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@ -2,16 +2,13 @@ from braces.views import FormMessagesMixin |
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from crispy_forms.helper import FormHelper |
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from django import forms |
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from django.conf.urls import url |
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from django.core.urlresolvers import reverse, reverse_lazy |
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from django.utils.functional import cached_property |
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from django.core.urlresolvers import reverse |
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from django.utils.translation import ugettext_lazy as _ |
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from django.views.generic import (CreateView, DeleteView, DetailView, ListView, |
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UpdateView) |
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from sapl.layout import SaplFormLayout |
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NO_ENTRIES_MSG = _('Não existem registros') |
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def from_to(start, end): |
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return list(range(start, end + 1)) |
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@ -51,33 +48,27 @@ def get_field_display(obj, fieldname): |
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value = getattr(obj, 'get_%s_display' % fieldname)() |
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else: |
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value = getattr(obj, fieldname) |
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if value is None: |
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display = '' |
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elif 'date' in str(type(value)): |
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display = value.strftime("%d/%m/%Y") |
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display = value.strftime("%d/%m/%Y") # TODO: localize |
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elif 'bool' in str(type(value)): |
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display = 'Sim' if value else 'Não' |
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else: |
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display = str(value) |
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return verbose_name, display |
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class Crud(object): |
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pass |
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class CrispyLayoutFormMixin(object): |
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def get_form_class(self): |
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def build_crud(model, help_path, layout): |
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crud = Crud() |
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crud.model = model |
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crud.help_path = help_path |
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crud.namespace = model._meta.model_name |
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layout = self.layout |
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class CrispyForm(forms.ModelForm): |
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class Meta: |
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model = crud.model |
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model = self.model |
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exclude = [] |
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def __init__(self, *args, **kwargs): |
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@ -85,142 +76,168 @@ def build_crud(model, help_path, layout): |
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self.helper = FormHelper() |
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self.helper.layout = SaplFormLayout(*layout) |
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crud.model_form = CrispyForm |
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return CrispyForm |
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@property |
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def list_field_names(self): |
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'''The list of field names to display on table |
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def in_namespace(url_name): |
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return '%s:%s' % (crud.namespace, url_name) |
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This base implementation returns the field names |
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in the first fieldset of the layout. |
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''' |
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rows = self.layout[0][1:] |
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return [fieldname for row in rows for fieldname, __ in row] |
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def make_form_invalid_message(msg): |
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return '%s %s' % (_('Formulário inválido.'), msg) |
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def get_column(self, fieldname, span): |
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obj = self.get_object() |
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verbose_name, text = get_field_display(obj, fieldname) |
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return { |
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'id': fieldname, |
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'span': span, |
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'verbose_name': verbose_name, |
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'text': text, |
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} |
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@property |
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def fieldsets(self): |
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return [ |
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{'legend': legend, |
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'rows': [[self.get_column(fieldname, span) |
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for fieldname, span in row] |
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for row in rows] |
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} for legend, *rows in self.layout] |
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class BaseMixin(object): |
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model = crud.model |
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verbose_name = crud.model._meta.verbose_name |
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verbose_name_plural = crud.model._meta.verbose_name_plural |
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class BaseCrudMixin(CrispyLayoutFormMixin): |
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list_url = reverse_lazy(in_namespace('list')) |
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create_url = reverse_lazy(in_namespace('create')) |
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help_path = crud.help_path # FIXME |
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@property |
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def namespace(self): |
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return self.model._meta.model_name |
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def resolve_url(self, url_name, args=None): |
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return reverse('%s:%s' % (self.namespace, url_name), args=args) |
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@property |
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def list_url(self): |
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return self.resolve_url('list') |
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def get_url_for_this_object(self, url_name): |
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return reverse(in_namespace(url_name), args=(self.object.id,)) |
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@property |
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def create_url(self): |
