所以我是Django的新手，我创建了一个动态使用总共8个表单的View。有一个基本表单始终显示，然后只有当用户从下拉列表中选择该选项时才会显示另外7个表单（下拉列表位于HTML模板中）。
我现在正在尝试验证表单字段，当我静态显示所有8个表单时，每个表单的验证（清理方法）都能完美运行！但是，当我将其更改为根据用户选择动态显示表单时，基本表单的验证每次都会失败。
知道为什么会这样吗？如果有帮助，我可以提供表格/视图的实例！
模板：
<form0 id="BaseForm" action="/test_created/" method="post">
{% csrf_token %}
{{create_test_form.as_ul}} <br><br>
</form0>
<form1 id="vc1Form" action="" method="post" style="display:none">
{% csrf_token %}
{{vc1_form.as_ul}} <br><br>
</form1>
<form2 id="vc2Form" action="" method="post" style="display:none">
{% csrf_token %}
{{vc2_form.as_ul}} <br><br>
</form2>
<form3 id="vc3Form" action="" method="post" style="display:none">
{% csrf_token %}
{{vc3_form.as_ul}} <br><br>
</form3>
<form4 id="vc4Form" action="" method="post" style="display:none">
{% csrf_token %}
{{vc4_form.as_ul}} <br><br>
</form4>
<form5 id="vc5Form" action="" method="post" style="display:none">
{% csrf_token %}
{{vc5_form.as_ul}} <br><br>
</form5>
<form6 id="vc6Form" action="" method="post" style="display:none">
{% csrf_token %}
{{vc6_form.as_ul}} <br><br>
</form6>
<form7 id="vc7Form" action="" method="post" style="display:none">
{% csrf_token %}
{{vc7_form.as_ul}} <br><br>
</form7>
<div>
<select id="validation_classes_id" name="all_validation_classes" onchange="showForm()">
<option value="%">Choose the validation class</option>
{% for val_class in all_validation_classes %}
<option value="{{ val_class.id }}">{{ val_class.id}} {{val_class.name }}</option>
{% endfor %}
</select> <br> <br>
<form id="submit" action="" method="post">
{% csrf_token %}
<input type="submit" value="Submit" onclick=""/>
</form>
</div>
<br><br>
<script>
function showForm(){
if (validation_classes_id.value == 1){
console.log("Chose validation class 1");
var div = document.getElementById('vc1Form');
console.log(div)
div.style.display='block';
}
else if (validation_classes_id.value == 2){
console.log("Chose validation class 2");
var div = document.getElementById('vc2Form');
console.log(div)
div.style.display='block';
}
else if (validation_classes_id.value == 3){
console.log("Chose validation class 3");
var div = document.getElementById('vc3Form');
console.log(div)
div.style.display='block';
}
else if (validation_classes_id.value == 4){
console.log("Chose validation class 4");
var div = document.getElementById('vc4Form');
console.log(div)
div.style.display='block';
}
else if (validation_classes_id.value == 5){
console.log("Chose validation class 5");
var div = document.getElementById('vc5Form');
console.log(div)
div.style.display='block';
}
else if (validation_classes_id.value == 6){
console.log("Chose validation class 6");
var div = document.getElementById('vc6Form');
console.log(div)
div.style.display='block';
}
else if (validation_classes_id.value == 7){
console.log("Chose validation class 7");
var div = document.getElementById('vc7Form');
console.log(div)
div.style.display='block';
}
}
</script>
查看：
def create_test(request):
context = {
'all_validation_classes': ValidationClass.objects.all(),
'create_test_form': CreateTestForm,
'vc1_form': VC1Form,
'vc2_form': VC2Form,
'vc3_form': VC3Form,
'vc4_form': VC4Form,
'vc5_form': VC5Form,
'vc6_form': VC6Form,
'vc7_form': VC7Form
}
if request.method == 'POST':
create_test_form = CreateTestForm(request.POST)
vc1_form = VC1Form(request.POST)
vc2_form = VC2Form(request.POST)
vc3_form = VC3Form(request.POST)
vc4_form = VC4Form(request.POST)
vc5_form = VC5Form(request.POST)
vc6_form = VC6Form(request.POST)
vc7_form = VC7Form(request.POST)
if create_test_form.is_valid():
print("This is where I am")
print("Create Test form looks valid")
vc_list = request.POST.getlist('validation_class', None)
selected_vc = ValidationClass.objects.filter(pk__in=vc_list)
global_val_class = selected_vc
if vc1_form.is_valid():
print("VC1Form is valid")
else:
print("Failing at VC1")
return HttpResponseRedirect('/test_not_created/')
if vc2_form.is_valid():
print("VC2Form is valid")
else:
print("Failing at VC2")
return HttpResponseRedirect('/test_not_created/')
if vc3_form.is_valid():
print("VC3Form is valid")
else:
print("Failing at VC3")
return HttpResponseRedirect('/test_not_created/')
if vc4_form.is_valid():
print("VC4Form is valid")
else:
print("Failing at VC4")
return HttpResponseRedirect('/test_not_created/')
if vc5_form.is_valid():
print("VC5Form is valid")
else:
print("Failing at VC5")
return HttpResponseRedirect('/test_not_created/')
if vc6_form.is_valid():
print("VC6Form is valid")
else:
print("Failing at VC6")
return HttpResponseRedirect('/test_not_created/')
if vc7_form.is_valid():
print("VC7Form is valid")
else:
print("Failing at VC7")
