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Validators for wtforms package

Project description

wtforms-validators

Additional validators for wtforms used in web applications frequently.

Installation

pip install wtforms-validators

Validators

Examples :

from wtforms_validators import ActiveUrl, Alpha
...

class SignupForm(Form):
    login_id = StringField('login Id', [DataRequired(), Alpha()])
    url = StringField('profile url', [DataRequired(), ActiveUrl()])

Accepted:

Validates if the field is yes, on, 1, true or True. Can be used for validating terms of service, opt-ins etc.,

Parameters:

  • message - (optional) - Error message to raise in case of a validation error.

ActiveUrl:

Validates if the URL is active by checking A or AAAA DNS records.

Parameters:

  • message - (optional) - Error message to raise in case of a validation error.

Alpha:

Validates the field to include alphabetic characters only.

Parameters:

  • message - (optional) - Error message to raise in case of a validation error.

AlphaDash:

Validates the field to only include alphabets and dash(-).

Parameters:

  • message - (optional) - Error message to raise in case of a validation error.

AlphaSpace:

Validates the field to only include alphabets and spaces.

Note: This validator does not strip the field's value, so input containing only spaces will still be valid. You will either have to register a filter to strip input data or add another validator to check if the field cannot contain only spaces.

Parameters:

  • message - (optional) - Error message to raise in case of a validation error.

AlphaNumeric:

Validates the field to only include alphabets and numbers.

Parameters:

  • message - (optional) - Error message to raise in case of a validation error.

NotEqualTo:

Checks the field under validation is not equal to another field.

Parameters:

  • fieldname – The name of the other field.
  • message - (optional) - Error message to raise in case of a validation error.

Integer

Validates the field to only include numbers.

Parameters:

  • message - (optional) - Error message to raise in case of a validation error.

IsJson

The field under validation must be a valid JSON string.

Parameters:

  • message - (optional) - Error message to raise in case of a validation error.

DisposableEmail

The email address should not belong to a disposable email service provider.

Parameters:

  • message - (optional) - Error message to raise in case of a validation error.

Project details


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