@atlassian/aui/src/js/aui/restful-table.js

import $ from './jquery';
import 'jquery-ui/ui/core';
import 'jquery-ui/ui/widget';
import 'jquery-ui/ui/widgets/mouse';
import 'jquery-ui/ui/widgets/draggable';
import 'jquery-ui/ui/widgets/sortable';
import * as logger from './internal/log';
import Backbone from 'backbone';
import classNames from './restful-table/class-names';
import CustomCreateView from './restful-table/custom-create-view';
import CustomEditView from './restful-table/custom-edit-view';
import CustomReadView from './restful-table/custom-read-view';
import dataKeys from './restful-table/data-keys';
import EditRow from './restful-table/edit-row';
import EntryModel from './restful-table/entry-model';
import {triggerEvtForInst} from './restful-table/event-handlers';
import events from './restful-table/event-names';
import globalize from './internal/globalize';
import Row from './restful-table/row';
import { I18n } from './i18n';
import {spinner} from './restful-table/spinner';

/**
 * A table whose entries/rows can be retrieved, added and updated via REST (CRUD).
 * It uses backbone.js to sync the table's state back to the server, avoiding page refreshes.
 *
 * @class RestfulTable
 */
var RestfulTable = Backbone.View.extend({
    /**
     * @param {!Object} options
     * ... {!Object} resources
     * ... ... {(string|function(function(Array.<Object>)))} all - URL of REST resource OR function that retrieves all entities.
     * ... ... {string} self - URL of REST resource to sync a single entities state (CRUD).
     * ... {!(selector|Element|jQuery)} el - Table element or selector of the table element to populate.
     * ... {!Array.<Object>} columns - Which properties of the entities to render. The id of a column maps to the property of an entity.
     * ... {Object} views
     * ... ... {RestfulTable.EditRow} editRow - Backbone view that renders the edit & create row. Your view MUST extend RestfulTable.EditRow.
     * ... ... {RestfulTable.Row} row - Backbone view that renders the readonly row. Your view MUST extend RestfulTable.Row.
     * ... {boolean} allowEdit - Is the table editable. If true, clicking row will switch it to edit state. Default true.
     * ... {boolean} allowDelete - Can entries be removed from the table, default true.
     * ... {boolean} allowCreate - Can new entries be added to the table, default true.
     * ... {boolean} allowReorder - Can we drag rows to reorder them, default false.
     * ... {boolean} autoFocus - Automatically set focus to first field on init, default false.
     * ... {boolean} reverseOrder - Reverse the order of rows, default false.
     * ... {boolean} silent - Do not trigger a "refresh" event on sort, default false.
     * ... {String} id - The id for the table. This id will be used to fire events specific to this instance.
     * ... {string} createPosition - If set to "bottom", place the create form at the bottom of the table instead of the top.
     * ... {string} addPosition - If set to "bottom", add new rows at the bottom of the table instead of the top. If undefined, createPosition will be used to define where to add the new row.
     * ... {string} noEntriesMsg - Text to display under the table header if it is empty, default empty.
     * ... {string} loadingMsg - Text/HTML to display while loading, default "Loading".
     * ... {string} submitAccessKey - Access key for submitting.
     * ... {string} cancelAccessKey - Access key for canceling.
     * ... @property {RestfulTable~deleteConfirmationCallback} deleteConfirmationCallback - function returning Promise determining if row should be deleted or not
     * ... {function(string): (selector|jQuery|Element)} fieldFocusSelector - Element to focus on given a name.
     * ... {EntryModel} model - Backbone model representing a row, default EntryModel.
     * ... {Backbone.Collection} Collection - Backbone collection representing the entire table, default Backbone.Collection.
     * @callback deleteConfirmationCallback
     */
    initialize: function (options) {
        var instance = this;

        // combine default and user options
        instance.options = $.extend(true, instance._getDefaultOptions(options), options);

        // Prefix events for this instance with this id.
        instance.id = this.options.id;

