Class DeleteBehaviourTrait

Delete Behaviour Trait is prevents entities from being removed if there are existing connections.

NOTE: Not to be confused with Behaviours.

Usage:

traits:
  - type: delete_behaviour
    # At least one of in_edges or out_edges is required.
    in_edges:
      - hasThisEntity
    out_edges:
      - hasThatEntity
      - edge: hasThatEntity
        vertices:
          - Manual
          - ManualPage
    action: forbid # Optional; only forbid is supported at the moment.

Hierarchy

Trait<DeleteBehaviourTraitConfig>
- DeleteBehaviourTrait

Index

Constructors

constructor

new DeleteBehaviourTrait(): DeleteBehaviourTrait
Returns DeleteBehaviourTrait

Inherited from Trait.constructor

Properties

`Protected` `Optional` _config

_config?: DeleteBehaviourTraitConfig

Trait instance configuration.

`Protected` _global

_global: boolean = false

Whether this is a global (not bound to any specific schema item) trait instance.

`Protected` `Optional` _type

_type?: "delete_behaviour"

Trait type.

Methods

hookIntoSchema

hookIntoSchema(schemaItem: SchemaItem<SchemaItemType>): void
Attaches Trait callbacks to schema item hooks.
Parameters
- schemaItem: SchemaItem<SchemaItemType>
Returns void
Overrides Trait.hookIntoSchema
- Defined in src/traits/DeleteBehaviourTrait.ts:197

hookIntoSchemaManager

hookIntoSchemaManager(): void
Attaches Trait callbacks to schema manager hooks.

Returns void
Inherited from Trait.hookIntoSchemaManager
- Defined in src/traits/Trait.ts:225

makeGlobal

makeGlobal(): DeleteBehaviourTrait
Makes this Trait instance global.

Returns DeleteBehaviourTrait
Inherited from Trait.makeGlobal
- Defined in src/traits/Trait.ts:237

name

name(): string
Used to return the name.

Returns string
Inherited from Trait.name
- Defined in src/traits/Trait.ts:198

preDeleteForbid

preDeleteForbid(traitData: TraitDataObject<unknown, Record<string, any>, Promise<any>>, uuid: string, datasourceWrapper: DataSourceWrapper, context: KosmosUserContext<object>): Promise<void>
Pre-delete hook implementation.

Checks if delete action may be executed, forbid otherwise.

Returns
Parameters
- traitData: TraitDataObject<unknown, Record<string, any>, Promise<any>>
- uuid: string
- datasourceWrapper: DataSourceWrapper
  
  Datasource wrapper object.
- context: KosmosUserContext<object>
  
  The context of the user who the call is being made on behalf of.
Returns Promise<void>
- Defined in src/traits/DeleteBehaviourTrait.ts:128

process

process<RT, Payload>(callbackName: string, datasourceWrapper: DataSourceWrapper, data: TraitDataObject<RT, Payload, Promise<any>>): Promise<RT>
This method is triggered when a trait callback has been activated
Type Parameters
- RT = any
- Payload = any
Parameters
- callbackName: string
  
  This is the name of the callback function to call.
- datasourceWrapper: DataSourceWrapper
  
  References to the Graph Hanlder
- data: TraitDataObject<RT, Payload, Promise<any>>
  
  Request data passed along as part of the request.
Returns Promise<RT>
Inherited from Trait.process
- Defined in src/traits/Trait.ts:147

setConfig

setConfig(config: DeleteBehaviourTraitConfig): void
DeleteBehaviourTrait config setter.
Parameters
- config: DeleteBehaviourTraitConfig
  
  This configuration object
Returns void
Overrides Trait.setConfig
- Defined in src/traits/DeleteBehaviourTrait.ts:72

traitConfig

traitConfig(): DeleteBehaviourTraitConfig
Returns DeleteBehaviourTraitConfig
Inherited from Trait.traitConfig
- Defined in src/traits/Trait.ts:205

wrapLegacyResolver

wrapLegacyResolver<RT, Payload>(resolver: LegacyKosmosTraitResolverCallback<RT, any>, datasourceWrapper: DataSourceWrapper, callbackName?: string): KosmosGraphQLResolver<RT, Payload, Promise<RT>>
Helper method for wrapping legacy Kosmos traits callbacks.

TODO: Remove this method once all Traits are converted.
Type Parameters
- RT = any
- Payload = any
Parameters
- resolver: LegacyKosmosTraitResolverCallback<RT, any>
- datasourceWrapper: DataSourceWrapper
- Optional callbackName: string
  
  Optional callback name; passing this parameter will additionally wrap the callback into legacy process().
Returns KosmosGraphQLResolver<RT, Payload, Promise<RT>>
Inherited from Trait.wrapLegacyResolver
- Defined in src/traits/Trait.ts:168

`Static` traitTypeName

traitTypeName(): string
This method should return the trait machine name(s).

Returns

Returns string
Overrides Trait.traitTypeName
- Defined in src/traits/DeleteBehaviourTrait.ts:112

Class DeleteBehaviourTrait

Hierarchy

Index

Constructors

Properties

Methods

Constructors

constructor

Returns DeleteBehaviourTrait

Properties

Protected Optional _config

Protected _global

Protected Optional _type

Methods

hookIntoSchema

Parameters

schemaItem: SchemaItem<SchemaItemType>

Returns void

hookIntoSchemaManager

Returns void

makeGlobal

Returns DeleteBehaviourTrait

name

Returns string

preDeleteForbid

Returns

Parameters

traitData: TraitDataObject<unknown, Record<string, any>, Promise<any>>

uuid: string

datasourceWrapper: DataSourceWrapper

context: KosmosUserContext<object>

Returns Promise<void>

process

Type Parameters

RT = any

Payload = any

Parameters

callbackName: string

datasourceWrapper: DataSourceWrapper

data: TraitDataObject<RT, Payload, Promise<any>>

Returns Promise<RT>

setConfig

Parameters

config: DeleteBehaviourTraitConfig

Returns void

traitConfig

Returns DeleteBehaviourTraitConfig

wrapLegacyResolver

Type Parameters

RT = any

Payload = any

Parameters

resolver: LegacyKosmosTraitResolverCallback<RT, any>

datasourceWrapper: DataSourceWrapper

Optional callbackName: string

Returns KosmosGraphQLResolver<RT, Payload, Promise<RT>>

Static traitTypeName

Returns

Returns string

Settings

Member Visibility

Theme

`Protected` `Optional` _config

`Protected` _global

`Protected` `Optional` _type

`Optional` callbackName: string

`Static` traitTypeName