本文整理汇总了Python中wtforms.validators.optional函数的典型用法代码示例。如果您正苦于以下问题:Python optional函数的具体用法?Python optional怎么用?Python optional使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了optional函数的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: formfield_from_modelfield
def formfield_from_modelfield(field):
field_type = field.__class__.__name__.lower()
opts = {
'validators': []
}
default = getattr(field, 'default', odis.EMPTY)
if field_type == 'relfield':
opts['queryset'] = field.model.obj.all()
if is_coll_field(field):
opts['validators'].append(validators.optional())
elif default != odis.EMPTY or getattr(field, 'nil', False):
opts['validators'].append(validators.optional())
else:
opts['validators'].append(validators.required())
if default != odis.EMPTY:
opts['default'] = default
if getattr(field, 'choices', False):
opts['choices'] = field.choices
opts['label'] = field.verbose_name or field.name
if 'choices' in opts:
form_field = fields.SelectField
#opts['coerce'] = field.to_python
else:
form_field = fields_table[field_type]
return form_field(**opts)
示例2: test_optional
def test_optional(self):
self.assertEqual(optional()(self.form, DummyField("foobar", raw_data=["foobar"])), None)
self.assertRaises(StopValidation, optional(), self.form, DummyField("", raw_data=[""]))
self.assertRaises(StopValidation, optional(), self.form, DummyField(" ", raw_data=[" "]))
self.assertEqual(optional().field_flags, ("optional",))
f = DummyField("", ["Invalid Integer Value"], raw_data=[""])
self.assertEqual(len(f.errors), 1)
self.assertRaises(StopValidation, optional(), self.form, f)
self.assertEqual(len(f.errors), 0)
示例3: test_optional
def test_optional(self):
self.assertEqual(optional()(self.form, DummyField('foobar', raw_data=['foobar'])), None)
self.assertRaises(StopValidation, optional(), self.form, DummyField('', raw_data=['']))
self.assertRaises(StopValidation, optional(), self.form, DummyField(' ', raw_data=[' ']))
self.assertEqual(optional().field_flags, ('optional', ))
f = DummyField('', ['Invalid Integer Value'], raw_data=[''])
self.assertEqual(len(f.errors), 1)
self.assertRaises(StopValidation, optional(), self.form, f)
self.assertEqual(len(f.errors), 0)
示例4: build_questionnaire
def build_questionnaire(form, data=None):
fields = {'groups': []}
fields['participant'] = StringField(
u'Participant',
filters=[partial(filter_participants, form)],
validators=[validators.required()])
for group in form.groups:
groupspec = (group.name, [])
for field in group.fields:
# if the field has options, create a list of choices
if field.options:
choices = [(v, k) for k, v in field.options.iteritems()]
if field.allows_multiple_values:
fields[field.name] = IntegerSplitterField(
field.name,
choices=choices,
description=field.description,
validators=[validators.optional()],
)
else:
fields[field.name] = SelectField(
field.name,
choices=choices,
coerce=int,
description=field.description,
validators=[validators.optional()],
widget=widgets.TextInput()
)
else:
if form.form_type == 'CHECKLIST':
fields[field.name] = IntegerField(
field.name,
description=field.description,
validators=[
validators.optional(),
validators.NumberRange(min=field.min_value,
max=field.max_value)]
)
else:
fields[field.name] = IntegerField(
field.name,
description=field.description,
validators=[validators.optional()]
)
fields['groups'].append(groupspec)
form_class = type('QuestionnaireForm', (BaseQuestionnaireForm,), fields)
return form_class(data)
示例5: load_filters
def load_filters(cls, filters):
'''Load Filter Fields
Init a filter form using filter settings
arguments:
filters: a dict list with information to form a filter
with format for each item:
0. id: unique english name for field
1. name: always same as the colums name to be filtered
2. type: using following types
- str: this type will only be used for search
- float: this type will only be filtered
with a min and max val
- date: this type will only be filtered with
an earliest date and a latest date
throw a INVALID_FILTER_FORMAT error when filters not obey this rule
'''
must_keys = ('id', 'name', 'type')
# check if filters' format is correct
for item in filters:
for mk in must_keys:
if mk not in item.keys():
raise AppError('INVALID_FILTER_FORMAT')
# init the filter
for item in filters:
if item['type'] == 'str':
setattr(cls, item['id'], TextField(item['name']))
if item['type'] == 'float':
setattr(cls,
'{}_min'.format(item['id']),
DecimalField('min value of {}'.format(item['name']),
[validators.optional()]))
setattr(cls,
'{}_max'.format(item['id']),
DecimalField('max value of {}'.format(item['name']),
[validators.optional()]))
if item['type'] == 'date':
setattr(cls,
'{}_earlier'.format(item['id']),
DateField('earlier {}'.format(item['name']),
[validators.optional()]))
setattr(cls,
'{}_later'.format(item['id']),
DateField('later {}'.format(item['name']),
[validators.optional()]))
示例6: field_factory
def field_factory(attr):
kwargs = defaultdict(list)
kwargs['id'] = attr.name
kwargs['label'] = attr.comment
if attr.in_key: kwargs['validators'].append(required())
if attr.nullable or attr.default is not None:
kwargs['validators'].append(optional())
if attr.type.startswith('int'):
return wtf.IntegerField(**kwargs)
elif attr.type == 'double' or attr.type == 'float':
return wtf.FloatField(**kwargs)
elif attr.type.startswith('varchar'):
ml = int(attr.type.split('(')[-1][:-1])
return wtf.StringField(**kwargs) # TODO: can I specify a max length here?
