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---
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toc: menu
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---
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# Repository
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## `repository.find()`
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2021-10-29 15:09:58 +08:00
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查询数据,返回数组。无数据时为空数组,不返回 count。如果需要,请使用 [repository.findAndCount()](#repositoryfindandcount) 方法。
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##### Definition
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```ts
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interface find<M extends Sequelize.Model> {
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(options?: FindOptions): Promise<M[]>
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}
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interface FindOptions extends Sequelize.FindOptions {
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// 数据过滤
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filter?: FilterOptions;
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// 输出结果显示哪些字段
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fields?: string[];
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// 输出结果不显示哪些字段
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expect?: string[];
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// 附加字段,用于控制关系字段的输出
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appends?: string[];
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// 排序,字段前面加上 “-” 表示降序
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sort?: string[];
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}
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// 待补充
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type FilterOptions = any;
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```
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##### Examples
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###### 全览
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```ts
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await repository.find({
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// 过滤
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filter: {
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$and: [{ a: 5 }, { b: 6 }], // (a = 5) AND (b = 6)
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$or: [{ a: 5 }, { b: 6 }], // (a = 5) OR (b = 6)
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someAttribute: {
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// Basics
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$eq: 3, // = 3
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$ne: 20, // != 20
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$is: null, // IS NULL
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$not: true, // IS NOT TRUE
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$gt: 6, // > 6
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$gte: 6,
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},
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// 支持使用逗号间隔
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'someAttribute.$eq': 3,
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// 内嵌的,一般是关系数据
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nested: {
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someAttribute: {},
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},
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// 同上,也支持使用逗号间隔
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'nested.someAttribute': {
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// 同上
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},
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},
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// 字段白名单
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fields: [],
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// 附加字段,主要用于附加关系字段
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appends: [],
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// 字段黑名单
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expect: [],
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// 排序
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sort: ['-createdAt', 'updatedAt'],
