Question

我正在使用redux-observable来触发两个动作。第一个动作是基于条件为真，第二个动作应该在500秒时使用去抖动触发。两个可观察量都可以并行运行，而不是相互依赖。

到目前为止，我想出了以下哪些不起作用。

export const updateContent = (content$, { getState }) => {
    return content$.ofType(actionTypes.REQ_CHANGE_EDIT)
        .flatMap(action =>
            Observable.forkJoin(
                Observable.if(() => isChanged(getState()),
                    Observable.of(({ type: actionTypes.CHANGE_EDIT, changed: true }))),
                Observable.of({ type: actionTypes.CACHE_CONTENT, isCached: false }).debounceTime(500),
            ));

};

Answer 1

尝试使用combineLatest而不是forkjoin并强制从.if operator

发出初始值

var keystone = require('keystone'),
    Types = keystone.Field.Types;

var Post = new keystone.List('Post', {
    autokey: { path: 'slug', from: 'newKey', unique: true },
    map: { name: 'newKey' },
    defaultSort: '-createdAt'
});

Post.add({
    newKey: { type: Types.Text, watch: true, noedit: true, value: function (callback) {
        var author = this.author;
        var title = this.title;
        keystone.list('User').model.findOne({_id: this.author.toString()}).exec(function (err, u) {
            if (err) {
                callback(err, "unknown")
            } else {
                var r = "("+u.name.first+" "+u.name.last+")-"+title;
                callback(null, r)
            }
        });
    }},
    title: { type: String, required: true, index: true, initial: true },
    state: { type: Types.Select, options: 'draft, published, archived', default: 'draft' },
    author: { type: Types.Relationship, ref: 'User', index: true, initial: true },
    createdAt: { type: Date, default: Date.now },
    publishedAt: Date,
    image: { type: Types.CloudinaryImage },
    content: {
        brief: { type: Types.Html, wysiwyg: true, height: 150 },
        extended: { type: Types.Html, wysiwyg: true, height: 400 }
    }
});

Post.defaultColumns = 'title, state|20%, author, publishedAt|15%'
Post.register();

可观察到基于条件和去抖时间并行发送

1 个答案: