The data model for a behavior that receives Region events.

Memberof

data.behaviors

Abstract

Hierarchy (view full)

Constructors

Properties

events: Set<string> = ...

The events that are handled by the behavior.

_source: object

The source data object for this DataModel instance. Once constructed, the source object is sealed such that no keys may be added nor removed.

parent: DataModel

An immutable reverse-reference to a parent DataModel to which this model belongs.

events: Record<string, EventBehaviorStaticHandler> = {}

The Region events that are handled by the behavior.

LOCALIZATION_PREFIXES: string[] = []

A set of localization prefix paths which are used by this data model.

Accessors

  • get behavior(): any
  • A convenience reference to the RegionBehavior which contains this behavior sub-type.

    Returns any

  • get region(): any
  • A convenience reference to the RegionDocument which contains this behavior sub-type.

    Returns any

  • get scene(): any
  • A convenience reference to the Scene which contains this behavior sub-type.

    Returns any

  • get schema(): SchemaField
  • Define the data schema for this document instance.

    Returns SchemaField

  • get invalid(): boolean
  • Is the current state of this DataModel invalid? The model is invalid if there is any unresolved failure.

    Returns boolean

Methods

  • Prepare data related to this DataModel itself, before any derived data is computed.

    Called before ClientDocument#prepareBaseData in ClientDocument#prepareData.

    Returns void

  • Apply transformations of derivations to the values of the source data object. Compute data fields whose values are not stored to the database.

    Called before ClientDocument#prepareDerivedData in ClientDocument#prepareData.

    Returns void

  • Convert this Document to some HTML display for embedding purposes.

    Parameters

    • config: DocumentHTMLEmbedConfig

      Configuration for embedding behavior.

    • Optional options: EnrichmentOptions = {}

      The original enrichment options for cases where the Document embed content also contains text that must be enriched.

    Returns Promise<HTMLElement | HTMLCollection>

  • Internal

    Called by ClientDocument#_preCreate.

    Parameters

    • data: object

      The initial data object provided to the document creation request

    • options: object

      Additional options which modify the creation request

    • user: BaseUser

      The User requesting the document creation

    Returns Promise<boolean | void>

    Return false to exclude this Document from the creation operation

  • Reset the state of this data instance back to mirror the contained source data, erasing any changes.

    Returns void

  • Clone a model, creating a new data model by combining current data with provided overrides.

    Parameters

    • Optional data: Object = {}

      Additional data which overrides current document data at the time of creation

    • Optional context: object = {}

      Context options passed to the data model constructor

    Returns Document | Promise<Document>

    The cloned Document instance

  • Validate the data contained in the document to check for type and content This function throws an error if data within the document is not valid

    Parameters

    • options: {
          changes: object;
          clean: boolean;
          fallback: boolean;
          dropInvalidEmbedded: boolean;
          strict: boolean;
          fields: boolean;
          joint: boolean;
      } = {}

      Optional parameters which customize how validation occurs.

      • changes: object

        A specific set of proposed changes to validate, rather than the full source data of the model.

      • clean: boolean

        If changes are provided, attempt to clean the changes before validating them?

      • fallback: boolean

        Allow replacement of invalid values with valid defaults?

      • dropInvalidEmbedded: boolean

        If true, invalid embedded documents will emit a warning and be placed in the invalidDocuments collection rather than causing the parent to be considered invalid.

      • strict: boolean

        Throw if an invalid value is encountered, otherwise log a warning?

      • fields: boolean

        Perform validation on individual fields?

      • joint: boolean

        Perform joint validation on the full data model? Joint validation will be performed by default if no changes are passed. Joint validation will be disabled by default if changes are passed. Joint validation can be performed on a complete set of changes (for example testing a complete data model) by explicitly passing true.

    Returns boolean

    An indicator for whether the document contains valid data

  • Update the DataModel locally by applying an object of changes to its source data. The provided changes are cleaned, validated, and stored to the source data object for this model. The source data is then re-initialized to apply those changes to the prepared data. The method returns an object of differential changes which modified the original data.

    Parameters

    • changes: object = {}

      New values which should be applied to the data model

    • Optional options: object = {}

      Options which determine how the new data is merged

    Returns object

    An object containing the changed keys and values

  • Copy and transform the DataModel into a plain object. Draw the values of the extracted object from the data source (by default) otherwise from its transformed values.

