@directus/api/dist/database/run-ast/utils/get-inner-query-column-pre-processor.js

Directus is a real-time API and App dashboard for managing SQL database content

import { applyCaseWhen } from "./apply-case-when.js";
import { getNodeAlias } from "./get-field-alias.js";

//#region src/database/run-ast/utils/get-inner-query-column-pre-processor.ts
function getInnerQueryColumnPreProcessor(knex, schema, table, cases, permissions, aliasMap, aliasPrefix) {
	return function(fieldNode) {
		const alias = getNodeAlias(fieldNode);
		if (fieldNode.whenCase && fieldNode.whenCase.length > 0) {
			const columnCases = [];
			for (const index of fieldNode.whenCase) columnCases.push(cases[index]);
			const caseWhen = applyCaseWhen({
				column: knex.raw(1),
				columnCases,
				aliasMap,
				cases,
				table,
				permissions
			}, {
				knex,
				schema
			});
			return knex.raw("COUNT(??) AS ??", [caseWhen, `${aliasPrefix}_${alias}`]);
		}
		return null;
	};
}

//#endregion
export { getInnerQueryColumnPreProcessor };