Struct RdmCollection 

pub struct RdmCollection {
    pub id: String,
    pub name: Option<String>,
    /* private fields */
}

A collection of RDM concepts

Fields

id: String

Collection ID

name: Option<String>

Collection name (optional, for display)

Implementations

impl RdmCollection

pub fn new(id: String) -> Self

pub fn with_name(id: String, name: String) -> Self

Create a new collection with a name

pub fn add_concept(&mut self, concept: RdmConcept)

Add a concept to the collection

This also builds the value index for all labels in the concept. If a label has a placeholder ID (“pending”), a deterministic ID is generated.

pub fn get_top_concepts(&self) -> Vec<&RdmConcept>

Get top-level concepts (no broader)

pub fn get_concept(&self, concept_id: &str) -> Option<&RdmConcept>

Get a concept by ID

pub fn get_concept_mut(&mut self, concept_id: &str) -> Option<&mut RdmConcept>

Get a mutable concept by ID

pub fn get_label(&self, concept_id: &str, language: &str) -> Option<String>

Get the label for a concept in this collection

pub fn from_concepts_json(id: String, json: &str) -> Result<Self, String>

Parse collection from JSON array of concepts

pub fn len(&self) -> usize

Get the number of concepts in this collection

pub fn is_empty(&self) -> bool

Check if the collection is empty

pub fn has_concept(&self, concept_id: &str) -> bool

Check if a concept exists in the collection

pub fn get_concept_ids(&self) -> Vec<&String>

Get all concept IDs

pub fn get_parent_id(&self, concept_id: &str) -> Option<String>

Get the first parent ID for a concept (from broader field)

Returns None if the concept doesn’t exist or has no parent (top-level concept). SKOS concepts can have multiple parents; this returns only the first one.

pub fn get_value_by_id(&self, value_id: &str) -> Option<&RdmValue>

Look up a value by its VALUE ID

This is the primary lookup method used by ViewModels. Returns None if the value ID is not found in this collection.

pub fn get_concept_id_for_value(&self, value_id: &str) -> Option<&str>

Get concept ID from value ID

Returns the concept ID that contains the given value ID.

pub fn has_value(&self, value_id: &str) -> bool

Check if a value ID exists in this collection

pub fn get_value_ids(&self) -> Vec<&String>

Get all value IDs in this collection

pub fn find_by_label(&self, label: &str) -> Option<&RdmConcept>

Find a concept by exact label match (case-insensitive)

Searches pref_label and alt_labels across all languages. Returns the first match if found. When multiple concepts share the same label (common in hierarchical collections like administrative areas), a deterministic result is returned by selecting the concept with the lexicographically smallest ID.

pub fn find_all_by_label(&self, label: &str) -> Vec<&RdmConcept>

Find all concepts by exact label match (case-insensitive)

pub fn search(&self, query: &str, language: Option<&str>) -> Vec<&RdmConcept>

Search concepts by label prefix (case-insensitive)

Trait Implementations

impl Clone for RdmCollection

fn clone(&self) -> RdmCollection

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RdmCollection

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for RdmCollection

fn default() -> RdmCollection

Returns the “default value” for a type.