本文介绍了一种使用ExtJS框架构建的高级查询界面，支持动态添加多种查询条件，包括字符串、日期、整数、浮点、布尔值和自定义选择列表，并能与服务器进行数据交互。该界面包含逻辑关系定义、多种运算符选择，并提供编辑器适配不同数据类型的录入。
把昨天做的高级查询界面完善了一下，支持动态添加多个查询条件、定义逻辑关系，支持整形、浮点、字符串、日期、布尔值、自定义选择列表的录入，通过Ext.data.JsonStore可方便的与服务器交互，具体不多说了，看下面示例，曾经做过的朋友不妨交流一下。
样图：
示例：
- <DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
- <html><head><title>XXX系统V1.0</title>
- <meta name="Author" contect="彭国辉">
- <meta name="Keywords" content="高级查询界面" />
- <meta name="Description" content="http://blog.youkuaiyun.com/nhconch" />
- <meta http-equiv="Content-Type" content="text/html; charset=utf8">
- <link rel="stylesheet" type="text/css" href="resources/css/ext-all.css">
- <script type="text/javascript" src="adapter/ext/ext-base.js"></script>
- <script type="text/javascript" src="ext-all.js"></script>
- <script type="text/javascript" src="source/locale/ext-lang-zh_CN.js"></script>
- <script type="text/javascript">
- Ext.BLANK_IMAGE_URL = 'resources/images/default/s.gif';
- Ext.onReady(function () {
- var dsPQ=new Ext.data.JsonStore({
- data:[],
- fields:["idx","relation","leftParenthesis","fieldname","operator","value","rightParenthesis"]
- });
- var fieldsDef = new Ext.data.JsonStore({
- fields: ['value','text','type','data'],
- data:[
- {value:'A.Billno',text:'字符串',type:'string'},
- {value:'A.Date',text:'日期',type:'date'},
- {value:'A.boolean',text:'布尔',type:'boolean'},
- {value:'A.int',text:'整形',type:'int'},
- {value:'A.float',text:'浮点',type:'float'},
- {value:'A.lookup',text:'Lookup',type:'lookup',data:[['AA','list1'],['BB','list2'],['CC','list3']]},
- {value:'A.datalist',text:'自定义列表',type:'lookup',data:[[10,'xxxx1'],[20,'xxxx2'],[30,'xxxx3'],[11,'xxxx11'],[21,'xxxx21'],[31,'xxxx31'],[12,'xxxx22'],[22,'xxxx22'],[32,'xxxx32'],[13,'xxxx13'],[23,'xxxx23'],[33,'xxxx33'],[14,'xxxx14'],[24,'xxxx24'],[34,'xxxx3'],[15,'xxxx15'],[25,'xxxx25'],[35,'xxxx35'],[16,'xxxx16'],[26,'xxxx26'],[36,'xxxx36']]}
- ]
- });
- /*
- 作者 : 彭国辉 2008-8-30
- 网站 : http://kacarton.yeah.net/
- 博客 : http://blog.youkuaiyun.com/nhconch
- 邮箱 : kacarton(a)sohu.com
- 文章为作者原创，转载前请先与本人联系，转载请注明文章出处、保留作者信息，谢谢支持！
- */
- var numericOp = datetimeOp = new Ext.data.SimpleStore({
- fields: ['value','text'],
- data : [['=','='],['<>','<>'],['<','<'],['<=','<='],['<','>'],['>=','>='],['is null','空白'],['is not null','非空白']]
- });
- var stringOp = new Ext.data.SimpleStore({
- fields: ['value','text'],
- data : [['=','='],['<>','<>'],['<','<'],['<','>'],
- ["like '|%'",'以...开头'],["like '%|'",'以...结尾'],["like '%|%'",'包含字符'],["not like '%|%'",'不包含字符'],
- ['is null','空白'],['is not null','非空白']]
- });
- var lookupOp = booleanOp = new Ext.data.SimpleStore({
- fields: ['value','text'],
- data : [['=','='],['<>','<>'],['is null','空白'],['is not null','非空白']]
- });
- var objGridTextEditor = new Ext.grid.GridEditor(new Ext.form.TextField());
- //var objGridMemoEditor = new Ext.grid.GridEditor(new Ext.form.TextArea());
- var objGridDateEditor = new Ext.grid.GridEditor(new Ext.form.DateField({format:'Y-m-d'}));
- var objGridIntegerEditor = new Ext.grid.GridEditor(new Ext.form.NumberField({allowBlank:false,allowNegative:false,allowDecimals:false}));
- var objGridFloatEditor = new Ext.grid.GridEditor(new Ext.form.NumberField({allowBlank:false,allowNegative:false}));
- var objGridBooleanEditor = new Ext.grid.GridEditor(new Ext.form.ComboBox({
- store: [[true,'是'],[false,'否']],
- mode: 'local',
- readOnly: true,
- triggerAction: 'all',
- allowBlank: false,
- editable: false,
- forceSelection: true,
- blankText:'请选择...'
