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//! Deletes a single entry in the specified collection.
//! 
//! Uses the ObjectID (_id) field of the object and removes it from the collection.
//! 
//! # Examples
//! 
//! ```
//!     use mungos::{Mungos}
//!     use serde::{Serialize, Deserialize}
//!     
//!     #[derive(Debug, Serialize, Deserialize)]
//!     struct Item {  
//!         field: String
//!     }
//! 
//!     let db = Mungos.new("uri", "app name", timeout).await;
//!     let collection = db.connection::<Item>("db name", "collection name");
//!     
//!     let id = "...";
//!     collection.delete_one(id).await.unwrap();
//! 
//! ```
//! 

use crate::Collection;
use mongodb::{
    bson::{doc, oid::ObjectId},
    error::Result,
};
use std::str::FromStr;

impl<T> Collection<T> {
    pub async fn delete_one(&self, id: &str) -> Result<String> {
        let filter = doc! { "_id": ObjectId::from_str(id).unwrap() };
        self.collection.delete_one(filter, None).await?;
        Ok(id.to_string())
    }
}