我正在构建一个脚本，以便每天自动将我的电子邮件从一个标签移动到下一个标签（以便标记为“5天”的邮件将自动标记为“4天”，然后“ 3天“之后的第二天，等等。”
问题在于它将标签应用于整个线程，而不仅仅是消息 - 如果您关闭了“对话视图”并且各种电子邮件在不同的标签下分开，则会出现问题。
这是我的脚本（每日触发）：
function moveUp(previousLabel, newLabel) {
var threads = GmailApp.getUserLabelByName(previousLabel).getThreads()
var numThreads = threads.length
if (numThreads>0) {
for(var i = 0; i < numThreads; i++) {
if(GmailApp.getUserLabelByName(previousLabel).getThreads().length>0) {
var lastThread = GmailApp.getUserLabelByName(previousLabel).getThreads()[0]
GmailApp.getUserLabelByName(newLabel).addToThread(lastThread.markUnread());
GmailApp.getUserLabelByName(previousLabel).removeFromThread(lastThread)
Utilities.sleep(200)
} else {
{break;}
}
}
}
}
function myFunction() {
var threads = GmailApp.getUserLabelByName("-To Do/1 Day").getThreads()
var numThreads = threads.length
if (numThreads>0) {
for(var i = 0; i < numThreads; i++) {
if(GmailApp.getUserLabelByName("-To Do/1 Day").getThreads().length>0) {
var lastThread = GmailApp.getUserLabelByName("-To Do/1 Day").getThreads()[0]
lastThread.moveToInbox().markUnread();
GmailApp.getUserLabelByName("-To Do/1 Day").removeFromThread(lastThread)
Utilities.sleep(200)
} else {
{break;}
}
}
}
moveUp("-To Do/2 Days", "-To Do/1 Day")
moveUp("-To Do/3 Days", "-To Do/2 Days")
moveUp("-To Do/4 Days", "-To Do/3 Days")
moveUp("-To Do/5 Days", "-To Do/4 Days")
}
所以有人知道如何仅将标签应用于特定消息吗？或者解决方法来实现相同的结果？
由于
答案 0 :(得分：7)
您可以使用GMail API代替此操作。您需要为项目启用API。在编辑器中，选择Resources > Advanced Google services，然后点击“还必须在 Google Developers Console 中启用这些服务”。在那里，启用GMail API。
使用示例：
modifyMessage('me', messageId, ['stack','overflow']); // add two labels
modifyMessage('me', messageId, null, ['stack','overflow']); // remove two labels
TL; DR 完整代码可用in this gist，下方隐藏在代码段中。
/**
* Modify the Labels a Message is associated with.
* Throws if unsuccessful.
* see https://developers.google.com/gmail/api/v1/reference/users/messages/modify
*
* @param {String} userId User's email address. The special value 'me'
* can be used to indicate the authenticated user.
* @param {String} messageId ID of Message to modify.
* @param {String[]} labelsToAdd Array of Label names to add.
* @param {String[]} labelsToRemove Array of Label names to remove.
*
* @returns {Object} Users.messages resource, see reference.
*/
function modifyMessage(userId, messageId, labelsToAdd, labelsToRemove) {
labelsToAdd = labelsToAdd || [];
labelsToRemove = labelsToRemove || [];
// see https://developers.google.com/gmail/api/v1/reference/users/messages/modify
var url = 'https://www.googleapis.com/gmail/v1/users/${userId}/messages/${id}/modify'
.replace("${userId}","me")
.replace("${id}", messageId );
var headers = {
Authorization: 'Bearer ' + ScriptApp.getOAuthToken()
};
var addLabelIds = [];
for (var i=0; i<labelsToAdd.length; i++) {
addLabelIds[i] = getLabelId( labelsToAdd[i] );
}
var removeLabelIds = [];
for (var i=0; i<labelsToRemove.length; i++) {
removeLabelIds[i] = getLabelId( labelsToRemove[i], false );
}
var request = {
'addLabelIds': addLabelIds,
'removeLabelIds': removeLabelIds
};
var params = {
method: "post",
contentType: "application/json",
headers: headers,
payload: JSON.stringify(request),
muteHttpExceptions: true
};
//var check = UrlFetchApp.getRequest(url, params); // for debugging
var response = UrlFetchApp.fetch(url, params);
var result = response.getResponseCode();
if (result == '200') { // OK
return JSON.parse(response.getContentText());
}
else {
// This is only needed when muteHttpExceptions == true
var err = JSON.parse(response.getContentText());
throw new Error( 'Error (' + result + ") " + err.error.message );
}
}
/**
* Get the Label ID for the given LabelName. If Label isn't found, it will be created
* depending on the state of ok2Create.
