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eagle-breeze

v1.2.0

Published

like mongo

Readme

Eagle Breeze

SQL语句生成库,可以像Mongoose一样使用结构化参数生成SQL参数化查询语句

Features

  • 支持SELECT/INSERT/UPDATE/DELETE语句生成
  • 参数化查询防止SQL注入
  • where条件支持
    • '$gt': '>';
    • '$lt': '<';
    • '$gte': '>=';
    • '$lte': '<=';
    • '$neq': '<>';
    • '$regex': 'REGEXP';
    • '$like': 'LIKE';

注意:

  • 目前暂不支持复杂嵌套条件的查询语句生成
  • 目前暂不支持JOIN查询语句生成
  • 目前暂不支持聚合函数语句生成
  • 目前暂不支持别名语句生成
  • 目前暂不支持子字段查询语句生成
const filter = {
  $or: [
    { status: 'active', rating: { $gte: 4 } },
    { featured: true }
  ]
};

Usage

selectSql 查询语句

// 基础用法
selectSql(table: string, filter: any, options?: QueryOptions): { sql: string, params: any[] };

// 带数据库名称
selectSql(dbname: string, table: string, filter: any, options?: QueryOptions): { sql: string, params: any[] };

// 示例
const { sql, params } = Sql.selectSql('users', { age: { $gt: 18 } }, { 
  select: ['name', 'age'],
  sort: { age: 1 },
  limit: 10
});
/* 生成结果:
SQL: SELECT `name`, `age` FROM `users` WHERE `age` > ? ORDER BY `age` ASC LIMIT 10
Params: [18]
*/

insertSql 插入语句

insertSql(table: string, data: any): { sql: string, params: any[] };
insertSql(dbname: string, table: string, data: any): { sql: string, params: any[] };

// 示例
const { sql, params } = Sql.insertSql('products', {
  name: 'Laptop',
  price: 2999
});
/* 生成结果:
SQL: INSERT INTO `products` (`name`, `price`) VALUES (?, ?)
Params: ['Laptop', 2999]
*/

bulkInsertSql 批量插入语句

bulkInsertSql(table: string, data: any[]): { sql: string, params: any[] };

// 示例
const { sql, params } = Sql.bulkInsertSql('employees', [
  { name: 'Alice', role: 'dev' },
  { name: 'Bob', role: 'test' }
]);
// SQL: INSERT INTO `employees` (`name`, `role`) VALUES (?, ?), (?, ?)
// Params: ['Alice', 'dev', 'Bob', 'test']

updateSql 更新语句

updateSql(table: string, filter: any, update: any): { sql: string, params: any[] };

// 示例
const { sql, params } = Sql.updateSql('orders', 
  { status: 'pending' },
  { total: 999, status: 'completed' }
);
// SQL: UPDATE `orders` SET `total` = ?, `status` = ? WHERE `status` = ?
// Params: [999, 'completed', 'pending']

deleteSql 删除语句

deleteSql(table: string, filter: any): { sql: string, params: any[] };

// 示例
const { sql, params } = Sql.deleteSql('logs', {
  createdAt: { $lt: '2023-01-01' }
});
// SQL: DELETE FROM `logs` WHERE `createdAt` < ?
// Params: ['2023-01-01']