django-js-reverse/index.mjs

JavaScript url handling for Django that doesn't hurt.

const module = {};module.exports = (function () {
    "use strict";
    var data = false;
    function factory(d) {
        var url_patterns = d.urls;
        var url_prefix = d.prefix;
        var Urls = {};
        var self_url_patterns = {};

        var _get_url = function (url_pattern) {
        return function () {
            var _arguments, index, url, url_arg, url_args, _i, _len, _ref,
            _ref_list, match_ref, provided_keys, build_kwargs;

            _arguments = arguments;
            _ref_list = self_url_patterns[url_pattern];

            if (arguments.length == 1 && typeof (arguments[0]) == "object") {
            // kwargs mode
            var provided_keys_list = Object.keys (arguments[0]);
            provided_keys = {};
            for (_i = 0; _i < provided_keys_list.length; _i++)
                provided_keys[provided_keys_list[_i]] = 1;

            match_ref = function (ref)
            {
                var _i;

                // Verify that they have the same number of arguments
                if (ref[1].length != provided_keys_list.length)
                return false;

                for (_i = 0;
                 _i < ref[1].length && ref[1][_i] in provided_keys;
                 _i++);

                // If for loop completed, we have all keys
                return _i == ref[1].length;
            }

            build_kwargs = function (keys) {return _arguments[0];}

            } else {
            // args mode
            match_ref = function (ref)
            {
                return ref[1].length == _arguments.length;
            }

            build_kwargs = function (keys) {
                var kwargs = {};

                for (var i = 0; i < keys.length; i++) {
                kwargs[keys[i]] = _arguments[i];
                }

                return kwargs;
            }
            }

            for (_i = 0;
             _i < _ref_list.length && !match_ref(_ref_list[_i]);
             _i++);

            // can't find a match
            if (_i == _ref_list.length)
            return null;

            _ref = _ref_list[_i];
            url = _ref[0], url_args = build_kwargs(_ref[1]);
            for (url_arg in url_args) {
            var url_arg_value = url_args[url_arg];
            if (url_arg_value === undefined || url_arg_value === null) {
                url_arg_value = '';
            } else {
                url_arg_value = url_arg_value.toString();
            }
            url = url.replace("%(" + url_arg + ")s", url_arg_value);
            }
            return url_prefix + url;
        };
        };

        var name, pattern, url, _i, _len, _ref;
        for (_i = 0, _len = url_patterns.length; _i < _len; _i++) {
        _ref = url_patterns[_i], name = _ref[0], pattern = _ref[1];
        self_url_patterns[name] = pattern;
        url = _get_url(name);
        Urls[name.replace(/[-_]+(.)/g, function (_m, p1) { return p1.toUpperCase(); })] = url;
        Urls[name.replace(/-/g, '_')] = url;
        Urls[name] = url;
        }

        return Urls;
    }
    return data ? factory(data) : factory;
})();
export default module.exports;