* Throws if unsuccessful.
* See https://developers.google.com/gmail/api/v1/reference/users/messages/modify.
*
* @param {String} labelName Name of label to retrieve ID for.
* @param {Boolean} ok2Create (optional) Set true if a label should be created when not found.
* Default is true.
*
* @returns {String} ID of Label, or null if not found or created.
*/
function getLabelId( labelName, ok2Create ) {
if (typeof ok2Create == 'undefined') ok2Create = true;
var id = null;
// see https://developers.google.com/gmail/api/v1/reference/users/labels/list
var url = 'https://www.googleapis.com/gmail/v1/users/${userId}/labels'
.replace("${userId}","me") // The user's email address. The special value me can be used to indicate the authenticated user.
var headers = {
Authorization: 'Bearer ' + ScriptApp.getOAuthToken()
};
var params = {
method: "get",
contentType: "application/json",
headers: headers,
muteHttpExceptions: true
};
//var check = UrlFetchApp.getRequest(url, params); // for debugging
var response = UrlFetchApp.fetch(url, params);
var result = response.getResponseCode();
if (result == '200') { // OK
var labels = JSON.parse(response.getContentText()).labels;
var found = false;
for (var i=0; i<labels.length & !found; i++) {
if (labels[i].name == labelName) {
found = true;
id = labels[i].id;
}
}
if (!found && ok2Create) {
id = createLabel( labelName );
}
return id;
}
else {
// This is only needed when muteHttpExceptions == true
var err = JSON.parse(response.getContentText());
throw new Error( 'Error (' + result + ") " + err.error.message );
}
}
/**
* Create Label for given `labelName`.
* Throws if unsuccessful.
* See https://developers.google.com/gmail/api/v1/reference/users/messages/modify.
*
* @param {String} labelName Name of label to create
*
* @returns {String} ID of Label.
*/
function createLabel( labelName ) {
var id = null;
// see https://developers.google.com/gmail/api/v1/reference/users/labels/create
var url = 'https://www.googleapis.com/gmail/v1/users/${userId}/labels'
.replace("${userId}","me") // The user's email address. The special value me can be used to indicate the authenticated user.
var headers = {
Authorization: 'Bearer ' + ScriptApp.getOAuthToken()
};
var request = {
'name': labelName
};
var params = {
method: "post",
contentType: "application/json",
headers: headers,
payload: JSON.stringify(request),
muteHttpExceptions: true
};
//var check = UrlFetchApp.getRequest(url, params); // for debugging
var response = UrlFetchApp.fetch(url, params);
var result = response.getResponseCode();
if (result == '200') { // OK
var label = JSON.parse(response.getContentText());
id = label.id;
return id;
}
else {
// This is only needed when muteHttpExceptions == true
var err = JSON.parse(response.getContentText());
throw new Error( 'Error (' + result + ") " + err.error.message );
}
}
/**
* Modify the Labels a Message is associated with.
* Throws if unsuccessful.
* see https://developers.google.com/gmail/api/v1/reference/users/messages/modify
*
* @param {String} userId User's email address. The special value 'me'
* can be used to indicate the authenticated user.
* @param {String} messageId ID of Message to modify.
* @param {String[]} labelsToAdd Array of Label names to add.
* @param {String[]} labelsToRemove Array of Label names to remove.
*
* @returns {Object} Users.messages resource, see reference.
