Add general table implementation to crud list

sapl/crud.py

@@ -3,11 +3,15 @@ from crispy_forms.helper import FormHelper
 from django import forms
 from django.conf.urls import url
 from django.core.urlresolvers import reverse, reverse_lazy
-from django.utils.translation import ugettext as _
+from django.utils.translation import ugettext_lazy as _
 from django.views.generic import (
     CreateView, DeleteView, ListView, UpdateView, DetailView)
 
 from sapl.layout import SaplFormLayout
+from django.utils.functional import cached_property
+
+
+NO_ENTRIES_MSG = _('Não existem registros')
 
 
 def from_to(start, end):
@@ -114,8 +118,10 @@ def build_crud(model, *layout):
     class CrudListView(BaseMixin, ListView):
         title = BaseMixin.verbose_name_plural
         paginate_by = 10
+        no_entries_msg = NO_ENTRIES_MSG
 
-        def get_fieldnames(self):
+        @cached_property
+        def field_names(self):
             '''The list of field names to display on table
 
             This base implementation returns the field names
@@ -124,13 +130,24 @@ def build_crud(model, *layout):
             rows = layout[0][1:]
             return [fieldname for row in rows for fieldname, __ in row]
 
+        def get_field_values(self, object_list):
+            return [[(get_field_display(obj, name)[1],
+                      obj.pk if i == 0 else None)
+                     for i, name in enumerate(self.field_names)]
+                    for obj in object_list
+                    ]
+
         def get_context_data(self, **kwargs):
-            context_data = super(CrudListView, self).get_context_data(**kwargs)
-            paginator = context_data['paginator']
-            current_page = context_data['page_obj']
-            context_data['custom_page_range'] = make_pagination(
-                current_page.number, paginator.num_pages)
-            return context_data
+            context = super(CrudListView, self).get_context_data(**kwargs)
+            paginator = context['paginator']
+            page_obj = context['page_obj']
+            context['page_range'] = make_pagination(
+                page_obj.number, paginator.num_pages)
+            object_list = context['object_list']
+            context['field_names'] = self.field_names
+            context['field_values'] = self.get_field_values(object_list)
+            context['NO_ENTRIES_MSG'] = NO_ENTRIES_MSG
+            return context
 
     class CrudCreateView(BaseMixin, FormMessagesMixin, CreateView):
         form_class = crud.model_form

sapl/test_crud.py

@@ -3,7 +3,9 @@ from django.core.urlresolvers import reverse
 from model_mommy import mommy
 
 from comissoes.models import Comissao, TipoComissao
-from .crud import get_field_display, build_crud, make_pagination, from_to
+from .crud import (get_field_display, build_crud, make_pagination, from_to,
+                   NO_ENTRIES_MSG)
+from comissoes.views import comissao_crud
 
 pytestmark = pytest.mark.django_db
 
@@ -24,7 +26,7 @@ pytestmark = pytest.mark.django_db
 def test_listview_get_fieldnames(layout, result):
     crud = build_crud(Comissao, *layout)
     view = crud.CrudListView()
-    assert view.get_fieldnames() == result
+    assert view.field_names == result
 
 
 __ = None  # for test readability
@@ -156,10 +158,13 @@ def assert_h1(res, title):
     assert res.html.find('h1').text == title
 
 
+NO_ENTRIES_MSG = str(NO_ENTRIES_MSG)  # "unlazy"
+
+
 def assert_on_list_page(res):
     assert_h1(res, 'Comissões')
     assert 'Adicionar Comissão' in res
-    assert res.html.find('table')
+    assert res.html.find('table') or NO_ENTRIES_MSG in res
     # XXX ... characterize better
 
 
@@ -177,6 +182,53 @@ def assert_on_detail_page(res, stub_name):
     assert 'Excluir Comissão' in res
 
