refactor product search form. initialize url on form render

products/forms.py

@@ -46,14 +46,14 @@ class ProductFilterForm(forms.Form):
 
 class ProductSearchForm(forms.ModelForm):
     field_template = 'bootstrap/forms/product_search.html'
-    form_action = reverse_lazy('products:product_list')
+    form_action = 'products:product_list'
     submit_css_class = None
 
     def __init__(self, *args, **kwargs):
         self.submit_css_class = kwargs.pop('submit_css_class')
 
         self.helper = FormHelper()
-        self.helper.form_action = self.form_action
+        self.helper.form_action = reverse_lazy(self.form_action)
         self.helper.form_method = 'get'
         self.helper.layout = Layout(
             Field('name', template=self.field_template, placeholder="Поиск программы..."),