- }));
- var objGridLookupEditor;
- function fileListChange(field,newValue,oldValue){
- //alert(field);
- }
- function findRecordValue(store,prop, propValue,field){
- var record;
- if(store.getCount() > 0){
- store.each(function(r){
- if(r.data[prop] == propValue){
- rrecord = r;
- return false;
- }
- });
- }
- return record ? record.data[field] : '';
- }
- function displayOperator(v){
- switch(v){
- case 'is null': return '空白';
- case 'is not null': return '非空白';
- case "like '|%'": return '以...开头';
- case "like '%|'": return '以...结尾';
- case "like '%|%'": return '包含字符';
- case "not like '%|%'": return '不包含字符';
- default: return v;
- }
- }
- function displayValue(v, params, record){
- var dataType = findRecordValue(fieldsDef,'value',record.get('fieldname'),'type');
- var operator = record.get('operator');
- if (operator=='is null'||operator=='is not null') return '';
- switch(dataType){
- case 'date': return v ? v.dateFormat('Y-m-d'): '';
- case 'boolean': return (v?'是':'否');
- case 'lookup': var data = findRecordValue(fieldsDef,'value',record.get('fieldname'),'data');
- for (var i=0; i<data.length; i++)
- if (v==data[i][0]) return data[i][1];
- //return data[v] + ','+data[v,0]+','+data[0,0];
- //return data[v,0]+','+data[0,0];
- /*case 'string':
- case 'int':
- case 'float':*/
- default: return v;
- }
- }
- var qRowData = Ext.data.Record.create([
- {name:'idx',type:'int'},
- {name:'relation',type:'string'},
- {name:'leftParenthesis',type:'string'},
- {name:'fieldname',type:'string'},
- {name:'operator',type:'string'},
- {name:'value',type:'string'},
- {name:'rightParenthesis',type:'string'}
- ]);
- var colM=new Ext.grid.ColumnModel([
- {
- header:"关系",
- dataIndex:"relation",
- width:50,
- renderer: function(v){return (v=='and'?'并且':'或者')},
- editor:new Ext.form.ComboBox({
- store: [['and','并且'],['or','或者']],
- mode: 'local',
- readOnly: true,
- triggerAction: 'all',
- allowBlank: false,
- //valueField: 'value',
- //displayField: 'text',
- editable: false,
- forceSelection: true,
- blankText:'请选择'
- })
- },{
- header:"括号",
- dataIndex:"leftParenthesis",
- width:40,
- editor:new Ext.form.ComboBox({
- store: ['(','((','((','(((','(((('],
- mode: 'local',
- triggerAction: 'all',
- valueField: 'value',
- displayField: 'text',
- editable: false
- })
- },{
- header:"字段名",
- dataIndex:"fieldname",
- width:130,
- //renderer: function(v, params, record){return record.data['fieldname']},
- renderer: function(v){return findRecordValue(fieldsDef,'value',v,'text');},
- editor:new Ext.form.ComboBox({
- store: fieldsDef,
- mode: 'local',
- triggerAction: 'all',
- valueField: 'value',
- displayField: 'text',
- editable: false,
- listeners:{change:fileListChange}
- })
- },{
- header:"运算符",
- width:80,
- dataIndex:"operator",
- renderer: displayOperator
- },{
- header:"内容",
- dataIndex:"value",
- width:130,
- renderer: displayValue
- },{
- header:"括号",
- width:40,
- dataIndex:"rightParenthesis",
- editor:new Ext.form.ComboBox({
- store: [')','))',')))','))))'],
- mode: 'local',
- triggerAction: 'all',
- valueField: 'value',
- displayField: 'text',
- editable: false
- })
- }
- ]);
- var grdDPQuery = new Ext.grid.EditorGridPanel({
- height:500,
- width:490,
- renderTo:"hello",
- cm:colM,
- sm:new Ext.grid.RowSelectionModel({singleSelect:false}),
