60 lines
1.4 KiB
TypeScript
60 lines
1.4 KiB
TypeScript
import { Column, Entity, JoinTable, ManyToMany, ManyToOne, PrimaryGeneratedColumn } from 'typeorm';
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import { Source } from './source';
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import { Work } from './work';
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/**
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* A copy is the digital counterpart of a work.
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* It corresponds to a unique file or set of files which represent the work on the users device.
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*
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* Multiple works can have multiple copies (think of different scans of a physical work, or lossy compression).
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*/
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@Entity()
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export class Copy implements IdentifiableEntityInterface {
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@PrimaryGeneratedColumn()
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public id!: number;
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/**
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* the work this entity is a copy of
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*/
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@ManyToOne(() => Work, (work: Work) => work.copies, {
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nullable: false,
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onDelete: 'CASCADE',
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onUpdate: 'CASCADE',
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})
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public original!: Promise<Work>;
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/**
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* where to find this specific copy
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*/
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@ManyToMany(() => Source, (source: Source) => source.copies)
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@JoinTable()
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public sources!: Promise<Source[]>;
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/**
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* identifying hash of the file contents
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*/
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@Column({
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nullable: false,
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default: '',
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})
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public hash!: string;
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/**
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* device location of the copy
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*/
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@Column('text', {
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nullable: true,
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})
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public location!: string | null;
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/**
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* the ordering of the copies belonging to the same work,
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* lower number is higher ranked
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*/
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@Column({
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nullable: false,
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default: 0,
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})
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public ranking!: number;
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}
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