elif attr.type == 'date':
kwargs['validators'].append(date_validator)
return wtf.DateField(format='%Y-%m-%d', default=datetime.date.today(), **kwargs)
elif attr.type.startswith('enum'):
choices = [(e[1:-1],e[1:-1]) for e in attr.type[attr.type.find('(')+1:attr.type.rfind(')')].split(',')]
return wtf.SelectField(choices=choices, **kwargs)
elif attr.type.startswith('char'):
l = int(attr.type.split('(')[-1][:-1])
kwargs['validators'].append(len_validator_factory(l))
return wtf.StringField(**kwargs) # TODO: can I specify a max length here?
elif attr.type == 'timestamp':
return wtf.DateTimeField(format='%Y-%m-%d %H:%M', default=datetime.datetime.today(), **kwargs)
else:
raise NotImplementedError('FieldFactory does not know what to do with %s' % (attr.type))
示例7: scaffold_form
def scaffold_form(self):
class NewForm(Form):
pass
if self.create_form_class is None:
return NewForm
for field in self.create_form_class.DESCRIPTOR.fields:
if self.form_excluded_columns and field.name in self.form_excluded_columns:
continue
field_type = field.type
if field_type == 11: # Todo: handle "message" type, which is a nested object
continue
FormClass = wtforms_type_map[field_type]
description = self.swagger['definitions'][
'lnrpc' + self.create_form_class.__name__]['properties'][
field.name]
description = description.get('title') or description.get(
'description')
if description:
description = description.replace('/ ', '')
form_field = FormClass(field.name,
default=field.default_value or None,
description=description,
validators=[validators.optional()]
)
setattr(NewForm, field.name, form_field)
return NewForm
示例8: convert
def convert(self, column):
kwargs = {
'label': column.info.get('label', column.name),
'description': column.description,
'validators': [],
'default': column.default and column.default.arg
}
if column.info.get('optional', False):
kwargs['validators'].append(validators.optional())
elif not column.nullable:
kwargs['validators'].append(validators.required())
if hasattr(column.type, 'length') and column.type.length is not None:
kwargs['validators'].append(validators.length(max=column.type.length))
fname = type(column.type).__name__
if len(column.foreign_keys) > 0:
return self.conv_ForeignKey(kwargs, column)
if fname in self.SIMPLE_CONVERSIONS:
return self.SIMPLE_CONVERSIONS[fname](**kwargs)
else:
mod = getattr(self, 'conv_%s' % fname, None)
if mod is not None:
return mod(kwargs, column)
示例9: __init__
def __init__(self, **kwargs):
defaults = dict(
icon='calendar',
validators=[optional()],
widget_classes="form-control"
)
defaults.update(kwargs)
super(Date, self).__init__(**defaults)
示例10: __init__
def __init__(self, **kwargs):
warnings.warn("Field has been deprecated", PendingDeprecationWarning)
defaults = dict(icon='flag',
export_key='language',
validators=[optional()],
widget_classes="form-control")
defaults.update(kwargs)
super(LanguageField, self).__init__(**defaults)
示例11: client_global_edit
def client_global_edit(client_id, dev_id):
with app.db.session_scope():
dev = app.db.get_device(dev_id)
known_items = {}
class F(Form):
pass
for item in dev["parameters"]:
item = dev["parameters"][item]
default = item["value"]
arguments = [Required()]
# keep track of the known fields
known_items[item["key"]] = {u"id": item["id"], u"type": item["type"]}
# build the field
if item["type"] == "boolean":
if default == 'y' or default == 1 or default == True: # in db value stored in lowcase
default = True
else:
default = False
field = BooleanField(item["key"], [validators.optional()], default=default) # set to optional field due to WTForm BooleanField return no data for false value (HTML checkbox)
elif item["type"] == "integer":
field = IntegerField(item["key"], arguments, default=default)
elif item["type"] == "float":
field = DateTimeField(item["key"], arguments, default=default)
else:
# time, email, ipv4, ipv6, url
field = TextField(item["key"], arguments, default=default)
# add the field
setattr(F, "{0}-{1}".format(item["id"], item["key"]), field)
form = F()
if request.method == 'POST' and form.validate():
for key, item in known_items.iteritems():
val = getattr(form, "{0}-{1}".format(item["id"], key)).data
if item["type"] == "boolean":
if val == False:
val = 'n' # in db value stored in lowcase
else:
val = 'y' # in db value stored in lowcase
app.db.udpate_device_param(item["id"], value=val)
return redirect("/client/{0}/dmg_devices/known".format(client_id))
pass
else:
return render_template('client_global.html',
form = form,
clientid = client_id,
client_detail = get_client_detail(client_id),
mactive="clients",
active = 'devices',
device = dev)
示例12: test_optional
def test_optional(self):
self.assertEqual(optional()(self.form, DummyField('foobar', raw_data=['foobar'])), None)
self.assertRaises(StopValidation, optional(), self.form, DummyField('', raw_data=['']))
self.assertEqual(optional().field_flags, ('optional', ))
f = DummyField('', ['Invalid Integer Value'], raw_data=[''])
self.assertEqual(len(f.errors), 1)
self.assertRaises(StopValidation, optional(), self.form, f)
self.assertEqual(len(f.errors), 0)
