); 
        $('#eb_insoft').html("[[ $book->in_soft ]]"); 
        $('#eb_inhard').html("[[ $book->in_hard ]]"); 
        $('#eb_statusid').html("[[ $book->status_id ]]"); 
        $('#eb_isbn').html("[[ $book->isbn ]]"); 
        $('#eb_datepublished').html("[[ $book->date_published ]]"); 
        $('#eb_notes').html("[[ $book->notes ]]"); 
       } 
       else 
       { 
        console.log("DATA VALID IS FALSE"); 
        $("#edit_err").addClass("text-danger"); 
        $("#edit_err").html(data.message); 
       } 
      }, 
      beforeSend:function() 
      { 
       console.log("INSIDE BEFORESEND"); 
       $("#edit_err").html("Loading..."); 
      } 
     }); 

     return false; 
    }); 
}); 

這裏的控制器：

public function updateBook(Request $request) 
{ 
    $valid = false; 
    //$data = Input::all(); 
    //$message = ''; 

    $id = $request->input('book_id'); 
    $title = $request->input('title'); 
    $m_keywords = $request->input('m_keywords'); 
    $m_description = $request->input('m_description'); 
    $description = $request->input('description'); 
    $electronic_price = $request->input('electronic_price'); 
    $audio_price = $request->input('audio_price'); 
    $soft_price = $request->input('soft_price'); 
    $hard_price = $request->input('hard_price'); 
    $in_soft = $request->input('in_soft'); 
    $in_hard = $request->input('in_hard'); 
    $status_id = $request->input('status_id'); 
    $isbn = $request->input('isbn'); 
    $notes = $request->input('notes'); 
    $date_published = $request->input('date_published'); 


    $valid = DB::table('book')->where('book_id', $id)->update(
     [ 
      'title' => $title, 
      'm_keywords' => $m_keywords, 
      'm_description' => $m_description, 
      'description' => $description, 
      'electronic_price' => $electronic_price, 
      'audio_price' => $audio_price, 
      'soft_price' => $soft_price, 
      'hard_price' => $hard_price, 
      'in_soft' => $in_soft, 
      'in_hard' => $in_hard, 
      'status_id' => $status_id, 
      'isbn' => $isbn, 
      'date_published' => $date_published, 
      'notes' => $notes 
     ] 
     ); 

    if($valid) 
    { 
     return response()->json(array('valid' => true,'message' => 'Book successfully updated!')); 
    } 
    else 
    { 
     return response()->json(array('valid' => false,'message' => 'Book not updated, please fix any errors')); 
    } 

} 

任何幫助，不勝感激！

Answer 1

我認爲你沒有更新你使用的對象上的舊數據。 您只需創建一個新變量，如下所示。並將它們發送到更新方法。 但您正在使用舊對象的舊數據。 $書

$id = $request->input('book_id'); 
    $title = $request->input('title'); 
    $m_keywords = $request->input('m_keywords'); 
    $m_description = $request->input('m_description'); 
    $description = $request->input('description'); 
    $electronic_price = $request->input('electronic_price'); 
    $audio_price = $request->input('audio_price'); 
    $soft_price = $request->input('soft_price'); 
    $hard_price = $request->input('hard_price'); 
    $in_soft = $request->input('in_soft'); 
    $in_hard = $request->input('in_hard'); 
    $status_id = $request->input('status_id'); 
    $isbn = $request->input('isbn'); 
    $notes = $request->input('notes'); 
    $date_published = $request->input('date_published'); 

嘗試在對象 使用$這個 - >標題更新數據= ... 等。