oximod 0.1.11

MongoDB ODM for Rust inspired by Mongoose
Documentation 
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use futures_util::stream::StreamExt;
use mongodb::bson::{ doc, oid::ObjectId };
use oximod::Model;
use serde::{ Deserialize, Serialize };
use testresult::TestResult;

mod common;
use common::init;

// Run test: cargo nextest run aggregates_documents_correctly
#[tokio::test]
async fn aggregates_documents_correctly() -> TestResult {
    init().await;

    #[derive(Model, Serialize, Deserialize, Debug)]
    #[db("test")]
    #[collection("logs_for_aggregates_documents_correctly")]
    pub struct LogEntry {
        #[serde(skip_serializing_if = "Option::is_none")]
        _id: Option<ObjectId>,
        level: String,
        message: String,
    }

    LogEntry::clear().await?;

    let logs = vec![
        LogEntry::default().level("INFO".to_string()).message("Startup complete".to_string()),
        LogEntry::default().level("ERROR".to_string()).message("Failed to connect".to_string()),
        LogEntry::default().level("INFO".to_string()).message("Listening on port 3000".to_string())
    ];

    for log in logs {
        log.save().await?;
    }

    let pipeline = vec![doc! { "$match": { "level": "INFO" } }, doc! { "$count": "info_count" }];

    let mut cursor = LogEntry::aggregate(pipeline).await?;
    let result = cursor.next().await.expect("Expected at least one document")?;
    let count = result.get_i32("info_count").expect("Expected 'info_count' field");

    assert_eq!(count, 2);

    Ok(())
}

// Run test: cargo nextest run aggregation_with_no_matches_returns_empty
#[tokio::test]
async fn aggregation_with_no_matches_returns_empty() -> TestResult {
    init().await;

    #[derive(Model, Serialize, Deserialize, Debug)]
    #[db("test")]
    #[collection("logs_for_aggregation_no_matches")]
    pub struct LogEntry {
        #[serde(skip_serializing_if = "Option::is_none")]
        _id: Option<ObjectId>,
        level: String,
        message: String,
    }

    LogEntry::clear().await?;

    let logs = vec![
        LogEntry::default().level("INFO".to_string()).message("Startup complete".to_string()),
        LogEntry::default().level("ERROR".to_string()).message("Failed to connect".to_string())
    ];

    for log in logs {
        log.save().await?;
    }

    // Query for a level that doesn't exist
    let pipeline = vec![doc! { "$match": { "level": "DEBUG" } }, doc! { "$count": "debug_count" }];

    let mut cursor = LogEntry::aggregate(pipeline).await?;
    assert!(cursor.next().await.is_none(), "Expected no documents in aggregation result");

    Ok(())
}

// Run test: cargo nextest run aggregates_count_emails_ending_with_com_including_missing_emails
#[tokio::test]
async fn aggregates_count_emails_ending_with_com_including_missing_emails() -> TestResult {
    init().await;

    #[derive(Model, Serialize, Deserialize, Debug)]
    #[db("test")]
    #[collection("logs_for_aggregates_count_emails_ending_with_com")]
    pub struct LogEntry {
        #[serde(skip_serializing_if = "Option::is_none")]
        _id: Option<ObjectId>,

        level: String,
        message: String,

        #[validate(email)]
        email: Option<String>,
    }

    LogEntry::clear().await?;

    let logs = vec![
        LogEntry::default()
            .level("INFO".to_string())
            .message("Startup complete".to_string())
            .email("info1@example.com".to_string()),

        LogEntry::default()
            .level("INFO".to_string())
            .message("Listening on port 3000".to_string())
            .email("info2@example.org".to_string()),

        LogEntry::default()
            .level("ERROR".to_string())
            .message("Failed to connect".to_string())
            .email("error@example.com".to_string()),

        LogEntry::default()
            .level("WARN".to_string())
            .message("No email set for this log".to_string()), // email == None

        LogEntry::default()
            .level("DEBUG".to_string())
            .message("Another log with no email".to_string()) // email == None
    ];

    for log in logs {
        log.save().await?;
    }

    // Aggregate: count documents with emails ending in `.com`
    let pipeline = vec![
        doc! { "$match": { "email": { "$regex": "\\.com$" } } },
        doc! { "$count": "com_count" }
    ];

    let mut cursor = LogEntry::aggregate(pipeline).await?;
    let result = cursor.next().await.expect("Expected at least one document")?;
    let count = result.get_i32("com_count").expect("Expected 'com_count' field");

    assert_eq!(count, 2);

    Ok(())
}