add-property-type

name	add-property-type
description	Add a complete Yontrack property type — Kotlin PropertyType class, GraphQL mutation provider, and all required frontend UI components (Icon, Display, Form, FormPrepare). Use when asked to create a new property type.
user-invocable	true

/add-property-type — Add a Yontrack Property Type

Arguments passed: $ARGUMENTS

Parse $ARGUMENTS for the property name (PascalCase, e.g. MyFeature). If not provided, ask the user for:

1. Property name (PascalCase)
2. Which entity types it applies to (Project, Branch, Build, PromotionLevel, ValidationStamp, PromotionRun, ValidationRun)
3. The data fields it holds
4. Whether it needs a GraphQL mutation

---

Step 1 — Define the data class

In the target extension package, create the data class:

data class {Name}Property(
    val field1: String,
    // ...
)

---

Step 2 — Implement the PropertyType

Create {Name}PropertyType.kt:

@Component
class {Name}PropertyType(
    extensionFeature: {Extension}Feature,
) : AbstractPropertyType<{Name}Property>(extensionFeature) {

    override val name: String = "{Human name}"
    override val description: String = "{Description shown in docs}"
    override val supportedEntityTypes: Set<ProjectEntityType> =
        EnumSet.of(ProjectEntityType.{TYPE})

    override fun canEdit(entity: ProjectEntity, securityService: SecurityService): Boolean =
        securityService.isProjectFunctionGranted(entity, ProjectConfig::class.java)

    override fun canView(entity: ProjectEntity, securityService: SecurityService): Boolean = true

    override fun fromClient(node: JsonNode): {Name}Property = node.parse()
    override fun fromStorage(node: JsonNode): {Name}Property = node.parse()
    override fun replaceValue(value: {Name}Property, replacementFunction: (String) -> String) = value
    override fun createConfigJsonType(jsonTypeBuilder: JsonTypeBuilder): JsonType =
        jsonTypeBuilder.toType({Name}Property::class)
}

Important: Never rename this class after it is deployed — its fully qualified class name is its persistent storage ID.

---

Step 3 — Add a GraphQL mutation provider (if needed)

Create {Name}PropertyMutationProvider.kt:

@Component
class {Name}PropertyMutationProvider : PropertyMutationProvider<{Name}Property> {
    override val propertyType: KClass<out PropertyType<{Name}Property>> = {Name}PropertyType::class
    override val mutationNameFragment: String = "{Name}"
    override val inputFields: List<GraphQLInputObjectField> = listOf(
        stringInputField({Name}Property::field1),
    )
    override fun readInput(entity: ProjectEntity, input: MutationInput) =
        {Name}Property(field1 = input.getRequiredString({Name}Property::field1))
}

This generates set{Name}Property and delete{Name}Property mutations automatically.

---

Step 4 — Create frontend UI components

Create the directory:

ontrack-web-core/components/framework/properties/
  net.nemerosa.ontrack.extension.{module}.{Name}PropertyType/

Icon.js (required)

An icon component representing the property visually.

Display.js (required)

Receives {property} prop. Renders the property value in read-only mode.

Form.js (required)

Receives {prefix, property, entity, form} props. Renders the Ant Design Form.Item fields for editing.

FormPrepare.js (optional)

Transforms form values before they are sent in the GraphQL mutation. Only needed when the form shape differs from the mutation input shape.

---

Step 5 — Final checklist

• Data class defined
• {Name}PropertyType.kt created with correct supportedEntityTypes and canEdit
• {Name}PropertyMutationProvider.kt created (if mutations needed)
• Frontend Icon.js created
• Frontend Display.js created
• Frontend Form.js created
• Frontend FormPrepare.js created (if needed)
• Unit test for the property type