@directus/api/dist/database/run-ast/utils/apply-case-when.js

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

import { applyFilter } from "../lib/apply-query/filter/index.js";

//#region src/database/run-ast/utils/apply-case-when.ts
function applyCaseWhen({ columnCases, table, aliasMap, cases, column, alias, permissions }, { knex, schema }) {
	const caseQuery = knex.queryBuilder();
	applyFilter(knex, schema, caseQuery, { _or: columnCases }, table, aliasMap, cases, permissions);
	const compiler = knex.client.queryCompiler(caseQuery);
	const sqlParts = [];
	if (!compiler.grouped.where) return column;
	for (const statement of compiler.grouped.where) {
		const val = compiler[statement.type](statement);
		if (val) {
			if (sqlParts.length > 0) sqlParts.push(statement.bool);
			sqlParts.push(val);
		}
	}
	const sql = sqlParts.length > 0 ? sqlParts.join(" ") : "1";
	const bindings = [...caseQuery.toSQL().bindings, column];
	let rawCase = `(CASE WHEN ${sql} THEN ?? END)`;
	if (alias) {
		rawCase += " AS ??";
		bindings.push(alias);
	}
	return knex.raw(rawCase, bindings);
}

//#endregion
export { applyCaseWhen };