Django Forms：將參數傳遞給表格

Question

如何將參數傳遞給我的表單？

someView().. 
    form = StylesForm(data_dict) # I also want to pass in site_id here. 

class StylesForm(forms.Form): 
    # I want access to site_id here 

編輯，基於以下答案：

someView().. 
    form = StylesForm(data_dict, site_id = 1) 

class StylesForm(forms.Form): 
    def __init__(self,*args,**kwargs): 
     self.site_id = kwargs.pop('site_id') 
     super(StylesForm,self).__init__(*args,**kwargs) 

    height = forms.CharField(widget=forms.TextInput(attrs={'size':site_id})) 

Answer 1

你應該定義__init__方法的形式，這樣的：

class StylesForm(forms.Form): 
    def __init__(self,*args,**kwargs): 
     self.site_id = kwargs.pop('site_id') 
     super(StylesForm,self).__init__(*args,**kwargs) 

當然，你不能訪問self.site_id直到

該對象已創建，所以行：

 height = forms.CharField(widget=forms.TextInput(attrs={'size':site_id})) 

是沒有意義的。表單創建完成後，必須將該屬性添加到小部件中。嘗試是這樣的：

class StylesForm(forms.Form): 
    def __init__(self,*args,**kwargs): 
     self.site_id = kwargs.pop('site_id') 
     super(StylesForm,self).__init__(*args,**kwargs) 
     self.fields['height'].widget = forms.TextInput(attrs={'size':site_id}) 

    height = forms.CharField() 

（未測試）