輪動內容動態

Question

我有一個XPage，其中動態創建領域。默認情況下，有3個，但你可以點擊一個按鈕來添加儘可能多的，命名約定「ObjectiveDetails1」，「ObjectiveDetails2」等等。

我試圖處理空白字段...例如，在域1和2，沒有在3和4的內容，但在5我想要做什麼內容，是從外地5移位到內容第一個可用空白，在這種情況下是3.同樣，如果字段1,2,4,5中有內容，則需要4中的內容，3中的內容以及5中的內容進入字段4等等。目前，我正在設法僅將內容轉移1。

所以如果字段2，3，4是空白的，但5有內容，它只是移動內容到4，在那裏，因爲我需要它移動到外地2.

我希望我已經說明了這不夠好.....現在的代碼是有點亂....

for (var i = 1; i < viewScope.rows+1; i++) { 
print("Starting Array....."); 
if(applicationScope.get("BreakAllCode")==true){ 
    break; 
} 
var objFieldName:string = "ObjectiveDetails" +i; 
print ("Field Name: " + objFieldName); 

var fieldValue = document1.getItemValueString(objFieldName); 

print ("Field Value: " + fieldValue); 
if (fieldValue =="" || fieldValue==null){ 
    print("EMPTY"); 

    // We now need to delete the 3 fields related to this objective 
    var updFieldName:string = "ObjectiveUpdates" +i; 
    var SAFieldName:string = "ObjectiveSelfAssessment" +i; 

    // Before we delete the fields, we need to check if the next field is blank 
    // and if not, copy its contents into this field. 

    for (var n =i+1; n < viewScope.rows+1; n++) { 
    if(applicationScope.get("BreakAllCode")==true){ 
    break; 
    } 

     if(document1.hasItem("ObjectiveDetails" +n)){  
      print("Next field: " +"ObjectiveDetails" +n); 
      var nextFieldValue = document1.getItemValueString("ObjectiveDetails" +n); 

      if (!nextFieldValue =="" || !nextFieldValue==null){ 
       // Now copy the content into the field 
       var nextFieldName:string = "ObjectiveDetails" +n; 
       var previousNo = n-1; 
       var previousFieldName:string = "ObjectiveDetails" +previousNo; 
       print ("Previous field: " + previousFieldName); 
       document1.replaceItemValue(previousFieldName,nextFieldValue); 

       // Now clear the content from next field 
       document1.replaceItemValue(nextFieldName,""); 
      }else{ 
       // Do nothing 
      } 
     }else{ 
      print("Last field"); 
     } 
    } 
    // Remove items from the document 
    //document1.removeItem(objFieldName); 
    //document1.removeItem(updFieldName); 
    //document1.removeItem(SAFieldName); 

    // Remove fields from our arrays 
    //viewScope.fields.splice(i-1, 1); 
    //viewScope.fields2.splice(i-1, 1); 
    //viewScope.fields3.splice(i-1, 1); 

    // Update the row variable 
    //viewScope.rows--; 
    //document1.replaceItemValue("rows",viewScope.rows); 
    //document1.save(); 

    // We now need to "re-index" the array so that the fields are numbered corectly 

}else{ 
    print("We have a value"); 
} 
} 

更新與beforePageLoad：

viewScope.rows = document1.getItemValueInteger("rows"); 

var rowCount:integer = viewScope.rows; 
var newCount:integer = 0; 

while(newCount<rowCount){ 
if (!viewScope.fields) { 
    viewScope.fields = []; 
    viewScope.fields2 = []; 
    viewScope.fields3 = []; 
} 

viewScope.fields.push("ObjectiveDetails" + (viewScope.fields.length + 1)); 
viewScope.fields2.push("ObjectiveUpdates" + (viewScope.fields2.length + 1)); 
viewScope.fields3.push("ObjectiveSelfAssessment" + (viewScope.fields3.length + 1)); 

newCount++; 
} 

Answer 1

這應該是你的核心算法：

var writeIndex = 0; 
for (var readIndex = 1; readIndex <= viewScope.rows; readIndex++) { 
    var value = document1.getItemValueString("ObjectiveDetails" + readIndex); 
    if (value) { 
     writeIndex++; 
     if (readIndex !== writeIndex) { 
      document1.removeItem("ObjectiveDetails" + readIndex); 
      document1.replaceItemValue("ObjectiveDetails" + writeIndex, value); 
     } 
    } else { 
     document1.removeItem("ObjectiveDetails" + readIndex); 
    } 
} 
viewScope.rows = writeIndex; 

代碼

• 刪除所有空字段，
• 重命名爲ObjectiveDetails1，ObjectiveDetails2，ObjectiveDetails3，田野......和
• 所得的行數寫回viewScope變量「行」。

Answer 2

如果我理解正確的話您的問題，那麼這段代碼應該工作（未測試）：

// define variables 
var i,j,nRows,values,value,allowContinue,fieldname; 

// collect values from document fields 
nRows=viewScope.rows; 
values=[]; 
for (i=0;i<nRows;i++) { 
    values.push(document1.getItemValueString("ObjectiveDetails"+(i+1).toFixed(0))); 
} 

// fill empty values 
for (i=0;i<nRows-1;i++) { 
    if (values[i]) continue; 
    allowContinue=false; 
    for (j=i+1;j<nRows;j++) { 
     if (value=values[j]) { 
      values[i]=value; 
      values[j]=""; 
      allowContinue=true; 
      break; 
     } 
    } 
    if (!allowContinue) break; 
} 

// write back to document and remove empty fields on the end 
for (i=0;i<nRows;i++) { 
    fieldname="ObjectiveDetails"+(i+1).toFixed(0); 
    if (value=values[i]) document1.replaceItemValue(fieldname,value); 
    else document1.removeItem(fieldname); 
}