78 lines
2.2 KiB
TypeScript
78 lines
2.2 KiB
TypeScript
import "reflect-metadata";
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import { BaseEntity, BeforeInsert, BeforeUpdate, EntityMetadata, FindConditions, PrimaryColumn } from "typeorm";
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import { Snowflake } from "../util/Snowflake";
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import "missing-native-js-functions";
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// TODO use class-validator https://typeorm.io/#/validation with class annotators (isPhone/isEmail) combined with types from typescript-json-schema
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// btw. we don't use class-validator for everything, because we need to explicitly set the type instead of deriving it from typescript also it doesn't easily support nested objects
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export class BaseClass extends BaseEntity {
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@PrimaryColumn()
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id: string = Snowflake.generate();
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// @ts-ignore
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constructor(public props?: any) {
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super();
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this.assign(props);
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}
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get construct(): any {
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return this.constructor;
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}
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get metadata() {
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return this.construct.getRepository().metadata as EntityMetadata;
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}
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assign(props: any) {
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if (!props || typeof props !== "object") return;
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delete props.opts;
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delete props.props;
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const properties = new Set(
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this.metadata.columns
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.map((x: any) => x.propertyName)
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.concat(this.metadata.relations.map((x) => x.propertyName))
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);
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// will not include relational properties
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for (const key in props) {
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if (!properties.has(key)) continue;
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// @ts-ignore
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const setter = this[`set${key.capitalize()}`];
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if (setter) {
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setter.call(this, props[key]);
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} else {
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// @ts-ignore
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this[key] = props[key];
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}
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}
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}
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@BeforeUpdate()
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@BeforeInsert()
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validate() {
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this.assign(this.props);
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return this;
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}
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toJSON(): any {
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return Object.fromEntries(
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this.metadata.columns // @ts-ignore
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.map((x) => [x.propertyName, this[x.propertyName]]) // @ts-ignore
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.concat(this.metadata.relations.map((x) => [x.propertyName, this[x.propertyName]]))
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);
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}
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static increment<T extends BaseClass>(conditions: FindConditions<T>, propertyPath: string, value: number | string) {
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const repository = this.getRepository();
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return repository.increment(conditions, propertyPath, value);
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}
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static decrement<T extends BaseClass>(conditions: FindConditions<T>, propertyPath: string, value: number | string) {
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const repository = this.getRepository();
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return repository.decrement(conditions, propertyPath, value);
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}
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}
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