def test_07(self):
""" Test modifying validators.
"""
def name_validator(sheet, row, replaced_row=None):
""" Splits name into first name and last name.
"""
first_name, last_name = unicode(row[u'Name']).split()
row[u'First name'] = first_name.capitalize()
row[u'Last name'] = last_name.capitalize()
del row[u'Name']
return row
sheet = Sheet(captions=[u'ID', u'First name', u'Last name'])
sheet.add_validator(name_validator, 'insert', 'replace')
self.assertRaises(ValueError, sheet.append, [u'1', u'Foo Bar'])
self.assertRaises(
ValueError, sheet.append, {u'ID': 1, u'Name': u'Foo'})
self.assertEqual(len(sheet), 0)
sheet.append({u'ID': 1, u'Name': u' fOo bAR'})
self.assertEqual(len(sheet), 1)
self.assertEqual(list(sheet[0]), [1, u'Foo', u'Bar'])
sheet[0] = {u'ID': u'0', u'Name': u'bar foo'}
self.assertEqual(len(sheet), 1)
self.assertEqual(list(sheet[0]), [u'0', u'Bar', u'Foo'])
validator = UniqueNameValidator()
sheet.add_insert_validator(validator.insert)
sheet.add_delete_validator(validator.delete)
sheet.add_replace_validator(validator.replace)
self.assertEqual(
sheet.insert_validators, [name_validator, validator.insert])
self.assertEqual(
sheet.delete_validators, [validator.delete])
self.assertEqual(
sheet.replace_validators,
[name_validator, validator.replace])
sheet.append({u'Name': u'Fooer Barer'})
self.assertEqual(
list(u', '.join(row) for row in sheet),
[u'0, Bar, Foo', u'1, Fooer, Barer'])
self.assertRaises(
ValidationError, sheet.append, {u'Name': u'Fooer Barer'})
del sheet[1]
sheet.append({u'Name': u'Fooer Barer'})
self.assertEqual(
list(u', '.join(row) for row in sheet),
[u'0, Bar, Foo', u'2, Fooer, Barer'])
sheet[1] = {u'Name': u'fooer barer', u'ID': u'1'}
self.assertEqual(
list(u', '.join(row) for row in sheet),
[u'0, Bar, Foo', u'1, Fooer, Barer'])
def test_06(self):
""" Test non-modifying validators.
"""
validator = UniqueIntegerValidator(u'ID')
sheet = Sheet(captions=[u'ID'])
sheet.add_insert_validator(validator.insert)
sheet.add_delete_validator(validator.delete)
sheet.add_replace_validator(validator.replace)
self.assertEqual(sheet.insert_validators, [validator.insert])
self.assertEqual(sheet.delete_validators, [validator.delete])
self.assertEqual(sheet.replace_validators, [validator.replace])
sheet.add_validator(validate_nothing)
self.assertEqual(sheet.insert_validators, [validator.insert])
self.assertEqual(sheet.delete_validators, [validator.delete])
self.assertEqual(sheet.replace_validators, [validator.replace])
sheet.add_validator(validate_nothing, 'insert', 'delete', 'replace')
self.assertEqual(sheet.insert_validators,
[validator.insert, validate_nothing])
self.assertEqual(sheet.delete_validators,
[validator.delete, validate_nothing])
self.assertEqual(sheet.replace_validators,
[validator.replace, validate_nothing])
self.assertRaises(
ValueError, sheet.add_validator, validate_nothing, 'foo')
self.assertRaises(ValidationError, sheet.append, [u'baba'])
self.assertEqual(len(sheet), 0)
sheet.append([u'2'])
sheet.append([u'3'])
self.assertEqual(sorted(validator.values), [2, 3])
self.assertEqual(sheet[1][u'ID'], 3)
self.assertEqual(len(sheet), 2)
self.assertRaises(ValidationError, sheet.append, [3])
self.assertEqual(len(sheet), 2)
del sheet[1]
self.assertEqual(validator.values, set([2]))
sheet.append([u'3'])
sheet[1] = {u'ID': 4}
sheet.append([u'3'])
def dump_query_to_sheet(
queryset, sheet=None, fields=None, exclude=None,
join_rules=None,
merge_rules=None):
""" Dumps query to sheet.
If ``sheet`` is None, then creates one.
:param fields: what fields from object to include, if None then all.
:param exclude:
what fields from object to exclude, if None then none.
:param join_rules: what relationships to join_rules by field.
:param merge_rules:
what relationships to merge_rules into sheet. (``get`` method
must return an item or raise DoesNotExist error).
:returns: sheet object.
"""
if sheet is None:
sheet = Sheet()
if len(queryset) < 1:
return sheet
obj = queryset[0]
if fields is None:
fields = collect_fields(obj, exclude)
def modifier(sheet, row):
""" Changes fields to Unicode strings.
"""
new_row = collections.defaultdict(unicode)
for field_name, (obj, field) in row.items():
if obj is not None:
display_attr = 'get_{0}_display'.format(field.name)
if hasattr(obj, display_attr):
new_row[field_name] = getattr(obj, display_attr)()
else:
value = getattr(obj, field.name)
if value is None:
new_row[field_name] = u''
else:
new_row[field_name] = value
else:
new_row[field_name] = field
return new_row
sheet.add_insert_validator(modifier)
sheet.add_columns([field.verbose_name for field in fields])
mergable = {}
joinable = {}
merge_rules = merge_rules or ()
join_rules = join_rules or ()
for related_obj in obj._meta.get_all_related_objects():
if related_obj.name in merge_rules:
model = related_obj.model
merge_fields = collect_fields(model, ('id',))
mergable[related_obj.name] = merge_fields, model
sheet.add_columns([
field.verbose_name
for field in merge_fields
])
for field_name, model_name, kwargs in join_rules:
if model_name == related_obj.name:
model = related_obj.model
field = model._meta.get_field(field_name)
joinable[related_obj.name.split(':')[1]] = field, kwargs
sheet.add_column(field.verbose_name)
break
for obj in queryset:
row = dict([(field.verbose_name, (obj, field)) for field in fields])
for full_name, (merge_fields, model) in mergable.items():
name = full_name.split(':')[1]
try:
related_obj = getattr(obj, name)
for field in merge_fields:
row[field.verbose_name] = related_obj, field
except model.DoesNotExist:
pass
for name, (field, (filter_kwargs, exclude_kwargs)) in (
joinable.items()):
query = getattr(obj, '{0}_set'.format(name)).all()
row[field.verbose_name] = None, join(
query.filter(**filter_kwargs).exclude(**exclude_kwargs),
field.name)
sheet.append_dict(row)
return sheet