    Parameters

    • Optional source: boolean = true

      Draw values from the underlying data source rather than transformed values

    Returns object

    The extracted primitive object

  • Extract the source data for the DataModel into a simple object format that can be serialized.

    Returns object

    The document source data expressed as a plain object

  • Protected Internal

    Handle the Region event.

    Parameters

    • event: RegionEvent

      The Region event

    Returns Promise<void>

  • Protected Internal

    Called by ClientDocument#_onCreate.

    Parameters

    • data: object

      The initial data object provided to the document creation request

    • options: object

      Additional options which modify the creation request

    • userId: string

      The id of the User requesting the document update

    Returns void

  • Protected Internal

    Called by ClientDocument#_preUpdate.

    Parameters

    • changes: object

      The candidate changes to the Document

    • options: object

      Additional options which modify the update request

    • user: BaseUser

      The User requesting the document update

    Returns Promise<boolean | void>

    A return value of false indicates the update operation should be cancelled.

  • Protected Internal

    Called by ClientDocument#_onUpdate.

    Parameters

    • changed: object

      The differential data that was changed relative to the documents prior values

    • options: object

      Additional options which modify the update request

    • userId: string

      The id of the User requesting the document update

    Returns void

  • Protected Internal

    Called by ClientDocument#_preDelete.

    Parameters

    • options: object

      Additional options which modify the deletion request

    • user: BaseUser

      The User requesting the document deletion

    Returns Promise<boolean | void>

    A return value of false indicates the deletion operation should be cancelled.

  • Protected Internal

    Called by ClientDocument#_onDelete.

    Parameters

    • options: object

      Additional options which modify the deletion request

    • userId: string

      The id of the User requesting the document update

    Returns void

  • Protected

    Configure the data model instance before validation and initialization workflows are performed.

    Parameters

    • options: {} = {}

      Returns void

    • Protected

      Initialize the source data for a new DataModel instance. One-time migrations and initial cleaning operations are applied to the source data.

      Parameters

      • data: object | DataModel

        The candidate source data from which the model will be constructed

      • Optional options: object = {}

        Options provided to the model constructor

      Returns object

      Migrated and cleaned source data which will be stored to the model instance

    • Protected

      Initialize the instance by copying data from the source object to instance attributes. This mirrors the workflow of SchemaField#initialize but with some added functionality.

      Parameters

      • Optional options: object = {}

        Options provided to the model constructor

      Returns void

    • Clean a data source object to conform to a specific provided schema.

      Parameters

      • Optional source: object = {}

        The source data object

      • Optional options: object = {}

        Additional options which are passed to field cleaning methods

      Returns object

      The cleaned source data

    • Evaluate joint validation rules which apply validation conditions across multiple fields of the model. Field-specific validation rules should be defined as part of the DataSchema for the model. This method allows for testing aggregate rules which impose requirements on the overall model.

      Parameters

      • data: object

        Candidate data for the model

      Returns any

      Throws

      An error if a validation failure is detected

    • Create a new instance of this DataModel from a source record. The source is presumed to be trustworthy and is not strictly validated.

      Parameters

      • source: object

        Initial document data which comes from a trusted source.

      • Optional context: any = {}

        Model construction context

      Returns DataModel

    • Create a DataModel instance using a provided serialized JSON string.

      Parameters

      • json: string

        Serialized document data in string format

      Returns DataModel

      A constructed data model instance

    • Migrate candidate source data for this DataModel which may require initial cleaning or transformations.

      Parameters

      • source: object

        The candidate source data from which the model will be constructed

      Returns object

      Migrated source data, if necessary

    • Wrap data migration in a try/catch which attempts it safely

      Parameters

      • source: object

        The candidate source data from which the model will be constructed

      Returns object

      Migrated source data, if necessary

    • Take data which conforms to the current data schema and add backwards-compatible accessors to it in order to support older code which uses this data.

      Parameters

      • data: object

        Data which matches the current schema

      • Optional options: {
            embedded: boolean;
        } = {}

        Additional shimming options

        • embedded: boolean

          Apply shims to embedded models?

      Returns object

      Data with added backwards-compatible properties

    • Protected

      Create the events field.

      Parameters

      • options: {
            events: string[];
            initial: string[];
        } = {}

        Options which configure how the events field is declared

        • events: string[]

          The event names to restrict to.

        • initial: string[]

          The initial set of events that should be default for the field

      Returns SetField

    • Protected

      A generator that orders the DataFields in the DataSchema into an expected initialization order.

      Returns Generator<[string, DataField], any, any>