@acai/query 中文文档教程

Question

Açaí's Framework query builder

一个简单的模块化、可扩展的查询构建器，可让您轻松切换策略，由 Açaí Framework 使用和创建。

Supports

• [x] MySQL
• [x] PostgreSQL
• [ ] mongo
• [ ] sqlite

Installation

npm

npm install --save @acai/query

yarn

yarn add @acai/query

Usage

Setup

您需要做的第一件事是设置您的查询，您可以轻松定义您的默认查询或仅设置一个如下：

import query, { setDefault, addQuery } from "@acai/query";

// Add query of sql type
await addQuery("secondary", "sql", {
  /* sql config */
});
const sqlquery = query("secondary");

// or setup a default query so you can easily import
await setDefaultQuery("pg", {
  /* Optional sql query settings, if you want to pass any */
});

// now every time you call query without arguments, it will look for the default query
const pgquery = query(); // <-- this is a postgreSQL query builder

Querying

您可以使用查询轻松搜索选择

import query from "@acai/query";

const results = await query()
  .table("people")
  .where("id", 5)
  .get(["name", "age"]);

我们的查询构建器巧妙地构建您的原始字符串查询，这样您就不会不必担心细节，例如：

await query().table("people").where("id", 5).where("name", "Robert").get();

// will output:
// SELECT FROM people WHERE id = 5 AND name = Robert

await query().table("people").where("id", 2).orWhere("name", "Robert").get();

// will output:
// SELECT FROM people WHERE id = 5 OR name = Robert

Inserting

import query from "@acai/query";

await query().table("people").insert({
  name: "John",
  surname: "Doe",
  age: 32,
});

Updating

import query from "@acai/query";

await query().table("people").where("id", 5).update({
  name: "John",
});

Deleting

import query from "@acai/query";

await query().table("people").where("id", 5).delete();