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return self.resolve_url('create') |
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@property |
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def detail_url(self): |
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return self.get_url_for_this_object('detail') |
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return self.resolve_url('detail', args=(self.object.id,)) |
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@property |
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def update_url(self): |
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return self.get_url_for_this_object('update') |
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return self.resolve_url('update', args=(self.object.id,)) |
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@property |
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def delete_url(self): |
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return self.get_url_for_this_object('delete') |
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return self.resolve_url('delete', args=(self.object.id,)) |
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def get_template_names(self): |
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names = super(BaseMixin, self).get_template_names() |
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names = super(BaseCrudMixin, self).get_template_names() |
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names.append("crud/%s.html" % |
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self.template_name_suffix.lstrip('_')) |
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return names |
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class CrudListView(BaseMixin, ListView): |
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title = BaseMixin.verbose_name_plural |
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paginate_by = 10 |
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no_entries_msg = NO_ENTRIES_MSG |
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@property |
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def verbose_name(self): |
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return self.model._meta.verbose_name |
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@cached_property |
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def field_names(self): |
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'''The list of field names to display on table |
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@property |
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def verbose_name_plural(self): |
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return self.model._meta.verbose_name_plural |
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This base implementation returns the field names |
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in the first fieldset of the layout. |
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''' |
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rows = layout[0][1:] |
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return [fieldname for row in rows for fieldname, __ in row] |
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def get_rows(self, object_list): |
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return [[(get_field_display(obj, name)[1], |
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obj.pk if i == 0 else None) |
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for i, name in enumerate(self.field_names)] |
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for obj in object_list |
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] |
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class CrudListMixin(): |
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paginate_by = 10 |
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no_entries_msg = _('Nenhum registro encontrado.') |
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@property |
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def title(self): |
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return self.verbose_name_plural |
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def _as_row(self, obj): |
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return [ |
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(get_field_display(obj, name)[1], obj.pk if i == 0 else None) |
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for i, name in enumerate(self.list_field_names)] |
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def get_context_data(self, **kwargs): |
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context = super(CrudListView, self).get_context_data(**kwargs) |
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paginator = context['paginator'] |
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context = super(CrudListMixin, self).get_context_data(**kwargs) |
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# pagination |
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page_obj = context['page_obj'] |
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paginator = context['paginator'] |
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context['page_range'] = make_pagination( |
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page_obj.number, paginator.num_pages) |
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# rows |
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object_list = context['object_list'] |
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context['rows'] = [self._as_row(obj) for obj in object_list] |
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context['headers'] = [ |
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self.model._meta.get_field(fieldname).verbose_name |
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for fieldname in self.field_names] |
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context['rows'] = self.get_rows(object_list) |
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context['NO_ENTRIES_MSG'] = NO_ENTRIES_MSG |
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for fieldname in self.list_field_names] |
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context['NO_ENTRIES_MSG'] = self.no_entries_msg |
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return context |
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class CrudCreateView(BaseMixin, FormMessagesMixin, CreateView): |
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form_class = crud.model_form |
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title = _('Adicionar %(verbose_name)s') % { |
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'verbose_name': BaseMixin.verbose_name} |
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def make_form_invalid_message(msg): |
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return '%s %s' % (_('Formulário inválido.'), msg) |
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class CrudCreateMixin(FormMessagesMixin): |
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form_valid_message = _('Registro criado com sucesso!') |
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form_invalid_message = make_form_invalid_message( |
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_('O registro não foi criado.')) |
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cancel_url = BaseMixin.list_url |
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def form_invalid(self, form): |
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""" |
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If the form is invalid, re-render the context data with the |
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data-filled form and errors. |
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""" |
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return self.render_to_response(self.get_context_data(form=form)) |
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@property |
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def title(self): |
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return _('Adicionar %(verbose_name)s') % { |
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'verbose_name': self.verbose_name} |
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@property |
