Schema()

Parameters

• [definition] «Object|Schema|Array» Can be one of: object describing schema paths, or schema to copy, or array of objects and schemas

• [options] «Object»

Inherits:

• «NodeJS EventEmitter http://nodejs.org/api/events.html#events\_class\_events\_eventemitter»

Schema constructor.

Example:

const child = new Schema({ name: String });
const schema = new Schema({ name: String, age: Number, children: [child] });
const Tree = mongoose.model('Tree', schema);
// setting schema options
new Schema({ name: String }, { _id: false, autoIndex: false })

Options:

• autoIndex: bool - defaults to null (which means use the connection’s autoIndex option)
• autoCreate: bool - defaults to null (which means use the connection’s autoCreate option)
• bufferCommands: bool - defaults to true
• bufferTimeoutMS: number - defaults to 10000 (10 seconds). If bufferCommands is enabled, the amount of time Mongoose will wait for connectivity to be restablished before erroring out.
• capped: bool - defaults to false
• collection: string - no default
• id: bool - defaults to true
• _id: bool - defaults to true
• minimize: bool - controls document#toObject behavior when called manually - defaults to true
• read: string
• writeConcern: object - defaults to null, use to override the MongoDB server’s default write concern settings
• shardKey: object - defaults to null
• strict: bool - defaults to true
• strictQuery: bool - defaults to false
• toJSON - object - no default
• toObject - object - no default
• typeKey - string - defaults to ‘type’
• typePojoToMixed - boolean - defaults to true. Determines whether a type set to a POJO becomes a Mixed path or a Subdocument
• useNestedStrict - boolean - defaults to false
• validateBeforeSave - bool - defaults to true
• versionKey: string or object - defaults to “__v”
• optimisticConcurrency: bool - defaults to false. Set to true to enable optimistic concurrency.
• collation: object - defaults to null (which means use no collation)
• selectPopulatedPaths: boolean - defaults to true
• skipVersioning: object - paths to exclude from versioning
• timestamps: object or boolean - defaults to false. If true, Mongoose adds createdAt and updatedAt properties to your schema and manages those properties for you.
• storeSubdocValidationError: boolean - Defaults to true. If false, Mongoose will wrap validation errors in single nested document subpaths into a single validation error on the single nested subdoc’s path.

Options for Nested Schemas:

• excludeIndexes: bool - defaults to false. If true, skip building indexes on this schema’s paths.

Note:

When nesting schemas, (children in the example above), always declare the child schema first before passing it into its parent.