如何将自定义 sortFunction 与 Grails gui:datatable 标记一起使用?
我在 Grails 中有一个数据表,其中有几个可排序的列。不幸的是,默认情况下排序区分大小写,因此“Zed”显示在“alice”之前。所以我想添加一个自定义的不区分大小写的排序功能。我将首先以这种方式对用户名列进行排序。
我已在 http://developer.yahoo.com/yui/datatable/< 阅读了有关 sortOptions 和 sortFunction 的信息/a> 但我似乎无法让它工作。
我将以下 JavaScript 添加到 list.gsp:
var caseInsensitiveSortFunction = function(a, b, desc, field) {
// See http://developer.yahoo.com/yui/datatable/ and look for 'sortFunction'
// Set this function name as the sortFunction option
// Deal with empty values
if (!YAHOO.lang.isValue(a)) {
return (!YAHOO.lang.isValue(b)) ? 0 : 1;
} else if (!YAHOO.lang.isValue(b)) {
return -1;
}
return YAHOO.util.Sort.compare(String(a).toLowerCase(), String(b).toLowerCase(), desc);
};
这是同一页面上的数据表定义:
<gui:dataTable id="userTable"
controller="user" action="listJSON"
rowsPerPage="20"
sortedBy="username"
columnDefs="[
[key:'username', label:'Username', resizeable: false, sortable: true, sortOptions: { sortFunction: 'caseInsensitiveSortFunction' }],
[key:'email', label:'Email', resizeable: false, sortable: true],
[key:'firstName', label:'First Name', resizeable: false, sortable: true],
[key:'lastName', label:'Last Name', resizeable: false, sortable: true],
[key:'enabled', label:'Enabled', resizeable: false, sortable: true],
[key:'accountLocked', label:'Locked', resizeable: false, sortable: true],
[key:'roleDescription', label:'Role', resizeable: false, sortable: true]
]"
draggableColumns="true"
rowClickNavigation="true"
paginatorConfig="[
template:'{FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {CurrentPageReport}',
pageReportTemplate:'{totalRecords} total record(s)',
alwaysVisible:true,
containers:'dt-paginator'
]"/>
<div id="dt-paginator" class="yui-skin-sam yui-pg-container"></div>
将“用户名”键更改为以下内容(无引号)没有帮助。
[key:'username', label:'Username', resizeable: false, sortable: true, sortOptions: { sortFunction: caseInsensitiveSortFunction }],
两种方法都会创建以下源。请注意,用户名的 sortOptions 为空。
<div id="dt_div_userTable"></div>
<script>
YAHOO.util.Event.onDOMReady(function () {
var DataSource = YAHOO.util.DataSource,
DataTable = YAHOO.widget.DataTable,
Paginator = YAHOO.widget.Paginator;
var userTable_ds = new DataSource('/admin/gpupUser/listJSON?');
userTable_ds.responseType = DataSource.TYPE_JSON;
userTable_ds.connMethodPost=true;
userTable_ds.responseSchema = {
resultsList : 'results',
fields : ["username","email","firstName","lastName","enabled","accountLocked","roleDescription","dataUrl"],
metaFields : {
totalRecords: 'totalRecords'
}
};
userTable_ds.doBeforeCallback = function(oRequest, oFullResponse, oParsedResponse, oCallback) {
return GRAILSUI.util.replaceDateStringsWithRealDates(oParsedResponse);
};
var userTable_paginator = new Paginator(
{'template': '{FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {CurrentPageReport}',
'pageReportTemplate': '{totalRecords} total record(s)',
'alwaysVisible': true,
'containers': 'dt-paginator',
'rowsPerPage': 20}
);
var registerEditorListener = function(editor, field, url,successCallback,failureCallback) {
editor.subscribe("saveEvent", function(oArgs) {
GRAILSUI.userTable.loadingDialog.show();
var editorCallback = {
success: successCallback,
failure: function(o) {
// revert the cell value
GRAILSUI.userTable.updateCell(oArgs.editor.getRecord(), field, oArgs.oldData);
// alert user
if (failureCallback)
failureCallback(o);
else
alert('Received an error during edit: ' + o.responseText);
}
};
YAHOO.util.Connect.asyncRequest('POST', url, editorCallback, 'id=' + oArgs.editor.getRecord().getData('id') + '&field=' + field + '&newValue=' + oArgs.newData);
});
};
var myColumnDefs = [{'key': 'username',
'label': 'Username',
'resizeable': false,
'sortable': true,
'sortOptions': }, {'key': 'email',
'label': 'Email',
'resizeable': false,
'sortable': true}, {'key': 'firstName',
'label': 'First Name',
'resizeable': false,
