Validators

float_validator(value, context)

Checks if the value can be parsed as a float and returns it if it can, otherwise raises Invalid. Rejects NaN and inf.

Parameters:

Name	Type	Description	Default
value		the value	required
context		the context	required

Returns:

Type	Description
float	a float

Source code in ckanext/versioned_datastore/logic/validators.py

def float_validator(value, context) -> float:
    """
    Checks if the value can be parsed as a float and returns it if it can, otherwise
    raises Invalid. Rejects NaN and inf.

    :param value: the value
    :param context: the context
    :returns: a float
    """
    try:
        value = float(value)
        if isfinite(value):
            return value
    except (ValueError, TypeError):
        pass
    raise toolkit.Invalid('Invalid float value')

url_safe(value, context)

Checks if the value is safe to be included in a URL as a slug.

Parameters:

Name	Type	Description	Default
value		the value to check	required
context		the context in which to check	required

Source code in ckanext/versioned_datastore/logic/validators.py

def url_safe(value, context):
    """
    Checks if the value is safe to be included in a URL as a slug.

    :param value: the value to check
    :param context: the context in which to check
    """
    if not re.match('^[A-Za-z0-9-_]+$', value):
        raise toolkit.Invalid(
            'Only a-z, 0-9, hyphens (-) and underscores (_) are valid characters'
        )
    else:
        return value