使用jQuery函数删除,编辑和添加按钮表中的问题,需要一些帮助

时间:2017-11-05 13:38:16

标签: javascript jquery

我正面临一个代码中的错误,我有大约3个表。问题是(删除,编辑,添加)按钮只更改第一个表而不是提到的表,例如,如果我试图在表3中添加行,它会在表1中添加一行而在表3中不执行任何操作,我需要为自己分隔每个表,我尝试编辑代码,但每次只更改第一个。我试图给table2和3一个不同的id,因为我发现table1有一个id,同样只发生了表1更改,编辑功能工作但是它也改变了table1的表,所以从技术上来说它不起作用。

这是js代码

var TableDatatablesEditable = function () {

    var handleTable = function () {

        function restoreRow(oTable, nRow) {
            var aData = oTable.fnGetData(nRow);
            var jqTds = $('>td', nRow);

            for (var i = 0, iLen = jqTds.length; i < iLen; i++) {
                oTable.fnUpdate(aData[i], nRow, i, false);
            }

            oTable.fnDraw();
        }

        function editRow(oTable, nRow) {
            var aData = oTable.fnGetData(nRow);
            var jqTds = $('>td', nRow);
            jqTds[0].innerHTML = '<input type="text" class="form-control input-small" value="' + aData[0] + '">';
            jqTds[1].innerHTML = '<input type="text" class="form-control input-small" value="' + aData[1] + '">';
            jqTds[2].innerHTML = '<input type="text" class="form-control input-small" value="' + aData[2] + '">';
            jqTds[3].innerHTML = '<input type="text" class="form-control input-small" value="' + aData[3] + '">';
            jqTds[4].innerHTML = '<a class="edit" href="">Save</a>';
            jqTds[5].innerHTML = '<a class="cancel" href="">Cancel</a>';
        }

        function saveRow(oTable, nRow) {
            var jqInputs = $('input', nRow);
            oTable.fnUpdate(jqInputs[0].value, nRow, 0, false);
            oTable.fnUpdate(jqInputs[1].value, nRow, 1, false);
            oTable.fnUpdate(jqInputs[2].value, nRow, 2, false);
            oTable.fnUpdate(jqInputs[3].value, nRow, 3, false);
            oTable.fnUpdate('<a class="edit" href="">Edit</a>', nRow, 4, false);
            oTable.fnUpdate('<a class="delete delete1 delete2" href="">Delete</a>', nRow, 5, false);
            oTable.fnDraw();
        }

        function cancelEditRow(oTable, nRow) {
            var jqInputs = $('input', nRow);
            oTable.fnUpdate(jqInputs[0].value, nRow, 0, false);
            oTable.fnUpdate(jqInputs[1].value, nRow, 1, false);
            oTable.fnUpdate(jqInputs[2].value, nRow, 2, false);
            oTable.fnUpdate(jqInputs[3].value, nRow, 3, false);
            oTable.fnUpdate('<a class="edit" href="">Edit</a>', nRow, 4, false);
            oTable.fnDraw();
        }

        var table = $("#sample_editable_1, #table2, #table3");

        var oTable = table.dataTable({

            // Uncomment below line("dom" parameter) to fix the dropdown overflow issue in the datatable cells. The default datatable layout
            // setup uses scrollable div(table-scrollable) with overflow:auto to enable vertical scroll(see: assets/global/plugins/datatables/plugins/bootstrap/dataTables.bootstrap.js). 
            // So when dropdowns used the scrollable div should be removed. 
            //"dom": "<'row'<'col-md-6 col-sm-12'l><'col-md-6 col-sm-12'f>r>t<'row'<'col-md-5 col-sm-12'i><'col-md-7 col-sm-12'p>>",

            "lengthMenu": [
                [5, 15, 20, -1],
                [5, 15, 20, "All"] // change per page values here
            ],

            // Or you can use remote translation file
            //"language": {
            //   url: '//cdn.datatables.net/plug-ins/3cfcc339e89/i18n/Portuguese.json'
            //},

            // set the initial value
            "pageLength": 5,

            "language": {
                "lengthMenu": " _MENU_ records"
            },
            "columnDefs": [{ // set default column settings
                'orderable': true,
                'targets': [0]
            }, {
                "searchable": true,
                "targets": [0]
            }],
            "order": [
                [0, "asc"]
            ] // set first column as a default sort by asc
        });

        var tableWrapper = $("#sample_editable_1_wrapper, #table2_wrapper, #table3_wrapper");

        var nEditing = null;
        var nNew = false;

