documents/schema

Description

The validator mixin provides access to the features of the JSON validation system

Details

Members


schema :object

Description

The schema that defines the validation rules. This should probably be defined at the prototype for each
object or model classification. It can be an anonymous schema defined right here, or this can be
registered schema names to use, or just a single name

Details
object

schemas :object

Description

If you want to register multiple schemas, use this property instead

Details
object

_defaultSchemaName :string|function

Description

The default name of the scheman when you use anonymous schemas. You can define this at the prototype for classified
schemas. The can also

Details
string | function

validationOptions :object|function

Description

The options to pass to the validator when it runs

Details
object | function

Methods


validate( [ record ], schemaName [, options ] ) → {object}

Description

Validate an object against the schema

Parameters
Name Type Attributes Description
record object <optional>

The record to validate

schemaName string | object

The name of a previously registered schema

options object <optional>

Options to pass to the validator

Returns
Examples
// This supports these signatures:

instance.validate(record, schemaName, options);


instance.validate(); // this, this._defaultSchemaName, this.validationOptions
instance.validate(record); // record, this._defaultSchemaName, this.validationOptions
instance.validate(schemaName); //this, schemaName, this.validationOptions
instance.validate(record, schemaName); //record, schemaName, this.validationOptions
instance.validate(schemaName, options); //this, schemaName, this.validationOptions
Details

registerSchemas( schemas )

Description

Initialize the schema collection by registering the with the handler. You can call this at any time and as often as you like. It will be called once
by the constructor on any instance schemas

Parameters
Name Type Description
schemas hash

A hash of schemas where the key is the name of the schema

Details

extract( [ record [, schema ] ] )

Description

Extracts only the elements of the object that are defined in the schema

Parameters
Name Type Attributes Description
record object <optional>

The record to extract from

schema string <optional>

The name of the schema to attach

Details

addType( name, operation ) → {boolean}

Description

Create a type to be used in your schemas to define new validators

Parameters
Name Type Description
name string

The name of the type

operation function

What to do with the type.

Name Type Description
value object

The value to validation

Returns
Details

addFormat( name, formatter ) → {boolean}

Description

It is also possible to add support for additional string formats through the addFormat function.

Parameters
Name Type Description
name string

The name of the formatter

formatter function

How to format it

Name Type Description
value object

The value to format

Returns
Details

addCheck( name, formatter ) → {boolean}

Description

It is possible to add support for custom checks (i.e., minItems, maxItems, minLength, maxLength, etc.) through the addCheck function

Parameters
Name Type Description
name string

The name of the check

formatter function

Perform the check

Name Type Description
value object

The value to check followed by any parameters from the schema

Returns
Details

addTypeCoercion( name, coercer ) → {boolean}

Description

Custom coercion rules

Parameters
Name Type Description
name string

The name of the coercion

coercer function

Perform the coercion

Name Type Description
value object

The value to coerce

Returns
Details

getSchema( [ schemaName ] ) → {object}

Description

Get a registered schema by name

Parameters
Name Type Attributes Description
schemaName string <optional>
Returns
Details

extract( [ schema [, src ] ] ) → {object}

Description

This method will create a new object that contains only the fields and no methods or other artifacts. This is useful
for creating objects to pass over the wire or save in a table. This is not deeply copied, so changes made to the
extracted object will be represented in this class for reference objects.

Parameters
Name Type Attributes Description
schema string <optional>

The schema name to use

src object <optional>

The object to extract fields from

Returns

Data-only version of the class instance.

Details

defaultDoc( schema ) → {object}

Description

Builds a default document based on the schema. What this does is create a document from schema and for each property
that has a default value or is required, the resultant object will contain that property. It is useful for extending
values from some source that may be incomplete, like options or some such.

Parameters
Name Type Description
schema json-schema

A schema to use to create the default document

Returns
Details