我对这些关系有点困惑,因为我习惯通过 id 保存关系,而我发现的文档和示例建议获取整个对象并使用它(这不是很奇怪吗???)
我在 github 上发现了这个问题(https://github.com/typeorm/typeorm/issues/447),他们建议使用仅具有 id 属性的对象,但它是从 2017 年开始的。这是一个好方法吗?做吗?这仍然是唯一的方法吗?(我觉得这很蹩脚)
async create( @Body() product: Product) {
product.category = <any>{ id: product.category };
return { payload: await this.repository.persist(product) };
}
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另一位建议将该列命名为categoryId,它将按预期工作(使用 id 而不是 object),但为什么呢?这个名字有什么关系??
@Entity()
class Product {
@Column({ type: "int", nullable: true })
categoryId: number;
@ManyToOne(type => Category)
@JoinColumn({ name: "categoryId" })
category: Category;
}
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我很困惑,请帮忙^_^
我昨天才开始使用带有角度的 cypress.io,正如文档所说,我正在使用属性 data-cy 专门针对元素
<div data-cy="myelement">Hello</div>
cy.get("[data-cy=myelement]")
问题是如果我想动态绑定它,angular 无法识别 data-cy 属性
<div *ngIf="user$ | async as user" [data-cy]="user.name">Online</div>
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我是否必须创建一个个人指令来动态添加该属性?或者有更好的方法吗?
我有板条箱oauth2(v4.1.0)和sqlx[json](v0.5.5):
[dependencies]
oauth2 = "4.1.0"
sqlx = { version = "0.5.5", features = ["json"] }
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当尝试构建时,我收到以下错误:
error: cyclic package dependency: package `ahash v0.7.4` depends on itself. Cycle:
package `ahash v0.7.4`
... which is depended on by `hashbrown v0.11.2`
... which is depended on by `indexmap v1.7.0`
... which is depended on by `serde_json v1.0.64`
... which is depended on by `wasm-bindgen v0.2.74`
... which is depended on by `js-sys v0.3.51`
... which is depended on by …Run Code Online (Sandbox Code Playgroud) 这是svg https://gist.github.com/Mautriz/8a936e0d1df136459d2c7f133d9b50d9
它位于 html 同一文件夹内名为“test.svg”的文件中
<svg height="400" width="400">
<use xlink:href="test.svg"></use>
</svg>
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我尝试过使用或不使用 xlink、相对路径和绝对路径,我缺少什么?
我刚刚从一篇文章中复制了这段代码
import { Injectable } from "@angular/core";
import {
HttpEvent,
HttpInterceptor,
HttpHandler,
HttpRequest,
HttpErrorResponse
} from "@angular/common/http";
import { throwError, Observable, BehaviorSubject, of } from "rxjs";
import { catchError, filter, take, switchMap } from "rxjs/operators";
@Injectable()
export class AuthInterceptor implements HttpInterceptor {
private AUTH_HEADER = "Authorization";
private token = "secrettoken";
private refreshTokenInProgress = false;
private refreshTokenSubject: BehaviorSubject<any> = new BehaviorSubject<any>(
null
);
intercept(
req: HttpRequest<any>,
next: HttpHandler
): Observable<HttpEvent<any>> {
if (!req.headers.has("Content-Type")) {
req = req.clone({
headers: req.headers.set("Content-Type", "application/json")
}); …Run Code Online (Sandbox Code Playgroud) angular ×2
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