'sortable': true}, {'key': 'lastName',
'label': 'Last Name',
'resizeable': false,
'sortable': true}, {'key': 'enabled',
'label': 'Enabled',
'resizeable': false,
'sortable': true}, {'key': 'accountLocked',
'label': 'Locked',
'resizeable': false,
'sortable': true}, {'key': 'roleDescription',
'label': 'Role',
'resizeable': false,
'sortable': true}, {'key': 'dataUrl',
'type': 'dataDrillDown',
'hidden': true}];
GRAILSUI.userTable = new GRAILSUI.DataTable('dt_div_userTable', myColumnDefs, userTable_ds, '', {
initialRequest : 'max=20&offset=0&sort=username&order=asc&',
paginator : userTable_paginator,
dynamicData : true,
sortedBy : {key: "username", dir: YAHOO.widget.DataTable.CLASS_ASC},
'draggableColumns': true,
'selectionMode': 'single',
'rowClickNavigate': false,
'rowClickMode': 'navigate',
'formatter': 'text'
});
// Update totalRecords on the fly with value from server
GRAILSUI.userTable.handleDataReturnPayload = function(oRequest, oResponse, oPayload) {
oPayload.totalRecords = oResponse.meta.totalRecords;
return oPayload;
};
// Set up editing flow
var highlightEditableCell = function(oArgs) {
var elCell = oArgs.target;
if(YAHOO.util.Dom.hasClass(elCell, "yui-dt-editable")) {
this.highlightCell(elCell);
}
};
GRAILSUI.userTable.subscribe("cellMouseoverEvent", highlightEditableCell);
GRAILSUI.userTable.subscribe("cellMouseoutEvent", GRAILSUI.userTable.onEventUnhighlightCell);
GRAILSUI.userTable.subscribe("cellClickEvent", GRAILSUI.userTable.onEventShowCellEditor);
});
</script>
<div id="dt-paginator" class="yui-skin-sam yui-pg-container"></div>
当配置为标签时,有什么方法可以让数据表使用自定义 sortFunction 吗?
I have a datatable in Grails with several sortable columns. Unfortunately, the sort is case-sensitive by default, such that "Zed" is shown before "alice". So I want to add a custom case-insensitive sort function. I'll start by sorting the username column in this manner.
I have read about the sortOptions and sortFunction at http://developer.yahoo.com/yui/datatable/ but I can't seem to get it to work.
I added the following JavaScript to list.gsp:
var caseInsensitiveSortFunction = function(a, b, desc, field) {
// See http://developer.yahoo.com/yui/datatable/ and look for 'sortFunction'
// Set this function name as the sortFunction option
// Deal with empty values
if (!YAHOO.lang.isValue(a)) {
return (!YAHOO.lang.isValue(b)) ? 0 : 1;
} else if (!YAHOO.lang.isValue(b)) {
return -1;
}
return YAHOO.util.Sort.compare(String(a).toLowerCase(), String(b).toLowerCase(), desc);
};
And here is the datatable definition on that same page:
<gui:dataTable id="userTable"
controller="user" action="listJSON"
rowsPerPage="20"
sortedBy="username"
columnDefs="[
[key:'username', label:'Username', resizeable: false, sortable: true, sortOptions: { sortFunction: 'caseInsensitiveSortFunction' }],
[key:'email', label:'Email', resizeable: false, sortable: true],
[key:'firstName', label:'First Name', resizeable: false, sortable: true],
[key:'lastName', label:'Last Name', resizeable: false, sortable: true],
[key:'enabled', label:'Enabled', resizeable: false, sortable: true],
[key:'accountLocked', label:'Locked', resizeable: false, sortable: true],
[key:'roleDescription', label:'Role', resizeable: false, sortable: true]
]"
draggableColumns="true"
rowClickNavigation="true"
paginatorConfig="[
template:'{FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {CurrentPageReport}',
pageReportTemplate:'{totalRecords} total record(s)',
alwaysVisible:true,
containers:'dt-paginator'
]"/>
<div id="dt-paginator" class="yui-skin-sam yui-pg-container"></div>
Changing the 'username' key to the following (sans quotes) does not help.
[key:'username', label:'Username', resizeable: false, sortable: true, sortOptions: { sortFunction: caseInsensitiveSortFunction }],
Both approaches create the following source. Note that the sortOptions for the username is blank.