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def cancel_url(self): |
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return self.list_url |
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def get_success_url(self): |
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return self.detail_url |
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class CrudDetailView(BaseMixin, DetailView): |
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class CrudDetailMixin(): |
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@property |
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def title(self): |
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return self.get_object() |
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# TODO: can we just use view.object in the templates???? |
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return str(self.object) |
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def get_column(self, fieldname, span): |
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obj = self.get_object() |
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verbose_name, text = get_field_display(obj, fieldname) |
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return { |
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'id': fieldname, |
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'span': span, |
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'verbose_name': verbose_name, |
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'text': text, |
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} |
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@property |
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def fieldsets(self): |
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return [ |
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{'legend': legend, |
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'rows': [[self.get_column(fieldname, span) |
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for fieldname, span in row] |
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for row in rows] |
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} for legend, *rows in layout] |
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class CrudUpdateMixin(FormMessagesMixin): |
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class CrudUpdateView(BaseMixin, FormMessagesMixin, UpdateView): |
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form_class = crud.model_form |
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form_valid_message = _('Registro alterado com sucesso!') |
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form_invalid_message = make_form_invalid_message( |
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_('Suas alterações não foram salvas.')) |
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@property |
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def title(self): |
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return self.get_object() |
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return str(self.object) |
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def get_success_url(self): |
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@property |
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def cancel_url(self): |
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return self.detail_url |
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def cancel_url(self): |
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def get_success_url(self): |
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return self.detail_url |
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class CrudDeleteView(BaseMixin, FormMessagesMixin, DeleteView): |
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class CrudDeleteMixin(FormMessagesMixin): |
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form_valid_message = _('Registro excluído com sucesso!') |
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form_invalid_message = make_form_invalid_message( |
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_('O registro não foi excluído.')) |
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@ -228,14 +245,39 @@ def build_crud(model, help_path, layout): |
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def get_success_url(self): |
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return self.list_url |
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crud.CrudListView = CrudListView |
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crud.CrudCreateView = CrudCreateView |
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crud.CrudDetailView = CrudDetailView |
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crud.CrudUpdateView = CrudUpdateView |
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crud.CrudDeleteView = CrudDeleteView |
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# XXX transform into a property of Crud to enable override |
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crud.urlpatterns = [ |
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class Crud(object): |
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def __init__(self, model, help_path, layout, |
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base_mixin=BaseCrudMixin, |
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list_mixin=CrudListMixin, |
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create_mixin=CrudCreateMixin, |
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detail_mixin=CrudDetailMixin, |
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update_mixin=CrudUpdateMixin, |
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delete_mixin=CrudDeleteMixin): |
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class CrudMixin(base_mixin): |
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pass |
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CrudMixin.model = model |
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CrudMixin.help_path = help_path |
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CrudMixin.layout = layout |
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class CrudListView(CrudMixin, list_mixin, ListView): |
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pass |
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class CrudCreateView(CrudMixin, create_mixin, CreateView): |
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pass |
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class CrudDetailView(CrudMixin, detail_mixin, DetailView): |
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pass |
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class CrudUpdateView(CrudMixin, update_mixin, UpdateView): |
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pass |
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class CrudDeleteView(CrudMixin, delete_mixin, DeleteView): |
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pass |
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self.urlpatterns = [ |
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url(r'^$', CrudListView.as_view(), name='list'), |
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url(r'^create$', CrudCreateView.as_view(), name='create'), |
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url(r'^(?P<pk>\d+)$', CrudDetailView.as_view(), name='detail'), |
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@ -244,6 +286,9 @@ def build_crud(model, help_path, layout): |
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url(r'^(?P<pk>\d+)/delete$', |
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CrudDeleteView.as_view(), name='delete'), |
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] |
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crud.urls = crud.urlpatterns, crud.namespace, crud.namespace |
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return crud |
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self.namespace = CrudMixin().namespace |
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self.urls = self.urlpatterns, self.namespace, self.namespace |
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# FIXME Refatorar código que precisa desse atributo e remover |
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self.CrudDetailView = CrudDetailView |
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Marcio Mazza
9 years ago