        // faster lookup
        instance._event = events;
        instance.classNames = classNames;
        instance.dataKeys = dataKeys;

        // shortcuts to popular elements
        this.$table = $(options.el)
            .addClass(this.classNames.RESTFUL_TABLE)
            .addClass(this.classNames.ALLOW_HOVER)
            .addClass('aui');

        this.$table.wrapAll("<form class='aui' action='#' />");

        this.$thead = $('<thead/>');
        this.$theadRow = $('<tr />').appendTo(this.$thead);
        this.$tbody = $('<tbody/>');

        if (!this.$table.length) {
            throw new Error('RestfulTable: Init failed! The table you have specified [' + this.$table.selector + '] cannot be found.');
        }

        if (!this.options.columns) {
            throw new Error("RestfulTable: Init failed! You haven't provided any columns to render.");
        }

        if (this.options.deleteConfirmationCallback && !(this.options.deleteConfirmationCallback instanceof Function)) {
            throw new Error('RestfulTable: Init failed! deleteConfirmationCallback is not a function');
        }

        // Let user know the table is loading
        this.showGlobalLoading();
        this.options.columns.forEach(function (column) {
            var header = $.isFunction(column.header) ? column.header() : column.header;
            if (typeof header === 'undefined') {
                logger.warn('You have not specified [header] for column [' + column.id + ']. Using id for now...');
                header = column.id;
            }

            instance.$theadRow.append('<th>' + header + '</th>');
        });

        // columns for submit buttons and loading indicator used when editing
        instance.$theadRow.append('<th></th><th></th>');

        // create a new Backbone collection to represent rows (http://documentcloud.github.com/backbone/#Collection)
        this._models = this._createCollection();

        // shortcut to the class we use to create rows
        this._rowClass = this.options.views.row;

        this.editRows = []; // keep track of rows that are being edited concurrently

        this.$table.closest('form').submit(function (e) {
            if (instance.focusedRow) {
                // Delegates saving of row. See EditRow.submit
                instance.focusedRow.trigger(instance._event.SAVE);
            }
            e.preventDefault();
        });

        if (this.options.allowReorder) {
            // Add allowance for another cell to the <thead>
            this.$theadRow.prepend('<th />');

            // Allow drag and drop reordering of rows
            this.$tbody.sortable({
                handle: '.' + this.classNames.DRAG_HANDLE,
                helper: function (e, elt) {
                    var helper = $('<div/>').attr('class', elt.attr('class')).addClass(instance.classNames.MOVEABLE);
                    elt.children().each(function () {
                        var $td = $(this);

                        // .offsetWidth/.outerWidth() is broken in webkit for tables, so we do .clientWidth + borders
                        // Need to coerce the border-left-width to an in because IE - http://bugs.jquery.com/ticket/10855
                        var borderLeft = parseInt(0 + $td.css('border-left-width'), 10);
                        var borderRight = parseInt(0 + $td.css('border-right-width'), 10);
                        var width = $td[0].clientWidth + borderLeft + borderRight;

                        helper.append($('<div/>').html($td.html()).attr('class', $td.attr('class')).width(width));
                    });

                    helper = $("<div class='aui-restfultable-readonly'/>").append(helper); // Basically just to get the styles.
                    helper.css({left: elt.offset().left}); // To align with the other table rows, since we've locked scrolling on x.
                    helper.appendTo(document.body);

                    return helper;
                },
                start: function (event, ui) {
                    var cachedHeight = ui.helper[0].clientHeight;
                    var $this = ui.placeholder.find('td');

                    // Make sure that when we start dragging widths do not change
                    ui.item
                        .addClass(instance.classNames.MOVEABLE)
                        .children().each(function (i) {
                            $(this).width($this.eq(i).width());
                        });

                    // Create a <td> to add to the placeholder <tr> to inherit CSS styles.
                    var td = '<td colspan="' + instance.getColumnCount() + '">&nbsp;</td>';

                    ui.placeholder.html(td).css({
                        height: cachedHeight,
                        visibility: 'visible'
                    });

