Checking a record

To check a record you need to get its instance before.

const someTag = await Tag.find(123);
const someOtherTag = await Tag.find(987);

if (someTag.isLeaf()) { /* do something */ }
// or
if (someTag.isValidNode()) { /* do something */ }
// or
if (someTag.isEqualTo(someOtherTag)) { /* do something */ }
// or
if (someTag.isDescendantOf(someOtherTag)) { /* do something */ }
// or another function from the list

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Let's call the Model as Model and the instance of that model as record.

Test if node is leaf

Check if the node is leaf (doesn't have children)

record.isLeaf(): bool

Test if node is root

Check if the node is root

record.isRoot(): bool

Check if node is equal

Check if the node is equal to the supplied node

record.isEqualTo(node): bool

Check if node is descendant

Check if the node is descendant of the supplied node

record.isDescendantOf(node): bool

Check if node is descendant or sibling

Check if the node is descendant or sibling to supplied node

record.isDescendantOfOrEqualTo(node): bool

Check if node is ancestor

Check if the node is ancestor of the supplied node

record.isAncestorOf(node): bool

Check if node is valid

Check if the node is valid. It checks the supplied node, or the source node otherwise.

record.isValidNode(node = null): bool