# Test for whitespace behavior.
whitespace_field = DummyField(' ', raw_data=[' '])
self.assertRaises(StopValidation, optional(), self.form, whitespace_field)
self.assertEqual(optional(strip_whitespace=False)(self.form, whitespace_field), None)
示例13: test_optional
def test_optional(self):
self.assertEqual(optional()(self.form, DummyField("foobar", raw_data=["foobar"])), None)
self.assertRaises(StopValidation, optional(), self.form, DummyField("", raw_data=[""]))
self.assertEqual(optional().field_flags, ("optional",))
f = DummyField("", ["Invalid Integer Value"], raw_data=[""])
self.assertEqual(len(f.errors), 1)
self.assertRaises(StopValidation, optional(), self.form, f)
self.assertEqual(len(f.errors), 0)
# Test for whitespace behavior.
whitespace_field = DummyField(" ", raw_data=[" "])
self.assertRaises(StopValidation, optional(), self.form, whitespace_field)
self.assertEqual(optional(strip_whitespace=False)(self.form, whitespace_field), None)
示例14: convert
def convert(self, field):
kwargs = {
'label': field.verbose_name,
'description': field.help_text,
'validators': [],
'default': field.default,
}
if field.blank:
kwargs['validators'].append(validators.optional())
if field.max_length is not None and field.max_length > 0:
kwargs['validators'].append(validators.length(max=field.max_length))
fname = type(field).__name__
if field.choices:
kwargs['choices'] = field.choices
return f.SelectField(**kwargs)
elif fname in self.SIMPLE_CONVERSIONS:
return self.SIMPLE_CONVERSIONS[fname](**kwargs)
else:
m = getattr(self, 'conv_%s' % fname, None)
if m is not None:
return m(kwargs, field)
示例15: __init__
#.........这里部分代码省略.........
('.3%', '".3%" | 1234543.210%'),
('.4r', '".4r" | 12350'),
('.3f', '".3f" | 12345.432'),
('+,', '"+," | +12,345.4321'),
('$,.2f', '"$,.2f" | $12,345.43'),
],
"description": _("D3 format syntax for numbers "
"https: //github.com/mbostock/\n"
"d3/wiki/Formatting")
}),
'row_limit': (FreeFormSelectField, {
"label": _('Row limit'),
"default": config.get("ROW_LIMIT"),
"choices": self.choicify(
[10, 50, 100, 250, 500, 1000, 5000, 10000, 50000])
}),
'limit': (FreeFormSelectField, {
"label": _('Series limit'),
"choices": self.choicify(self.series_limits),
"default": 50,
"description": _(
"Limits the number of time series that get displayed")
}),
'rolling_type': (SelectField, {
"label": _("Rolling"),
"default": 'None',
"choices": [(s, s) for s in ['None', 'mean', 'sum', 'std', 'cumsum']],
"description": _(
"Defines a rolling window function to apply, works along "
"with the [Periods] text box")
}),
'rolling_periods': (IntegerField, {
"label": _("Periods"),
"validators": [validators.optional()],
"description": _(
"Defines the size of the rolling window function, "
"relative to the time granularity selected")
}),
'series': (SelectField, {
"label": _("Series"),
"choices": group_by_choices,
"default": default_groupby,
"description": _(
"Defines the grouping of entities. "
"Each serie is shown as a specific color on the chart and "
"has a legend toggle")
}),
'entity': (SelectField, {
"label": _("Entity"),
"choices": group_by_choices,
"default": default_groupby,
"description": _("This define the element to be plotted on the chart")
}),
'x': (SelectField, {
"label": _("X Axis"),
"choices": datasource.metrics_combo,
"default": default_metric,
"description": _("Metric assigned to the [X] axis")
}),
'y': (SelectField, {
"label": _("Y Axis"),
"choices": datasource.metrics_combo,
"default": default_metric,
"description": _("Metric assigned to the [Y] axis")
}),
'size': (SelectField, {