Method create_shared_view

atomic-repository/src/repository/views.rs:139–164

Create a new Shared view with no parent. Changes inserted into a Shared view go into the global `GRAPH` table and are permanently visible to all views. This is the correct scope to use for server-side push targets, where changes must be universally visible regardless of which run or request inserts them. Returns `ViewAlreadyExists` if the view already exists.

(&mut self, name: &str)

    ///
    /// Returns `ViewAlreadyExists` if the view already exists.
    pub fn create_shared_view(&mut self, name: &str) -> Result<(), RepositoryError> {
        ensure_workspace_dir(&self.dot_dir, name)?;

        let mut txn = self
            .pristine
            .write_txn()
            .map_err(|e| RepositoryError::Database(e.to_string()))?;

        if txn
            .get_view(name)
            .map_err(|e| RepositoryError::Database(e.to_string()))?
            .is_some()
        {
            return Err(RepositoryError::ViewAlreadyExists {
                name: name.to_string(),
            });
        }

        txn.create_view(name, ViewScope::Shared, None)
            .map_err(|e| RepositoryError::Database(e.to_string()))?;

        txn.commit()
            .map_err(|e| RepositoryError::Database(e.to_string()))?;

        Ok(())
    }

    /// Change a view's scope between Draft and Shared.
    ///