class Athena::Validator::Constraints::NotNil

• Athena::Validator::Constraints::NotNil
• Athena::Validator::Constraint
• Reference
• Object

Overview

Validates that a value is not nil.

NOTE Due to Crystal's static typing, when validating objects the property's type must be nilable, otherwise nil is inherently not allowed due to the compiler's type checking.

Configuration

Optional Arguments

message

Type: String Default: This value should not be null.

The message that will be shown if the value is nil.

Placeholders

The following placeholders can be used in this message:

• {{ value }} - The current (invalid) value.

groups

Type: Array(String) | String | Nil Default: nil

The [validation groups][Athena::Validator::Constraint--validation-groups] this constraint belongs to. AVD::Constraint::DEFAULT_GROUP is assumed if nil.

payload

Type: Hash(String, String)? Default: nil

Any arbitrary domain-specific data that should be stored with this constraint. The [payload][Athena::Validator::Constraint--payload] is not used by Athena::Validator, but its processing is completely up to you.

Defined in:

Constant Summary

IS_NIL_ERROR = "c7e77b14-744e-44c0-aa7e-391c69cc335c"

Constructors

• .new(message : String = "This value should not be null.", groups : Array(String) | String | Nil = nil, payload : Hash(String, String) | Nil = nil)

Instance Method Summary

• #validated_by : AVD::ConstraintValidator.class

  Returns the AVD::ConstraintValidator.class that should handle validating self.

Constructor Detail

Instance Method Detail