Struct ContentMetadata 

pub struct ContentMetadata {
    pub content_type: ContentTypeId,
    pub title: String,
    pub description: Option<String>,
    pub size: usize,
    pub row_count: Option<usize>,
    pub schema: Option<ContentSchema>,
    pub source: Option<String>,
    pub custom: HashMap<String, Value>,
}

Metadata associated with serveable content

Fields

content_type: ContentTypeId

Content type identifier

title: String

Human-readable title

description: Option<String>

Optional description

size: usize

Content size in bytes

row_count: Option<usize>

Number of rows (for tabular data)

schema: Option<ContentSchema>

Content schema (if applicable)

source: Option<String>

Source information (URL, file path, or “clipboard”)

custom: HashMap<String, Value>

Additional custom metadata

Implementations

impl ContentMetadata

pub fn new( content_type: ContentTypeId, title: impl Into<String>, size: usize, ) -> Self

Create new metadata with required fields

pub fn with_description(self, description: impl Into<String>) -> Self

Set description

pub fn with_row_count(self, count: usize) -> Self

Set row count

pub fn with_schema(self, schema: ContentSchema) -> Self

Set schema

pub fn with_source(self, source: impl Into<String>) -> Self

Set source

pub fn with_custom(self, key: impl Into<String>, value: Value) -> Self

Add custom metadata

Trait Implementations

impl Clone for ContentMetadata

fn clone(&self) -> ContentMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContentMetadata

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ContentMetadata

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ContentMetadata

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

where __S: Serializer,

Serialize this value into the given Serde serializer.