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我正在使用 altjs 作为我的 Flux 实现来构建一个 React 应用程序。当我尝试从前端创建/删除一个项目时，无论我将什么作为参数传递给创建/删除函数，它总是以传递整个状态而告终。

例如：我正在尝试删除 id=1 的项目。我在该项目上单击删除，然后仅将 id 传递给组件中的删除函数。该函数再次调用删除服务并传递 id。一旦到达存储层，它就会拥有组件的整个状态，而不仅仅是传递的 id。

我对 React/Flux 还是很陌生，不知道我做错了什么或者为什么会这样。

主成分删除功能：

deleteItem = (id) => {
        console.log(id) //logs out 56b36c34ad9c927508c9d14f
        QuestionStore.deleteQuestion(id);
    }

此时 id 仍然只是 id。

问题商店： 

import alt from '../core/alt';
import QuestionActions from '../actions/QuestionActions';
import QuestionSource from '../sources/QuestionSource';

class QuestionStore {
    constructor() {
        this.bindActions(QuestionActions);
        this.exportAsync(QuestionSource);
        this.loaded = false;
        this.modalIsOpen = false;
        this.data = [];
        this.question = {
            "text": '',
            "tag": [],
            "answer": [],
            "company": [],
            "createdAt": ''
        };
        this.error = null;
        this.questionAdded = null;
        this.questionDeleted = null;
    }

    onGetQuestions(data) {
        if (data === false) {
            this.onFailed();
        } else {
            this.data = data;
            this.loaded = true;
        }
    }

    onCreateQuestion(response) {
        if (response === false) {
            this.onFailed();
        } else {
            this.questionAdded = response;
        }
    }

    onDeleteQuestion(response) {
        if (response === false) {
            this.onFailed();
        } else {
            this.questionDeleted = response;
        }
    }

    onFailed(err) {
        this.loaded = true;
        this.error = "Data unavailable";
    }
}

export default alt.createStore(QuestionStore, 'QuestionStore');

问题来源：

import Api from '../services/QuestionApi';
import QuestionActions from '../actions/QuestionActions';

let QuestionSource = {
    fetchData() {
        return {
            async remote(state) {
                return Api.getQuestions()
            },
            success: QuestionActions.getQuestions
        }
    },

    createQuestion(question) {
        return {
            async remote(question) {
                return Api.createQuestion(question)
            },
            success: QuestionActions.createQuestion
        }
    },

    deleteQuestion(id) {
        //id here is an object of the entire state of QuestionStore
        return {
            async remote(id) {
                return Api.deleteQuestion(id)
            },
            success: QuestionActions.deleteQuestion
        }
    }
};

export default QuestionSource;

一旦达到这一点，id 现在就是组件的整个状态，即使只传递了 id。

4

1 回答 1

2

绑定到动作的第一个参数是存储的状态（exportAsync调用结果的一部分。所以所有参数都向右移动一个，而您调用函数的第一个参数依次成为第二个参数。参见下面的代码示例：

deleteQuestion(state, id) {
    //state here is an object of the entire state of QuestionStore
    //id will be the first argument you provide to the function.
    return {
        async remote(id) {
            return Api.deleteQuestion(id)
        },
        success: QuestionActions.deleteQuestion
    }
}

alt.js 中关于处理异步操作的文档。

于 2016-03-04T17:18:27.403 回答