                    // Stop hover effects etc from occuring as we move the mouse (while dragging) over other rows
                    instance.getRowFromElement(ui.item[0]).trigger(instance._event.MODAL);
                },
                stop: function (event, ui) {
                    if ($(ui.item[0]).is(':visible')) {
                        ui.item
                            .removeClass(instance.classNames.MOVEABLE)
                            .children().attr('style', '');

                        ui.placeholder.removeClass(instance.classNames.ROW);

                        // Return table to a normal state
                        instance.getRowFromElement(ui.item[0]).trigger(instance._event.MODELESS);
                    }
                },
                update: function (event, ui) {
                    var context = {
                        row: instance.getRowFromElement(ui.item[0]),
                        item: ui.item,
                        nextItem: ui.item.next(),
                        prevItem: ui.item.prev()
                    };

                    instance.move(context);
                },
                axis: 'y',
                delay: 0,
                containment: 'document',
                cursor: 'move',
                scroll: true,
                zIndex: 8000
            });

            // Prevent text selection while reordering.
            this.$tbody.on('selectstart mousedown', function (event) {
                return !$(event.target).is('.' + instance.classNames.DRAG_HANDLE);
            });
        }

        if (this.options.allowCreate !== false) {

            // Create row responsible for adding new entries ...
            this._createRow = new this.options.views.editRow({
                columns: this.options.columns,
                isCreateRow: true,
                model: this.options.model.extend({
                    url: function () {
                        return instance.options.resources.self;
                    }
                }),
                cancelAccessKey: this.options.cancelAccessKey,
                submitAccessKey: this.options.submitAccessKey,
                allowReorder: this.options.allowReorder,
                fieldFocusSelector: this.options.fieldFocusSelector
            });
            this._createRow.on(this._event.CREATED, function (values) {
                if ((typeof instance.options.addPosition === 'undefined' && instance.options.createPosition === 'bottom') ||
                        instance.options.addPosition === 'bottom') {
                    instance.addRow(values);
                } else {
                    instance.addRow(values, 0);
                }
            });
            this._createRow.on(this._event.VALIDATION_ERROR, function () {
                this.trigger(instance._event.FOCUS);
            });
            this._createRow.render({
                errors: {},
                values: {}
            });

            // ... and appends it as the first row
            this.$create = $('<tbody class="' + this.classNames.CREATE + '" />')
                .append(this._createRow.el);

            // Manage which row has focus
            this._applyFocusCoordinator(this._createRow);

            // focus create row
            if (this.options.autoFocus) {
                this._createRow.trigger(this._event.FOCUS);
            }
        }

        // when a model is removed from the collection, remove it from the viewport also
        this._models.on('remove', function (model) {
            instance.getRows().forEach(function (row) {
                if (row.model === model) {
                    if (row.hasFocus() && instance._createRow) {
                        instance._createRow.trigger(instance._event.FOCUS);
                    }
                    instance.removeRow(row);
                }
            });
        });

        this.fetchInitialResources();
    },

    fetchInitialResources: function () {
        var instance = this;
        if ($.isFunction(this.options.resources.all)) {
            this.options.resources.all(function (entries) {
                instance.populate(entries);
            });
        } else {
            $.get(this.options.resources.all, function (entries) {
                instance.populate(entries);
            });
        }
    },

    move: function (context) {

        var instance = this;

        var createRequest = function (afterElement) {
            if (!afterElement.length) {
                return {
                    position: 'First'
                };
            } else {
                var afterModel = instance.getRowFromElement(afterElement).model;
                return {
                    after: afterModel.url()
                };
            }
        };

        if (context.row) {

            var data = instance.options.reverseOrder ? createRequest(context.nextItem) : createRequest(context.prevItem);