- store:dsPQ,
- region:'center',
- border: false,
- enableColumnMove: false,
- enableHdMenu: false,
- loadMask: {msg:'加载数据...'},
- clicksToEdit:1,
- tbar:[
- {text:'添加',handler:function(){
- var count = dsPQ.getCount();
- var r = new qRowData({idx:dsPQ.getCount(),relation:'and',leftParenthesis:'',fieldname:'',operator:'=',value:'',rightParenthesis:''});
- dsPQ.commitChanges();
- dsPQ.insert(count,r);
- }
- },
- {text:'删除',handler:function(){
- //store = grid.getStore();
- var selections = grdDPQuery.getSelectionModel().getSelections();
- for(var i = 0; i < selections.length; i++){
- dsPQ.remove(selections[i]);
- }
- }
- },
- {text:'全部清除',handler:function(){dsPQ.removeAll();}},
- {text:'检查',handler:function(){if(checkFilter(grdDPQuery)) alert('检查通过！');}},
- {text:'显示内容',handler:function(){var pv = document.getElementById('preview'); pv.value=getFilter(grdDPQuery)}},
- {text:'显示文本',handler:function(){var pv = document.getElementById('preview'); pv.value=getFilterText(grdDPQuery)}}
- ],
- listeners: {
- afteredit: function(e){
- if (e.column==2/*e.field=='fieldname'*/){
- var oldDataType = findRecordValue(fieldsDef,'value',e.originalValue,'type');
- var newDataType = findRecordValue(fieldsDef,'value',e.value,'type');
- if (oldDataType!=newDataType){
- e.record.set('operator', '=');
- e.record.set('value', '');
- }
- //e.grid.colModel.setEditor(1, new Ext.grid.GridEditor(new Ext.form.DateField({format:'Y年m月d日'})));
- }
- },
- cellclick: function(grid, rowIndex, columnIndex, e){
- if (columnIndex!=3&&columnIndex!=4) return;
- var record = grid.getStore().getAt(rowIndex); // Get the Record
- var dataType = findRecordValue(fieldsDef,'value',record.get('fieldname'),'type');
- if (dataType=='') return;//未选定字段，退出
- if (columnIndex==3){//绑定运算符
- var grdEditor = grid.colModel.getCellEditor(columnIndex,rowIndex);
- if (grdEditor) grdEditor.destroy();
- var _store;
- switch(dataType){
- case 'string': _store = stringOp; break;
- case 'date': _store = datetimeOp; break;
- case 'boolean': _store = booleanOp; break;
- case 'int':
- case 'float': _store = numericOp; break;
- case 'lookup': _store = lookupOp; break;
- }
- grdEditor = new Ext.form.ComboBox({
- store: _store,
- mode: 'local',
- triggerAction: 'all',
- valueField: 'value',
- displayField: 'text',
- editable: false
- })
- grid.colModel.setEditor(columnIndex, new Ext.grid.GridEditor(grdEditor));
- }
- else if (columnIndex==4){//绑定编辑器
- var operator = record.get('operator');
- if (operator=='is null'||operator=='is not null'){
- grid.colModel.setEditor(columnIndex, null);
- return;
- }
- var grdEditor;
- switch(dataType){
- case 'string': grdEditor = objGridTextEditor; break;
- case 'date': grdEditor = objGridDateEditor; break;
- case 'boolean': grdEditor = objGridBooleanEditor; break;
- case 'int': grdEditor = objGridIntegerEditor; break;
- case 'float': grdEditor = objGridFloatEditor; break;
- case 'lookup':
- if (objGridLookupEditor) objGridLookupEditor.destroy();
- objGridLookupEditor = new Ext.grid.GridEditor(new Ext.form.ComboBox({
- store: findRecordValue(fieldsDef,'value',record.get('fieldname'),'data'),
- mode: 'local',
- readOnly: true,
- triggerAction: 'all',
- allowBlank: false,
- editable: false,
- forceSelection: true,
- blankText:'请选择...'