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});
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```
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###### filter 参数示例说明
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以文章和标签为例,文章和标签的 collection 如下:
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```ts
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const Tag = db.collection({
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name: 'tags',
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fields: [
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{ type: 'string', name: 'name' },
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],
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});
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const Post = db.collection({
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name: 'posts',
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fields: [
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{ type: 'string', name: 'name' },
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{ type: 'text', name: 'content' },
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{ type: 'belongsToMany', name: 'tags' },
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],
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});
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```
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最简单的筛选过滤
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```ts
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await Post.repository.find({
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filter: {
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'name': 'post1',
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},
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});
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```
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支持多种 Operators,以 `$` 开头。[更多内容,查阅 Operators 章节](operators.md)
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```ts
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await Post.repository.find({
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filter: {
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'name.$includes': 'post1',
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// 等同于
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name: {
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$includes: 'post1',
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},
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},
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});
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```
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支持关系字段过滤,可以使用 dot 来表示层级结构
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```ts
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await Post.repository.find({
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filter: {
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'tags.name': 'tag1',
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// 等同于
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tags: {
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name: 'tag1',
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},
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},
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});
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```
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多个同一关系字段的过滤可以写在一起
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```ts
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await Post.repository.find({
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filter: {
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'tags': {
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'name.$includes': 'tag1',
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'createdAt.$dateOn': '2020-10-28',
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},
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},
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});
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```
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同时也支持 and、or 逻辑运算符
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```ts
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await Post.repository.find({
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filter: {