            $.ajax({
                url: context.row.model.url() + '/move',
                type: 'POST',
                dataType: 'json',
                contentType: 'application/json',
                data: JSON.stringify(data),
                complete: function () {
                    // hides loading indicator (spinner)
                    context.row.hideLoading();
                },
                success: function (xhr) {
                    triggerEvtForInst(instance._event.REORDER_SUCCESS, instance, [xhr]);
                },
                error: function (xhr) {
                    var responseData = $.parseJSON(xhr.responseText || xhr.data);
                    triggerEvtForInst(instance._event.SERVER_ERROR, instance, [responseData, xhr, this]);
                }
            });

            // shows loading indicator (spinner)
            context.row.showLoading();
        }
    },

    _createCollection: function () {
        var instance = this;

        // create a new Backbone collection to represent rows (http://documentcloud.github.com/backbone/#Collection)
        var RowsAwareCollection = this.options.Collection.extend({
            // Force the collection to re-sort itself. You don't need to call this under normal
            // circumstances, as the set will maintain sort order as each item is added.
            sort: function (options) {
                options || (options = {});
                if (!this.comparator) {
                    throw new Error('Cannot sort a set without a comparator');
                }
                this.tableRows = instance.getRows();
                this.models = this.sortBy(this.comparator, this);
                this.tableRows = undefined;
                if (!options.silent) {
                    this.trigger('refresh', this, options);
                }
                return this;
            },
            remove: function (...args) {
                this.tableRows = instance.getRows();
                Backbone.Collection.prototype.remove.apply(this, args);
                this.tableRows = undefined;
                return this;
            }
        });

        return new RowsAwareCollection([], {
            comparator: function (row) {
                // sort models in collection based on dom ordering
                var index;

                var currentTableRows = (this && this.tableRows !== undefined) ? this.tableRows : instance.getRows();
                currentTableRows.some(function (item, i) {
                    if (item.model.id === row.id) {
                        index = i;
                        return true;
                    }
                });
                return index;
            }
        });
    },

    /**
     * Refreshes table with entries
     *
     * @param entries
     */
    populate: function (entries) {
        if (this.options.reverseOrder) {
            entries.reverse();
        }

        this.hideGlobalLoading();
        if (entries && entries.length) {
            // Empty the models collection
            this._models.reset([], {silent: true});
            // Add all the entries to collection and render them
            this.renderRows(entries);
            // show message to user if we have no entries
            if (this.isEmpty()) {
                this.showNoEntriesMsg();
            }
        } else {
            this.showNoEntriesMsg();
        }

        // Ok, lets let everyone know that we are done...
        this.$table
            .append(this.$thead);

        if (this.options.createPosition === 'bottom') {
            this.$table.append(this.$tbody)
                .append(this.$create);
        } else {
            this.$table
                .append(this.$create)
                .append(this.$tbody);
        }

        this.$table.trigger(this._event.INITIALIZED, [this]);

        triggerEvtForInst(this._event.INITIALIZED, this, [this]);

        if (this.options.autoFocus) {
            this.$table.find(':input:text:first').focus(); // set focus to first field
        }
    },

    /**
     * Shows loading indicator and text
     *
     * @return {RestfulTable}
     */
    showGlobalLoading: function () {
        if (!this.$loading) {
            this.$loading =  $('<div class="aui-restfultable-init">' +
                '<span class="aui-restfultable-loading">' + spinner + this.options.loadingMsg + '</span></div>');
        }

        if (!this.$loading.is(':visible')) {
            this.$loading.insertAfter(this.$table);
        }

        return this;
    },

    /**
     * Hides loading indicator and text
     * @return {RestfulTable}
     */
    hideGlobalLoading: function () {
        if (this.$loading) {
            this.$loading.remove();
        }
        return this;
    },


    /**
     * Adds row to collection and renders it
     *
     * @param {Object} values
     * @param {number} index
     * @return {RestfulTable}
     */
    addRow: function (values, index) {
        var view;
        var model;

        if (!values.id) {
            throw new Error('RestfulTable.addRow: to add a row values object must contain an id. ' +
                'Maybe you are not returning it from your restend point?' +
                'Recieved:' + JSON.stringify(values));
        }

        model = new this.options.model(values);


        view = this._renderRow(model, index);

        this._models.add(model);
        this.removeNoEntriesMsg();

