Method make_topic

backend/src/git/topic.rs:746–775

(
        &self,
        parent: &RepoTopic,
        name: String,
    )

    }

    fn make_topic(
        &self,
        parent: &RepoTopic,
        name: String,
    ) -> Result<(RepoTopic, BTreeSet<ParentTopic>)> {
        let added = chrono::Utc::now();
        let id = ExternalId::make();
        let parent_topics = BTreeSet::from([parent.to_parent_topic()]);

        let topic = RepoTopic {
            api_version: API_VERSION.into(),
            metadata: RepoTopicMetadata {
                added,
                id,
                details: Some(RepoTopicDetails {
                    root: false,
                    synonyms: vec![Synonym {
                        added,
                        locale: self.locale.to_owned(),
                        name,
                    }],
                    timerange: None,
                }),
            },
            parent_topics: parent_topics.clone(),
            children: BTreeSet::new(),
        };

        Ok((topic, parent_topics))
    }

    fn ensure_topic(&self, mutation: &Mutation, topic_id: &ExternalId) -> RepoTopic {
        match mutation.fetch_topic(self.repo_id, topic_id) {