使用數組更新MongoDB中的（Javascript）集合列

Question

嘗試使用數組作為值更新mongoDB集合時，更新將以靜默方式失敗。

這不起作用：

var arr = ["test","test1","test2"];
$.ajax('http://my.mongodb.com/collection?id=80a2c727de877ac9' , {
      type: "PUT",
      contentType: "application/json",
      data: JSON.stringify({
        mykey: arr
      }),
      success: function() {
        // Do something
      }, 
      error: function(xhr) {
        console.log(xhr.responseText);
      }
    });

這樣做：

$.ajax('http://my.mongodb.com/collection?id=80a2c727de877ac9' , {
      type: "PUT",
      contentType: "application/json",
      data: JSON.stringify({
        mykey: "test"
      }),
      success: function() {
        // Do something
      }, 
      error: function(xhr) {
        console.log(xhr.responseText);
      }
    });

Answer 1

事實證明我需要在將數組在ajax數據中進行字符串化之前對數組進行字符串化：

var arr = ["test","test1","test2"];
arr = JSON.stringify(arr);
$.ajax('http://mordor.fmr.com:8030/techtest?id=80a2c727de877ac9' , {
      type: "PUT",
      contentType: "application/json",
      data: JSON.stringify({
        assignedTechs: arr
      }),
      success: function() {
        // Do something
      }, 
      error: function(xhr) {
        console.log(xhr.responseText);
      }
    });