python - is there any method available in django models, so that i can access its fieldname using string? -

i want update fields using ajax:

models.py

class employerinfo(models.model):     employer = models.foreignkey(employer, unique=true)     address=models.charfield(max_length=100, blank=true)     city=models.charfield(max_length=40, blank=true) 

contactinfo.html

<form id="ajax-form">     <fieldset>          <legend>contact information</legend>          <label>address:</label>          <input type="text" id="address" value="{{ empinfo.address }}" />         <label>city:</label>         <input type="text" id="city" value="{{ empinfo.city }}" /> <i class="icon-ok"></i>     </fieldset> </form> <script>  $(document).ready(function() {     $("form#ajax-form").find(":input").change(function()      {        var field_name=$(this).attr("id");        var field_val=$(this).val();        var params ={ param1:field_name, param2:field_val };         $.ajax({ url: "/employer/contactinfo/save/",                 datatype: "json",                 data: params,                            success: setresult                    });     }); }); 

urls.py

.....other urls

url(r'^employer/contactinfo/save/$', 'save_employer_info_ajax'), 

view.py

def save_employer_info_ajax(request):     emp=employer.objects.get(user=request.user)     emp_info=employerinfo.objects.get(employer=emp)     f_name=request.get['param1']     f_value=request.get['param2']     return httpresponse(json.dumps({"issuccess": 'yes'}), content_type="application/json") 

f_name name of field want update. lets assume 'address'. how can access attribute, (ie emp_info.address) can update (ie emp_info.address=f_value) using emp_info.save() function.

is there method available other emp_info.address, can access field name using string (ie emp_info[f_name]=f_value ) or something??

you use getattr baked python

attr_name = 'employer_id'  if getattr(employee, attr_name) == 3:     ...