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,$(tableId).etreegrid({idField:''parentIdField:'',treeField:'',saveUrl:'',deleteUrl:''});
还支持一些事件，onSave,onBeforeSave,onEdit,onAdd,onRemove；
Url可以不指定，指定Data即可。
/**
* etreegrid - jQuery EasyUI
*
* Licensed under the GPL:
* http://www.gnu.org/licenses/gpl.txt
*
* Copyright 2013 maddemon [ zhengliangjun@gmail.com ]
*
* Dependencies:
* treegrid
* messager
*
*/
(function ($) {
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);
