easyui plugin——etreegrid：CRUD Treegrid

昨天写了一个ko+easyui的同样的实现，感觉写的太乱，用起来十分麻烦，于是今天照着edatagrid，写了一个etreegrid，这样再用ko绑定就方便多了。

使用很简单,$(tableId).etreegrid({idField:''parentIdField:'',treeField:'',saveUrl:'',deleteUrl:''});

还支持一些事件，onSave,onBeforeSave,onEdit,onAdd,onRemove；

Url可以不指定，指定Data即可。　　

 

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/**  * etreegrid - jQuery EasyUI  *  * Licensed under the GPL:  *   http://www.gnu.org/licenses/gpl.txt  *  * Copyright 2013 maddemon [ zhengliangjun@gmail.com ]  *  * Dependencies:  *   treegrid  *   messager  *  */ (function ($) {       function buildGrid(target) {         var opts = $.data(target, 'etreegrid').options;         $(target).treegrid($.extend({}, opts, {             onDblClickCell: function (field, row) {                 if (opts.editing) {                     $(this).etreegrid("editRow", row);                     focusEditor(field);                 }             },             onClickCell: function (field, row) {                 if (opts.editId >= 0) {                     if (!trySaveRow()) {                         focusEditor(field);                         return;                     }                 }             },             onAfterEdit: function (row, changes) {                 //opts.editId = undefined;                 var url = row.isNewRecord ? opts.saveUrl : opts.updateUrl || opts.saveUrl;                 if (url) {                     $.post(url, row).done(function (json, statusText, xhr) {                         if (opts.editId === 0) {                             json = eval("(" + json + ")");//注意这个地方，接口返回的数据的格式，可以根据自己的情况修改                             $(target).treegrid("remove", opts.editId);                             var data = json.data;                             //console.log(data);                             $(target).treegrid("append", { parent: data[opts.parentIdField], data: [data] });                         } else {                             //refresh                             $(target).treegrid("refresh", row[opts.idField]);                         }                         opts.editId = undefined;                     }).error(function (xhr) {                         var result = eval("(" + xhr.responseText + ")");                         $.messager.alert("失败", result.message || result, "warning");                     });                     opts.onSave.call(target, row);                 } else {                     opts.onSave.call(target, row);                 }                 if (opts.onAfterEdit) opts.onAfterEdit.call(target, row);             },             onCancelEdit: function (row) {                 opts.editId = undefined;                 if (row.isNewRecord) {                     $(this).treegrid("remove", row[opts.idField]);                 }                 if (opts.onCancelEdit) opts.onCancelEdit.call(target, row);             },             onBeforeLoad: function (row, param) {                 if (opts.onBeforeLoad.call(target, row, param) == false) {                     return false;                 };                 $(this).treegrid("rejectChanges");             }         }));           function trySaveRow() {             if (!$(target).treegrid("validateRow", opts.editId)) {                 $(target).treegrid("select", opts.editId);                 return false;             }             if (opts.onBeforeSave.call(this, opts.editId) == false) {                 setTimeout(function () {                     $(target).treegrid('select', opts.editId);                 }, 0);                 return false;             }             $(target).treegrid('endEdit', opts.editId);             return true;         }           function focusEditor(field) {             var editor = $(target).treegrid('getEditor', { id: opts.editId, field: field });             if (editor) {                 editor.target.focus();             } else {                 var editors = $(target).treegrid('getEditors', opts.editId);                 if (editors.length) {                     editors[0].target.focus();                 }             }         }     }       $.fn.etreegrid = function (options, param) {         if (typeof (options) == "string") {             var method = $.fn.etreegrid.methods[options];             if (method) {                 return method(this, param);             } else {                 return this.treegrid(options, param);             }         }           options = options || {};         return this.each(function () {             var state = $.data(this, "etreegrid");             if (state) {                 $.extend(state.options, options);             } else {                 $.data(this, "etreegrid", { options: $.extend({}, $.fn.etreegrid.defaults, $.fn.etreegrid.parseOptions(this), options) });             }             ;             buildGrid(this);           });     };       $.fn.etreegrid.parseOptions = function (target) {         return $.extend({}, $.fn.treegrid.parseOptions(target), {});     };       $.fn.etreegrid.methods = {         options: function (jq) {             var opts = $.data(jq[0], "etreegrid").options;             return opts;         },         enableEditing: function (jq) {             return jq.each(function () {                 var opts = $.data(this, "etreegrid").options;                 opts.editing = true;             });         },         disableEditing: function (jq) {             return jq.each(function () {                 var opts = $.data(this, "etreegrid").options;                 opts.editing = false;             });         },         editRow: function (jq, row) {             return jq.each(function () {                 var dg = $(this);                 var opts = $.data(this, "etreegrid").options;                 var rowId = row[opts.idField];                 var editId = opts.editId;                 if (editId != rowId) {                     if (dg.treegrid("validateRow", editId)) {                         if (editId >= 0) {                             if (opts.onBeforeSave.call(this, editId) == false) {                                 setTimeout(function () {                                     dg.treegrid("select", editId);                                 }, 0);                                 return;                             }                         }                         dg.treegrid("endEdit", editId);                         dg.treegrid("beginEdit", rowId);                         opts.editId = rowId;                         var node = dg.treegrid("find", rowId);                         opts.onEdit.call(this, node);                     } else {                         setTimeout(function () {                             dg.treegrid("select", editId);                         }, 0);                     }                 }             });         },         addRow: function (jq) {             return jq.each(function () {                 var dg = $(this);                 var opts = $.data(this, "etreegrid").options;                 var editId = opts.editId;                 if (opts.editId >= 0) {                     if (!dg.treegrid("validateRow", editId)) {                         dg.treegrid("select", editId);                         return;                     }                     if (opts.onBeforeSave.call(this, opts.editId) == false) {                         setTimeout(function () {                             dg.treegrid('select', opts.editId);                         }, 0);                         return;                     }                     dg.treegrid('endEdit', opts.editId);                 } else {                     var selected = dg.treegrid("getSelected");                     var parentId = selected ? selected[opts.idField] : 0;                     var newRecord = {};                     newRecord[opts.idField] = 0;                     newRecord[opts.parentIdField] = parentId;                     console.log(newRecord)                     dg.treegrid("append", { parent: parentId, data: [newRecord] });                     if (parentId > 0) {                         var children = dg.treegrid("getChildren");                     }                     opts.editId = 0;                     dg.treegrid("beginEdit", opts.editId);                     dg.treegrid("select", opts.editId);                   }             });         },         saveRow: function (jq) {             return jq.each(function () {                 var dg = $(this);                 var opts = $.data(this, 'etreegrid').options;                 if (opts.editId >= 0) {                     if (!dg.treegrid("validateRow", opts.editId)) {                         dg.treegrid("select", opts.editId);                         return;                     }                     if (opts.onBeforeSave.call(this, opts.editId) == false) {                         setTimeout(function () {                             dg.treegrid('select', opts.editId);                         }, 0);                         return;                     }                     $(this).treegrid('endEdit', opts.editId);                 }             });         },         cancelRow: function (jq) {             return jq.each(function () {                 var rowId = $(this).etreegrid('options').editId;                 $(this).treegrid('cancelEdit', rowId);             });         },         removeRow: function (jq) {             return jq.each(function () {                 var dg = $(this);                 var opts = $.data(this, 'etreegrid').options;                 var row = dg.treegrid('getSelected');                 if (!row) return;                 if (row.isNewRecord) {                     dg.treegrid("remove", row[opts.idField]);                     return;                 }                 $.messager.confirm("确认", "确认删除这条数据吗？", function (r) {                     if (!r) return;                     var idValue = row[opts.idField];                     if (opts.deleteUrl) {                         $.post(opts.deleteUrl, { id: idValue }).done(function (json) {                             dg.treegrid("remove", idValue);                             opts.onRemove.call(dg[0], json, row);                         }).error(function (xhr) {                             var json = eval('(' + xhr.responseText + ')');                             $.messager.alert('错误', json.message || json, "warning");                         });                     } else {                         dg.datagrid('cancelEdit', idValue);                         dg.datagrid('deleteRow', idValue);                         opts.onRemove.call(dg[0], row);                     }                 });             });         }     };       $.fn.etreegrid.defaults = $.extend({}, $.fn.treegrid.defaults, {         editing: true,         editId: undefined,         messager: {},           url: null,         saveUrl: null,         updateUrl: null,         deleteUrl: null,           onAdd: function (row) { },         onEdit: function (row) { },         onBeforeSave: function (index) { },         onSave: function (row) { },         onRemove: function (row) { },     }); })(jQuery);