 
+@pytest.mark.urls('sapl.teststubs.urls_for_list_test')
+@pytest.mark.parametrize("num_entries, page_size, ranges, page_list", [
+    (0, 6, [], []),
+    (5, 5, [], []),
+    (10, 5, [(0, 5), (5, 10)], ['«', '1', '2', '»']),
+    (9, 4, [(0, 4), (4, 8), (8, 9)], ['«', '1', '2', '3', '»']),
+])
+def test_flux_list_paginate_detail(
+        app, monkeypatch, num_entries, page_size, ranges, page_list):
+
+    entries_labels = []
+    for i in range(num_entries):
+        nome, sigla, tipo = 'nome %s' % i, 'sigla %s' % i, 'tipo %s' % i,
+        entries_labels.append([nome, sigla, tipo])
+        mommy.make(Comissao, nome=nome, sigla=sigla, tipo__nome=tipo)
+
+    from .teststubs.urls_for_list_test import crud
+    crud.CrudListView.paginate_by = page_size
+
+    res = app.get('/comissoes/')
+    assert_on_list_page(res)
+
+    table = res.html.find('table')
+    paginator = res.html.find('ul', {'class': 'pagination'})
+
+    if num_entries == 0:
+        assert NO_ENTRIES_MSG in res
+        assert not table
+        assert not paginator
+    else:
+        def rows():
+            header, *rows = table.findAll('tr')
+            assert header.text.strip().split() == ['nome', 'sigla', 'tipo']
+            return [[td.text.strip() for td in tr.findAll('td')]
+                    for tr in rows]
+
+        if page_list:
+            assert paginator
+            assert paginator.text.strip().split() == page_list
+
+        assert entries_labels[:page_size] == rows()
+
+        # TODO... go to the second page and back
+        # TODO... go to detail page
+
+
+
 @pytest.mark.parametrize("cancel, make_invalid_submit", [
     (a, b) for a in (True, False) for b in (True, False)])
 def test_flux_list_create_detail(app, cancel, make_invalid_submit):

sapl/teststubs/urls_for_list_test.py

@@ -0,0 +1,22 @@
+from django.conf.urls import include, url
+from sapl.crud import build_crud
+
+from comissoes.models import Comissao
+
+
+crud = build_crud(
+    Comissao,
+
+    ['Dados Básicos',
+     [('nome', 9), ('sigla', 3)],
+     [('tipo', 3)]
+     ],
+
+    ['Dados Complementares',
+     [('finalidade', 12)]
+     ],
+)
+
+urlpatterns = [
+    url(r'^comissoes/', include(crud.urls)),
+]

templates/crud/list.html

@@ -10,25 +10,35 @@
   </a></dd>
 </dl>
 
+{% if not field_values %}
+  <p>{{ NO_ENTRIES_MSG }}</p>
+{% else %}
   <table class="table table-hover">
     <thead>
       <tr>
-              <th>{% trans 'Id' %}</th>
-              <th>{% trans 'Nome' %}</th>
-              <th>{% trans 'Sigla' %}</th>
-              <th>{% trans 'Tipo' %}</th>
+        {% for name in field_names %}
+        <th>{{ name }}</th>
+        {% endfor %}
       </tr>
     </thead>
     <tbody>
-          {% for comissao in object_list %}
-              <td>{{ comissao.id }}</td>
-              <td>{{ comissao.nome }}</td>
-              <td>{{ comissao.sigla }}</td>
-              <td>{{ comissao.tipo }}</td>
+    {% for value_list in field_values %}
+    <tr>
+      {% for value, href in value_list %}
+      <td>
+        {% if href %}
+        <a href="{{ href }}">{{ value }}</a>
+        {% else %}
+          {{ value }}
+        {% endif %}
+      </td>
+      {% endfor %}
     </tr>
     {% endfor %}
   </tbody>
   </table>
+{% endif %}
+
 
 {% if is_paginated %}
 <div class="pagination-centered">
@@ -43,7 +53,7 @@
     <li class="arrow unavailable" aria-disabled="true"><a href="">&laquo;</a></li>
     {% endif %}
 
-      {% for page in custom_page_range %}
+    {% for page in page_range %}
     {% if page %}
     <li {% if page == page_obj.number %}class="current"{% endif %}>
       <a href="?page={{ page }}">{{ page }}</a>