jQuery.fn.dataTable.ext.errMode = function(settings, note, message) {

    console.warn(message);

};

(function($) {

    $.fn.api = function(options) {

        var settings = null;

        if(options) {

            settings = $.extend(true, {}, dataTablesDefaults, {

                        'deferRender': true,

                        "paging": true,

                        'serverSide': true,

                        'searching': true,

                        'pagingType': 'full',

                        'ajax': {

                            'type': 'GET',

                            'cache': true,

                            'dataSrc': 'data',

                            'beforeSend': function(xhr, settings) {

                                this._xhr = xhr;

                                if(options.embed) {

                                    xhr.setRequestHeader('x-koha-embed', Array.isArray(options.embed)?options.embed.join(','):options.embed);

                                }

                                if(options.header_filter && options.query_parameters) {

                                    xhr.setRequestHeader('x-koha-query', options.query_parameters);

                                    delete options.query_parameters;

                                }

                            },

                            'dataFilter': function(data, type) {

                                var json = {data: JSON.parse(data)};

                                if(total = this._xhr.getResponseHeader('x-total-count')) {

                                    json.recordsTotal = total;

                                    json.recordsFiltered = total;

                                }

                                return JSON.stringify(json);

                            },

                            'data': function( data, settings ) {

                                var length = data.length;

                                var start  = data.start;

                                var dataSet = {

                                    _page: Math.floor(start/length) + 1,

                                    _per_page: length

                                };

                                var filter = data.search.value;

                                if (filter != '') {

                                    var query_parameters = settings.aoColumns

                                    .filter(function(col) {

                                        return col.bSearchable && typeof col.data == 'string'

                                    })

                                    .map(function(col) {

                                        var part = {};

                                        part[!col.data.includes('.')?'me.'+col.data:col.data] = {like: filter+'%'};

                                        return part;

                                    });

                                    if(query_parameters.length) {

                                        query_parameters = JSON.stringify(query_parameters.length === 1?query_parameters[0]:query_parameters);

                                        if(options.header_filter) {

                                            options.query_parameters = query_parameters;

                                        } else {

                                            dataSet.q = query_parameters;

                                        }

                                    }

                                    dataSet._match = 'starts_with';

                                } else {

                                    delete options.query_parameters;

                                }

                                if(options.columns) {

                                    var order = data.order;

                                    order.forEach(function (e,i) {

                                        var order_col      = e.column;

                                        var order_by       = options.columns[order_col].data;

                                        var order_dir      = e.dir == 'asc' ? '+' : '-';

                                        dataSet._order_by = order_dir + (!order_by.includes('.')?'me.'+order_by:order_by);

                                    });

                                }

                                return dataSet;

                            }

                        }

                    }, options);

        }

        return $(this).dataTable(settings);

    };

})(jQuery);