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from itertools import count
from django.db import models
from django.test import SimpleTestCase
import django_tables2 as tables
class RowsTest(SimpleTestCase):
def test_bound_rows(self):
class SimpleTable(tables.Table):
name = tables.Column()
data = [{"name": "Bradley"}, {"name": "Chris"}, {"name": "Davina"}]
table = SimpleTable(data)
# iteration
records = []
for row in table.rows:
records.append(row.record)
self.assertEqual(records, data)
def test_bound_row(self):
class SimpleTable(tables.Table):
name = tables.Column()
occupation = tables.Column()
age = tables.Column()
record = {"name": "Bradley", "age": 20, "occupation": "programmer"}
table = SimpleTable([record])
row = table.rows[0]
# integer indexing into a row
self.assertEqual(row.get_cell(0), record["name"])
self.assertEqual(row.get_cell(1), record["occupation"])
self.assertEqual(row.get_cell(2), record["age"])
with self.assertRaises(IndexError):
row.get_cell(3)
# column name indexing into a row
self.assertEqual(row.get_cell("name"), record["name"])
self.assertEqual(row.get_cell("occupation"), record["occupation"])
self.assertEqual(row.get_cell("age"), record["age"])
with self.assertRaises(KeyError):
row.get_cell("gamma")
# row should support contains check
self.assertIn("name", row)
self.assertIn("occupation", row)
self.assertNotIn("gamma", row)
def test_boud_row_cells(self):
class SimpleTable(tables.Table):
name = tables.Column()
occupation = tables.Column()
age = tables.Column()
record = {"name": "Bradley", "age": 20, "occupation": "programmer"}
table = SimpleTable([record])
row = table.rows[0]
self.assertEqual(row.cells.name, record["name"])
self.assertEqual(row.cells.age, record["age"])
self.assertEqual(row.cells.name, row.get_cell("name"))
self.assertEqual(row.cells[0], record["name"])
self.assertEqual(row.cells[0], row.get_cell(0))
with self.assertRaises(IndexError):
row.cells[3]
with self.assertRaises(KeyError):
row.cells["gamma"]
def test_row_attrs(self):
"""
If a callable returns an empty string, do not add a space to the CSS class
attribute. (#416)
"""
counter = count()
class Table(tables.Table):
name = tables.Column()
class Meta:
row_attrs = {"class": lambda: "" if next(counter) % 2 == 0 else "bla"}
table = Table([{"name": "Brian"}, {"name": "Thomas"}, {"name": "John"}])
self.assertEqual(table.rows[0].attrs["class"], "even")
self.assertEqual(table.rows[1].attrs["class"], "bla odd")
self.assertEqual(table.rows[1].attrs["class"], "even")
def test_get_cell_display(self):
class A(models.Model):
foo = models.CharField(max_length=1, choices=(("a", "valA"), ("b", "valB")))
class Meta:
app_label = "tests"
class B(models.Model):
a = models.ForeignKey(A, on_delete=models.CASCADE)
class Meta:
app_label = "tests"
class C(models.Model):
b = models.ForeignKey(B, on_delete=models.CASCADE)
class Meta:
app_label = "tests"
class Tab(tables.Table):
a = tables.Column(accessor="b__a__foo")
class Meta:
model = C
a = A(foo="a")
b = B(a=a)
c = C(b=b)
tab = Tab([c])
row = tab.rows[0]
self.assertEqual(row.get_cell("a"), "valA")
def test_even_odd_css_class(self):
"""
Test for BoundRow.get_even_odd_css_class() method
"""
class SimpleTable(tables.Table):
foo = tables.Column()
def get_top_pinned_data(self):
return [{"foo": "top-pinned"}]
def get_bottom_pinned_data(self):
return [{"foo": "bottom-pinned"}]
data = [{"foo", "bar"}, {"foo", "bas"}, {"foo", "baz"}]
simple_table = SimpleTable(data)
count = 0
prev = None
for row in simple_table.rows:
if prev:
self.assertNotEqual(row.get_even_odd_css_class(), prev.get_even_odd_css_class())
prev = row
count += 1
# count should be 5 because:
# - First row is a top pinned row.
# - Three defaults rows with data.
# - Last row is a bottom pinned row.
self.assertEqual(count, 5)
# Important!
# Length of data is five because pinned rows are added to data list.
# If pinned rows are added only in the iteration on BoundRows,
# then nothing will display if there are *only* pinned rows
self.assertEqual(len(simple_table.rows), 5)
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