Converts a model to a form given

            :param label_columns:
                A dictionary with the column's labels.
            :param inc_columns:
                A list with the columns to include
            :param description_columns:
                A dictionary with a description for cols.
            :param validators_columns:
                A dictionary with WTForms validators ex::

                    validators={'personal_email':EmailValidator}

            :param extra_fields:
                A dictionary containing column names and a WTForm
                Form fields to be added to the form, these fields do not
                 exist on the model itself ex::

                    extra_fields={'some_col':BooleanField('Some Col', default=False)}

            :param filter_rel_fields:
                A filter to be applied on relationships

def create_form(self, label_columns=None, inc_columns=None,
                    description_columns=None, validators_columns=None,
                    extra_fields=None, filter_rel_fields=None):
        """
            Converts a model to a form given

            :param label_columns:
                A dictionary with the column's labels.
            :param inc_columns:
                A list with the columns to include
            :param description_columns:
                A dictionary with a description for cols.
            :param validators_columns:
                A dictionary with WTForms validators ex::

                    validators={'personal_email':EmailValidator}

            :param extra_fields:
                A dictionary containing column names and a WTForm
                Form fields to be added to the form, these fields do not
                 exist on the model itself ex::

                    extra_fields={'some_col':BooleanField('Some Col', default=False)}

            :param filter_rel_fields:
                A filter to be applied on relationships
        """
        label_columns = label_columns or {}
        inc_columns = inc_columns or []
        description_columns = description_columns or {}
        validators_columns = validators_columns or {}
        extra_fields = extra_fields or {}
        form_props = {}
        for col_name in inc_columns:
            if col_name in extra_fields:
                form_props[col_name] = extra_fields.get(col_name)
            else:
                self._convert_col(col_name, self._get_label(col_name, label_columns),
                                  self._get_description(col_name, description_columns),
                                  self._get_validators(col_name, validators_columns),
                                  filter_rel_fields, form_props)
        return type('DynamicForm', (DynamicForm,), form_props)