var Story = mongoose.model('Story', StorySchema); var Person = mongoose.model('Person', PersonSchema); So far we've created two models. OurPersonmodel has itsstoriesfield set to an array ofObjectIds. Therefoption is what tells Mongoose in which model to look, in our case theStorymodel...
If your schema has an index like Thing.index({ name: 1, title: 1 }) and you wanted to tell MongoDB to use that index for your query (in the off chance that MongoDB was not able to figure our that it should use it) you can give MongoDB a hint like so: query.hint({ name: ...
首先,我们要定义一个基本的名为Article的Mongoose Schema。 这里我们将Comments定义为一个Array Schema类型。 不必要关注于所有的代码,只需要关注在Comments,这是本文讨论的重点。 varmongoose =require('mongoose'),Schema= mongoose.Schema,/** * Article Schema */varArticleSchema=newSchema({title: {type:String,...
[populate]{Array | Object | String} - Paths which should be populated with other documents.Documentation [lean=false]{Boolean} - Should return plain javascript objects instead of Mongoose documents?Documentation [leanWithId=true]{Boolean} - IfleanandleanWithIdaretrue, addsidfield with string repre...
Set custom default options for all queries config.js: varmongoosePaginate=require('mongoose-paginate-v2');mongoosePaginate.paginate.options={lean:true,limit:20,}; controller.js: Model.paginate().then(function(result){// result.docs - array of plain javascript objects// result.limit - 20}); ...
[populate]{Array | Object | String} - Paths which should be populated with other documents.Documentation [lean=false]{Boolean} - Should return plain javascript objects instead of Mongoose documents?Documentation [page=1]{Number} [limit=10]{Number}, Any number less than 1 will return all docume...
your code DRY so you don't have to add this casting logic everywhere you set theageproperty. Second, Mongoose casting works within nested objects, arrays, arrays of objects, and any other arbitrarily complex data structure. For example, suppose you have an array of objects with anageproperty...
SomeSchema=mongoose.Schema({students:[{type:mongoose.Schema.ObjectId,ref:'OtherSchema',relName:'Teaches'}]}); Array of objects that include a ref property will be used to create multiple relations with relation properties. e.g. SomeSchema=mongoose.Schema({takenClasses:[{class:{type:mongoose.Sc...
✅ Nested objects and schemas ✅ Arrays ✅ Enums (strings only) ✅ Default values ✅ Maps ✅ Dates ✅ ObjectId ✅ ObjectId references ✅ ZodAny as SchemaTypes.Mixed ✅ Validation using refinement for String, Number, Date ...
I was receiving this error CastError: Cast to ObjectId failed for value “[object Object]” at path “_id” after creating a schema, then modifying it and couldn't track it down. I deleted all the documents in the collection and I could add 1 object but not a second. I ended up ...