ValueComparisonRule

Description

The ValueComparisonRule class allows you to create a validation rule that compares a value to a constant.

Constructors

NewValueComparisonRule

Creates a new validation rule and sets its values.

NewValueComparisonRule(operation string, value any) *ValueComparisonRule

• operation: string - comparison operation: "==" ("=", “EQ”), “!= " ("<>”, “NE”); “<"/">” (“LT”/“GT”), “<="/">=” (“LE”/“GE”); “LIKE”.
• value: any - constant value to compare to

Methods

Validate

Validates a given value against this rule.

(c *ValueComparisonRule) Validate(path string, schema ISchema, value any) []*ValidationResult

• path: string - dot notation path to the value.
• schema: ISchema - schema this rule is called from
• value: any - value to be validated.
• results: []*ValidationResult - list with validation results to add new results.

Examples

var schema = NewSchema()
    .WithRule(NewValueComparisonRule("EQ", 1));
  
schema.Validate(1);          // Result: no errors
schema.Validate(2);          // Result: 2 is not equal to 1

See also

• IValidationRule