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package validation_test |
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import ( |
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"fmt" |
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"github.com/muonsoft/validation" |
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"github.com/muonsoft/validation/it" |
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"github.com/muonsoft/validation/validator" |
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) |
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type Product struct { |
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Name string |
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Tags []string |
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Components []Component |
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} |
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func (p Product) Validate(validator *validation.Validator) error { |
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return validator.Validate( |
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validation.StringProperty("name", &p.Name, it.IsNotBlank()), |
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validation.IterableProperty("tags", p.Tags, it.HasMinCount(1)), |
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// this also runs validation on each of the components |
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validation.IterableProperty("components", p.Components, it.HasMinCount(1)), |
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) |
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} |
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type Component struct { |
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ID int |
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Name string |
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Tags []string |
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} |
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func (c Component) Validate(validator *validation.Validator) error { |
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return validator.Validate( |
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validation.StringProperty("name", &c.Name, it.IsNotBlank()), |
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validation.CountableProperty("tags", len(c.Tags), it.HasMinCount(1)), |
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) |
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} |
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func ExampleValidator_ValidateValidatable_validatableStruct() { |
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p := Product{ |
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Name: "", |
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Components: []Component{ |
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{ |
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ID: 1, |
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Name: "", |
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}, |
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}, |
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} |
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err := validator.ValidateValidatable(p) |
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violations := err.(validation.ViolationList) |
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for _, violation := range violations { |
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fmt.Println(violation.Error()) |
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} |
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// Output: |
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// violation at 'name': This value should not be blank. |
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// violation at 'tags': This collection should contain 1 element or more. |
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// violation at 'components[0].name': This value should not be blank. |
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// violation at 'components[0].tags': This collection should contain 1 element or more. |
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} |
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muonsoft /
validation
