abstract class Kemal::Form::Field

• Kemal::Form::Field
• Reference
• Object

Overview

Super class of all form fields.

Custom form fields should inherit from Kemal::Form::Field.

Direct Known Subclasses

• Kemal::Form::CheckboxField
• Kemal::Form::EmailField
• Kemal::Form::HiddenField
• Kemal::Form::NumberField
• Kemal::Form::PasswordField
• Kemal::Form::RadioField
• Kemal::Form::SelectField
• Kemal::Form::TextAreaField
• Kemal::Form::TextField

Defined in:

Constructors

• .new(id : String, name : String, value : String, required : Bool, label : Nil | Kemal::Form::Label = nil, attrs : Hash(String, String) = {} of String => String, validators : Array(Kemal::FormValidator::Validator) = [] of Kemal::FormValidator::Validator)

  Initializes a new form field with the given id, name, attrs, value, required, label and validators.

Instance Method Summary

• #add_error(message : String)

  Adds error to the field.

• #attrs : Hash(String, String)

  Returns the additional attributes added to the field.

• #errors : Array(String)

  Returns the field errors added by the field validators.

• #id : String

  Returns the value of the field's id attribute.

• #label : Form::Label | Nil

  Returns the field's label.

• #name : String

  Returns the value of the field's name attribute.

• #required : Bool

  Returns whether the field's required attribute should be set.

• #validate : Bool

  Validates the field.

• #validators : Array(Kemal::FormValidator::Validator)

  Returns the field's validators.

• #value : String

  Returns the value of the field.

• #value=(value : String)

  Returns the value of the field.

Constructor Detail

Instance Method Detail

post "/login" do |env|
  form = SignUpForm.new env
  form.valid?
    if username_already_exist
      form.username.add_error "Username already exist"
      ...
    end
    ...
  end
  ...
end