蒙戈给予非唯一字段的重复键错误“ [英] Mongo Giving 'duplicate key error' on non-unique fields
问题描述
我试图插入一个子文档的时候得到一个MongoDB的错误。该SUBDOCS已经有了独特的_ids,但被抛出了一个不同的,非唯一的字段,我不想独特的错误。
在角的错误是:Assets.serial已经存在。 我怎样才能让这个字段包含重复的值,是什么原因造成的模型假设它应该是唯一的?
下面是我的猫鼬模型:
使用严格的;VAR猫鼬=要求('猫鼬'),
模式= mongoose.Schema;
VAR AssetUrlSchema =新模式({
名称: {
类型:字符串,
独特之处:假的,
默认:'',
修剪:真
},
网址:{
类型:字符串,
独特之处:假的,
默认:http://placehold.it/75x75',
修剪:真
},
}),AssetSchema =新模式({
串行:{
类型:数字,
独特之处:假的
},
网址:{
类型:[AssetUrlSchema]
独特之处:假的,
默认值:[
{名称:'',网址:'http://placehold.it/75x75},
{名称:'',网址:'http://placehold.it/75x75'}
]
}
}),/ **
*项目架构
* /
ItemSchema =新模式({
名称: {
类型:字符串,
默认:'',
要求:'请输入名称',
修剪:真
}, 资产:{
类型:[AssetSchema]
默认值:[],
独特之处:假的
}, 属性:{
类型:Schema.ObjectId,
ZD:'请选择一个属性',
裁判:财产
}, 创建:{
类型:日期,
默认:Date.now
}, 用户:{
类型:Schema.ObjectId,
参考:用户
}
});mongoose.model('项目',ItemSchema);
这是我的保存方法:
函数(){
变种I = 0,资产= []; 对于(; I< 24;我++){
assets.push({
串行:1000 +我,
网址:{
名称:资产名称+我,
网址:http://placehold.it/75x75?
}
});
} 项目=新的项目({
名称:FPO,
属性:newPropId,
资产:资产
}); 返回的项目。$保存(
功能(响应){返回响应; },
功能(errorResponse){
$ scope.error = errorResponse.data.message;
}
);
}
我第一次插入一个文件,它工作正常。随后的任意时间时,出现一个400,因为assets.serial场不是唯一的。但是,我特别标志着该领域独特:假
在模式的控制台的错误是:
{[MongoError:insertDocument ::引起:: 11000 E11000重复键错误指数:$均值dev.items assets.serial_1 DUP键:{1000}]
名称:'MongoError',
code:11000,
错误:insertDocument ::由:: 11000 E11000重复键错误索引造成:均值dev.items $ assets.serial_1 DUP键:{:1000}'}
POST / API / 400项目毫秒14.347 - 41
猫鼬不会删除现有的索引,所以你需要显式删除摆脱它的索引。在shell:
> db.items.dropIndex('assets.serial_1')
如果您最初定义字段此会发生独特:真正的
但后来从架构定义删除或更改为独一无二的:假的
。
I am getting a MongoDB error when trying to insert a subdocument. The subdocs already have unique _ids, but an error is being thrown for a different, non-unique field that I don't want unique.
The error in Angular is: "Assets.serial already exist". How can I make this field contain duplicate values, and what is causing the model to assume it should be unique?
Here is my Mongoose model:
'use strict';
var mongoose = require('mongoose'),
Schema = mongoose.Schema;
var AssetUrlSchema = new Schema({
name: {
type: String,
unique: false,
default: '',
trim: true
},
url: {
type: String,
unique: false,
default: 'http://placehold.it/75x75',
trim: true
},
}),
AssetSchema = new Schema({
serial: {
type: Number,
unique: false
},
urls: {
type: [AssetUrlSchema],
unique: false,
default: [
{ name: '', url: 'http://placehold.it/75x75' },
{ name: '', url: 'http://placehold.it/75x75' }
]
}
}),
/**
* Item Schema
*/
ItemSchema = new Schema({
name: {
type: String,
default: '',
required: 'Please enter name',
trim: true
},
assets: {
type: [AssetSchema],
default: [],
unique: false
},
property: {
type: Schema.ObjectId,
zd: 'Please select a property',
ref: 'Property'
},
created: {
type: Date,
default: Date.now
},
user: {
type: Schema.ObjectId,
ref: 'User'
}
});
mongoose.model('Item', ItemSchema);
And here is my 'save' method:
function(){
var i = 0, assets = [];
for (;i < 24;i++) {
assets.push({
serial: 1000+i,
urls: {
name: 'Asset Name ' + i,
url: 'http://placehold.it/75x75?'
}
});
}
item = new Items ({
name: 'FPO',
property: newPropId,
assets: assets
});
return item.$save(
function(response){ return response; },
function(errorResponse) {
$scope.error = errorResponse.data.message;
}
);
}
The first time I insert a document, it works fine. Any subsequent time, it fails with a 400 because the assets.serial field is not unique. However, I am specifically marking that field as unique:false.
The error in the mode console is:
{ [MongoError: insertDocument :: caused by :: 11000 E11000 duplicate key error index: mean-dev.items.$assets.serial_1 dup key: { : 1000 }]
name: 'MongoError',
code: 11000,
err: 'insertDocument :: caused by :: 11000 E11000 duplicate key error index: mean-dev.items.$assets.serial_1 dup key: { : 1000 }' }
POST /api/items 400 14.347 ms - 41
Mongoose doesn't remove existing indexes so you'll need to explicitly drop the index to get rid of it. In the shell:
> db.items.dropIndex('assets.serial_1')
This will happen if you initially define that field unique: true
but then later remove that from the schema definition or change it to unique: false
.
这篇关于蒙戈给予非唯一字段的重复键错误“的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!