        // Let everyone know we added a row
        triggerEvtForInst(this._event.ROW_ADDED, this, [view, this]);
        return this;
    },

    /**
     * Provided a view, removes it from display and backbone collection
     *
     * @param row {Row} The row to remove.
     */
    removeRow: function (row) {
        this._models.remove(row.model);
        row.remove();

        if (this.isEmpty()) {
            this.showNoEntriesMsg();
        }

        // Let everyone know we removed a row
        triggerEvtForInst(this._event.ROW_REMOVED, this, [row, this]);
    },

    /**
     * Is there any entries in the table
     *
     * @return {Boolean}
     */
    isEmpty: function () {
        return this._models.length === 0;
    },

    /**
     * Gets all models
     *
     * @return {Backbone.Collection}
     */
    getModels: function () {
        return this._models;
    },

    /**
     * Gets table body
     *
     * @return {jQuery}
     */
    getTable: function () {
        return this.$table;
    },

    /**
     * Gets table body
     *
     * @return {jQuery}
     */
    getTableBody: function () {
        return this.$tbody;
    },

    /**
     * Gets create Row
     *
     * @return {EditRow}
     */
    getCreateRow: function () {
        return this._createRow;
    },

    /**
     * Gets the number of table columns, accounting for the number of
     * additional columns added by RestfulTable itself
     * (such as the drag handle column, buttons and actions columns)
     *
     * @return {Number}
     */
    getColumnCount: function () {
        var staticFieldCount = 2; // accounts for the columns allocated to submit buttons and loading indicator
        if (this.allowReorder) {
            ++staticFieldCount;
        }
        return this.options.columns.length + staticFieldCount;
    },

    /**
     * Get the Row that corresponds to the given <tr> element.
     *
     * @param {HTMLElement} tr
     *
     * @return {Row}
     */
    getRowFromElement: function (tr) {
        return $(tr).data(this.dataKeys.ROW_VIEW);
    },

    /**
     * Shows message {options.noEntriesMsg} to the user if there are no entries
     *
     * @return {RestfulTable}
     */
    showNoEntriesMsg: function () {

        if (this.$noEntries) {
            this.$noEntries.remove();
        }

        this.$noEntries = $('<tr>')
            .addClass(this.classNames.NO_ENTRIES)
            .append($('<td>')
                .attr('colspan', this.getColumnCount())
                .text(this.options.noEntriesMsg)
            )
            .appendTo(this.$tbody);

        return this;
    },

    /**
     * Removes message {options.noEntriesMsg} to the user if there ARE entries
     *
     * @return {RestfulTable}
     */
    removeNoEntriesMsg: function () {
        if (this.$noEntries && this._models.length > 0) {
            this.$noEntries.remove();
        }
        return this;
    },

    /**
     * Gets the Row from their associated <tr> elements
     *
     * @return {Array}
     */
    getRows: function () {
        var instance = this;
        var views = [];

        this.$tbody.find('.' + this.classNames.READ_ONLY).each(function () {
            var $row = $(this);
            var view = $row.data(instance.dataKeys.ROW_VIEW);

            if (view) {
                views.push(view);
            }
        });

        return views;
    },

    /**
     * Appends entry to end or specified index of table
     *
     * @param {EntryModel} model
     * @param index
     *
     * @return {jQuery}
     */
    _renderRow: function (model, index) {
        var instance = this;
        var $rows = this.$tbody.find('.' + this.classNames.READ_ONLY);
        var $row;
        var view;

        view = new this._rowClass({
            model: model,
            columns: this.options.columns,
            allowEdit: this.options.allowEdit,
            allowDelete: this.options.allowDelete,
            allowReorder: this.options.allowReorder,
            deleteConfirmationCallback: this.options.deleteConfirmationCallback
        });

        this.removeNoEntriesMsg();

        view.on(this._event.ROW_EDIT, function (field) {
            triggerEvtForInst(this._event.EDIT_ROW, {}, [this, instance]);
            instance.edit(this, field);
        });

