Django प्रपत्र फ़ील्ड - नेस्टेड तालिका

--  XML   select t.id, (xpath('/item/@n_phone', nt))[1] as n_phone1, (xpath('/item/@is_primary', nt))[1] as is_primary1, (xpath('/item/@n_phone', nt))[2] as n_phone2, (xpath('/item/@is_primary', nt))[2] as is_primary2 from docflow_document17 t cross join unnest(xpath('/xml/item', t.nested_table::xml)) as nt; --   XML- select t.id from docflow_document17 t where t.id = 2 and ('1231234', 'False') in ( select (xpath('/item/@n_phone', nt_row))[1]::text, (xpath('/item/@is_primary', nt_row))[1]::text from unnest(xpath('/xml/item', t.nested_table::xml)) as nt_row ); 

 class XMLTableWidget(widgets_django.Textarea): class Media: js = (settings.STATIC_URL + 'forms_custom/xmltable.js',) def __init__(self, formset_class, attrs=None): super(XMLTableWidget, self).__init__(attrs=None) self._Formset = formset_class def render(self, name, value, attrs=None): initial = [] if value: xml = etree.fromstring(value) for row in xml: initial.append(row.attrib) formset = self._Formset(initial=initial, prefix=name) return render_to_string('forms_custom/xmltable.html', {'formset': formset}) def value_from_datadict(self, data, files, name): u"""    ,    XML  -  formset-  ,    initial- :    formset-  ,       """ formset_data = {k: v for k, v in data.items() if k.startswith(name)} formset = self._Formset(data=formset_data, prefix=name) if formset.is_valid(): from lxml.builder import E xml_items = [] for item in formset.cleaned_data: if item and not item[formset_deletion_field_name]: del item[formset_deletion_field_name] item = {k: unicode(v) for k, v in item.items()} xml_items.append(E.item("", item)) xml = E.xml(*xml_items) return etree.tostring(xml, pretty_print=False) else: initial_value = data.get('initial-%s' % name) if initial_value: return initial_value else: raise Exception(_('Error in table and initial not find')) 

 class XMLTableField(fields.Field): widget = widgets_custom.XMLTableWidget hidden_widget = widgets_custom.XMLTableHiddenWidget default_error_messages = {'invalid': _('Error in table')} def __init__(self, formset_class, form_prefix, *args, **kwargs): kwargs['show_hidden_initial'] = True #       super(XMLTableField, self).__init__(*args, **kwargs) self._formset_class = formset_class self._formset_prefix = form_prefix self._procss_widget_data_cache = {} self._prepare_value_cache = {} def prepare_value(self, value): u"""                    unicode,   XML,        initial  ,     POST-,   ,   ,     formset,  xml_initial   hidden_initial .      show_hidden_initial = True     ,    . """ if value is None: return {'xml_initial': value, 'formset': self._formset_class(initial=[], prefix=self._formset_prefix)} elif type(value) == unicode: value_hash = hash(value) if value_hash not in self._prepare_value_cache: initial = [] if value: xml = etree.fromstring(value) for row in xml: #    'False'  False, #    XML    , #     bool attrs = {} for k,v in row.attrib.items(): attrs[k] = False if v == 'False' else v initial.append(attrs) formset = self._formset_class(initial=initial, prefix=self._formset_prefix) self._prepare_value_cache[value_hash] = formset return {'xml_initial': value, 'formset': self._prepare_value_cache[value_hash]} elif type(value) == dict: if 'xml' not in value: formset = self._widget_data_to_formset(value) return {'xml_initial': value['initial'], 'formset': formset} return value def clean(self, value): u"""       ,  ,    formset-,    formset   XML   _formset_to_xml   ValidationError,  formset   """ formset = self._widget_data_to_formset(value, 'clean') return self._formset_to_xml(formset) def _formset_to_xml(self, formset): u"""   XML    .   _has_changed    XML   clean    cleaned_data """ if formset.is_valid(): from lxml.builder import E xml_items = [] for item in formset.cleaned_data: if item and not item.get(formset_deletion_field_name, False): if formset_deletion_field_name in item: del item[formset_deletion_field_name] item = {k: unicode(v) for k, v in item.items()} xml_items.append(E.item("", item)) xml = E.xml(*xml_items) xml_str = etree.tostring(xml, pretty_print=False) return xml_str else: raise ValidationError(self.error_messages['invalid'], code='invalid') def _widget_data_to_formset(self, value, call_from=None): u"""   POST-,   formset-   ,    prepare_value     ,     FormSet-      """ #     -   self.prepare_value formset_hash = hash(frozenset(value.items())) if formset_hash not in self._procss_widget_data_cache: formset = self._formset_class(data=value, prefix=self._formset_prefix) self._procss_widget_data_cache[formset_hash] = formset return formset else: return self._procss_widget_data_cache[formset_hash] def _has_changed(self, initial, data): u"""     .     formset   ,   XML   c  ,   initial-   XML """ formset = self._widget_data_to_formset(data) try: data_value = self._formset_to_xml(formset) except ValidationError: return True return data_value != initial 