<div id="dt_div_userTable"></div>
<script>
YAHOO.util.Event.onDOMReady(function () {
var DataSource = YAHOO.util.DataSource,
DataTable = YAHOO.widget.DataTable,
Paginator = YAHOO.widget.Paginator;
var userTable_ds = new DataSource('/admin/gpupUser/listJSON?');
userTable_ds.responseType = DataSource.TYPE_JSON;
userTable_ds.connMethodPost=true;
userTable_ds.responseSchema = {
resultsList : 'results',
fields : ["username","email","firstName","lastName","enabled","accountLocked","roleDescription","dataUrl"],
metaFields : {
totalRecords: 'totalRecords'
}
};
userTable_ds.doBeforeCallback = function(oRequest, oFullResponse, oParsedResponse, oCallback) {
return GRAILSUI.util.replaceDateStringsWithRealDates(oParsedResponse);
};
var userTable_paginator = new Paginator(
{'template': '{FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {CurrentPageReport}',
'pageReportTemplate': '{totalRecords} total record(s)',
'alwaysVisible': true,
'containers': 'dt-paginator',
'rowsPerPage': 20}
);
var registerEditorListener = function(editor, field, url,successCallback,failureCallback) {
editor.subscribe("saveEvent", function(oArgs) {
GRAILSUI.userTable.loadingDialog.show();
var editorCallback = {
success: successCallback,
failure: function(o) {
// revert the cell value
GRAILSUI.userTable.updateCell(oArgs.editor.getRecord(), field, oArgs.oldData);
// alert user
if (failureCallback)
failureCallback(o);
else
alert('Received an error during edit: ' + o.responseText);
}
};
YAHOO.util.Connect.asyncRequest('POST', url, editorCallback, 'id=' + oArgs.editor.getRecord().getData('id') + '&field=' + field + '&newValue=' + oArgs.newData);
});
};
var myColumnDefs = [{'key': 'username',
'label': 'Username',
'resizeable': false,
'sortable': true,
'sortOptions': }, {'key': 'email',
'label': 'Email',
'resizeable': false,
'sortable': true}, {'key': 'firstName',
'label': 'First Name',
'resizeable': false,
'sortable': true}, {'key': 'lastName',
'label': 'Last Name',
'resizeable': false,
'sortable': true}, {'key': 'enabled',
'label': 'Enabled',
'resizeable': false,
'sortable': true}, {'key': 'accountLocked',
'label': 'Locked',
'resizeable': false,
'sortable': true}, {'key': 'roleDescription',
'label': 'Role',
'resizeable': false,
'sortable': true}, {'key': 'dataUrl',
'type': 'dataDrillDown',
'hidden': true}];
GRAILSUI.userTable = new GRAILSUI.DataTable('dt_div_userTable', myColumnDefs, userTable_ds, '', {
initialRequest : 'max=20&offset=0&sort=username&order=asc&',
paginator : userTable_paginator,
dynamicData : true,
sortedBy : {key: "username", dir: YAHOO.widget.DataTable.CLASS_ASC},
'draggableColumns': true,
'selectionMode': 'single',
'rowClickNavigate': false,
'rowClickMode': 'navigate',
'formatter': 'text'
});
// Update totalRecords on the fly with value from server
GRAILSUI.userTable.handleDataReturnPayload = function(oRequest, oResponse, oPayload) {
oPayload.totalRecords = oResponse.meta.totalRecords;
return oPayload;
};
// Set up editing flow
var highlightEditableCell = function(oArgs) {
var elCell = oArgs.target;
if(YAHOO.util.Dom.hasClass(elCell, "yui-dt-editable")) {
this.highlightCell(elCell);
}
};
GRAILSUI.userTable.subscribe("cellMouseoverEvent", highlightEditableCell);
GRAILSUI.userTable.subscribe("cellMouseoutEvent", GRAILSUI.userTable.onEventUnhighlightCell);
GRAILSUI.userTable.subscribe("cellClickEvent", GRAILSUI.userTable.onEventShowCellEditor);
});
</script>
<div id="dt-paginator" class="yui-skin-sam yui-pg-container"></div>
Is there any way to get the datatable to use a custom sortFunction when configured as a tag?
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在
listJSON
操作中,将ignoreCase: true
参数添加到list()
。请参阅doc。这可能是唯一简单的方法。如果您要支持分页,则无法将完全自定义的函数从 Javascript 级别推送到数据库级别 - 自定义函数将仅对当前页面进行排序,但分页将基于默认(按
id
)排序。换句话说,自定义函数对于不超过 1 页的表格可以正常工作。如果您在
listJSON
操作中使用Criteria
或 SQL,您可以在一定程度上自定义排序 - 但您仍然仅限于 Hibernate 或 SQL等级。In
listJSON
action, addignoreCase: true
parameter tolist()
. See doc. It's probably the only easy way.You cannot push a totally custom function from Javascript level to database level, if you're going to support paging - custom function will sort current page only, but paging will be based on default (by
id
) ordering. In other words, custom function works correctly for no more then 1-page tables.You can customize sorting to certain extent if you use a
Criteria
or SQL inlistJSON
action - but still, you're limited to Hibernate or SQL level.在深入研究代码库后,我终于意识到排序是在服务器端完成的,因此我能够在那里解决问题。
After digging into the code base, I finally realized that the sorting was being done on the server side, so I was able to address the issue there.