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match_object_meta

Synopsis​

@match_object_meta(MetadataKey LogicalExpression) -> Boolean

@match_object_meta(MetadataKey InnerFunction) -> Boolean

Description​

Checks if the object's metadata entry matches the provided condition.

info

Available in Contextal Platform 1.0 and later.

Parameters​

The first argument is always the object's metadata key name, which is followed by a logical expression or an inner function regex/iregex/starts_with, if the key's value is of type String.

Return value​

Boolean: true if the metadata key exists and its value matches the condition, false otherwise.

Examples​

@match_object_meta($natural_language == "English")
  • This matches an object, which has a metadata key natural_language and its value is "English"
@match_object_meta($number_of_words > 200)
  • This matches an object, which has a metadata key number_of_words and its value is bigger than 200.
@match_object_meta($url starts_with("https://"))
  • This matches an object, which has a metadata key url and its value starts with the string "https://"