无法更新 NamedRange 段落中的文本

Question

我的 google 文档中有一个带有几个选项的单选按钮。当用户 select 选择一个选项时，它会添加一个带有标题和段落的部分。它应该仅在该部分不可用时添加该部分并将 'updated' 文本附加到该段落。

如果该部分已经可用，它应该只在文本末尾附加更新的文本。

问题： 实际上这个行为很奇怪：

例如，如果我 select 名为 'Diagnoses' 的部分，它将被正确创建。

诊断

更新文本，新范围？真

如果我 select 名为 'Anamnese' 的部分。该部分也将正确创建：

诊断

更新文本，新范围？假

Anamnese

更新文本，新范围？真

如果我切换回 'Diagnoses'，它看起来像这样：

诊断

更新文本，新范围？真

Anamne 更新文本，新范围？假

更新文本，新范围？真更新文本，新范围？假

function manageSection(selectedSection) { 
  section = selectedSection;
  var range = doc.getNamedRanges().find(r => r.getName() == section);
  if (!range) {
    Logger.log('No named range. Installing a named range');
    setNamedRange(section)
  } else {
    Logger.log('Named range found.');
    getNamedRange(section)
  }
}

// No namedRange found - Set new named range with name section.
function setNamedRange(section) { 
  goToLastLine();
  // Append a section header
  var s = body.appendParagraph(section);
  s.setHeading(DocumentApp.ParagraphHeading.HEADING4);
  // Append paragraph to section
  var insert = body.appendParagraph('');
  var rangeBuilder = doc.newRange();
  rangeBuilder.addElement(insert);
  var savedInsert = rangeBuilder.build()
  var namedRange = doc.addNamedRange(section, savedInsert);
  var namedRangeId = namedRange.getId();
  // select the namedRange
  doc.setSelection(doc.getNamedRangeById(namedRangeId).getRange());
  var newRange = true;
  changeTextByNamedRange(section, newRange)
}

// Existing namedRange found.
function getNamedRange(section) {
  Logger.log('getNamedRange() started')
  var newRange = false;
  changeTextByNamedRange(section, newRange)
}

// Update named range.
function changeTextByNamedRange(section, newRange) {
  docUi.alert('section:' + section);
  var range = doc.getNamedRanges().find(r => r.getName() == section);
  // test
  var updateText = "updated text, new range? " + newRange;
  //
  range.getRange().getRangeElements().forEach(e => e.getElement().asText().appendText(updateText));
}

function goToLastLine(){
  const kids = body.getNumChildren()
  const lastKid = body.getChild(kids - 1)
  let last = 0
  try {
    const lastPar = body.getChild(kids - 1).asParagraph()
    last = doc.newPosition(lastPar.getChild(0), lastPar.getText().length)
  } catch (e) {
    last = doc.newPosition(body.getChild(kids - 1), 0)    
  } finally {
    doc.setCursor(last)
  }
}

Answer 1

我有一个解决方法，如果它仍然在您的目标范围内，请随时修改。

我修改了 setNamedRange 和 changeTextByNamedRange 函数。以下是他们的修改：

设置命名范围:

function setNamedRange(section) { 
  // Append a section header
  goToLastLine();
  var s = body.appendParagraph(section);
  s.setHeading(DocumentApp.ParagraphHeading.HEADING4);

  // Append paragraph to section 
  // for some reason, it fails to include the 1st paragraph when it is blank
  // you can add a space, or any character just to include the 1st one properly
  var insert = body.appendParagraph("\t");
  var rangeBuilder = doc.newRange();
  rangeBuilder.addElement(insert);
  var savedInsert = rangeBuilder.build();
  var namedRange = doc.addNamedRange(section, savedInsert);
  var namedRangeId = namedRange.getId();
  // select the namedRange
  doc.setSelection(doc.getNamedRangeById(namedRangeId).getRange());
  changeTextByNamedRange(section);
}

changeTextByNamedRange:

function changeTextByNamedRange(section) {
  // docUi.alert('section:' + section);
  var range = doc.getNamedRanges().find(r => r.getName() == section);
  // get list of section names
  var sectionNames = doc.getNamedRanges().map(r => r.getName());
  var updateText = "Newer Text is appended for this section " + section + ". ";
  
  // this section contains the succeeding sections as well
  // so you have to end the loop when you encounter another section
  // use some instead of forEach to be able to break the loop.
  range.getRange().getRangeElements().some(e => {
    var element = e.getElement();
    // do anything you want. Note that this will loop to each element of that range.
    // if section has multiple elements, it will append to each element.
    // since we are only appending text to a single paragraph element, this currently works
    element.asText().appendText(updateText)
    // end loop when you encounter a text that is one of the section names
    return !sectionNames.includes(element.asText())
  });
}

输出：

在不同部分多次运行后，修改要附加的文本，添加一些手动文本，然后再次运行 manageSection。这是结果。

无法更新 NamedRange 段落中的文本

Cannot update text in paragraph of NamedRange

google-docs

named-ranges

google-apps-script

设置命名范围:

changeTextByNamedRange:

输出：