VOD E-T-P-V data model

Name	Type	Description	Localised	Always available
`_id`	String	Internal identifier for the object.	No	Yes
`e`	String	Internal identifier for the associated editorial content.	No	Yes
`editorial`	VOD Editorial data model	The associated editorial content.	No	Yes
`isPreviewScreening`	Boolean	Whether this object is part of a test trail (and therefore should be be available to be seen by the general public). Note that this is not related to trailers or promotions, but simply test data.	No	Yes
`isPurchasable`	Boolean	Whether this object can be bought. That is, whether the current date is between the produc's start and end purchase dates.	No	Yes
`isValid`	Boolean	Whether this object is still valid and can therefore be used. That is, whether the current date is between the product's start and end validity dates.	No	Yes
`isVisible`	Boolean	Whether this object is visible in the catalogue. That is, whether the current date is between the `VodItem` period's start and end dates.	No	Yes
`p`	String	Internal identifier for the associated `Product`.	No	Yes
`product`	VOD Product data model	The associated product.	No	Yes
`provider`	String	Identifier for the service provider.	No	Yes
`t`	String	Internal identifier for the associated technical content.	No	Yes
`technical`	VOD Technical data model	The associated technical content.	No	Yes
`v`	String	Internal identifier for the associated `VodItem`.	No	Yes
`voditem`	VOD VodItem data model	The associated `VodItem`.	No	Yes