Question

我有一个绑定到cfc的网格，填充了id列和checkbox（boolean）列。 onLoad，我想得到一个ID值列表，但只有那些具有checkbox = 1的ID值这是工作代码，得到了Jan S的大力帮助

<script language="JavaScript">

function init(){
  var grid = ColdFusion.Grid.getGridObject('testgrid'); 
  var gs = grid.getStore();
  var records = gs.getRange();
  var filteredRecords = [];

  for (i = 0; i < records.length; i++) {
  // note: for CF, you MUST capitalize grid header names
  if (records[i].get('SELECT') === 1) {
    var thisID = records[i].get('ID');
    filteredRecords.push(thisID);
      }
    }
  document.getElementById('idList').value=filteredRecords;  
}

ColdFusion.Event.registerOnLoad(init,null,false,true);

</script>

<cfset items=QueryNew("id,Description,Select")> 
<cfset Temp=QueryAddRow(items,1)>
<cfset Temp=QuerySetCell(items,"id","11")>  
<cfset Temp=QuerySetCell(items,"Description","Some item")>  
<cfset Temp=QuerySetCell(items,"Select",1)>  
<cfset Temp=QueryAddRow(items)>
<cfset Temp=QuerySetCell(items,"id","22")>  
<cfset Temp=QuerySetCell(items,"Description","Some other item")>  
<cfset Temp=QuerySetCell(items,"Select",1)>  
<cfset Temp=QueryAddRow(items)>
<cfset Temp=QuerySetCell(items,"id","33")>  
<cfset Temp=QuerySetCell(items,"Description","A third item")>  
<cfset Temp=QuerySetCell(items,"Select",0)> 

<cfform>
<cfgrid name="testgrid" format="html" query="items">
<cfgridcolumn name="id" header="ID" select="no">
<cfgridcolumn name="Description" header="Description" select="no">
<cfgridcolumn name = "Select" header="Select" select="yes" type="boolean">
</cfgrid>
<br>
 <!--- populate this with list of ID's having the checkbox checked, here: 11,22 --->
<input type="text" name="idList" id="idList"> <input type="button" name="getList" value="Get List" onClick="init()">
</cfform>

基本上我需要将这个SQL语句翻译成AJAX：

select stringColumn where booleanColumn = 1 from myGrid

我正在使用Cold Fusion 9，它基于js ext 3.1我相信

Answer 1

从另一个字段为1的所有记录中获取包含所有字段的数组：

isData.on('load', function(store, records){
    // create a new array with all records where the 'booleanColumn' is = 1
    var filteredRecords = [];
    for (i = 0; i < records.length; i++) {
        if (records[i].get('booleanColumn') === 1) {
            filteredRecords.push(records[i]);
        }
    }
    console.log(filteredRecords);

    // create a new array of 'stringColumn' values
    var filteredValues = [];
    for (i = 0; i < filteredRecords.length; i++) {
        filteredValues[i] = filteredRecords[i].get('stringColumn');
    }
    console.log(filteredValues);

   // proceed with filtered values...
});

cf9查询网格值SQL

1 个答案: