使用DuplicateObject请求的可变键创建objectIds映射 [英] Create the objectIds map with variable keys for a DuplicateObject request
问题描述
在创建重复对象"请求时，objectIds映射不允许我在下面的强调部分中放置变量:
When creating a "duplicate object" request, the objectIds map will not let me put a variable in the emphasized portion below:
var alternateSlideId = 'alternate_' + i;
{
duplicateObject:
{
objectId: alternateSlide,
objectIds: {
**alternateSlide**: 'Copied_Alternate_Slide_' + i,
}
}
}
(i是一个循环数字)
据我了解，map函数的作用类似于
((objectId to be copied) : (name of new objectId))
我无法在map函数的左侧使用变量，也无法将'alternate_' + i放入地图的左侧，并且不确定原因.我需要复制以前已经复制过的多张幻灯片，因此要有变量名.
(i is a number in a loop)
From my understanding the map function works like
((objectId to be copied) : (name of new objectId))
I'm unable to use a variable on the left side of the map function, and I'm unable to put 'alternate_' + i into the left side of the map and I'm uncertain as to why. I need to duplicate multiple slides that have already been duplicated before, and thus have variable names.
如何为objectIds映射分配变量键?
How can I assign variable keys to the objectIds map?
推荐答案
您需要指定唯一 ID.不仅是幻灯片特有的，而且整个演示文稿也是如此.考虑像在此答案中一样使用Utilities.getUuid().
You need to specify unique ids. Not just unique to the slide, but the whole presentation. Consider using Utilities.getUuid() as I do in this answer.
Google Apps脚本本质上是JavaScript 1.6，因此要写入变量属性名称，您需要使用括号运算符，而不是对象文字构造函数中的点运算符或变量名称/简写语法.您过去的尝试很可能试图从构造函数中做到这一点:
Google Apps Script is essentially JavaScript 1.6, so to write to a a variable property name, you need to use the bracket operator, rather than the dot operator or the variable name / shorthand syntax in the object literal constructor. Your past attempts likely attempted to do this from the constructor:
不起作用(对象文字构造函数):
Won't work (object literal constructor):
var v = "some prop name";
var myObj = {
v: "some prop value",
};
console.log(myObj); // {'v': 'some prop value'}
不起作用(点运算符):
Won't work (dot operator):
var v = "some prop name";
var myObj = {};
myObj.v = "some prop value";
console.log(myObj); // {'v': 'some prop value'}
不起作用(因为GAS不是ECMAScript2015或更高版本)，并且在保存时抛出无效的属性ID"错误:
Won't work (since GAS is not ECMAScript2015 or newer), and throws "Invalid property ID" error when saving:
var v = "some prop name";
var myObj = {
[v]: "some prop value",
};
console.log(myObj);
会工作(括号运算符):
Will work (bracket operator):
var v = "some prop name";
var myObj = {};
myObj[v] = "some prop value";
console.log(myObj); // {'some prop name': 'some prop value'}
因此，您要复制由变量altSlide表示的幻灯片的代码必须类似于:
Thus, your code to copy the a slide represented by the variable altSlide needs to be something like:
var newAltSlideId = ("copied_altSlide_" + i + "_" + Utilities.getUuid()).slice(0, 50);
var dupRqConfig = {
objectId: altSlide.objectId, // the object id of the source slide
objectIds: {} // map between existing objectIds on the altSlide, and the new ids
};
// Set the duplicate's ID
dupRqConfig.objectIds[altSlide.objectId] = newAltSlideId;
// If you want to set the objectIds in the duplicate, you need to
// loop over altSlide's child objects. An example:
altSlide.pageElements.forEach(function (child, index) {
dupRqConfig.objectIds[child.objectId] = /** some new id */;
});
requests.push({ duplicateObject: dupRqConfig }); // add the request to the batchUpdate list
参考:
ObjectinitializerDuplicateObjectRequestPageresource (aka a "slide")- "Copy a slide" sample
Array#forEach
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