(找到答案后,我减少了我的问题以删除不太相关的部分,以便它对任何未来的读者更具可读性/有用。)
我正在 Mongoose 中测试我的模式/模型,看看它们是否按预期工作。大多数情况下,它们确实如此,但我发现有时我最终会多次保存相同的文档。
我将介绍我正在尝试的内容。首先我加载模型并确认集合为空:
var Artist = require('model-Artist');
Artist.find({}, function(err, docs) {
docs.forEach(function(doc) { doc.remove(); }); // delete all docs to be safe
});
Artist.count({}, console.log); // => null 0
好的,所以集合是空的。new
然后我使用mongoose 模型创建一个新文档:
var nedRorem = new Artist();
nedRorem.names.push({
sort: 'Rorem, Ned',
display: 'Ned Rorem',
brief: 'Rorem',
personal: true
});
nedRorem.born = { year: 1923, month: 10, date: 23 };
nedRorem.places.push('USA');
此时,我检查文档的外观:
> nedRorem
{ born: Mon Oct 22 1923 20:28:00 GMT-0400 (Eastern Daylight Time),
_id: 522a0694e9a7813c23000020,
specialGenres: [],
seeAlso: [],
memberOf: [],
places: [ 'USA' ],
ensemble: false,
names:
[ { sort: 'Rorem, Ned',
display: 'Ned Rorem',
brief: 'Rorem',
_id: 522a0694e9a7813c23000035,
index: true,
personal: true } ] }
看起来挺好的。注意_id。然后我保存并检查计数:
nedRorem.save();
Artist.count({}, console.log); // => null 1
优秀的!让我们开始创建另一个艺术家:
var catharineCrozier = new Artist();
catharineCrozier.names.push({
sort: 'Crozier, Catharine',
display: 'Catharine Crozier',
personal: true
});
请注意,我还没有保存新的。但是现在有多少艺术家?
Artist.count({}, console.log); // => null 3
!!???那么他们是谁?
Artist.find({}, console.log);
> null [ { born: Mon Oct 22 1923 20:28:00 GMT-0400 (Eastern Daylight Time),
_id: 522a08a7af52934c1200000a,
__v: 0,
specialGenres: [],
seeAlso: [],
memberOf: [],
places: [ 'USA' ],
ensemble: false,
names:
[ { sort: 'Rorem, Ned',
display: 'Ned Rorem',
brief: 'Rorem',
_id: 522a08a7af52934c1200000b,
index: true,
personal: true } ] },
{ born: Mon Oct 22 1923 20:28:00 GMT-0400 (Eastern Daylight Time),
_id: 522a08a8af52934c1200000d,
__v: 0,
specialGenres: [],
seeAlso: [],
memberOf: [],
places: [ 'USA' ],
ensemble: false,
names:
[ { sort: 'Rorem, Ned',
display: 'Ned Rorem',
brief: 'Rorem',
_id: 522a08a8af52934c1200000e,
index: true,
personal: true } ] },
{ born: Mon Oct 22 1923 20:28:00 GMT-0400 (Eastern Daylight Time),
_id: 522a08a8af52934c12000010,
__v: 0,
specialGenres: [],
seeAlso: [],
memberOf: [],
places: [ 'USA' ],
ensemble: false,
names:
[ { sort: 'Rorem, Ned',
display: 'Ned Rorem',
brief: 'Rorem',
_id: 522a08a8af52934c12000011,
index: true,
personal: true } ] } ]
第一个 Artist 有 3 个文档,它们的 ._id 都与我创建的原始文档不同。
所以这里是我定义艺术家模式的地方:
var artistSchema = new mongoose.Schema({
names: [{
sort: String,
display: String,
brief: String,
nonLatin: String,
personal: { type: Boolean, default: false },
index: { type: Boolean, default: true }
}],
born: ucaDate(true),
died: ucaDate(),
ensemble: { type: Boolean, index: true, default: false },
places: { type: [ String ], index: true },
memberOf: [ { type: ObjectID, ref: 'Artist' } ],
seeAlso: [ { type: ObjectID, ref: 'Artist' } ],
specialGenres: [{
name: String,
parent: String,
classical: Boolean
}]
});
是什么赋予了?