在一個視圖中處理Django中的兩個表單時發生的問題

Question

我在一個視圖內使用2個表單時遇到困難。這裏是我的代碼和問題：

型號

class Process(models.Model): 
    name = models.CharField(max_length = 200) 
    order = models.IntegerField(
     default=0, 
     validators=[ 
      MinValueValidator(0) 
     ] 
    ) 
    status = models.BooleanField(default = True) 

    process_owner = models.CharField(max_length = 200) 
    created_by = models.CharField(max_length = 200) 
    created_at = models.DateTimeField(auto_now_add = True) 
    updated_at = models.DateTimeField(auto_now = True) 

class SubProcess(models.Model): 
    process = models.ForeignKey(Process, on_delete=models.CASCADE) 
    next_sub_process = models.ForeignKey('self', on_delete=models.CASCADE, null=True, blank=False) 

    name = models.CharField(max_length = 200) 
    status = models.BooleanField(default = True) 

    sub_process_owner = models.CharField(max_length = 200) 
    created_by = models.CharField(max_length = 200) 
    created_at = models.DateTimeField(auto_now_add = True) 
    updated_at = models.DateTimeField(auto_now = True) 

形式

class createProcessForm(ModelForm): 
    class Meta: 
     model = Process 
     fields = ['name', 'order',] 

class createSubProcessForOneShotCreationForm(ModelForm): 
    class Meta: 
     model = SubProcess 
     fields = ['name',] 

模板

<form action="{% url 'processmanagement:create_process_subProcess_step' %}" method="post"> 
    {% csrf_token %} 
    <p>Process</p> 
    {{ form_process }} 
    <p>Sub Process</p> 
    {{ form_subProcess }} 
    <p></p> 
    <input type="submit" value="Submit" /> 
</form> 

視圖

def create_process_subProcess_step(request): 
    if request.method == 'POST': 
     form_process = createProcessForm(request.POST) 
     print('form_process : ' + str(form_process)) 
     form_subProcess = createSubProcessForOneShotCreationForm(request.POST) 

     if form_process.is_valid() and form_subProcess.is_valid(): 
      process_instance = form_process.save() 
      subProcess_instance = form_subProcess.save(commit=False) 
      subProcess_instance.process = process_instance 
      subProcess_instance.save() 
      return redirect('processmanagement:displayProcessAndSubProcess') 

    form_process = createProcessForm() 
    form_subProcess = createSubProcessForOneShotCreationForm() 
    context = { 
     'form_process' : form_process, 
     'form_subProcess' : form_subProcess 
    } 
    return render(request, 'processmanagement/create_process_subProcess_step', context) 

當在一個視圖中創建2個表單並保存這些表單時，它看起來像來自第二個表單的名稱的數據在DB中保存在第一個和第二個對象中，而第一個表單應該填充第一個對象，第二個表單應該填充第二個對象。例如：在網頁中，您驗證：進程名稱= A，子進程名稱= B，在Db中，進程名稱= B，子進程名稱= B。 我該如何處理？ MariaDb results

我經歷了不同的主題，如自動提交，緩存問題，數據庫問題（我已經從SQLite更改爲MariaDB），但沒有任何幫助。

Answer 1

您應該在表單實例中使用prefix，以便字段名不衝突。