        $row = view.render().$el;

        if (index !== -1) {

            if (typeof index === 'number' && $rows.length !== 0) {
                $row.insertBefore($rows[index]);
            } else {
                this.$tbody.append($row);
            }
        }

        $row.data(this.dataKeys.ROW_VIEW, view);

        // deactivate all rows - used in the cases, such as opening a dropdown where you do not want the table editable
        // or any interactions
        view.on(this._event.MODAL, function () {
            instance.$table.removeClass(instance.classNames.ALLOW_HOVER);
            instance.$tbody.sortable('disable');
            instance.getRows().forEach(function (row) {
                if (!instance.isRowBeingEdited(row)) {
                    row.delegateEvents({}); // clear all events
                }
            });
        });

        // activate all rows - used in the cases, such as opening a dropdown where you do not want the table editable
        // or any interactions
        view.on(this._event.MODELESS, function () {
            instance.$table.addClass(instance.classNames.ALLOW_HOVER);
            instance.$tbody.sortable('enable');
            instance.getRows().forEach(function (row) {
                if (!instance.isRowBeingEdited(row)) {
                    row.delegateEvents(); // rebind all events
                }
            });
        });

        // ensure that when this row is focused no other are
        this._applyFocusCoordinator(view);

        this.trigger(this._event.ROW_INITIALIZED, view);

        return view;
    },

    /**
     * Returns if the row is edit mode or note.
     *
     * @param {Row} row Read-only row to check if being edited.
     *
     * @return {Boolean}
     */
    isRowBeingEdited: function (row) {

        var isBeingEdited = false;

        this.editRows.some(function (editRow) {
            if (editRow.el === row.el) {
                isBeingEdited = true;
                return true;
            }
        });

        return isBeingEdited;
    },

    /**
     * Ensures that when supplied view is focused no others are
     *
     * @param {Backbone.View} view
     * @return {RestfulTable}
     */
    _applyFocusCoordinator: function (view) {
        var instance = this;

        if (!view.hasFocusBound) {
            view.hasFocusBound = true;

            view.on(this._event.FOCUS, function () {
                if (instance.focusedRow && instance.focusedRow !== view) {
                    instance.focusedRow.trigger(instance._event.BLUR);
                }
                instance.focusedRow = view;
                if (view instanceof Row && instance._createRow) {
                    instance._createRow.enable();
                }
            });
        }

        return this;
    },

    /**
     * Remove specified row from collection holding rows being concurrently edited
     *
     * @param {EditRow} editView
     *
     * @return {RestfulTable}
     */
    _removeEditRow: function (editView) {
        var index = $.inArray(editView, this.editRows);
        this.editRows.splice(index, 1);
        return this;
    },

    /**
     * Focuses last row still being edited or create row (if it exists)
     *
     * @return {RestfulTable}
     */
    _shiftFocusAfterEdit: function () {

        if (this.editRows.length > 0) {
            this.editRows[this.editRows.length - 1].trigger(this._event.FOCUS);
        } else if (this._createRow) {
            this._createRow.trigger(this._event.FOCUS);
        }

        return this;
    },

    /**
     * Evaluate if we save row when we blur. We can only do this when there is one row being edited at a time, otherwise
     * it causes an infinite loop JRADEV-5325
     *
     * @return {boolean}
     */
    _saveEditRowOnBlur: function () {
        return this.editRows.length <= 1;
    },

    /**
     * Dismisses rows being edited concurrently that have no changes
     */
    dismissEditRows: function () {
        this.editRows.forEach(function (editRow) {
            if (!editRow.hasUpdates()) {
                editRow.trigger(this._event.FINISHED_EDITING);
            }
        }, this);
    },

