id,summary,reporter,owner,description,type,status,component,version,severity,resolution,keywords,cc,stage,has_patch,needs_docs,needs_tests,needs_better_patch,easy,ui_ux 18949,model_to_dict is slow for tables with very large fields,brian@…,nobody,"In ModelForms, when populating initial data using django.forms.models.model_to_dict, tables with very large text fields can slow things down quite a bit. This can be fixed by using the values_list method of a queryset. The current line: {{{#!python data[f.name] = [obj.pk for obj in f.value_from_object(instance)] }}} could be written: {{{#!python data[f.name] = f.value_from_object(instance).values_list('pk', flat=True) }}}",Cleanup/optimization,closed,Forms,1.4,Normal,fixed,,,Accepted,0,0,0,0,1,0