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$and: [
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// 一个 Object 只写一个条件
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{ name: 'post1' },
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// 支持关系字段(非常重要)
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{ 'tags.name.$includes': 'tag1' },
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{ 'tags.name.$includes': 'tag2' },
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],
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},
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});
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```
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###### sort 参数示例说明
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指定一组数据的排序,倒序时在字段前加上减号 `-`
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```ts
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await Post.repository.find({
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// 创建日期倒序
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sort: ['-createdAt'],
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});
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```
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可以设置多个排序规则
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```ts
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await Post.repository.find({
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// 创建日期倒序,ID 正序
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sort: ['-createdAt', 'id'],
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});
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```
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也可以是关系表的字段
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```ts
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await Post.repository.find({
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// 标签名正序,文章创建日期倒序
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sort: ['tags.name', '-createdAt'],
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});
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```
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###### fields 参数示例说明
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- `fields` 显示哪些字段
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- `expect` 不显示哪些字段
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- `appends` 附加哪些字段
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如果并未指定 fields,输出所有 Attributes,Associations 字段并不输出
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```ts
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await Post.repository.find();
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// [{ id, name, content, createdAt, updatedAt }]
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```
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只输出指定字段时,可以用 fields
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```ts
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await Post.repository.find({
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fields: ['name'],
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});
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// [{ name }]
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```
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当 fields 里有关系字段时,按默认情况输出
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```ts
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await Post.repository.find({
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fields: ['id', 'name', 'tags'],
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});
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// [{ id, name, tags: [{ id, name, createdAt, updatedAt }] }]
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```
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可以只输出关系数据的某个字段
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```ts
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await Post.repository.find({
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fields: ['id', 'name', 'tags.name'],
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});
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// [{ id, name, tags: [{ name }] }]
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```
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排除某些字段时,可以使用 expect
