59 lines
1.3 KiB
JavaScript
59 lines
1.3 KiB
JavaScript
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export default class interrelated {
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constructor() {
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this.channels = new Map()
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this.users = new Map()
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}
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// 将两种类型的不同信息相关连
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set(fid, uid) {
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let channel = this.channels.get(fid) || new Map()
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if (!channel.size) this.channels.set(fid, channel)
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channel.set(uid, true)
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let user = this.users.get(uid) || new Map()
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if (!user.size) this.users.set(uid, user)
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user.set(fid, true)
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}
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// 取消关联
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delete(fid, uid) {
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let channel = this.channels.get(fid)
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if (channel && channel.size) channel.delete(uid)
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let user = this.users.get(uid)
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if (user && user.size) user.delete(fid)
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}
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// 读取类型 A 关联的 B
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atob(uid, callback) {
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let channel = this.channels.get(uid)
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if (channel && channel.size) {
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channel.forEach((value, key) => {
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callback(key)
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})
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}
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}
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// 读取类型 B 关联的 A
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btoa(fid, callback) {
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let user = this.users.get(fid)
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if (user && user.size) {
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user.forEach((value, key) => {
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callback(key)
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})
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}
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}
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// 读取所有 a
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aall(uid, callback) {
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this.channels.forEach((value, key) => {
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callback(key)
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})
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}
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// 读取所有 b
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ball(fid, callback) {
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this.users.forEach((value, key) => {
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callback(key)
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})
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}
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}
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