octobercms/october · error · Error

The $.oc.table.datasource namespace is not defined. Make sur

Error message

The $.oc.table.datasource namespace is not defined. Make sure that the table.datasource.base.js script is loaded.

What it means

Error "The $.oc.table.datasource namespace is not defined. Make sure that the table.datasource.base.js script is loaded." thrown in octobercms/october.

Source

Thrown at modules/backend/widgets/table/assets/js/table.datasource.server.js:13

/*
 * Server memory data source for the table control.
 */
+function ($) { "use strict";

    // NAMESPACE CHECK
    // ============================

    if ($.oc.table === undefined)
        throw new Error("The $.oc.table namespace is not defined. Make sure that the table.js script is loaded.");

    if ($.oc.table.datasource === undefined)
        throw new Error("The $.oc.table.datasource namespace is not defined. Make sure that the table.datasource.base.js script is loaded.");

    // CLASS DEFINITION
    // ============================

    var Base = $.oc.table.datasource.base,
        BaseProto = Base.prototype

    var Server = function(tableObj) {
        Base.call(this, tableObj)

        var dataString = tableObj.getElement().getAttribute('data-data')

        if (dataString === null || dataString === undefined)
            throw new Error('The required data-data attribute is not found on the table control element.')

        this.data = JSON.parse(dataString)
    };

View on GitHub (pinned to b608633a7e)

When it happens

Trigger: Thrown at modules/backend/widgets/table/assets/js/table.datasource.server.js:13 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of octobercms/october@b608633a7e (2026-08-21). Data as JSON: /api/errors/669a9b8ea702c41f. Report an issue: GitHub.