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```ts
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await Post.repository.find({
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expect: ['content'],
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});
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// [{ id, name, createdAt, updatedAt }]
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```
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Attributes 不变,只附加 Associations 进来时,可以使用 appends
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```ts
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await Post.repository.find({
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appends: ['tags'],
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});
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// [{ id, name, content, createdAt, updatedAt, tags: [{ id, name, createdAt, updatedAt }] }]
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```
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如果某个字段只用在 filter 里,但并没有出现在 fields 里,不应该被输出
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```ts
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await Post.repository.find({
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filter: {
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'tags.name': 'tag1',
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},
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});
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// 输出所有的 Attributes,但不输出 tags
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// [{ id, name, content, createdAt, updatedAt }]
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```
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如果某个字段只用在 sort 里,但并没有出现在 fields 里,也不应该被输出
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```ts
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await Post.repository.find({
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sort: ['-tags.createdAt']
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});
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// 输出所有的 Attributes,但不输出 tags
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// [{ id, name, content, createdAt, updatedAt }]
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```
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fields、appends、expect 同时出现时,优先处理 fields,再把 appends 的合并进来,最后处理 expect。
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fields 和 appends 同时出现时:
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```ts
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{
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fields: ['id', 'name'],
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appends: ['tags'],
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}
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// 等同于
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{
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fields: ['id', 'name', 'tags'],
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}
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// { id, name, tags: [ { id, name, createdAt, updatedAt } ] }
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```
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fields 和 expect 同时出现时,如果 expect 的 key 在 fields 里,需要排除掉
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```ts
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{
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fields: ['id', 'name'],
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expect: ['name'],
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}
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// { id }
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```
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fields 取了多个关联字段的子字段,但是 expect 把整个关联字段都排除了
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```ts
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{
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fields: ['id', 'name', 'tags.id', 'tags.name'],
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expect: ['tags'],
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}
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// tags 排除了,tags.id 和 tags.name 都不应该被输出
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// { id, name }
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```
