KitX - Lightweight SQL Builder for Rust

A minimalistic SQL builder library based on sqlx, supporting SQLite, MySQL/MariaDB, and PostgreSQL. It offers efficient database operations with soft delete capabilities and global filters, enabling developers to interact with databases more effectively.

Features

Core Functionality

• Efficient CRUD Operations
  insert_one, insert_many, update_one, update_many, delete_one, delete_many with transaction support

• Advanced Queries
  fetch_all, fetch_by_key, fetch_one, fetch_paginated, fetch_by_cursor, exists, count

• Soft Delete Management
  restore_one, restore_many with global configuration

• Flexible Query Building
  Supports JOINs, CASE WHEN, aggregations, and custom SQL extensions

Key Advantages

• 🚀 No ORM Overhead - Direct SQL interaction with builder pattern
• 🔧 Field Access API - Utilizes field_access for field operations
• 🌍 Global Filters - Apply tenant ID or soft delete filters across all queries
• 📦 Extensible - Easily add custom operations and query modifiers

Quick Start

1. Add Dependency

# Default SQL Builder, completely decoupled from any external libraries.
kitx = "0.0.8"

# For SQLite only
kitx = { version = "0.0.8", features = ["sqlite"] }

# For MySQL/MariaDB only
kitx = { version = "0.0.8", features = ["mysql"] }

# For PostgreSQL only
kitx = { version = "0.0.8", features = ["postgres"] }

2. Basic Usage

use kitx::sqlite::{sql::QueryBuilder, sql::field, operations::Operations};

// SQL Builder Example
// AND and OR conditions can be applied either within filter clauses or directly in the builder.
let query = QueryBuilder::select("users", &["id", "name"])
    .filter(field("age").eq(23))
    .filter(field("salary").gt(4500))
    .or(field("status").in_vec(vec!["active", "pending"]))
    .order_by("created_at", false)
    .build_mut().0;

// CRUD Operations
let op = Operations::new("articles", ("article_id", true));
let article = Article {
    id: 42,
    title: "Rust Best Practices".into(),
    content: "...".into(),
};

// Insert with transaction
op.insert_one(article, true).await?;

3. Pagination Example

let results = op.fetch_paginated(10, 2, QueryCondition.empty()).await?;

let results = op.fetch_by_cursor(10, QueryCondition.from(..)).await?;

4. Optional: Global Configuration

// Soft delete configuration
set_global_soft_delete_field("deleted_at", vec!["audit_logs"]);

// Global_filter is applied on a per-thread basis.
// Multi-tenant filtering
set_global_filter(field("tenant_id").eq(123)), vec!["system_metrics"]);

License

MIT License