        $("#sample_editable_1_new, #table2new, #table3new").click(function (e) {
            e.preventDefault();

            if (nNew && nEditing) {
                if (confirm("Previous row not saved. Do you want to save it ?")) {
                    saveRow(oTable, nEditing); // save
                    $(nEditing).find("td:first").html("Untitled");
                    nEditing = null;
                    nNew = false;

                } else {
                    oTable.fnDeleteRow(nEditing); // cancel
                    nEditing = null;
                    nNew = false;
                    
                    return;
                }
            }

            var aiNew = oTable.fnAddData(['', '', '', '', '', '']);
            var nRow = oTable.fnGetNodes(aiNew[0]);
            editRow(oTable, nRow);
            nEditing = nRow;
            nNew = true;
        });

        table.on('click', '.delete, .delete1, .delete2', function (e) {
            e.preventDefault();

            if (confirm("Are you sure to delete this row ?") == false) {
                return;
            }

            var nRow = $(this).parents('tr')[0];
            oTable.fnDeleteRow(nRow);
            alert("Deleted! Do not forget to do some ajax to sync with backend :)");
        });

        table.on('click', '.cancel', function (e) {
            e.preventDefault();
            if (nNew) {
                oTable.fnDeleteRow(nEditing);
                nEditing = null;
                nNew = false;
            } else {
                restoreRow(oTable, nEditing);
                nEditing = null;
            }
        });

        table.on('click', '.edit', function (e) {
            e.preventDefault();
            nNew = false;
            
            
           
            
            /* Get the row as a parent of the link that was clicked on */
            var nRow = $(this).parents('tr')[0];

            if (nEditing !== null && nEditing != nRow) {
                /* Currently editing - but not this row - restore the old before continuing to edit mode */
                restoreRow(oTable, nEditing);
                editRow(oTable, nRow);
                nEditing = nRow;
            } else if (nEditing == nRow && this.innerHTML == "Save") {
                /* Editing this row and want to save it */
                saveRow(oTable, nEditing);
                nEditing = null;
                alert("Updated! Do not forget to do some ajax to sync with backend :)");
            } else {
                /* No edit in progress - let's start one */
                editRow(oTable, nRow);
                nEditing = nRow;
            }
        });
    }

    return {

        //main function to initiate the module
        init: function () {
            handleTable();
        }

    };

}();

jQuery(document).ready(function() {
    TableDatatablesEditable.init();
});

我试图为每个表添加类delete1,delete和delete2,如您所见。而且我确信每个班级都在正确的地方

1 个答案:

答案 0 :(得分:0)

您正在选择3个表并以某种方式初始化它们:

oTable

您的dataTable变量:

  • 要么包含3个表的jQuery选择器(不能确定,因为在您的示例中没有editRow(oTable, nRow);函数的代码)。但是你正在使用像data这样的表,因此将整个3个表传递给你的编辑函数,这是完全错误的。
  • 要么只包含1个(第一个)表引用,那么后果很明显 - 您丢失了对其他表的引用,但无法访问它们。

基本上,您的方法与您的代码完全错误。你需要保留(或能够重建)你的控件和对象之间的连接,你试图控制。然后,您需要获取对象以控制事件处理程序内部并进一步传递。

可以通过不同的方式完成,下面的代码只是一个示例

如果每个表都有单独的控件集(例如,每个表旁边有3个“添加行”按钮),并且表本身及其控件都驻留在单独的容器中 - 您只需将引用存储在容器{{{ 1}}存储并从这里使用它,如:

// Initialization of all tables
$('table').each(function () {
    // Initializing table
    var $table = $(this).dataTable({/* options */});
    // Obtaining container 
    var $container = $table.closest('.container');
    // Storing table reference into container
    $container.data('table', table);
});

// Later in code 
$('.some-control').on('click', function () {
    // Obtaining container 
    var $container = $(this).closest('.container');
    // Obtaining table reference from container
    var $table = $container.data('table');
    // ... doing anything with our table 
});

如果您有一组控件 - 那么您需要一种方法来选择表格,然后在选择时您可以将对它的引用存储到变量中并将其用于处理。