ionic-orm-3/dist/src/decorator/Index.js

Data-mapper ORM for Ionic WebSQL and SQLite

import { getMetadataArgsStorage } from "../../index";
/**
 * Composite index must be set on entity classes and must specify entity's fields to be indexed.
 */
export function Index(nameOrFields, maybeFieldsOrOptions, maybeOptions) {
    var name = typeof nameOrFields === "string" ? nameOrFields : undefined;
    var fields = typeof nameOrFields === "string" ? maybeFieldsOrOptions : nameOrFields;
    var options = (typeof maybeFieldsOrOptions === "object" && !Array.isArray(maybeFieldsOrOptions)) ? maybeFieldsOrOptions : maybeOptions;
    return function (clsOrObject, propertyName) {
        var args = {
            target: propertyName ? clsOrObject.constructor : clsOrObject,
            name: name,
            columns: propertyName ? [propertyName] : fields,
            unique: options && options.unique ? true : false
        };
        getMetadataArgsStorage().indices.add(args);
    };
}
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