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fields 和 expect 同时出现时,如果 expect 的 key 不在 fields 里,不处理。
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```ts
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{
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fields: ['id', 'name'],
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expect: ['tags.createdAt', 'tags.updatedAt'],
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}
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// { id, name }
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```
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fields、appends、expect 同时出现时:
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```ts
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|
{
|
|
|
|
|
fields: ['id', 'name'],
|
|
|
|
|
appends: ['tags'],
|
|
|
|
|
expect: ['tags.createdAt', 'tags.updatedAt'],
|
|
|
|
|
}
|
|
|
|
|
// { id, name, tags: [ { id, name } ] }
|
|
|
|
|
```
|
|
|
|
|
|
2021-10-29 15:09:58 +08:00
|
|
|
|
## `repository.findAndCount()`
|
2021-10-28 22:55:51 +08:00
|
|
|
|
|
|
|
|
|
按分页查询数据,并返回所有符合的数据总数。
|
|
|
|
|
|
|
|
|
|
##### Definition
|
|
|
|
|
|
|
|
|
|
```ts
|
2021-10-29 15:09:58 +08:00
|
|
|
|
interface findAndCount<M extends Sequelize.Model> {
|
|
|
|
|
(options?: FindAndCountOptions): Promise<[ M[], number ]>
|
2021-10-28 22:55:51 +08:00
|
|
|
|
}
|
|
|
|
|
|
2021-10-29 15:09:58 +08:00
|
|
|
|
interface FindAndCountOptions extends Sequelize.FindAndCountOptions {
|
2021-10-28 22:55:51 +08:00
|
|
|
|
// 数据过滤
|
|
|
|
|
filter?: FilterOptions;
|
|
|
|
|
// 输出结果显示哪些字段
|
|
|
|
|
fields?: string[];
|
|
|
|
|
// 输出结果不显示哪些字段
|
|
|
|
|
expect?: string[];
|
|
|
|
|
// 附加字段,用于控制关系字段的输出
|
|
|
|
|
appends?: string[];
|
|
|
|
|
// 排序,字段前面加上 “-” 表示降序
|
|
|
|
|
sort?: string[];
|
|
|
|
|
// 当前页,默认为 1
|
|
|
|
|
page?: number;
|
|
|
|
|
// 当前页最大数量,默认为 20
|
|
|
|
|
pageSize?: number;
|
|
|
|
|
}
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
##### Examples
|
|
|
|
|
|
2021-10-29 15:09:58 +08:00
|
|
|
|
大部分参数与 [repository.find()](#repositoryfind) 一致,所以这里只列举 page 和 pageSize 的例子。
|
2021-10-28 22:55:51 +08:00
|
|
|
|
|
|
|
|
|
不填写参数时,默认 page=1,pageSize=20。
|
|
|
|
|
|
|
|
|
|
```ts
|
2021-10-29 15:09:58 +08:00
|
|
|
|
await repository.findAndCount();
|
2021-10-28 22:55:51 +08:00
|
|
|
|
// [[{ id, name, content, createdAt, updatedAt }], 50]
|
|
|
|
|
|
2021-10-29 15:09:58 +08:00
|
|
|
|
const [models, count] = await repository.findAndCount();
|
2021-10-28 22:55:51 +08:00
|
|
|
|
```
|
|
|
|
|
|
2021-10-29 13:55:49 +08:00
|
|
|
|
指定页码和单页最大数量
|
|
|
|
|
|
|
|
|
|
```ts
|
2021-10-29 15:09:58 +08:00
|
|
|
|
await repository.findAndCount({
|
2021-10-29 13:55:49 +08:00
|
|
|
|
page: 1,
|
|
|
|
|
pageSize: 50,
|
|
|
|
|
});
|
|
|
|
|
// [[{ id, name, content, createdAt, updatedAt }], 50]
|
|
|
|
|
```
|
|
|
|
|
|
2021-10-28 22:55:51 +08:00
|
|
|
|
## `repository.findOne()`
|
|
|
|
|
|
|
|
|
|
##### Definition
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
interface findOne<M extends Sequelize.Model> {
|
2021-10-29 13:55:49 +08:00
|
|
|
|
(options?: FindOneOptions): Promise<[ M[], number ]>
|
2021-10-28 22:55:51 +08:00
|
|
|
|
}
|
|
|
|
|
|
2021-10-29 15:09:58 +08:00
|
|
|
|
interface FindOneOptions extends findOptions {
|
2021-10-28 22:55:51 +08:00
|
|
|
|
// 数据过滤
|
|
|
|
|
filter?: FilterOptions;
|
|
|
|
|
// 输出结果显示哪些字段
|
|
|
|
|
fields?: string[];
|
|
|
|
|
// 输出结果不显示哪些字段
|
|
|
|
|
expect?: string[];
|
|
|
|
|
// 附加字段,用于控制关系字段的输出
|
|
|
|
|
appends?: string[];
|
|
|
|
|
// 排序,字段前面加上 “-” 表示降序
|
|
|
|
|
sort?: string[];
|
|
|
|
|
// 通过 pk 过滤
|
|
|
|
|
filterByPk?: number | string;
|
|
|
|
|
}
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
##### Examples
|
|
|
|
|
|
2021-10-29 15:09:58 +08:00
|
|
|
|
大部分参数与 [repository.find()](#repositoryfind) 一致。这里只列举 filterByPk 的例子。
|
2021-10-28 22:55:51 +08:00
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
await repository.findOne({
|
|
|
|
|
filterByPk: 1,
|
|
|
|
|
// 等同于
|
|
|
|
|
filter: {
|
|
|
|
|
[Model.primaryKeyAttribute]: 1,
|
|
|
|
|
}
|
|
|
|
|
});
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
## repository.create()
|
2021-10-29 13:55:49 +08:00
|
|
|
|
|
|
|
|
|
创建数据
|
|
|
|
|
|
|
|
|
|
##### Definition
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
interface create<M extends Sequelize.Model> {
|
|
|
|
|
(options?: CreateOptions): Promise<M>
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
interface CreateOptions {
|
|
|
|