 class XMLTableHiddenWidget(widgets_django.HiddenInput): def render(self, name, value, attrs=None): u"""    xml_initial    render """ value = value['xml_initial'] return super(XMLTableHiddenWidget, self).render(name, value, attrs) 

 class XMLTableWidget(widgets_django.Widget): class Media: js = (settings.STATIC_URL + 'forms_custom/xmltable.js',) def render(self, name, value, attrs=None): u"""    formset,   initial   data   ,     """ formset = value['formset'] return render_to_string('forms_custom/xmltable.html', {'formset': formset}) def value_from_datadict(self, data, files, name): u"""    ,   formset-     clean     ,  initial-,        """ formset_data = {k: v for k, v in data.items() if k.startswith(name)} initial_key = 'initial-%s' % name formset_data['initial'] = data[initial_key] return formset_data 

 {% load base_tags %} {% load base_filters %} {{formset.management_form}} {% if formset.non_field_errors %} <div class='alert alert-danger'> {% for error in form.non_field_errors %} {{ error }}<br/> {% endfor %} </div> {% endif %} <table> {% for form in formset %} {% if forloop.first %} <tr> {% for field in form.visible_fields %} {% if field.name == 'DELETE' %} <td></td> {% else %} <td>{{field.label}}</td> {% endif %} {% endfor %} </tr> {% endif %} <tr> {% for field in form.visible_fields %} {% if field.name == 'DELETE' %} <th > <div class='hide'>{{field}}</div> <a onclick="xmltable_mark_deleted(this, '{{field.auto_id}}')" class="pointer"> <span class="glyphicon glyphicon-remove"></span> </a> </th> {% else %} <td> {{ field|add_widget_css:"form-control" }} {% if field.errors %} <span class="help-block"> {% for error in field.errors %} {{ error }}<br/> {% endfor %} </span> {% endif %} </td> {% endif %} {% endfor %} </tr> {% endfor %} </table> 

 function xmltable_mark_deleted(p_a, p_checkbox_id) { var chb = $('#' + p_checkbox_id) var row = $(p_a).parents('tr') if(chb.prop('checked')) { chb.removeProp('checked') row.css('background-color', 'white') } else { chb.attr('checked', '1') row.css('background-color', '#f2dede') } } 

 class NestedTableForm(forms.Form): phone_type = forms.ChoiceField(label=u"", choices=[('', '---'), ('1', '.'), ('2', '.')], required=False) n_phone = forms.CharField(label=u"", required=False) is_primary = forms.BooleanField(label=u"", required=False, widget=forms.CheckboxInput(check_test=boolean_check)) nested_table_formset_class = formset_factory(NestedTableForm, can_delete=True)