Python Django:如何防止清除表单字段?
Python Django: How to prevent form field from clearing?
我正在使用 Python Django,我有一个非常简单的表单,由一个按钮和一个输入字段组成。问题是在我提交表单后,出于某种原因清除了输入字段。那么如何防止它被清除?
这是我的 python 文件:
def index(request):
# print(f"its me {os.getcwd()}")
txt = request.GET.get("some_txt")
if (request.GET.get('mybtn')):
print(f"THIS IS THE TEXT VALUE: {txt}")
else:
print("Has not been clicked")
return render(request, "main/index.html")
这是 HTML 文件:
<form action="#" method="get">
{% csrf_token %}
<input type="text" name="some_txt">
<button type="submit" class="btn btn-primary" value="mybtn" name="mybtn">Submit</button>
</form>
您每次都呈现一个新表单,因此如果您想用旧数据填充表单,请将其传递给模板:
def index(request):
txt = request.GET.get('some_txt', '')
if (request.GET.get('mybtn')):
print(f'THIS IS THE TEXT VALUE: {txt}')
else:
print('Has not been clicked')
return render(request, 'main/index.html', <strong>{'txt': txt}</strong>)
在表单中,您将其用作值:
<form action="" method="get">
<input type="text" name="some_txt"<strong> value="{{ txt }}"</strong>>
<button type="submit" class="btn btn-primary" value="mybtn" name="mybtn">Submit</button>
</form>
或明确功能:
def index(request):
txt = request.GET.get('some_txt', '')
if request.GET.get('mybtn') == 'mybtn2':
txt = ''
else if request.GET.get('mybtn'):
print(f'THIS IS THE TEXT VALUE: {txt}')
else:
print('Has not been clicked')
return render(request, 'main/index.html', <strong>{'txt': txt}</strong>)
因此在 HTML 侧我们使用第二个按钮:
<form action="" method="get">
<input type="text" name="some_txt" value="{{ txt }}">
<button type="submit" class="btn btn-primary" value="mybtn" name="mybtn">Submit</button>
<button type="submit" class="btn" <strong>value="mybtn2"</strong> name="mybtn">Reset</button>
</form>
我正在使用 Python Django,我有一个非常简单的表单,由一个按钮和一个输入字段组成。问题是在我提交表单后,出于某种原因清除了输入字段。那么如何防止它被清除?
这是我的 python 文件:
def index(request):
# print(f"its me {os.getcwd()}")
txt = request.GET.get("some_txt")
if (request.GET.get('mybtn')):
print(f"THIS IS THE TEXT VALUE: {txt}")
else:
print("Has not been clicked")
return render(request, "main/index.html")
这是 HTML 文件:
<form action="#" method="get">
{% csrf_token %}
<input type="text" name="some_txt">
<button type="submit" class="btn btn-primary" value="mybtn" name="mybtn">Submit</button>
</form>
您每次都呈现一个新表单,因此如果您想用旧数据填充表单,请将其传递给模板:
def index(request):
txt = request.GET.get('some_txt', '')
if (request.GET.get('mybtn')):
print(f'THIS IS THE TEXT VALUE: {txt}')
else:
print('Has not been clicked')
return render(request, 'main/index.html', <strong>{'txt': txt}</strong>)
在表单中,您将其用作值:
<form action="" method="get">
<input type="text" name="some_txt"<strong> value="{{ txt }}"</strong>>
<button type="submit" class="btn btn-primary" value="mybtn" name="mybtn">Submit</button>
</form>
或明确功能:
def index(request):
txt = request.GET.get('some_txt', '')
if request.GET.get('mybtn') == 'mybtn2':
txt = ''
else if request.GET.get('mybtn'):
print(f'THIS IS THE TEXT VALUE: {txt}')
else:
print('Has not been clicked')
return render(request, 'main/index.html', <strong>{'txt': txt}</strong>)
因此在 HTML 侧我们使用第二个按钮:
<form action="" method="get">
<input type="text" name="some_txt" value="{{ txt }}">
<button type="submit" class="btn btn-primary" value="mybtn" name="mybtn">Submit</button>
<button type="submit" class="btn" <strong>value="mybtn2"</strong> name="mybtn">Reset</button>
</form>