|
// 数据
|
|
|
|
|
values?: any;
|
|
|
|
|
// 字段白名单
|
|
|
|
|
whitelist?: string[];
|
|
|
|
|
// 字段黑名单
|
|
|
|
|
blacklist?: string[];
|
|
|
|
|
// 关系数据默认会新建并建立关联处理,如果是已存在的数据只关联,但不更新关系数据
|
2021-11-05 17:40:32 +08:00
|
|
|
|
// 如果需要更新关联数据,可以通过 updateAssociationValues 指定
|
|
|
|
|
updateAssociationValues?: string[];
|
2021-10-29 13:55:49 +08:00
|
|
|
|
}
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
##### Examples
|
|
|
|
|
|
|
|
|
|
例子之前,先定义几个 Collection 吧
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
db.collection({
|
|
|
|
|
name: 'users',
|
|
|
|
|
fields: [
|
|
|
|
|
{name: 'name', type: 'string'},
|
|
|
|
|
],
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
db.collection({
|
|
|
|
|
name: 'posts',
|
|
|
|
|
fields: [
|
|
|
|
|
{ type: 'string', name: 'name' },
|
|
|
|
|
{ type: 'belongsTo', name: 'user' },
|
|
|
|
|
{ type: 'belongsToMany', name: 'tags' },
|
|
|
|
|
{ type: 'hasMany', name: 'comments' },
|
|
|
|
|
],
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
db.collection({
|
|
|
|
|
name: 'tags',
|
|
|
|
|
fields: [
|
|
|
|
|
{ type: 'string', name: 'name' },
|
|
|
|
|
{ type: 'belongsToMany', name: 'posts' },
|
|
|
|
|
],
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
db.collection({
|
|
|
|
|
name: 'comments',
|
|
|
|
|
fields: [
|
|
|
|
|
{ type: 'string', name: 'name' },
|
|
|
|
|
],
|
|
|
|
|
});
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
新建数据,可以不指定 values。
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
const model = await repository.create();
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
values 必须是 Object。
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
await repository.create({
|
|
|
|
|
values: {
|
|
|
|
|
name: 'post1',
|
|
|
|
|
},
|
|
|
|
|
});
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
values 可以包含关系数据
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
await repository.create({
|
|
|
|
|
values: {
|
|
|
|
|
name: 'post1',
|
|
|
|
|
// 新建并关联
|
|
|
|
|
tags: [{ name: 'tag1' }],
|
|
|
|
|
},
|
|
|
|
|
});
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
关联字段,可以只提供关系约束值(一般是 id)
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
await repository.create({
|
|
|
|
|
values: {
|
|
|
|
|
name: 'post1',
|
|
|
|
|
// 关联 id=1 的 tag
|
|
|
|
|
tags: [1],
|
|
|
|
|
// 也可以这样,会自动识别
|
|
|
|
|
tags: 1,
|
|
|
|
|
},
|
|
|
|
|
});
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
可以设置 values 的白名单和黑名单
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
await repository.create({
|
|
|
|
|
values: {
|
|
|
|
|
name: 'post1',
|
|
|
|
|
// 关联 id=1 的 tag
|
|
|
|
|
tags: [1],
|
|
|
|
|
},
|
|
|
|
|
whitelist: ['name'],
|
|
|
|
|
});
|
|
|
|
|
```
|
|
|
|
|
|
2021-10-29 17:48:24 +08:00
|
|
|
|
指定哪些关联字段在建立关联的同时可以更新数据
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
// 原 tag=1 的数据
|
|
|
|
|
// { id: 1, name: 'tag1' }
|
|
|
|
|
|
|
|
|
|
await repository.create({
|
|
|
|
|
values: {
|
|
|
|
|
name: 'post1',
|
|
|
|
|
tags: [{
|
|
|
|
|
id: 1,
|
|
|
|
|
name: 'tag123', // name 与原数据不一样
|
|
|
|
|
}],
|
|
|
|
|
},
|
|
|
|
|
// 指定了 tags,建立关联时,也会同步修改 tag 数据
|
2021-11-05 17:40:32 +08:00
|
|
|
|
updateAssociationValues: ['tags'],
|
2021-10-29 17:48:24 +08:00
|
|
|
|
});
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
全览
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
await repository.create({
|
|
|
|
|
// 待存数据
|
|
|
|
|
values: {
|
|
|
|
|
a: 'a',
|
|
|
|
|
// 快速建立关联
|
|
|
|
|
o2o: 1, // 建立一对一关联
|
|
|
|
|
m2o: 1, // 建立多对一关联
|
|
|
|
|
o2m: [1,2] // 建立一对多关联
|
|
|
|
|
m2m: [1,2] // 建立多对多关联
|
|
|
|
|
// 新建关联数据并建立关联
|
|
|
|
|
o2o: {
|
|
|
|
|
key1: 'val1',
|
|
|
|
|
},
|
|
|
|
|
o2m: [{key1: 'val1'}, {key2: 'val2'}],
|
|
|
|
|
// 子表格数据
|
|
|
|
|
subTable: [
|
|
|
|
|
// 如果数据存在,更新处理
|
|
|
|
|
{id: 1, key1: 'val1111'},
|
|
|
|
|
// 如果数据不存在,直接创建并关联
|
|
|
|
|
{key2: 'val2'},
|
|
|
|
|
],
|
|
|
|
|
},
|
|
|
|
|
// 字段白名单
|
|
|
|
|
whitelist: [],
|
|
|
|
|
// 字段黑名单
|
|
|
|
|
blacklist: [],
|
|
|
|
|
// 关系数据默认会新建并建立关联处理,如果是已存在的数据只关联,但不更新关系数据
|
2021-11-05 17:40:32 +08:00
|
|
|
|
// 如果需要更新关联数据,可以通过 updateAssociationValues 指定
|
|
|
|
|
updateAssociationValues: ['subTable'],
|
2021-10-29 17:48:24 +08:00
|
|
|
|
});
|
|
|
|
|
```
|
2021-10-29 13:55:49 +08:00
|
|
|
|
|
2021-10-28 22:55:51 +08:00
|
|
|
|
## repository.update()
|
2021-10-29 17:48:24 +08:00
|
|
|
|
|
|
|
|
|
更新数据
|
|
|
|
|
|
|
|
|
|
##### Definition
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
interface update<M extends Sequelize.Model> {
|