- }));
- grdEditor = objGridLookupEditor;
- break;
- }
- if (grid.colModel.getCellEditor(columnIndex,rowIndex)!=grdEditor){
- grid.colModel.setEditor(columnIndex, grdEditor);
- }
- }
- }
- }
- });
- function checkFilter(grid){
- var n = grid.store.getCount();
- var leftPLen = 0;
- var rightPLen = 0;
- for (var i=0; i<n; i++){
- var record = grid.store.getAt(i);
- if (record.get('fieldname')==''){
- grid.getSelectionModel().selectRow(i);
- Ext.Msg.alert("错误", "请选择查询字段。");
- return false;
- }
- leftPLen += record.get('leftParenthesis').length;
- rightPLen += record.get('rightParenthesis').length;
- switch(record.get('operator')){
- case "like '|%'":
- case "like '%|'":
- case "like '%|%'":
- case "not like '%|%'":
- if (record.get('value')==''){
- grid.getSelectionModel().selectRow(i);
- Ext.Msg.alert("错误", "请输入内容。");
- return false;
- }
- case '=':
- case '<>':
- case '<':
- case '>':
- case '<=':
- case '>=':
- var dataType = findRecordValue(fieldsDef,'value',record.get('fieldname'),'type');
- if ((dataType=='lookup'||dataType=='date')&&record.get('value')==''){
- grid.getSelectionModel().selectRow(i);
- Ext.Msg.alert("错误", "请输入内容。");
- return false;
- }
- }
- }
- if (leftPLen!=rightPLen){
- Ext.Msg.alert("错误", "左括号与右括号数量不匹配，请检查。");
- return false;
- }
- return true;
- }
- function getFilter(grid){
- if (!checkFilter(grid)) return "";
- var s = [];
- var n = grid.store.getCount();
- for (var i=0; i<n; i++){
- var record = grid.store.getAt(i);
- if (i>0) s.push(record.get('relation'));
- s.push(record.get('leftParenthesis'));
- s.push(record.get('fieldname'));
- var operator = record.get('operator');
- switch(operator){
- case "like '|%'":
- case "like '%|'":
- case "like '%|%'":
- case "not like '%|%'":
- s.push(operator.replace(//|/g, record.get('value').replace(//'/g,"''").replace(//%/g,"!%")));//for sql server
- break;
- case "is null":
- case "is not null":
- s.push(operator);
- break;
- default:
- s.push(operator);
- var dataType = findRecordValue(fieldsDef,'value',record.get('fieldname'),'type');
- switch(dataType){
- case 'lookup':
- var d = findRecordValue(fieldsDef,'value',record.get('fieldname'),'data');
- if (typeof d[0][0] !='string'){
- s.push(record.get('value'));
- break;
- }
- case 'string':
- s.push("'" + record.get('value').replace(//'/g,"''") + "'");
- break;
- case 'date':
- s.push("'" + record.get('value').dateFormat('Y-m-d') + "'");
- break;
- case 'boolean':
- s.push(record.get('value')?"1":"0");//for sql server
- break;
- default:
- s.push(record.get('value'));
- break;
- }
- break;
- }
- s.push(record.get('rightParenthesis'));
- }
- return s.join(' ');
- }
- function getFilterText(grid){
- if (!checkFilter(grid)) return "";
- var s = [];
- var n = grid.store.getCount();
- for (var i=0; i<n; i++){
- var record = grid.store.getAt(i);
- if (i>0) s.push(record.get('relation')=='and'?'并且':'或者');
- s.push(record.get('leftParenthesis'));
- s.push(findRecordValue(fieldsDef,'value',record.get('fieldname'),'text'));
- var operator = record.get('operator');
- switch(operator){
- case "like '|%'":
- s.push("以");
- s.push('"' + record.get('value') + '"');
- s.push("开头");
- break;
- case "like '%|'":
- s.push("以");
- s.push('"' + record.get('value') + '"');
- s.push("结尾");
- break;
- case "like '%|%'":
- s.push("包含字符");
- s.push('"' + record.get('value') + '"');
- break;
- case "not like '%|%'":
- s.push("不包含字符");
- s.push('"' + record.get('value') + '"');
- break;
- case "is null":
- s.push("等于 空白");
- break;
- case "is not null":
- s.push("等于 非空白");
- break;
- default:
- s.push(operator);
- var dataType = findRecordValue(fieldsDef,'value',record.get('fieldname'),'type');
- switch(dataType){
- case 'lookup':
- var d = findRecordValue(fieldsDef,'value',record.get('fieldname'),'data');
- for (var j=0; j<d.length; j++)
- if (record.get('value')==d[j][0]){
- s.push('"'+d[j][1]+'"');
- break;
- }
- break;
- case 'string':
- s.push('"' + record.get('value') + '"');
- break;
- case 'date':
- s.push(record.get('value').dateFormat('Y-m-d'));
- break;
- case 'boolean':
- s.push(record.get('value')?"是":"否");
- break;
- default:
- s.push(record.get('value'));
- break;
- }
- break;
- }
- s.push(record.get('rightParenthesis'));
- }
- return s.join(' ');
- }
- });
- </script>
- </head><body><div id="hello"></div>
- <textarea id=preview rows=5 cols=70></textarea>
- </body></html>
<script type="text/javascript"> </script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script>
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