metadata
- Description:
Item metadata namespace. This namespace provides access to Item metadata.
- Source:
Classes
Namespaces
Methods
(static) getMetadata(itemOrName, namespaceopt) → {Object|ItemMetadata|null}
- Description:
Gets metadata of a single namespace or of all namespaces from a given Item.
- Source:
- See:
-
- items.Item.getMetadata
Example
// Get metadata of ALL namespaces
var meta = items.metadata.getMetadata(items.Hallway_Light);
var namespaces = Object.keys(meta); // Get metadata namespaces
// Get metadata of a single namespace
meta = items.metadata.getMetadata(items.Hallway_Light, 'expire');
Parameters:
Name | Type | Attributes | Description |
---|---|---|---|
itemOrName |
Item | string |
|
|
namespace |
string |
<optional> |
name of the metadata: if provided, only metadata of this namespace is returned, else all metadata is returned |
Returns:
all metadata as an object with the namespaces as properties OR metadata of a single namespace or null
if that namespace doesn't exist; the metadata itself is of type ItemMetadata
- Type
- Object | ItemMetadata | null
(static) removeMetadata(itemOrName, namespaceopt) → {ItemMetadata|null}
- Description:
Removes metadata of a single namespace or of all namespaces from a given Item.
- Source:
- See:
-
- items.Item.removeMetadata
Parameters:
Name | Type | Attributes | Description |
---|---|---|---|
itemOrName |
Item | string |
|
|
namespace |
string |
<optional> |
name of the metadata: if provided, only metadata of this namespace is removed, else all metadata is removed |
Returns:
removed metadata OR null
if the Item has no metadata under the given namespace or all metadata was removed
- Type
- ItemMetadata | null
(static) replaceMetadata(itemOrName, namespace, value, configurationopt) → {ItemMetadata|null}
- Description:
Updates or adds metadata of a single namespace to an Item.
- Source:
- See:
-
- items.Item.replaceMetadata
Parameters:
Name | Type | Attributes | Description |
---|---|---|---|
itemOrName |
Item | string |
|
|
namespace |
string | name of the metadata |
|
value |
string | value for this metadata |
|
configuration |
object |
<optional> |
optional metadata configuration |
Returns:
old metadata or null
if the Item has no metadata with the given name
- Type
- ItemMetadata | null