Struct CountOperation 

pub struct CountOperation<E: QueryEngine, M: Model> { /* private fields */ }

A count operation for counting records.

Example

let count = client
    .user()
    .count()
    .r#where(user::active::equals(true))
    .exec()
    .await?;

Implementations

impl<E: QueryEngine, M: Model> CountOperation<E, M>

pub fn new(engine: E) -> Self

Create a new Count operation.

pub fn where(self, filter: impl Into<Filter>) -> Self

Add a filter condition.

pub fn distinct(self, column: impl Into<String>) -> Self

Count distinct values of a column.

pub fn build_sql(&self) -> (String, Vec<FilterValue>)

Build the SQL query.

pub async fn exec(self) -> QueryResult<u64>

Execute the count query.