Struct ViewDefinition 

pub struct ViewDefinition {
    pub resource_type: Option<String>,
    pub url: Option<String>,
    pub name: Option<String>,
    pub status: Option<String>,
    pub resource: String,
    pub description: Option<String>,
    pub profile: Vec<String>,
    pub fhir_version: Vec<String>,
    pub select: Vec<SelectColumn>,
    pub where_: Vec<WhereClause>,
    pub constant: Vec<Constant>,
}

A ViewDefinition resource that defines a tabular view over FHIR data.

ViewDefinitions specify how to transform FHIR resources into flat, tabular data suitable for SQL queries and analytics.

Fields

resource_type: Option<String>

The FHIR resource type (always “ViewDefinition” when present).

Optional so that partial ViewDefinition objects (as used by the SQL-on-FHIR conformance test suite) parse without a wrapper.

url: Option<String>

Canonical URL identifying this ViewDefinition.

name: Option<String>

Human-readable name for the view.

status: Option<String>

Publication status: draft | active | retired | unknown.

resource: String

The FHIR resource type this view is based on (e.g., “Patient”, “Observation”).

description: Option<String>

Description of the view’s purpose.

profile: Vec<String>

Target FHIR profiles this view executes against.

fhir_version: Vec<String>

Applicable FHIR versions for this view.

select: Vec<SelectColumn>

The columns and nested selects to include in the view.

where_: Vec<WhereClause>

Filter conditions to apply to the view. Note: Named where_ because where is a Rust reserved keyword.

constant: Vec<Constant>

Constants that can be referenced in FHIRPath expressions.

Implementations

impl ViewDefinition

pub fn from_json(value: &Value) -> Result<Self, Error>

Parse a ViewDefinition from a JSON Value.

Errors

Returns an error if the JSON is not a valid ViewDefinition.

pub fn parse(s: &str) -> Result<Self, Error>

Parse a ViewDefinition from a JSON string.

Errors

Returns an error if the string is not valid JSON or not a valid ViewDefinition.

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

Get the list of all column names defined in this view.

Trait Implementations

impl Clone for ViewDefinition

fn clone(&self) -> ViewDefinition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ViewDefinition

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ViewDefinition

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ViewDefinition

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.