在这里找到了部分解决方案:https://forums.opentext.com/forums/developer/discussion/61283/allow-multi-value-for-cascading-parameter
在这里(感谢谷歌翻译^^):https://www.developpez.net/forums/d1402270/logiciels/solutions-d-entreprise/business-intelligence/birt/birt-4-3-1-multi-value-cascade-parameters/
步骤:
更改“\birt\webcontent\birt\ajax\ui\dialog\BirtParameterDialog.js”文件内容(在其中一个链接中有一个文件可供下载以进行替换,但如果它死了,我将共享 2 个 sn-ps从它发生变化的地方:
__refresh_cascade_select : function( element )
{
var matrix = new Array( );
var m = 0;
for( var i = 0; i < this.__cascadingParameter.length; i++ )
{
for( var j = 0; j < this.__cascadingParameter[i].length; j++ )
{
var paramName = this.__cascadingParameter[i][j].name;
if( paramName == this.__isnull )
paramName = this.__cascadingParameter[i][j].value;
if( paramName == element.id.substr( 0, element.id.length - 10 ) )
{
//CHANGE//
//The two way work (String(selectedValue) or Array(SelectedValueArray))
var l = 0;
var isFirstElement = true;
var selectedValue = "";
var selectedValueArray = new Array();
for(var test = 0; test<element.options.length;test++){
if(element.options[test].selected){
if(isFirstElement){
isFirstElement = false;
selectedValue = element.options[test].value;
}
else{
selectedValue = selectedValue+","+element.options[test].value;
}
selectedValueArray[l] = element.options[test].value;
l++;
}
}
//CHANGE//
var tempText = element.options[element.selectedIndex].text;
var tempValue = element.options[element.selectedIndex].value;
// Null Value Parameter
if ( tempValue == Constants.nullValue )
{
this.__cascadingParameter[i][j].name = this.__isnull;
this.__cascadingParameter[i][j].value = paramName;
}
else if( tempValue == '' )
{
if( tempText == "" )
{
var target = element;
target = target.parentNode;
var oInputs = target.getElementsByTagName( "input" );
if( oInputs.length >0 && oInputs[1].value != Constants.TYPE_STRING )
{
// Only String parameter allows blank value
alert( birtUtility.formatMessage( Constants.error.parameterNotAllowBlank, paramName ) );
this.__clearSubCascadingParameter( this.__cascadingParameter[i], j );
return;
}
else
{
// Blank Value
this.__cascadingParameter[i][j].name = paramName;
this.__cascadingParameter[i][j].value = tempValue;
}
}
else
{
// Blank Value
this.__cascadingParameter[i][j].name = paramName;
this.__cascadingParameter[i][j].value = tempValue;
}
}
else
{
this.__cascadingParameter[i][j].name = paramName;
//CHANGE//
//The two way work (String(selectedValue) or Array(SelectedValueArray))
this.__cascadingParameter[i][j].value = selectedValueArray;
//CHANGE//
}
for( var m = 0; m <= j; m++ )
{
if( !matrix[m] )
{
matrix[m] = {};
}
matrix[m].name = this.__cascadingParameter[i][m].name;
matrix[m].value = this.__cascadingParameter[i][m].value;
}
this.__pendingCascadingCalls++;
birtEventDispatcher.broadcastEvent( birtEvent.__E_CASCADING_PARAMETER, matrix );
}
}
}
},
还有这个:
// exist select control and input text/password
// compare the parent div offsetTop
if( oFirstITC.parentNode && oFirstST.parentNode )
{
// Bugzilla 265615: need to use cumulative offset for special cases
// where one element is inside a group container
var offsetITC = Position.cumulativeOffset( oFirstITC );
var offsetST = Position.cumulativeOffset( oFirstST );
// compare y-offset first, then x-offset to determine the visual order
if( ( offsetITC[1] > offsetST[1] ) || ( offsetITC[1] == offsetST[1] && offsetITC[0] > offsetST[0] ) )
{
oFirstST.focus( );
}
else
{
oFirstITC.focus( );
}
}
.js 更改后,级联参数可以在所有级别上进行多选。
示例:
第一个数据集“DS_country”查询:
select CLASSICMODELS.OFFICES.COUNTRY
from CLASSICMODELS.OFFICES
第二个数据集“DS_office”查询:
select CLASSICMODELS.OFFICES.OFFICECODE
from CLASSICMODELS.OFFICES
where CLASSICMODELS.OFFICES.COUNTRY IN ('DS_country')
创建数据集后,我们可以制作级联报表参数 CRP_country 和 CRP_office(请记住,UI 不允许您在上层选择“允许多个值”,但我们可以在属性编辑器中更改参数后通过转到高级选项卡并将“标量参数类型”属性值更改为“多值”)
剩下的唯一事情就是选择较低级别的级联参数(在我们的示例中为 CRP_office),然后转到脚本选项卡并将其添加到“beforeOpen”:
// Do that if your selections are in String type.
var stringArray = params["CRP_country"].value.toString().split(",");
var result = "";
for(var i =0 ; i < stringArray.length ; i++){
if(i==0){
result = "'"+stringArray[i]+"'";
}
else{
result = result+",'"+stringArray[i]+"'";
}
}
// For String
this.queryText = this.queryText.replace("'DS_country'", result);
//For integer (the first part is useless)
//this.queryText = this.queryText.replace("'DS_country'",
params["CRP_country"].value);