MetaUtil

MetaUtil class provides helper methods for accessing and evaluating metadata across all WordPress meta tables.

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Description

• Wraps access to the Meta class for post, user, term, comment, site, and blog metadata.
• Supports protected key detection via isProtected().
• Resolves object subtypes (e.g., post type, taxonomy) using utility classes.
• Follows WordPress conventions from meta.php.

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Usage

const context = await Application.getContext();
const metaUtil = context.components.get(MetaUtil);
const meta = await metaUtil.getValue("post", revisionId, "meta_key");

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Methods

get

get(table: types.MetaTable, id: number): Meta

Returns a Meta instance for the given table and object ID.

getValue

getValue<T = string>(
  table: types.MetaTable,
  id: number,
  key: string
): Promise<T | undefined>

Fetches a single metadata value for the given key and object.

isProtected

isProtected(metaKey: string, metaType?: types.MetaTable): boolean

Returns true if the key is considered protected (begins with _).

getObjectSubtype

getObjectSubtype(
  type: "post" | "comment" | "term" | "user",
  id: number
): Promise<string>

Resolves the object subtype based on the type and ID:

• post: returns post type.
• term: returns taxonomy.
• comment: returns "comment" if comment exists.
• user: returns "user" if user exists.

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