可以在 sys_properties 中使用占位符吗？

Question

是否可以创建一个 sys_property 值，例如：

This incident has been picked up by {person_name} for further investigation

然后在代码中使用如下内容：

var assignee = "John Doe";
var prop = gs.getProperty('my_property_name');    
// and now replace person_name with the value of assignee variable?

Answer 1

您可以使用RecordToHTML API, traditionally it's used for using the fields from a record as the replacement values for the string fields, however, with the help of .setValue()，您可以绕过记录参数并指定您自己的值。请注意，要使字符串中的“变量”起作用，需要将其包装在 ${} 而不是 {}:

中

var prop = gs.getProperty('my_property_name'); // "This incident has been picked up by ${person_name} for further investigation";
var assignee = "John Doe";
 
var rth = new RecordToHTML(null, null, prop);
rth.setValue("person_name", assignee); // replaces ${person_name} with "John Doe"

var result = rth.toString(); // "This incident has been picked up by John Doe for further investigation"

上面的内容有点老套，因为它绕过了记录参数。如果您想采用另一种方法，您可以为此创建自己的功能。您可以首先将 assignee 放入一个包含键 person_name 并指向您的 assignee 值的对象中，然后使用一个函数使用 [=22] 替换 {<key>} 中的值=] 作为索引对象的键：

function interpolate(str, obj) {
  return str.replace(/{([^}]+)}/g, function(match, key) {
    return obj[key] || match; // if we can't find the key, return the original `{key}`
  });
}

var variableMap = {
  "person_name": "John Doe" // assignee
};

var prop = gs.getProperty('my_property_name');
var msg = interpolate(prop, variableMap); // "This incident has been picked up by John Doe for further investigation"

还有一些其他选项可供您使用，它们可能会满足您的需求，这些选项也值得研究。一个是使用 RecordToHTML() and another being gs.getMessage() 的第一个参数。 RecordToHTML 也可以很好，如果你有一个特定的记录，其中包含你想从你的字符串中替换的字段（请注意，你的字段需要包装在 ${} 中）：

var rth = new RecordToHTML("incident", incidentSysId, "This incident has been picked up by ${assigned_to} for further investigation", false);
var result = rth.toString();

还有 gs.getMessage()，它来自 close，但它不允许在您的字符串中命名“变量”，并且需要您使用索引。它还会在每次调用时在 sys_ui_message table 中执行 table 查询/查找，这可能有点矫枉过正：

// prop = This incident has been picked up by {0} for further investigation
var msg = gs.getMessage(prop, [assignee]);

可以在 sys_properties 中使用占位符吗？

Possible to use placeholders in sys_properties?

javascript

servicenow