|
|
|
|
(options: UpdateOptions): Promise<M>
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
interface UpdateOptions {
|
|
|
|
|
filter?: any;
|
|
|
|
|
filterByPk?: number | string;
|
|
|
|
|
// 数据
|
|
|
|
|
values?: any;
|
|
|
|
|
// 字段白名单
|
|
|
|
|
whitelist?: string[];
|
|
|
|
|
// 字段黑名单
|
|
|
|
|
blacklist?: string[];
|
|
|
|
|
// 关系数据默认会新建并建立关联处理,如果是已存在的数据只关联,但不更新关系数据
|
2021-11-05 17:40:32 +08:00
|
|
|
|
// 如果需要更新关联数据,可以通过 updateAssociationValues 指定
|
|
|
|
|
updateAssociationValues?: string[];
|
2021-10-29 17:48:24 +08:00
|
|
|
|
}
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
##### Examples
|
|
|
|
|
|
|
|
|
|
全部改
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
await repository.update({
|
|
|
|
|
values: {
|
|
|
|
|
a: 'b'
|
|
|
|
|
},
|
|
|
|
|
});
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
只改某条数据
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
await repository.update({
|
|
|
|
|
filterByPk: 1,
|
|
|
|
|
values: {
|
|
|
|
|
a: 'b'
|
|
|
|
|
},
|
|
|
|
|
});
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
指定范围修改
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
await repository.update({
|
|
|
|
|
filter: {
|
|
|
|
|
name: 'post1.1'
|
|
|
|
|
},
|
|
|
|
|
values: {
|
|
|
|
|
name: 'post1.2'
|
|
|
|
|
},
|
|
|
|
|
});
|
|
|
|
|
```
|
|
|
|
|
|
2021-10-28 22:55:51 +08:00
|
|
|
|
## repository.destroy()
|
2021-10-29 17:48:24 +08:00
|
|
|
|
|
|
|
|
|
删除数据
|
|
|
|
|
|
|
|
|
|
##### Definition
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
interface destroy {
|
|
|
|
|
(options?: number | string | number[] | string[] | DestroyOptions): Promise<boolean | boolean[]>
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
interface DestroyOptions {
|
|
|
|
|
filter?: any;
|
|
|
|
|
}
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
##### Examples
|
|
|
|
|
|
|
|
|
|
指定 primary key 值
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
repository.destroy(1);
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
批量 primary key 值
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
repository.destroy([1, 2, 3]);
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
复杂的 filter
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
repository.destroy({
|
|
|
|
|
filter: {},
|
|
|
|
|
});
|
|
|
|
|
```
|
|
|
|
|
|
2021-10-28 22:55:51 +08:00
|
|
|
|
## repository.relation().of()
|
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|
|
|
|
2021-10-29 17:48:24 +08:00
|
|
|
|
##### Definition
|
|
|
|
|
|
|
|
|
|
```ts
|
2021-11-11 10:43:50 +08:00
|
|
|
|
interface relation<R extends RelationRepository> {
|
2021-10-29 17:48:24 +08:00
|
|
|
|
(name: string): {
|
2021-11-11 10:43:50 +08:00
|
|
|
|
of: (parent: any): R;
|
2021-10-29 17:48:24 +08:00
|
|
|
|
}
|
|
|
|
|
}
|
2021-11-11 10:43:50 +08:00
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
##### Examples
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
const userPostsRepository = User.repository.relation<HasManyRepository>('posts').of(1);
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
RelationRepository 有四类,对应四种关系的处理:
|
|
|
|
|
|
|
|
|
|
- HasOneRepository
|
|
|
|
|
- HasManyRepository
|
|
|
|
|
- BelongsToRepository
|
|
|
|
|
- BelongsToManyRepository
|
|
|
|
|
|
|
|
|
|
### HasOne
|
2021-10-29 17:48:24 +08:00
|
|
|
|
|
2021-11-11 10:43:50 +08:00
|
|
|
|
##### Definition
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
interface IHasOneRepository<M extends Sequelize.Model> {
|
|
|
|
|
// 不需要 findOne,find 就是 findOne
|
|
|
|
|
find(options?: HasOneFindOptions): Promise<M>;
|
|
|
|
|
// 新增并关联,如果存在关联,解除之后,与新数据建立关联
|
|
|
|
|
create(options?: CreateOptions): Promise<M>;
|
|
|
|
|
// 更新
|
|
|
|
|
update(options?: UpdateOptions): Promise<M>;
|
|
|
|
|
// 删除
|
|
|
|
|
destroy(): Promise<Boolean>;
|
|
|
|
|
// 建立关联
|
|
|
|
|
set(primaryKey: any): Promise<void>;
|
|
|
|
|
// 移除关联
|
|
|
|
|
remove(): Promise<void>;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
interface HasOneFindOptions {
|
|
|
|
|
fields?: string[];
|
|
|
|
|
expect?: string[];
|
|
|
|
|
appends?: string[];
|
2021-10-29 17:48:24 +08:00
|
|
|
|
}
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
##### Examples
|
|
|
|
|
|
2021-11-11 10:43:50 +08:00
|
|
|
|
以 user.profile 为例
|
2021-10-29 17:48:24 +08:00
|
|
|
|
|
|
|
|
|
```ts
|
2021-11-11 10:43:50 +08:00
|
|
|
|
// id = 1 的 user 的 profile
|
|
|
|
|
const userProfileRepository = User.repository.relation<HasOneRepository>('profile').of(1);
|
