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| -rw-r--r-- | engine/lib/export.php | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/engine/lib/export.php b/engine/lib/export.php index e9129e3a3..6e9b1c495 100644 --- a/engine/lib/export.php +++ b/engine/lib/export.php @@ -222,6 +222,49 @@ protected function getTagName() { return "relationship"; } } + /** Relationship verb mapping */ + $ODD_RELATIONSHIP_VERBS = array(); + + /** + * This function provides a mapping between entity relationships and ODD relationship verbs. + * @param string $relationship The relationship as stored in the database, eg "friend" or "member of" + * @param string $verb The verb, eg "friends" or "joins" + */ + function register_odd_relationship_mapping($relationship, $verb) + { + global $ODD_RELATIONSHIP_VERBS; + + $ODD_RELATIONSHIP_VERBS[$relationship] = $verb; + } + + /** + * Return a mapping for relationship to a pre-registered ODD verb, or false. + * @param string $relationship The relationship + */ + function get_verb_from_relationship($relationship) + { + global $ODD_RELATIONSHIP_VERBS; + + if (isset($ODD_RELATIONSHIP_VERBS[$relationship])) + return $ODD_RELATIONSHIP_VERBS[$relationship]; + + return false; + } + + /** + * Return the relationship registered with a given verb, or false. + * @param string $verb The verb. + */ + function get_relationship_from_verb($verb) + { + global $ODD_RELATIONSHIP_VERBS; + + foreach ($ODD_RELATIONSHIP_VERBS as $k => $v) + if ($v == $verb) return $k; + + return false; + } + /** * Generate a UUID from a given GUID. * |