Access Multiselect Form Field in Flask
I have a multiselect in html file like this:
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> In sometimes, If you are using Ajax POST method then check the parameter name in network tab. Check the image attached that describes how to verify the parameter names.
In Flask view:
you can access the list responce based on parameter name.
request.form.getlist('mymultiselect[]')or
request.form.getlist('mymultiselect')讨论(0) -
You want to use the getlist() function to get a list of values:
multiselect = request.form.getlist('mymultiselect')You do not need to add
[]to the name to make this work; in fact, the[]will not help, don't use it at all.讨论(0) -
You can create a function to get values as dictionary
def __get_form_data(self, method='POST', compare_with=dict()): # Get form MiniFieldStorage items form = cgi.FieldStorage(fp=self.rfile, headers=self.headers, environ={ 'REQUEST_METHOD' : method }) # Convert to dictionary return { key.rstrip('[]'):form.getlist(key) if key.endswith('[]') else form.getvalue(key) for key in form.keys() if compare_with.get(key)!=form.getvalue(key) }讨论(0)
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