validators module¶
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class
campos.validators.Validator(message='Invalid data')[source]¶ Bases:
objectBase class for field validation.
Subclasses must define a
__call__(self, field)method which validates the current value of field and raises a ValueError error if it is not valid.Parameters: message ( str) – message to show when an invalid value is found.
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class
campos.validators.DataRequired(message='Required')[source]¶ Bases:
campos.validators.ValidatorChecks if a field is not empty.
Only basic validations are done here, the following values are considered invalid:
- None
- Empty strings or containing only blank spaces.
- Numbers when
math.isfinite()is False. - Empty collections.
- Time objects if its evaluation in a boolean context is False
Parameters: message ( str) – message to show when no data is found
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class
campos.validators.NumberRange(min=0, max=100, message=None)[source]¶ Bases:
campos.validators.ValidatorNumber range validation.
Parameters: - min (
intorfloat) – minimum valid value, defaults to 0 - max (
intorfloat) – maximum valid value, defaults to 100 - message (
str) – message to show ifnot min <= value <= max
- min (
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class
campos.validators.StringLength(min=0, max=100, message=None)[source]¶ Bases:
campos.validators.ValidatorString length validation.
Parameters: - min (
int) – minimum valid length, defaults to 0 - max (
int) – maximum valid length, defaults to 100 - message (
str) – message to show ifnot min <= len(value) <= max
- min (
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class
campos.validators.RegExp(exp, flags=0, message="Value doesn't match pattern")[source]¶ Bases:
campos.validators.ValidatorValidate text against a regular expression.
Parameters: - exp (
stror compiled re) – string or compiled regular expression - flags (
int) – flags to pass tore.compile()if it’s necessary - message (
str) – message to show if value doesn’t fully match the regular expression
- exp (
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class
campos.validators.DateRange(min=datetime.date(2016, 12, 7), max=datetime.date(9999, 12, 31), message=None)[source]¶ Bases:
campos.validators.ValidatorRange validation for
datetime.dateobjects.Parameters: - min (
datetime.date) – minimum valid date, defaults to the current date - max (
datetime.date) – maximum valid date, defaults to date.max - message (
str) – message to show ifnot min <= value <= max
- min (
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class
campos.validators.TimeRange(min=datetime.time(0, 0), max=datetime.time(23, 59, 59, 999999), message=None)[source]¶ Bases:
campos.validators.ValidatorRange validation for
datetime.timeobjects.Parameters: - min (
datetime.time) – minimum valid time, defaults todatetime.time.min - max – maximum valid time, defaults to
datetime.time.max - message (
str) – message to show ifnot min <= value <= max
- min (
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class
campos.validators.DatetimeRange(min=datetime.datetime(1, 1, 1, 0, 0), max=datetime.datetime(9999, 12, 31, 23, 59, 59, 999999), message=None)[source]¶ Bases:
campos.validators.ValidatorRange validation for
datetime.datetimeobjects.Parameters: - min (
datetime.datetime) – minimum valid datetime, defaults todatetime.datetime.min - max – maximum valid datetime, defaults to
datetime.datetime.max - message (
str) – message to show ifnot min <= value <= max
- min (