db

func (*Database) CheckNode ¶

func (d *Database) CheckNode(nodeID int64) error

CheckNode marks the node as completed, along with all its direct and indirect successors. The rest of the multitree is updated to reflect the change.

func (*Database) Close ¶

func (d *Database) Close() error

func (*Database) CreateChildOfDateNode ¶

func (d *Database) CreateChildOfDateNode(date, name string) (int64, error)

CreateChildOfDateNode atomically creates a node and links the date node to it. Date node is created if it doesn't exist.

func (*Database) CreateLink ¶

func (d *Database) CreateLink(originID, destID int64) (int64, error)

func (*Database) CreateLinkFromDateNode ¶

func (d *Database) CreateLinkFromDateNode(date string, destID int64) (int64, error)

CreateLinkFromDateNode atomically creates an link with date node as the origin. Date node is automatically created if it doesn't exist.

func (*Database) CreateNode ¶

func (d *Database) CreateNode(name string, parentID int64) (int64, error)

CreateNode creates a node and returns its ID. It updates the status of other nodes in the multitree if needed.

func (*Database) CreateTree ¶

func (d *Database) CreateTree(node *multitree.Node, parentID int64) (int64, error)

CreateTree saves an entire tree in the database and returns the root ID. It updates the status of other nodes in the multitree to reflect the change.

func (*Database) CreateTreeAsChildOfDateNode ¶

func (d *Database) CreateTreeAsChildOfDateNode(date string, node *multitree.Node) (int64, error)

CreateTreeAsChildOfDateNode atomically creates a tree and links the date node to its root. Date node is created if it doesn't exist.

func (*Database) DeleteLinkByEndpoints ¶

func (d *Database) DeleteLinkByEndpoints(originID, destID int64) error

func (*Database) DeleteNode ¶

func (d *Database) DeleteNode(id int64) ([]*multitree.Node, error)

DeleteNode deletes a single node and propagates the change to the rest of the multitree. It returns the node's orphaned successors.

func (*Database) DeleteNodeRecursive ¶

func (d *Database) DeleteNodeRecursive(id int64) ([]*multitree.Node, error)

DeleteNodeRecursive deletes the tree rooted at the given node and updates the multitree. Nodes that have parents outside of this tree are preserved. It returns a slice of all deleted nodes.

func (*Database) GetGraph ¶

func (d *Database) GetGraph(nodeID int64) (*multitree.Node, error)

GetGraph builds a multitree using Breadth-First Search, and returns the requested node as part of the multitree.

func (*Database) GetLink ¶

func (d *Database) GetLink(linkID int64) (*multitree.Link, error)

func (*Database) GetLinkByEndpoints ¶

func (d *Database) GetLinkByEndpoints(originID, destID int64) (*multitree.Link, error)

func (*Database) GetLinksByNodeID ¶

func (d *Database) GetLinksByNodeID(nodeID int64) ([]*multitree.Link, error)

GetLinksByNodeID gets the node's incoming and outcoming links.

func (*Database) GetNode ¶

func (d *Database) GetNode(id int64) (*multitree.Node, error)

GetNode returns the node with the given id, or nil if it doesn't exist.

func (*Database) GetNodeByAlias ¶

func (d *Database) GetNodeByAlias(alias string) (*multitree.Node, error)

GetNode returns the node with the given alias, or nil if it doesn't exist.

func (*Database) GetNodeByName ¶

func (d *Database) GetNodeByName(name string) (*multitree.Node, error)

GetNode returns the node with the given name, or nil if it doesn't exist.

func (*Database) GetRoots ¶

func (d *Database) GetRoots() ([]*multitree.Node, error)

GetRoots returns a slice of nodes that have no predecessors.

func (*Database) Open ¶

func (d *Database) Open(fp string) error

func (*Database) RenameNode ¶

func (d *Database) RenameNode(nodeID int64, name string) error

func (*Database) SetAlias ¶

func (d *Database) SetAlias(nodeID int64, alias string) error

func (*Database) UncheckNode ¶

func (d *Database) UncheckNode(nodeID int64) error

UncheckNode sets the node's status to inactive, along with all its direct and indirect successors. The rest of the multitree is updated to reflect the change.