return HttpResponseRedirect('/test_not_created/')
return HttpResponseRedirect('/test_created/')
else:
print("Failing at create_test")
return HttpResponseRedirect('/test_not_created/')
else:
create_test_form = CreateTestForm()
vc1_form = VC1Form()
vc2_form = VC2Form()
vc3_form = VC3Form()
vc4_form = VC4Form()
vc5_form = VC5Form()
vc6_form = VC6Form()
vc7_form = VC7Form()
return render (request, 'create_test.html', context)
形式：
class CreateTestForm(forms.ModelForm):
class Meta:
model = Test
fields = ['name', 'test_group', 'description', 'query_text', 'failure_condition', 'status']
def clean_status(self):
print("This is where I am")
print(self.cleaned_data)
def getKey(self):
return "create_test_form"
class VC1Form(forms.Form):
expected_relation = forms.ChoiceField(choices = [('<','<'), ('>','>'), ('=','='), ('<=','<='), ('>=','>='), ('!=','!=')], required = True, label = 'Expected Relation: ')
num_rows = forms.IntegerField(initial = 0)
def getKey(self):
return "vc1_form"
class VC2Form(forms.Form):
expected_relation = forms.ChoiceField(choices=[('<', '<'), ('>', '>'), ('=', '='), ('<=', '<='), ('>=', '>='), ('!=', '!=')], required=True, label='Expected Relation: ')
comparing_value_type = forms.ChoiceField(choices=[('Integer', 'Integer'), ('String', 'String')], required=True, label='Comparing Value Type')
comparing_value = forms.CharField(initial = 0)
def clean_comparing_value(self):
exp_rel = self.cleaned_data['expected_relation']
input_val_type = self.cleaned_data['comparing_value_type']
input_val = self.cleaned_data['comparing_value']
if (input_val_type == 'Integer'):
print("I am in integer")
try:
int(input_val)
print(int(input_val))
return input_val
except ValueError:
print("Getting a value error")
raise forms.ValidationError('Should be an Integer')
elif (input_val_type == 'String'):
print("I am in string")
if (exp_rel != '!=' and exp_rel != '='):
print("I am in here...")
raise forms.ValidationError('Must have either = or != as comparator for String')
try:
int(input_val)
print(int(input_val))
print("getting a value error")
raise forms.ValidationError('Should be a string')
except ValueError:
print("No value error")
return input_val
def getKey(self):
return "vc2_form"
class VC3Form(forms.Form):
comparing_value_2 = forms.CharField(label = 'Comparing Value', initial=" ") #Need to figure out if its needed to make this into an array?
# Not sure for now if there is a need to validate this data
def getKey(self):
return "vc3_form"
class VC4Form(forms.Form):
# # This is mostly not needed as we will only check the values in the first column of the query results (as per documentation)
wanted_value = forms.CharField(label = 'Name of corresponding column', initial=" ") #Need to figure out how the input will be an actual variable from the select query
acceptable_error_rate = forms.IntegerField(min_value = 0, max_value = 100, initial=0)
def getKey(self):
return "vc4_form"
class VC5Form(forms.Form):
expected_relation_2 = forms.ChoiceField(choices=[('<', '<'), ('>', '>'), ('=', '='), ('<=', '<='), ('>=', '>='), ('!=', '!=')], required=True,label='Expected Relation: ')
comparing_value_type_2 = forms.ChoiceField(choices=[('Integer', 'Integer'), ('String', 'String')], required=True, label='Comparing Value Type')
def clean_comparing_value_type_2(self):
expected_relation_choices = ('<', '>', '=', '<=', '>=', '!=')
exp_rel = self.cleaned_data['expected_relation_2']
input_val_type = self.cleaned_data['comparing_value_type_2']
print("This is the input val type")
print(input_val_type)
if (input_val_type == 'String'):
print("I get in here")
if (exp_rel != '=' and exp_rel != '!='):
raise forms.ValidationError('Must have either = or != as comparator for String')
return exp_rel
def getKey(self):
return "vc5_form"
class VC6Form(forms.Form):
expected_relation_3 = forms.ChoiceField(choices=[('<', '<'), ('>', '>'), ('=', '='), ('<=', '<='), ('>=', '>='), ('!=', '!=')], required=True, label='Expected Relation: ')
def getKey(self):
return "vc6_form"
class VC7Form(forms.Form):
expected_relation_one = forms.ChoiceField(choices=[('<', '<'), ('>', '>'), ('=', '='), ('<=', '<='), ('>=', '>='), ('!=', '!=')], required=True, label='Expected Relation to First Value: ')
comparing_value_one = forms.IntegerField(label = 'First comparing value', initial=0)
expected_relation_two = forms.ChoiceField(choices=[('<', '<'), ('>', '>'), ('=', '='), ('<=', '<='), ('>=', '>='), ('!=', '!=')], required=True, label='Expected Relation to Second Value: ')
comparing_value_two = forms.IntegerField(label = 'Second comparing value', initial=0)
def getKey(self):
return "vc7_form"