2021-10-29 17:48:24 +08:00
|
|
|
|
|
2021-11-11 10:43:50 +08:00
|
|
|
|
const profile = await userProfileRepository.find({
|
|
|
|
|
fields,
|
|
|
|
|
appends,
|
|
|
|
|
expect,
|
|
|
|
|
});
|
|
|
|
|
```
|
2021-10-29 17:48:24 +08:00
|
|
|
|
|
2021-11-11 10:43:50 +08:00
|
|
|
|
### BelongsTo
|
2021-10-29 17:48:24 +08:00
|
|
|
|
|
2021-11-11 10:43:50 +08:00
|
|
|
|
##### Definition
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
interface IBelongsToRepository<M extends Sequelize.Model> {
|
|
|
|
|
// 不需要 findOne,find 就是 findOne
|
|
|
|
|
find(options?: BelongsToFindOptions): Promise<M>;
|
|
|
|
|
// 新增并关联,如果存在关联,解除之后,与新数据建立关联
|
|
|
|
|
create(options?: CreateOptions): Promise<M>;
|
|
|
|
|
// 更新
|
|
|
|
|
update(options?: UpdateOptions): Promise<M>;
|
|
|
|
|
// 删除
|
|
|
|
|
destroy(): Promise<Boolean>;
|
|
|
|
|
// 建立关联
|
|
|
|
|
set(primaryKey: any): Promise<void>;
|
|
|
|
|
// 移除关联
|
|
|
|
|
remove(): Promise<void>;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
interface HasOneFindOptions {
|
|
|
|
|
fields?: string[];
|
|
|
|
|
expect?: string[];
|
|
|
|
|
appends?: string[];
|
|
|
|
|
}
|
|
|
|
|
```
|
2021-10-29 17:48:24 +08:00
|
|
|
|
|
2021-11-11 10:43:50 +08:00
|
|
|
|
##### Examples
|
|
|
|
|
|
|
|
|
|
以 posts.user 为例
|
2021-10-29 17:48:24 +08:00
|
|
|
|
|
2021-11-11 10:43:50 +08:00
|
|
|
|
```ts
|
|
|
|
|
// id = 1 的 post 的 user
|
|
|
|
|
const postUserRepository = Post.repository.relation<BelongsToRepository>('user').of(1);
|
2021-10-29 17:48:24 +08:00
|
|
|
|
|
2021-11-11 10:43:50 +08:00
|
|
|
|
const user = await postUserRepository.find({
|
|
|
|
|
fields,
|
|
|
|
|
appends,
|
|
|
|
|
expect,
|
|
|
|
|
});
|
|
|
|
|
```
|
2021-10-29 17:48:24 +08:00
|
|
|
|
|
2021-11-11 10:43:50 +08:00
|
|
|
|
### HasMany
|
|
|
|
|
|
|
|
|
|
##### Definition
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
interface IHasManyRepository<M extends Sequelize.Model> {
|
|
|
|
|
find(options?: FindOptions): Promise<M>;
|
|
|
|
|
findAndCount(options?: FindAndCountOptions): Promise<[ M[], number ]>
|
|
|
|
|
findOne(options?: FindOneOptions): Promise<M>;
|
|
|
|
|
// 新增并关联
|
|
|
|
|
create(options?: CreateOptions): Promise<M>;
|
|
|
|
|
// 更新
|
|
|
|
|
update(options?: UpdateOptions): Promise<M>;
|
|
|
|
|
// 删除
|
|
|
|
|
destroy(options?: number | string | number[] | string[] | DestroyOptions): Promise<Boolean>;
|
|
|
|
|
// 建立关联
|
|
|
|
|
set(primaryKey: any | primaryKeys: any[]): Promise<void>;
|
|
|
|
|
// 附加关联
|
|
|
|
|
add(primaryKey: any | primaryKeys: any[]): Promise<void>;
|
|
|
|
|
// 移除关联
|
|
|
|
|
remove(primaryKey: any | primaryKeys: any[]): Promise<void>;
|
|
|
|
|
}
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
##### Examples
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
repository.find();
|
|
|
|
|
repository.create();
|
|
|
|
|
repository.update({
|
|
|
|
|
filterByPk: 1,
|
|
|
|
|
values: {},
|
|
|
|
|
});
|
|
|
|
|
repository.set(1);
|
|
|
|
|
repository.set([1, 2]);
|
|
|
|
|
repository.add([3]);
|
|
|
|
|
repository.remove(1);
|
|
|
|
|
repository.remove([2, 3]);
|
2021-10-29 17:48:24 +08:00
|
|
|
|
```
|
2021-11-11 10:43:50 +08:00
|
|
|
|
|
|
|
|
|
### BelongsToMany
|
|
|
|
|
|
|
|
|
|
##### Definition
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
interface IBelongsToManyRepository<M extends Sequelize.Model> {
|
|
|
|
|
find(options?: FindOptions): Promise<M[]>;
|
|
|
|
|
findAndCount(options?: FindAndCountOptions): Promise<[ M[], number ]>
|
|
|
|
|
findOne(options?: FindOneOptions): Promise<M>;
|
|
|
|
|
// 新增并关联,存在中间表数据
|
|
|
|
|
create(options?: CreateBelongsToManyOptions): Promise<M>;
|
|
|
|
|
// 更新,存在中间表数据
|
|
|
|
|
update(options?: UpdateOptions): Promise<M>;
|
|
|
|
|
// 删除
|
|
|
|
|
destroy(options?: number | string | number[] | string[] | DestroyOptions): Promise<Boolean>;
|
|
|
|
|
// 建立关联
|
|
|
|
|
set(primaryKey: any | primaryKeys: any[]): Promise<void>;
|
|
|
|
|
// 附加关联,存在中间表数据
|
|
|
|
|
add(primaryKey: any | primaryKeys: any[]): Promise<void>;
|
|
|
|
|
// 移除关联
|
|
|
|
|
remove(primaryKey: any | primaryKeys: any[]): Promise<void>;
|
|
|
|
|
toggle(primaryKey: any): Promise<void>;
|
|
|
|
|
}
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
##### Examples
|
|
|
|
|
|
|
|
|
|
多对多关系多了中间表的处理
|
|
|
|
|
|
|
|
|
|
```ts
|
|
|
|
|
repository.set(1);
|
|
|
|
|
repository.set([1,2,3]);
|
|
|
|
|
repository.set([
|
|
|
|
|
[1, {/* 中间表数据 */}],
|
|
|
|
|
[2, {/* 中间表数据 */}],
|
|
|
|
|
[3, {/* 中间表数据 */}],
|
|
|
|
|
]);
|
|
|
|
|
```
|