    /**
     * Converts readonly row to editable view
     *
     * @param {Backbone.View} row
     * @param {String} field - field name to focus
     * @return {Backbone.View} editRow
     */
    edit: function (row, field) {
        var instance = this;
        var editRow = new this.options.views.editRow({
            el: row.el,
            columns: this.options.columns,
            isUpdateMode: true,
            allowReorder: this.options.allowReorder,
            fieldFocusSelector: this.options.fieldFocusSelector,
            model: row.model,
            cancelAccessKey: this.options.cancelAccessKey,
            submitAccessKey: this.options.submitAccessKey
        });
        var values = row.model.toJSON();

        values.update = true;
        editRow.render({
            errors: {},
            update: true,
            values: values
        })
            .on(instance._event.UPDATED, function (model, focusUpdated) {
                instance._removeEditRow (this);
                this.off();
                row.render().delegateEvents(); // render and rebind events
                row.trigger(instance._event.UPDATED); // trigger blur fade out
                if (focusUpdated !== false) {
                    instance._shiftFocusAfterEdit();
                }
            })
            .on(instance._event.VALIDATION_ERROR, function () {
                this.trigger(instance._event.FOCUS);
            })
            .on(instance._event.FINISHED_EDITING, function () {
                instance._removeEditRow(this);
                row.render().delegateEvents();
                this.off();  // avoid any other updating, blurring, finished editing, cancel events being fired
            })
            .on(instance._event.CANCEL, function () {
                instance._removeEditRow(this);
                this.off();  // avoid any other updating, blurring, finished editing, cancel events being fired
                row.render().delegateEvents(); // render and re` events
                instance._shiftFocusAfterEdit();
            })
            .on(instance._event.BLUR, function () {
                instance.dismissEditRows(); // dismiss edit rows that have no changes
                if (instance._saveEditRowOnBlur()) {
                    this.trigger(instance._event.SAVE, false);  // save row, which if successful will call the updated event above
                }
            });

        // Ensure that if focus is pulled to another row, we blur the edit row
        this._applyFocusCoordinator(editRow);

        // focus edit row, which has the flow on effect of blurring current focused row
        editRow.trigger(instance._event.FOCUS, field);

        // disables form fields
        if (instance._createRow) {
            instance._createRow.disable();
        }

        this.editRows.push(editRow);

        return editRow;
    },


    /**
     * Renders all specified rows
     *
     * @param rows {Array<Backbone.Model>} array of objects describing Backbone.Model's to render
     * @return {RestfulTable}
     */
    renderRows: function (rows = []) {
        var comparator = this._models.comparator;
        var els = [];

        this._models.comparator = undefined; // disable temporarily, assume rows are sorted

        var models = rows.map((row) => {
            var model = new this.options.model(row);
            els.push(this._renderRow(model, -1).el);
            return model;
        });

        this._models.add(models, {silent: true});
        this._models.comparator = comparator;
        this.removeNoEntriesMsg();
        this.$tbody.append(els);

        return this;
    },

    /**
     * Gets default options
     *
     * @param {Object} options
     */
    _getDefaultOptions: function (options) {
        return {
            model: options.model || EntryModel,
            allowEdit: true,
            views: {
                editRow: EditRow,
                row: Row
            },
            Collection: Backbone.Collection.extend({
                url: options.resources.self,
                model: options.model || EntryModel
            }),
            allowReorder: false,
            fieldFocusSelector: function (name) {
                return ':input[name=' + name + '], #' + name;
            },
            loadingMsg: options.loadingMsg || I18n.getText('aui.words.loading')
        };
    }
});

RestfulTable.ClassNames = classNames;
RestfulTable.CustomCreateView = CustomCreateView;
RestfulTable.CustomEditView = CustomEditView;
RestfulTable.CustomReadView = CustomReadView;
RestfulTable.DataKeys = dataKeys;
RestfulTable.EditRow = EditRow;
RestfulTable.EntryModel = EntryModel;
RestfulTable.Events = events;
RestfulTable.Row = Row;

globalize('RestfulTable', RestfulTable);

export default RestfulTable;