*/
function modifyMessage(userId, messageId, labelsToAdd, labelsToRemove) {
labelsToAdd = labelsToAdd || [];
labelsToRemove = labelsToRemove || [];
// see https://developers.google.com/gmail/api/v1/reference/users/messages/modify
var url = 'https://www.googleapis.com/gmail/v1/users/${userId}/messages/${id}/modify'
.replace("${userId}","me")
.replace("${id}", messageId );
GMail API是一个RESTful API，与使用内置GMailApp服务提供的内容相比，可以更灵活，更详细地访问线程，消息，标签，草稿和历史记录。在我们的脚本中，我们通过URL访问API - 在这里，我们首先在modify消息方法的基本URL中填写详细信息。
var headers = {
Authorization: 'Bearer ' + ScriptApp.getOAuthToken()
};
除了为我们的项目启用API之外，每个请求都需要用户身份验证，这可以通过在命令头中嵌入Bearer Token来完成。
接下来，我们将构建其余的命令参数。
var addLabelIds = [];
for (var i=0; i<labelsToAdd.length; i++) {
addLabelIds[i] = getLabelId( labelsToAdd[i] );
}
var removeLabelIds = [];
for (i=0; i<labelsToRemove.length; i++) {
removeLabelIds[i] = getLabelId( labelsToRemove[i], false );
}
var request = {
'addLabelIds': addLabelIds,
'removeLabelIds': removeLabelIds
};
modify的规范调用POST操作，其中有效负载包含标签ID列表。这些ID不能通过内置的GMail服务获得，因此我们也将使用GMail API - getLabelId()是另一个类似于此的功能，专门用于按名称检索标签的ID，并创建根据需要新标签。请参阅该代码的要点或摘要。
var params = {
method: "post",
contentType: "application/json",
headers: headers,
payload: JSON.stringify(request),
muteHttpExceptions: true
};
//var check = UrlFetchApp.getRequest(url, params); // for debugging
var response = UrlFetchApp.fetch(url, params);
最后，我们为命令组装了params对象，其中包含带有我们身份验证令牌的headers的属性，以及带有命令参数payload的{{1}} - d用于运输。设置stringify会在发生故障时压制系统生成的异常，以便我们自己处理它们。
我已经注释了对muteHttpExceptions: true的调用 - 在发送命令之前验证命令的内容非常方便。
对UrlFetchApp.getRequest()的调用将我们的命令发送到我们在顶层建立的URL上运行的服务。
UrlFetchApp.fetch()收到回复后，我们首先检查命令的 var result = response.getResponseCode();
if (result == '200') { // OK
return JSON.parse(response.getContentText());
}
，其形式为HTTP Status Code。 result告诉我们我们成功了，所以我们继续将结果从响应中拉出来。 200 OK将邮件中的JSON string转换为JavaScript对象，然后返回给调用者。
JSON.parse()但是，如果我们遇到错误，我们会抛出自己的异常。根据命令的详细信息，我们可能希望以不同方式处理特定错误。例如，在此 else {
// This is only needed when muteHttpExceptions == true
var err = JSON.parse(response.getContentText());
throw new Error( 'Error (' + result + ") " + err.error.message );
}
}
命令中，如果我们提供不存在的标签ID，我们将收到错误：
错误：错误（400）标签无效：“无效标签”
答案 1 :(得分：0)
这是一个旧主题，但是对于像我这样阅读的任何人，也许这将为您节省一些时间。我喜欢@Mogsdad的答案，并从中学到了很多。但是，此版本使用高级Gmail服务（Google脚本中的完整GMail API），因此轻巧一些。
function getLabelMap() {
var allLabels = Gmail.Users.Labels.list('me');
var labelMap = [];
for (var label of allLabels.labels) {
labelMap[label.name] = label.id;
}
return labelMap;
}
var labelMap = getLabelMap();
function getLabel(labelName) {
return labelMap[labelName];
}
function labelMessage(messageID, labelName) {
var labelID = getLabel(labelName);
var labelRequest = {addLabelIds: [labelID]};
var subject = GmailApp.getMessageById(messageID).getSubject();
if (labelID != null) {
Logger.log("Labelling as %s: %s", labelName, subject);
Gmail.Users.Messages.modify(labelRequest, 'me', messageID);
} else {
Logger.log("Label not found: %s", labelName);
}
}
function unlabelMessage(messageID, labelName) {
var labelID = getLabel(labelName);
var labelRequest = {removeLabelIds: [labelID]};
var subject = GmailApp.getMessageById(messageID).getSubject();
if (labelID != null) {
Logger.log("Removing label %s: %s", labelName, subject);
Gmail.Users.Messages.modify(labelRequest, 'me', messageID);
} else {
Logger.log("Label not found: %s", labelName);
}
}
function reLabel () {
var messagesToRelabel = Gmail.Users.Messages.list('me', {'q':'label:Old-label'}).messages || []; // feel free to add date criteria using regular GMail keywords
// Loop through each message (not by thread), using the Advanced Gmail Service (full GMail API in a Google Script).
messagesToRelabel.forEach(function (messageToRelabel){
unlabelMessage(messageToRelabel.id, "Old label");
labelMessage(messageToRelabel.id, "New label");
});
}
OP并没有要求，但可能对其他尝试使用GMail API进行“高级过滤/标记”的人有所帮助：
function getMessageHeader(messageID, headerField) {
var messageInfo = Gmail.Users.Messages.get('me', messageID, {'format':'METADATA', 'metadataHeaders':[headerField]});
if (messageInfo.payload.headers) {
return messageInfo.payload.headers[0].value;
} else {
return null;
}
}
以上内容可让您过滤标题信息，例如我用它来检查X-Uniform-Type-Identifier是否等于com.apple.mail-note以自动将旧的Apple Notes标记为删除。